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1. Master the pressing pressure
The yield, dry matter and nutrient composition of green manure are not the same at different growth and development stages. It should be selected to turn over when green manure yield is high and nutrient accumulation is high to improve the fertilizer efficiency of green manure.
The suitable period for the turnover of Chinese milk vetch is generally about 5 days after the flowering, and the decomposing time should be maintained for 15-20 days with the sowing date of the rice. The broad bean is turned over from the beginning of the flowering to the early stage of the pod, and is separated from the sowing time of the rice. -30 days.
2. Control the number of turns
The amount of green manure is not as good as possible, because green manure will produce toxic substances such as hydrogen sulfide in the process of decomposition. Too much will cause rice seed poisoning and affect its normal growth. Therefore, the amount of green manure pressure should be controlled at about 1500-2000 kg per mu.
3. Master the depth of overturning
The concentration of green manure is generally about 15-20 cm. If it is too deep, it will not be fermented due to lack of oxygen. If it is too shallow, it will not be fully decomposed and it will be difficult to exert fertilizer effect. In addition, green manure should be timely flooded after it is turned over to accelerate its decomposition and decay, and improve the conversion rate of green manure.
Green manure pressure technical advice
At present, the growth of green manure has entered the flowering period, and the green manure will be pressed soon. In order to effectively improve the efficiency of green manure, the following turning techniques should be mastered when green manure is turned over:
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