Key points of planting techniques of Fruit Corn

Fruit and corn planting techniques: first, the selection of planting land: the soil is fertile and loose, the sun is sufficient, drainage and irrigation is convenient, pay attention to the field can not accumulate water, is an important basis to obtain high yield. Second, raising seedlings: nutrition cup (plate) seedling transplanting is conducive to seedling management, ensure the number of effective plants per mu, ensure neat growth and save seeds. The nutrition cup can be 8 × 8 or 6 × 6, and the nutrition plate is 5 × 5 with 48 holes in each plate and one seed in each hole. Direct seeding is beneficial to seedling emergence. When sowing, the germ of the seed is facing down vertically, cover the soil 1.5ml 2 cm, cover the soil with garbage, but do not use large (thick) soil, so as not to affect the emergence of seedlings. Nutritious soil is mixed with garbage soil or burning soil, adding 2 kg of zinc sulfate and 5 kg of calcium, magnesium and phosphorus per mu. Keep the moisture of the nutrition cup after sowing to ensure that the seeds absorb water and germinate. Third, transplanting: directional transplanting, transplanting in time from two leaves to three leaves, ensuring that the leaves of each plant are facing the same, which is conducive to light transmission, ventilation and avoid poor pollination. Planting 2800 plants per mu in spring, 2600 per mu in summer and 2800 in late autumn. Fourth, fertilization: it is mainly based on base fertilizer, which accounts for more than 80% of the total fertilizer. Based on the yield of 3000 jin of fresh sticks per mu, 18 kg of pure nitrogen is needed per mu, and about 40 kg of urea is needed per mu according to the 46% urea content. It needs 8 kilograms of phosphorus per mu and 50 kilograms of superphosphate per mu with 16% superphosphate as an example. Need 19 kilograms of potassium per mu, take 50% potassium sulfate as an example, 40 kilograms of potassium sulfate per mu. Fertilizing is best applied. The utilization rate of fertilizer buried in the ground is very low. Fifth, topdressing: according to the growth of the plant, consider whether to topdressing, how much fertilizer. Topdressing should be applied to ensure that the plant absorbs fertilizer in time. Topdressing is usually in the middle ploughing (5mur6 leaves) or heading. Sixth, pay attention to the prevention and control of diseases and insect pests: during the growth period of corn, attention should be paid to the prevention and control of bacterial wilt (stem rot) and leaf spot. The disease should be mainly prevented, and should be sprayed twice before the rainy season, or when the field humidity is high, it should be prevented in time. Corn borer is the main insect, pay attention to observation during male selection, and timely prevention and control of insect pests. Generally speaking, it can be done twice with 1m / m / m. 7. Timely harvest: generally, it is ripe after 18-22 days of flowering in summer and harvested in the milk-ripe period. The quality is the best and the yield is the highest. At this time, the silk turns black and the grain is light golden yellow, which is better than when the color on the control poster is similar.