In recent years, vegetable growers pay more attention to organic fertilizer. This is partly because organic fertilizer production is more and more advanced and the effect of fertilizer is greatly improved. On the other hand, using organic fertilizer improves soil physical and chemical properties and the absorption and utilization of various types of nutrients. If you insist on using organic fertilizer, it effectively maintains soil condition. In addition, in soil improvement for new greenhouse or multi-year old greenhouse, organic fertilizer has more advantages. What are differences between commercial organic fertilizer and farm manure?
Indore method. He used leaves, waste and animal manure to make a pile that was about 1.5 meters high. Turn and mix the composting every few months. The whole production process was six months. After then the method was improved to Beccari method, and it used multiple pile and turned it more frequently.
In 1922, Becali obtained a patent in Italy about organic anaerobic fermentation. In 1939,
Dr. Earp-Thomasreduced composting time about one to three months. It improved high-temperature composting. In the 1980s, composting factories appeared subsequently. It became a new approach of organic resource for municipal waste, urban sewage sludge, waste in agriculture, forestry and animal husbandry and animal manure. And then it produced many composting product with fertilizer making machine, like cake, pellets and powder. Now it has developed into biological organic fertilizer.
As for farm yard manure, it has a long history. For the past several centuries, it has been important fertilizer for agriculture production. In rural areas all over the world, farmers used crop straws, leaves, weeds and animal manure to make pile and fertilizer for long times. However, they all made it by hand. It is characterized by high labor intensity, composting for a long time, limited raw materials, which belongs to open-air composting.
Commercial organic fertilizer production has different production technology and process. It can be made into cake, meal, pellets, powder, liquid, etc. Every organic fertilizer product has corresponding method. For example, organic fertilizer granules production is as followings.
Organic raw materials composting(compost windrow turner)→organic matters crushing and mixing(organic fertilizer crusher and mixer) →raw materials granulation(new type organic fertilizer granulator) → organic fertilizer granules drying and cooling(rotary drum dryer and cooler) → organic fertilizer screening(organic fertilizer screener machine) → organic fertilizer granule packing(automatic organic fertilizer packaging machine)
To make farm yard manure, farmers usually use high temperature composting. The purpose of retting is to make organic raw materials fully fermented. It should be composting into pile and covering layer so that it will have high temperature internally. It can kill bacteria and eggs in high temperature. In this way, fertilizer can be well-composed rapidly.
Because of high absorbent property, commercial organic fertilizer is usually packed in packing bags or packing bottle. As for organic fertilizer granules, it should be storage in packing bags. In the meanwhile, it would be better to avoid mass storage. While packing the organic fertilizer pellets, it can use double-ply bags. Use plastic bag on internal lining and woven bag on outer packing. Whatever stack method, pile height should be controlled. For example, store 20-40 kg per bag organic fertilizer and control 20 bags per pile. It is necessary to keep dry and ventilated
Commercial organic fertilizer has more nutrients than farm yard manure, so it has more application. According to different kinds of organic fertilizer products, it has special application and can provide nutrients directionally. In addition, farmers can purchase certain organic fertilizer granular according to different requirements.
Farm yard manure is suitable for small range using, especially popular among smallholders. It can be used for fruit and vegetables cultivation and as base fertilizer for agriculture.
In recent years, with the continuous improvement of people's living standards, people’s life has changed from simply having adequate food and clothing to high life quality. This is consumption transition from high-calorie food to safe, healthy and green food. People pay more attention to green and organic food. The fertilizer is the basis of green food, only the preparation of green fertilizer to achieve this purpose. Nowadays, bio-fertilizer, active organic fertilizer, biochemical compound fertilizer and other non-polluting green ecological series of fertilizer are the most advanced fertilizer in this area. In developed countries, 70-80% of the chemical fertilizer is produced into a scientific and technological content of compound fertilizer and used as special fertilizer. In the meanwhile, commercial organic fertilizer is moving in the direction towards to biological organic fertilizer and new fertilizers.
Farm yard manure will be a long-time presence. It will add more useful substance while composting, like biological agent and mushroom residue. And farm manure will make advances to intensification and scale.