Commodity organic fertilizers are organic fertilizers made from livestock manure, animal and plant residues and other organic-rich resources, and are produced using factory-based organic fertilizers. Compared with farmyard fertilizers, it has the characteristics of relatively high nutrient content and stable quality. Mainly: refined organic fertilizers, organic-inorganic compound fertilizers and bio-organic fertilizers. Organic-inorganic compound fertilizers are quick-acting fertilizers added to organic fertilizers, which are fertilizers with higher nutrient content. Bio-organic fertilizers are fertilizers made up of specific functional microorganisms and harmlessly processed and decomposed organic materials.
Commodity organic fertilizer is generally used as base fertilizer and can also be used as top dressing. In terms of usage, according to different soil fertility recommendations should be different, for high fertility new vegetable fields (organic matter> 2%), can control the amount of refined organic fertilizer in about 300-500 kg / acre; medium fertilizer new vegetable field (organic matter 1.5%-2%) can use 1 ton of refined organic fertilizer; low fertility new vegetable field (organic matter)
Organic-inorganic compound fertilizers have high nutrient content and the amount of base fertilizer should be less than that of refined organic fertilizers. In the middle period of crop growth, top-dressing can also be applied according to the situation. The bio-organic fertilizer should generally be used in conjunction with farmyard fertilizers or commodity organic fertilizers, and the effect is better.
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