Film-mulching culture method of early-sowing corn

Abstract

The invention discloses a film-mulching culture method of early-sowing corn. The film-mulching culture method has evident advantages of drought resistance, moisturizing, temperature increasing, fertility retaining and full seedling protection, weed growth during corn growth can be inhibited, pests can be reduced, the use of pesticides and chemical preparations is reduced, corn growth and development are promoted, early maturity and yield increasing are achieved, early sowing and early harvesting can be achieved by the film-mulching culture, the market can be occupied early, and maximum planting benefits are acquired.

Description

technical field [0001] The invention relates to the technical field of crop cultivation, in particular to a film-covering cultivation method for early-sowed corn. Background technique [0002] The plastic film covering blocks the heat loss of the ridge soil heat radiation and convection, and at the same time blocks the evaporation of the ridge soil moisture, so that the temperature of the soil covered by the plastic film is higher than that of the bare soil. After the plastic film is covered, the light transmittance of the plastic film is very low during the day. High, the light energy of solar radiation directly passes through the plastic film and radiates to the soil covered by the plastic film, and converts the light energy into heat energy. Because the water droplets on the plastic film and the plastic film block the soil from radiating heat, and the airflow caused by the ground surface The heat lost by turbulence, advection and water evaporation conducts to the deep soi...

AI Technical Summary

Problems solved by technology

Soil moisture is an important factor affecting the growth of crops. Covering with mulch film sets up an impermeable barrier on the soil surface. The vertical evaporation of soil moisture is blocked, forcing water to move laterally to evaporate at the place where there is no mulch film or at the exit of the plant, so that the soil evaporation It is greatly reduced, and the plastic film covering prevents heavy rain and rainstorm from pouring over the ridge body, effectively improves the utilization rate of soil and fertilizer nutrients, and can also prevent precipitation from causing soil surface hardening, so that the cultivated layer under the film remains loose for a long time; The spectrum has reflective properties. After the transparent film is attached with fine water droplets under the film, the reflected light effect of the milky white film is close. The stronger the natural light is, the greater the reflected light intensity is. The temperature in the void rises rapidly, and can reach above 60°C in continuous sunny days. High temperature can inhibit the growth of weeds. Therefore, covering crops with plastic film has many advantages in the process of crop cultivation. However, in the actual cultivation process, due to poor management methods of growers Correct and improper operation can be counterproductive. The present invention provides a set of scientific and reasonable corn film-covered cultivation techniques in order to achieve high yield of corn.