Types of organic fertilizers commonly used in fruit tree production

Organic fertilizer also known as farm manure, fruit production, commonly used compost, manure, green manure, cake manure, river mud, poultry manure, human manure, soil manure and so on. Most organic fertilizers need to be decomposed by microorganisms before they can be absorbed by the roots of plants, so they are also called "late-acting fertilizers" and can be used as base fertilizers. Organic fertilizer can effectively improve soil physical and chemical properties, improve soil water and fertilizer retention capacity, improve soil ventilation status. Composting: crop straw, weeds, stems and leaves, leaves, livestock manure and other materials, layer upon layer accumulation, after microbial decomposition and decomposition. In the process of microbial reproduction, appropriate temperature, moisture, ventilation, pH, etc. should be maintained to facilitate microbial reproduction activities. Second, manure, manure: including pigs, cattle, sheep, chickens, ducks and other livestock, animal manure, rich in nitrogen, phosphorus, potassium and other nutrients, after fermentation decomposition as base fertilizer application. Third, human feces: decomposed human feces, belonging to quick-acting nitrogen fertilizer, containing more nitrogen, phosphorus, potassium and organic matter can be combined with quick-acting phosphorus and potassium fertilizer. Ammonia in feces and urine is easy to volatilize and should generally be kept closed. If 2-3% calcium superphosphate is added, it can not only fix nitrogen, but also supplement phosphorus fertilizer in human feces and urine. Manure can be applied in furrows or holes, watered immediately after application and covered with soil to prevent volatilization. Note that undecomposed human excrement is easy to burn roots, so do not apply it directly. 4. Mud fertilizer: The silt of ditches, ponds, marshes, rivers, ponds and urban sewers belongs to mud fertilizer. Contain organic matter more, it is late-acting fertilizer, can be used as orchard base fertilizer. 5. Green manure: green manure plants can be intercropped between rows of orchards, which can be used locally. No stacking, no retting, no field transportation, labor saving. Green manure crops between rows of orchards should be green manure crops with short stems, more tillers, developed roots and luxuriant stems and leaves, avoiding shading fruit trees. VI. Urban garbage: composed of fruit, shell, chicken and fish offal, vegetable leaves, leaves, eggshells, furnace ashes, etc. The garbage mainly comes from families, vegetable markets and road cleaning. It is a compound organic fertilizer containing three elements of nitrogen, phosphorus and potassium similar to compost and manure. After application, it can improve the physical structure of clay and loose soil.