First, the application of chicken manure on the ground reduces the effect of chicken manure on soil amendment. Most vegetable roots are mainly distributed in soil layers of 5 to 20 cm. The roots produced on the surface are also called rooting roots. The ability to absorb nutrients and moisture is weak, and because the surface temperature, humidity and other environmental conditions change drastically, the root system is easily injured. Ageing.
Second, the harmful gas generated by the chicken manure exposed to the ground directly enters the air and has a great impact on the blades. After the application of chicken manure, there will be gas hazards. In addition to the reason that the chicken manure is not fully decomposed, the application amount is large, and the ventilation condition of the greenhouse is poor, the distribution of chicken manure is even very important to the ground surface. The soil has a strong adsorption, and the harmful gases such as ammonia generated during the decomposed process of the chicken manure buried in the soil will be absorbed by the soil and cannot enter the air, so that no gas hazard such as ammonia gas will occur.
It is advisable that vegetable growers should dip deep into the soil when using chicken manure. Specific approach: After removing the vegetables from the Shangyu, put chicken droppings into the shed as soon as possible, and then plunge the soil deeper. If there is more soil leaching, use rotary cultivators for 1 or 2 times.
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