1, green fertilizer tillage
During the cultivation of green manure, it should be held in the period when the highest yield of fresh grass and the highest total content of fertilizers are carried out. Early tillage, although the plants are soft and juicy and perishable, the yield of fresh grass is low, and the total content of fertilizers is also low. On the contrary, when the tillage is too late, the plants tend to be mature and the lignin and cellulose increase, and decomposition and decomposition are difficult. .
2, plough depth and decomposition speed
Decomposition of green manure relies on microbial activity. Therefore, the depth of plowing should take into account the dynamic range of microorganisms in the soil and various factors that affect microbial activity. Microbial activity is generally more prosperous at a depth of 10.0-16.7 cm, so the depth of ploughing should also be used as a guideline.
3, master the decomposition characteristics of green manure
The young green manure crops, especially the easily decomposable legume green manure such as Ziyunying, are initially decomposed rapidly and have a short duration. This kind of green manure is used as a base fertilizer for Ziyunying, and it often causes dragging in later stages. Attention should be paid to the availability of available nitrogen fertilizer such as manure and ammonium sulfate in later stages. Like Tian Jing and Wei Ma, the early decomposition is slow, and the supply of nutrients may be insufficient at the initial stage of basal fertilizer supply, and nitrogen fertilizer is required to be applied in combination with the available nitrogen fertilizer. Second, the green manure of leguminous plants contains more nitrogen, so it is necessary to use phosphorus and potash fertilizers.
4, to prevent poisoning
1 poisoning of organic acids
2 poisoning of hydrogen sulfide
3 Poisoning of ferrous ions
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