The Categories And Functions Of Organic Fertilizer (Two)

  And according to categories of organic fertilizer, they are different functions and applications of organic fertilizer. here is the details of compost, manure, green manure, human and animal manure urine and other farm manure.

  Concentrated application into the tree that is along the outer edge of the canopy to dig a deep 60 cm, 60 cm wide, long 150 cm of a ditch, cut off the green fertilizer plants, after drying into about 10 cm, each pit 50~70 kg, will mix green fertilizer and soil into the pit, fill with the filling with the steadfast, after the irrigation of enough water. New roots began to appear in the fertilizer pit about 20 days after fertilization. 
  Human, animal and poultry feces and urine is a mixture of human, animal and poultry feces and urine, rich in organic matter and various nutrients. The amount of nitrogen in human feces was higher than that in livestock and poultry feces. The nitrogen in human excrement and urine is easy to volatilize loss, should pay attention to collection and storage. The most common method of storage is composting with soil, garbage, weeds, etc. The proportion of composting is based on the principle of fully absorbing fecal and urine juices. Generally, 3~4 times of soil or garbage can be added. Adding 3%~5% calcium superphosphate to feces and urine can reduce the loss of nitrogen and improve the availability of phosphorus. Commercial organic fertilizer refers to the commercial fertilizer made from a large amount of animal and plant residues, excreta and other biological wastes.
   As a result, organic fertilizers can not only supply nutrients and some physiological active substances needed by plants, but also increase soil humus. Its organic colloid can also improve sandy soil, increase soil porosity, improve the structure of clay, improve soil water and fertilizer retention capacity buffer soil acidity, so as to improve soil water, fertilizer, gas, heat condition.
   The application of organic fertilizers, first of all, because of its slow decomposition, can continue to play a continuous fertilizer effect throughout the growth period; Secondly, the concentration of soil solution did not fluctuate, especially after heavy rain and irrigation. In addition, it can alleviate the adverse reaction after applying fertilizer (causing soil compaction, loss of elements or turning phosphorus and potassium into non-giving state) and improve the fertilizer efficiency.
   In non-barrier orchard soil, there was a close relationship between the basic yield of fruit trees and organic matter content, and the organic matter content in orchard soil was high. The basic yield of fruit trees is also high. The opposite is lower. Since ancient times, organic fertilizers have been used as special fertilizers for horticultural crops. After application, fruit trees grow well with stable yield and good fruit quality. The average yield and quality of fruit in China are not high, and the lack of organic fertilizer in orchards is a major factor.