Convert Organic Waste into Fertilizer: Compost Granule Making Machine

In the contemporary world of agriculture and gardening, sustainability is no longer just an option—it’s a necessity. Among the myriad of solutions aimed at promoting sustainable practices, compost granule making stands out as a practical and efficient method to manage organic waste and enrich soil health. At the heart of this process is the Compost Granule Making Machine, an innovation that transforms organic waste into uniform, easy-to-apply granules.

What is a Compost Granule Making Machine?

A Compost Granule granulating machine is an advanced device designed to convert composted organic matter into granules or pellets. These granules not only have a more uniform size and shape but also offer improved handling, storage, and application compared to loose compost. By compacting the compost, the machine enhances its usability, making it a valuable asset for both small-scale gardeners and large-scale agricultural operations.

How Does the Machine Work?

The compost granulation process begins by feeding the composted organic material into the machine. Inside, a combination of pressure and sometimes heat is applied to the material, compacting it into uniform granules. Different machines may utilize various techniques, such as extrusion, rolling, or pelletizing drums, to achieve the desired granule size and consistency. The final product is then cooled, if necessary, and ready for bagging or direct application. Click here for more.

Benefits of Using a Compost Granule Making Machine

1. Enhanced Soil Health: Granulated compost acts as a slow-release fertilizer, providing NPK nutrients over an extended period. This improves soil structure and fertility, promoting robust plant growth.

2. Ease of Application: Granules are easier to spread evenly across fields or gardens. This ensures consistent nutrient distribution, reducing the risk of over-fertilization and nutrient runoff.

3. Improved Storage and Transport: Compared to loose compost, granules are more compact and less prone to dust and odor. This makes them easier to store and transport, reducing waste and improving logistical efficiency.

4. Cost-Effective: By converting organic waste into valuable compost granules, you reduce the need for chemical fertilizers, saving money and promoting eco-friendly practices.

Commonly Used compost pellet making machines for sale
Commonly Used compost pellet making machines for sale

Choosing the Right Machine

When selecting a Compost Granulating Machine, consider factors such as capacity, power consumption, and ease of maintenance. Look for machines made from durable materials and featuring user-friendly controls. It’s also beneficial to choose a machine from a reputable compost fertilizer granulator manufacturer that offers reliable customer support and warranty services.

Conclusion

Investing in a Compost pellet machine is a forward-thinking decision for anyone serious about sustainable agriculture. For the machine details, you can visit https://www.granulatedcompostsolutions.com/product/compost-granulating-machine/

How to Choose an Ideal Organic Fertilizer Granulator ?

Businesses and individuals use organic fertilizer granulators to make organic fertilizer. It is not easy to exchange the function of the organic fertilizer granulator. The organic fertilizer granulator can granulate several types of organic substances after fermentation.

A granulator machine can save you energy since you do not have dry or crush raw materials before granulation. It is, however, more essential to choose the best organic fertilizer granulator in the marketplace.

Keep reading to discover ways to choose a perfect organic fertilizer granulator:

The Standard

It is recommended to check the caliber of the pellet manure machine. High-quality pellet manure machine can last longer. It is actually cheap to maintain them. This can help you save money in the long term. It, however, costs more money to buy them. However they are worth the cost.

Unfortunately, some companies tend not to center on making high-quality granulator machines. They are money selling more granulator machines. So, they generally do not value quality. Tend not to purchase their granulator machines. It can be expensive to maintain them.

New type organic fertilizer granulator for chicken manure
poultry litter granulating machine for sale

The Cost

Though it may be not a good idea to work with price to choose a granular machine, it is much better to compare and contrast the values of multiple granular machine. The cheap granular machines do not last for very long. Actually, they may amount to more money to maintain.

It is best to purchase a granular machine inside your range of prices. Which is why you ought to determine your budget before looking for a chicken manure pellet machine. Additionally, you need to consider the cost of maintaining the granulator machine. Be sure you can afford to keep it.

Get Recommendations

Do not try to test the numerous organic fertilizer granulators available on the market. It could amount to additional money, especially if you have to purchase different granulator machines from different manufacturers. It is cheaper to acquire recommendations from individuals who use granulator machines.

People, who have used granulator machines, can recommend the most effective granulator machines out there. They might have used different granulator machines. They can, therefore, refer you to the correct manufacturer and even supplier. Getting recommendations is the simplest way of finding the right organic fertilizer granulatior machine.

Testimonials

Last, yet not least, search for customer reviews. It can be still smart to get recommendations through your friends as well as other company owners. However, should you not know a person with a granulator machine, you can look for testimonials on the net. Customer reviews may help you make the right decision.

Commercial granulating machine for compound fertilizer
Rotary drum granulator for sale

However, some companies write fake reviews to advertise their granulator machines. They are aware people seek out reviews before purchasing someone online. If you can even get customer references from the company, the greater. It can be helpful to speak with their clientele. They may share their experiences, that can help you end up picking an ideal granulator machine.

Conclusion

It is very important to select an excellent organic fertilizer granules line. It will save you money and time. It can even enhance your productivity. You must, however, do your due diligence to get the best granulator machines on the market.

It is best to use reputable and reliable sellers because they sell high-quality rotary type granulator. It is actually cheaper to employ a high-quality organic fertilizer granulator in the long run.

Lower Costs With All The Compound Fertilizer Granulator

The compound fertilizer granulator shapes your fertilizer into pellets. This machine can process the fertilizer into various kinds of pellets, dependant upon what your needs are. There are lots of pellet shapes from which to choose along with the machine can make a number of shapes easily. This machine is probably the most significant pieces of the fertilizer production line.

Fertilizer is very popular at the moment to help you make lots of money with this plant. Also you can sell your fertilizer for the great price because a lot more people are needed to make it. Fertilizer is at short supply right now, so you can really make a lot of cash once you put money into one of these fertilizer production unit.

The development lines are affordable and you could choose between various different plants. Also you can get the npk fertilizer plant design customized therefore you get exactly what you need. There is a large amount of options when you are looking for a plant and is particularly a smart investment in your business plan about fertilizer.

The design of NPK fertilizer production line
the production line for making NPK fertilizer granules

You can use any kind of animal dung using this plant. The fantastic thing about animal dung is it is cheap and plentiful. You can get it anywhere for cheap or free. The dung is combined with plant matter then it needs to be converted into compost.

The compost has a while to ferment. You can’t turn the dung into fertilizer until it really is totally composted. The compost will have to be turned onto quicken the procedure. You can purchase a composting units for sale that will turn the compost for you and make the process go a whole lot faster. I good compost turner is a superb investment and this will speed compost fertilizer in order to make your fertilizer a great deal faster.

As soon as the compost is fertilized it will probably be ready for that granulator. The compost enters into a huge drum and it rotates and turns the compost into pellets. The drum spins within a certain pattern and it also turns the type of material into quality fertilizer. You should use the granulator cold or you can use it hot.

Samll composting machine for sale
Compost turning machine for cattle manure

The machine for making granular fertilizers produces perfect pellets any time you utilize it and you will easily choose multiple types of pellets to make. This machine is essential once you have a fertilizer production line and will also make your entire process so much easier. You won’t have to wait a long time to make the fertilizer and also the process will be far more easy and faster.

A top quality fertilizer machine is an excellent investment for your personal business plus it makes things far less difficult. You may quickly produce all of the fertilizer you need and be ready to market it.

This equipment is great because they help you make a great deal money. An make a move beneficial to environmental surroundings and make money concurrently when you purchase a quality fertilizer production line. The drum rotary granulator is merely what you need to tie everything together and produce a finished product.

Tips To Get A New Organic Fertilizer Machine With Your Fertilizer Production Factory

Tips To Get A New Organic Fertilizer Machine With Your Fertilizer Production Factory

A fertilizer production factory can accelerate the procedure of producing organic fertilizer for your personal business. There are different types of organic fertilizer you could create. The type of fertilizer production equipment that you are using can alter just how much you can actually produce. Lots of people create loads of organic fertilizer using compost turning machines. Others are likely to use a commercial compost windrow turner. For those that want the maximum quantity of compost available, compost fertilizer and granular organic fertilizer manufacturing factory is the handiest.

The Way To Produce Organic Fertilizer

If you do this without machinery, you can just collect raw materials minimizing it as a result of size. You would place piles with this material, along with water, to produce a compost pile. You could cover this with some form of plastic, and add organic waste including rice husks, sawdust, and many more. Then you can turn this pile occasionally, ensuring that the process of production of compost occurs, ultimately causing the creation of compost. However, this can be a very slow process. What you should use machinery that will help you get this done.

Commercial granulating machine for compound fertilizer
Rotary drum granulator for sale

Machinery For Producing Organic Fertilizer

Pelletizing machine for manure are one of the most widely used. These can be extremely elaborate and therefore are also known as a form of factory. This is because of the many components which can be part of the system. This often starts with a compost crusher machine, then a mixer, using a belt conveyor that leads on the granulator. This may be a very long drum by using a wide diameter where material is going to be placed. It can turn the material for yourself, over the course of several days, producing the compost. From there, the fabric will likely be placed in to a rotary drum dryer machine, attached to a cyclone dust collector. The compost will likely be hot, due to the aerobic process, which explains why it should be placed right into a cooling machine. After you have all of this into position, it is possible to produce a large amount of compost.

How To Find Factories That Can Produce Compost For You Personally

Businesses in China are very well renowned for producing quality machinery for this organic fertilizer process. Everything will probably be connected together once it arrives. This can are the conveyor belt system, screening machines, and packing machines for that final product. Granular organic fertilizer production equipment might be expensive. However, you could find multiple businesses offering very similar items. These factories can be sold for you, enabling you to spend less, and acquire started as quickly as possible.

New type granulating machine for cow dung
Cow dung fertilizer making machine for sale

If you wish to produce the largest volume of fertilizer possible, you may use one of those factories to help you get the work done. After everything is connected, and you will have tested the full system, it will be easy to create tons of compost. This is ideal for firms that can be large that want a substantial amount of this product. You may even be selling it to many other companies. You can actually find companies that can provide a good deal on granular organic fertilizer equipment by searching online.

Buying a Compound Fertilizer Production Equipment at the Factory Price?

Purchasing a compound fertilizer production equipment with a factory cost is not straightforward. There are so many manufacturers there. How can you select the right manufacturer? Furthermore, there are various online marketplaces? How will you pick the best online marketplace?

The cheaper you can find your compound fertilizer production equipment, the better your potential returns. Buying straight from the producer removes the middlemen. You can easily search on the internet to get equipment for npk from manufacturers from around the globe.

Continue reading to discover ways to buy compound fertilizer production equipment at factory price:

Decide to use Domestic Manufacturers or Overseas Manufacturers

It really is cheaper to buy right from the fertilizer plant suppliers. You, therefore, should make a choice from domestic and overseas manufacturers. You are more inclined to get lower prices from overseas manufacturers. It can be, however, tough to use overseas manufacturers as a result of language barriers and reduce manufacturer standards.

Domestic manufacturers, on the other hand, maintain higher manufacturing quality and provide faster shipping times. It is actually, however, costly to use some domestic manufacturers. It really is, therefore, easier to compare the prices of both domestic and overseas manufacturers.

The design of NPK fertilizer production line
the production line for making NPK fertilizer granules

Identify Potential Manufacturers

It is actually time to find the best manufacturer of compound fertilizer production equipment. It could, however, remember to locate the right manufacturer. Deciding on a reliable and communicative manufacturer is very important to the achievements of your company. Ensure that the manufacturer is an excellent fit for the business.

You can use online directories to find the best manufacturers. The web directories list the ideal manufacturers from throughout the world. You may pick a good manufacturer over these online directories. You can even get recommendations from organic fertilizer industry contacts and your family and friends.

NPK granulating machine for sale
Commercial granulating machine for sale

Get Quotes

Once you discover potential manufacturers, now you can question them for their quotes. The makers rarely post their fertilizer granules machine cost on their websites. You will have to request a free quote. You may compare the quotes of your own chosen manufacturers.

Tend not to, however, send the company a lengthy email because they get several quotations requests every day. It is far better to deliver them a short and clear email. It is possible to compare their quotes to get a reasonable manufacturer. The maker will save you money.

Negotiate Discounts

Lots of manufacturers are prepared to strike a deal using their clients. When you obtain the price offer through the manufacturer, will not rush to simply accept their first price offer. It is best to barter. For this reason it is way better to speak with multiple manufacturers.

You can use online marketplaces to discover affordable manufacturers. Online marketplaces facilitate trade between retailers, wholesalers, and manufacturers. You may also post your listing upon an online marketplace to inform manufacturers relating to your needs. You can find reasonable prices on these web based marketplaces.

Conclusion

It takes time and effort to buy granulation machine for npk fertilizer in a factory price. It is far better to purchase it right from the company. By using a manufacturer eliminates the middleman. The company can, therefore, sell you their compound fertilizer production equipment at factory price.

Just What Is The Dry Granulation Technique For Making Fertilizer Granules?

There are several varieties of equipment which can be used for making fertilizer granules. This is basically the best way of storing fertilizer, perhaps for several years, but you do need to have the right equipment for combining materials. Using the dry granulation method, you can expedite their production of this fertilizer, in spite of the tiniest units that are offered. They implement the dry granulation method, allowing you to pelletizer all of the fertilizer you happen to be produced with the composting process. And this is what you may expect if you decide to obtain one of these brilliant machines that could produce fertilizer granules in this manner.

Different Kinds Of Dry Granulation Equipment

There are 2 quite popular varieties of dry granule making machine that are utilized to form granules for this purpose. This consists of a slugging machine, in addition to a roller compactor, both of which have advantages and disadvantages. Each one of them is for production process of npk fertilizer. However, a lot of the businesses will make use of the roller compactor simply because it is in much more efficient type of machinery. It can easily take the dry materials you are providing and condense it to the pellets that you will make use of as fertilizer.

Granulating machine for NPK fertilizer
NPK granulating machine for sale

Why Do Fertilizer Granules Stay Together?

You can find additives which can be used in to the fertilizer to ensure the whole mixture stays together. It all depends about how you will be categorizing the fertilizers you happen to be using. In addition, it depends upon the npk fertilizer mixing machine that you will be putting together. It is very present with produce NPK fertilizer. Nitrogen is amongst the most significant elements of any kind of soil you are planting in. You will additionally need to use phosphorus and potassium to obtain that proper balance. All this is held together by binders that will interconnect together with the fertilizer. To produce this work, you will need to understand how these machines actually function.

How Can These Machines Work?

The reason they are able to produce pellets is due to a rotating motion. The raw materials are simply just clumped into balls. They can be made into cylindrical pellets which can also be stored. The rate from which the equipment returns will define how quickly the pellets could be produced. Whether you are utilizing a granulating disc, or rotary drum granulator, the procedure is always the same. Just make sure that you are using a regular power source to keep our prime speeds desire for this procedure to function.

Double Rolloer Granulator for Sale in SX

Granulation compression could very well be the most advantageous strategy to store fertilizer. By taking out the moisture from your mixture you are increasing the system, you can be sure that the pellets will dry and sustain their integrity. Creating fertilizer granules will not be that hard to do using the proper fertilizer granules makers. It must take just a few hours, from beginning to end, to make many bags of this material. You can then store what remains, or market it to many other farmers, that may benefit from the fertilizer you will be producing utilizing these machines.

Do You Know The Key Steps At The Same Time Of Making NPK Fertilizer?

Fertilizer which is made out of nitrogen, potassium, plus phosphorus can be created in mass quantities. It simply is dependent upon the type of machinery you possess available and your source for these particular materials that you are used to create the compost. Most of the time, you should have a large fertilizer production plant, able to generating a lot of this material on a regular basis. NPK is one of the most popular kinds of fertilizer. If you would like to utilize it, it is possible to look for a company that will help you in producing all the of this material as you need for the business.

Which Kind Of Machinery What You Need?

The machinery that you will want will include a number of components including a roller granulator, dryer, plus a conveyor belt system. These will all be connected together to help you make the exact amount of fertilizer that you will want for the business. Regardless if you are selling NPK or utilizing it for your own crops, it is possible to benefit by producing your own material every day. Remember that in addition, you require a mixer machine, a granulator machine, plus a robust dryer drum for that largest scale operations. Also you can get a npk fertilizer production plant that can produce NPK for you personally for those who have a reduced business.

Pan Pelletizer for Compound Fertilizer Granulation
Disk granulating machine for sale

How Long Does It Use To Have This Machinery

It shouldn’t take very long by any means to get this fertilizer drum granulation machine. In fact, you must be able to find several different companies that can assist you. They will likely produce among the most reliable units in the market. A lot of them can have various sizes of individual machines and incredibly elaborate NPK fertilizer production plants. While you receive estimates from each company, they can tell you how much it will cost and exactly how much production you can expect. This info will probably be invaluable as you are picking out what type will give you the ideal compound fertiliser production plant. Once you have placed your order, and definately will likely take a couple of weeks for this to reach you.

Reasons To Get This Machinery

You might like to consider buying this granulator for npk if you are currently purchasing a huge selection of plenty of NPK regularly. It’s better to have full control of the mixture of phosphorus, nitrogen, and potassium you happen to be using. You may affect the ratios, depending on the crops you are planting, so that you have the correct balance of nutrients inside the soil. It also offers you the additional good thing about having the ability to sell the extra material that you will be producing.

NPK fertilizer production line
The design of NPK fertilizer making plant

If you want to produce this product regularly, investing in your very own npk granulating plant would be a good investment. You might not realize how simple it is actually to discover the companies that happen to be producing them every day. In some cases, you will be able to save a large amount on the investment within this machinery. It just depends on how simply how much research one does, and the way much you understand about the machinery for the manufacturing of fertilizer with this particular unique blend of nutrients.

What You Ought To Know On How to Set up a Fertilizer Business

In addition to commercial use, fertilizers are commonly used for agricultural purposes, including improving the yield per hectare. Fertilizer businesses can operate as sole proprietorships, partnerships, LLPs, or Pvt. Ltds. To get started the whole process of starting a fertilizer business, you ought to first get a marketing license in the directorate of agriculture in your state. Several state regulations govern making use and storage of certain pesticides and fertilizers.

To begin an organic fertilizer production business plan, you must know your niche market and know the way your product or service will manage to benefit the growing demand for fertilizers with your region. You are able to give attention to organic farming or even the growing demand for commercial agriculture. Additionally, you can also target gardening enthusiasts who will need fertilizers to further improve their soil. The demand for nitrogen fertilizers will grow in the future as increasing numbers of people consider this method of agriculture with regard to their crops.

The design of chicken manure fertilizer production line
3 t/h organic fertilizer production line

After deciding to open a fertilizer business, you need to determine your market. Will you decide to serve large commercial farms, or will you target individual entities? Identifying your market will allow you to focus your time and effort and build a precise strategic business plan for your personal new venture. This will assist you to determine the degree of service you are going to provide and the quantity of employees you should hire. After all, you would like to improve your profits whilst keeping your clients happy.

In order to open your very own fertilize factory, you need to first write your own business plan for this. This business plan will become your roadmap through the entire process of setting up and running the company. It will serve as your blueprint for fulfillment. This type of company is highly regulated within the U.S. and around the world, so be sure you know the requirements for starting your own fertilizer business before you start manure production from waste.

Another choice is starting an industrial compost production. This can be a growing market and it is not seasonal. Organic fertilizer is additionally encouraged because of its environmental benefits. The truth is, organic farms are the most significant customers for organic fertilizer manufacturers. Organic farms, particularly those which use organic methods, use organic fertilizer. This really is a business opportunity that provides excellent scope for growth and profits. With all the right compost production equipment, you could potentially start an organic fertilizer business and initiate making profits quickly.

The procedure of compost cattle manure
Commercial composting machine for sale

It is possible to market your organic fertilizer products on social websites platforms, blogs, and forums. You may also promote your fertilizer on B2B websites where customers can order in big amounts and consumers can find from you. Furthermore, you can include sales commission agents for your business. You can also market your organic fertilizer products on your own website. But have you thought about selling your product? Here are some ways to advertise your fertilizer products online.

As you can tell it is not necessarily an easy process of manufacturing of organic fertilizer pellets to begin your own personal fertilizer business and the majority of people usually do not wake up using that intention. However, with a few research and planning it is actually a viable business with the proper strategy.

How Much Should you Invest In A Commercial Compound Fertilizer Plant?

Can you use compound fertilizer for your personal gardening business? You may have a big commercial agricultural plant where you are producing your very own compound fertilizer. You will have to put money into various sorts of machinery to keep up with your very own production levels. However, when you are also producing this for other businesses, a greater facility may be needed. The following is a review of the best way to quickly obtain compound fertilizer components to make a commercial plant to produce this product on a regular basis.

Different Components At A Compound Fertilizer Plant

You can find a good number of different components that must all interact to produce the NPK fertilizer that you will need for the npk fertilizer business plan. There will be some conveyor belts that will take the materials to each and every location. There can also be a distributor, granulator machine, as well as the blender npk. The bucket elevator is really what will take everything together, plus there will be a crushing machine. The packing machine, stock bin, along with the mixer will be associated with produce this fertilizer on a continuous basis.

The design of NPK fertilizer production line
the production line for making NPK fertilizer granules

How To Obtain These Elements For Less

The best way to secure the lowest possible prices would be to obtain everything from a single distributor. These are typically npk fertilizer making machine supplier which are creating the whole apparatus, and definately will specifically design each component to operate flawlessly with all the others. Maybe you have other sources for different components for example the granulator, mixer, and even the dryer, but you might find the greatest discounts will come from countries like China. You can get individual businesses that produce these systems that will make npk fertilizer for sale.

Where To Find One That Will Continue To Work Along With Your Business

Some of these companies can provide an exclusive discount for units they are currently advertising. They may have older units that may be significantly less expensive. Moving them out will let them have additional space for first time and improved models that they may manufacture and distribute. By contacting as much businesses that you can, you may get quotes back from the different companies that can assist you. Shipping these individual components also can enhance the final cost. This will depend upon where your facility is found and also the method to obtain these components. Eventually, your quest will renew to a company that are able to offer a special deal npk compound fertilizer production lines which you can use to make NPK and other types of fertilizer.

THe design of fertilizer production line
Production line for large-scale fertilizer making plant

In case you have not even invested in a top quality commercial fertilizer making plant, it could be a really good investment. Instead of receiving the fertilizer that is required for the business, you can instead buy a fertilizer plant that can make it to suit your needs. This offers you ultimate power over the consistency of your fertilizer, and control over what you can produce. Creating this for your self, or perhaps for others in your community, is obviously possible once you have one of the best commercial compound fertilizer plants for your use.

What You Should Know Before You Buy A Granulating Machine To Process Organic Compost?

As a way to process a large amount of animal manure promptly, manure granulator would be the most optimal choice. It is really an excellent component of machinery, created for converting the manure into pellets which you can use for your crops. These could be very large, depending on their capacity for creating pellets that you can package and sell. It might use a wide variety of manure including livestock manure, and poultry farm manure, all of these can have high concentrations of nitrogen, phosphorus, and potassium for your personal farm. So that you can purchase one that may be reasonably priced, let’s take a look at what your alternatives are when getting an animal manure granulator.

How Do Granulators Create Fertilizer Pellets?

How to granulate fertilizers? To make fertilizer pellets, you are going to need within a machine that may process this material into pellet form. There are various various kinds of machines that may perform this procedure. This may add a rotary drum granulating machine, an organic fertilizer granulator, and discs type granulators that are very small but simple to operate. Every one of these will work based upon the entire process of rotation and force. The faster which they spin, the faster you will realize pellets made. These could work along with the fertilizer rotary drum dryer, conveyor belt system, as well as a storage silo system, making it possible to create as much pellets as you have.

Where Could You Buy One Of These Machines?

The businesses focusing on the production of these machines are numerous. You can find businesses around the world that charge very fair prices for them, despite their large size or large output capacity. The fertilizer pellet machine suppliers that you deal with must be popular for its ability to produce quality machinery quickly. If you have a unique request, they must be able to accommodate your need to have a particular type of animal granulator machine. On the net, it will be possible to locate numerous firms that are advertising their goods that may make the pellets for you personally.

Are You Able To Cut Costs Whenever You Buy One?

If you wish to save a considerable amount of cash on your purchase, you could start with something relatively small. Pellet machines small for fertilizer is are normally what people purchase that do not mind a tiny bit of output. This is because the actual size of the granulator is comparatively narrow. If you want something larger, like a organic fertilizer disc granulator, you may need a substantial level of room. After you have estimates back from different firms that manufacture them, you are able to pick one that is priced affordably to suit your needs.

In order to accelerate the rate from which you are able to create fertilizer pellets, consider utilizing one of many latest animal manure granulator machines available on the market. You can purchase them online, or this can be done transaction on the telephone, leading to the eventual delivery of your respective manure granulator. The actual size of the system, and the way many components that it has, could affect your final choice. Always keep in mind how big your farming operations as well as the overall dimensions of the granulator you will use for this kind of project for making of organic fertilizers.