Mulching corn has increased mulch film coverage on the basis of direct exposure to open field corn. Therefore, in addition to guaranteeing the quality requirements for direct seeding of direct exposure to open field, we must also ensure the requirements for mulching of mulching film in order to give full play to the effect of temperature increase and soil conservation on mulching film and realize full seedling sowing. To achieve Miao Qi, Miao uniform, Miao Zhuang's goal.

The principle of plastic film covering is “flat, strict, tight, and wide”, that is, the ground is smooth, the membrane is pressed tightly, the membrane surface is compacted, and the lighting surface is wide.

(1) Real-time film sowing. The greatest role of mulch film coverage is to increase the temperature and protect the concrete. Generally, the film coverage can be increased by 2 to 4 degrees, and sowing time can be 5 to 7 days ahead of direct exposure to open field corn. According to the weather and soil moisture, timely filming and sowing are needed, and the film will lose the heat preservation effect of the plastic film too late.

(2) Film formation. The mulching film spreads flatly on the ground, moderate in tightness, and easily broken. If it is too loose, it will be swung up and down by the wind.

(3) The film surface is flat, flat, and has a large lighting surface. Membrane edges are buried vertically in the soil. Each side of the soil is less than 7.5 centimeters in diameter, and both sides of the soil are less than 15 centimeters in order to increase the light-receiving area of ​​the mulch and increase the effect of warming and protecting the soil. Locomotive operation speed should be maintained at 5-6 kilometers per hour is appropriate to keep the membrane surface clean; speed is too fast, the pressure of soil and soil will be sprinkled to the middle of the film, affecting the lighting effect.

(4) Membrane edge compaction, membrane lines should be straight. The seedlings were 10 cm away from the membrane and the soil was tightly pressed by the membrane. Membrane on demand, hole cover thickness of 1.5-2 cm, hole leakage rate of less than 5%.

(5) Windproof film. Windbreak removal film is a key part of the cultivation of plastic film. When mechanical filming is planted, artificial auxiliary inspection shall be carried out to determine whether the edges of the film are compacted. At the same time, a piece of small soil that is perpendicular to the line shall be struck every 5 to 10 meters on the film. The amount of soil shall be moderate and the distribution shall be uniform.

Fresh Plum

Fresh Plum Fruit,Plum Dried Fruit,Fruit Sour Plum,Sweet Sour Plum

Laiwu Manhing Vegetables Fruits Corporation , https://www.manhingfood.com