Video of the Best Cultivation Method for Maize Seedlings

1, reasonable close planting. The suitable density of high-oil corn is 4000 ~ 4500 plants per mu. In order to reduce the number of empty stems and improve the uniformity of the population, the number of seedlings should be about 2 times of the suitable planting density; At the stage of 4-5 leaves, the number of seedlings should be 1.3 ~ 1.5 times of the suitable planting density; The upper limit of suitable planting density should be planting density. Auxiliary pollination can be combined at the silking stage, which can eliminate empty stalks and ensure the uniformity of the population.

2. Scientific fertilization. In order to promote plant growth and increase grain weight and oil content, nitrogen, phosphorus and potassium fertilizer should be added. Generally speaking, organic fertilizer 1000-2000 kg, phosphorus pentoxide 8 kg, nitrogen fertilizer 8- 10 kg, zinc sulfate 1-2 kg, nitrogen fertilizer 2-3 g at seedling stage, 5-7 days after jointing. Apply nitrogen fertilizer 10 ~ 12kg.

3. Chemical adjustment. High-oil corn plants are usually 2.5 to 2.8 meters high. Controlling high resistance is one of the key measures for high yield of high oil corn. Generally speaking, 30 ml of corn can be sprayed per mu when it is in a large area, or a new growth regulator, Vitaline, can be sprayed per mu when it is in a large area.

4. Deal with pests and diseases in time. High-oil corn has strong resistance to leaf blight, but the incidence of corn borer is high. This control method can be used in the big trumpet stage, with 3 ~ 5 kg of mites, 3 ~ 5 kg of chlorpyrifos and 2 kg of carbofuran granules. In high-incidence areas, it can effectively reduce the loss of bamboo shoots and ensure high yield and harvest if it is applied to pistil at the silking stage.