Maize is one of the important food crops in China, and it also plays an extremely important role in planting. Therefore, in order to increase the yield and quality of corn and increase the income of farmers, it is necessary to actively study corn planting techniques and pest control measures. . The following small series takes everyone to learn about corn high-yield planting techniques and pest control. 1 High-yield planting techniques for corn 1.1 sowing Whether in southern or northern China, temperature and moisture are important factors influencing the germination of corn seeds. Therefore, in order to achieve high yield of corn, sowing must be carried out at a temperature suitable for seed germination. With long-term research, it can be known that 6~8 °C is the best germination temperature of corn, and the growth of maize seedlings is slow when the temperature is 10~12 °C. However, in order to ensure that the corn seedlings grow stronger and accelerate the growth rate of the seedlings, the depth of the corn sowing must be appropriate, as much as possible, 4 to 6 cm. If the soil texture is sticky, the moisture is better, so it may be appropriate; Loose soil texture, easy to dry sandy soil, may be appropriate deeper. The reason is that the deeper the sowing depth, the later the emergence time is; the late emergence of seedlings will affect the growth of seedlings. According to the precision seeding quality requirements, the line spacing is consistent, the line is accurate, the grain is accurate and uniform, the depth is consistent, the soil is good, the crack is firm, and the whole seedling is broadcast. Seeds and seed fertilizers are sown separately to prevent seed and fertilizer mixing. 1.2 Properly carried out In the growth process of corn, suitable time seedlings can avoid crowding of seedlings, shading each other, saving soil nutrients and water, so as to facilitate the cultivation of strong seedlings. The seedlings should be combined with the growth of the corn. When the third leaf of the corn seedlings is taken out and grows to 2~3cm, the seedlings can be carried out. When carrying out the seedlings, keep the seedlings evenly, in accordance with the principle of going weak and staying strong, going to stay small, staying sick and staying healthy. According to the characteristics of the variety, soil fertility, management level, target yield, determine the reasonable planting density, leaving appropriate space for the growth of seedlings. At the same time, when planting, if the density is too dense, it will cause water and nutrient deficiency in the seedlings, which will lead to the occurrence of seedling lodging and affect the overall yield of corn. Conversely, if the planting density is too sparse, the goal of high yield is difficult to achieve. 1.3 Water and fertilizer management in important periods 1.3.1 Seedling stage The amount of water contained in the soil will affect the normal growth of the seedlings. Therefore, in order to avoid the occurrence of damage during the seedling period, the soil can be properly dried and the amount of water can be properly controlled. 1.3.2 Big bell period In order to effectively increase the number of ears and ensure that the vegetative growth of corn can be normally converted to reproductive growth, the photosynthesis of the leaves should be accelerated, so that the corn can get sufficient water and nutrients during this period to prevent damage to the leaves. 1.3.3 silking period In order to ensure the yield of corn, it is necessary to prevent excessive application of nitrogen fertilizer. The reason is that the application of excessive nitrogen fertilizer affects the flowering period of the male and female ears. 1.3.4 wax maturity and maturity The wax maturity and ripening period directly affect the high quality and high yield of corn planting. In the wax maturity and ripening period, the corn endosperm is waxy, and the corn kernel and the thousandth maximum are similar. After that, the corn kernel milk line is no longer present, and the black layer appears at the base. 2 Pest control technology 2.1 Prevention and treatment of corn diseases In the case of continuous rainy days and low temperatures, corn is susceptible to sheath blight or size spots. Therefore, in the process of selecting corn varieties, varieties with strong disease resistance should be selected, and corn should be planted in an environment with better drainage performance. After the disease occurs, it is necessary to actively use drugs for prevention and treatment. In addition, in the process of planting corn, it is easy to suffer from black silk disease, therefore, it should also ensure that the corn variety has a strong ability to resist black silk disease. On this basis, reasonable intercropping and timely rotation should be carried out to change the microclimate in the field, which is conducive to ventilation and light transmission, reducing field humidity and reducing field seedlings, thereby reducing the occurrence and harm of diseases. 2.2 Prevention of corn pests In the process of planting corn, it is easy to cause pests. The more common pests such as aphids, corn borers and armyworms implement the plant protection policy of “prevention first, comprehensive preventionâ€. The main control measures are as follows: The above is all the content that Hui Nong.com has brought to you today. If you are also a corn grower, you can refer to the main points of this article! Tetanus Vaccine,Hepatitis B Vaccine For Adults,Tetanus Booster,Td Vaccine FOSHAN PHARMA CO., LTD. , https://www.fspharmamedicine.com
