First, preparatory work before sowing (A) farmland, turned corn promptly after the harvest plough land, through the sun to loosen the soil, increase the decomposition of soil organic matter, promote the structural properties of the soil to become better.
(2) In accordance with local conditions and selection of improved varieties, early maturing varieties should be selected in areas with high altitudes, and medium and late-maturing varieties should be selected in the dam area. A reasonable mix of seeds should be used to increase the yield of corn.
(C) drying seeds before sowing seeds for 1-2 days, and the emergence of mildew worms, seeds, promote the effective germination of seeds, improve seed germination rate, to achieve the purpose of seedlings.
Second, timely planting, reasonable and close planting of a reasonable density of planting corn according to the characteristics of different varieties to adjust the plant spacing, early varieties, plant dwarf varieties of planting density, seedlings per acre 4500-5000 strains. Planting densities of medium and late-maturing varieties and plant heights were a little less, ranging from 4,000 to 4,500 per mu.
Third, scientific fertilization, to reduce fertilizer loss (a) the application of base fertilizer Mushi farmyard fertilizer 3000-4000?, compound fertilizer 30-40?.
(B) Miaofei corn grow to 5-6 true leaves, should be topdressing urea, Mushi urea 20-30?, To promote rapid and robust seedling growth.
(C) jointing the bell stage (up to 9-10 when the blade length) combined with cultivator soil, urea 20-30? M, compound fertilizer 15-20?, two fertilizers can be mixed application, promote strong stalks and enhance panicle differentiation development.
(4) In the tasseling (smallpox) period, if the lower ear of the corn turns yellow, the urea should be applied properly, and the Mushi should be applied between 10 and 20 so that the maize plant will not be deprived of fertilizer or de-spent during different growth periods. Increase corn production.
Fourth, strengthen the corn field management (a) seedlings after the emergence of seedlings in a timely manner to check seedlings to fill the gap, combined with cultivator weeding seedlings between the seedlings, so that Miao whole, Miao Qi, Miao Zhuang, loose soil without weeds, always raise fertilizer.
(2) Cultivated soil in the cultivator management promotes root growth, prevents lodging, reapplies jointing fertilizer, and promotes jointing, strong culm and ear development.
(3) During the later period of management, the yellowing of the lower leaves of the plants should be properly topdressed with urea, and the plants are too prosperous and vulnerable to wind damage. Maize may be sprayed when there are 5% of the plants to reduce the height and enhance the plant height. Lodging resistance, when the plants have about 10% tasseling, should be emasculated by interlacing or triplicate ponds, promote the transfer of nutrients to the panicle, and enhance the large panicles to increase yield.
V. Prevention and Control of Diseases and Insect Pests (1) Common pest species and control of corn pests There are mainly corn borers, aphids, iron and iron beetles, and ground tigers.
Prevention and control measures: Underground pests can be applied to insecticide in the pond with 1-2% carbofuran per acre; 2000-3000 times of available corn locusts and 1500-2000 times of dichlorvos are sprayed on the damaged parts to prevent and control; Aphids can be oxidized with dimethoate 1500-2000 times, Kang Fu Wei 2000-3000 times water spray control.
(b) Common disease types and prevention and control of corn diseases mainly include smut, leaf spot and so on.
Head smut can be treated with triadimefon and benzoyl pentaoxide seed dressing for seed treatment. Maize size spot disease is firstly selected for disease resistance, reasonable fertilization, reasonable close planting, enhanced ventilation and light transmission, etc. It can also be controlled with 5% Jinggangmycin 1000 times spray.
(2) In accordance with local conditions and selection of improved varieties, early maturing varieties should be selected in areas with high altitudes, and medium and late-maturing varieties should be selected in the dam area. A reasonable mix of seeds should be used to increase the yield of corn.
(C) drying seeds before sowing seeds for 1-2 days, and the emergence of mildew worms, seeds, promote the effective germination of seeds, improve seed germination rate, to achieve the purpose of seedlings.
Second, timely planting, reasonable and close planting of a reasonable density of planting corn according to the characteristics of different varieties to adjust the plant spacing, early varieties, plant dwarf varieties of planting density, seedlings per acre 4500-5000 strains. Planting densities of medium and late-maturing varieties and plant heights were a little less, ranging from 4,000 to 4,500 per mu.
Third, scientific fertilization, to reduce fertilizer loss (a) the application of base fertilizer Mushi farmyard fertilizer 3000-4000?, compound fertilizer 30-40?.
(B) Miaofei corn grow to 5-6 true leaves, should be topdressing urea, Mushi urea 20-30?, To promote rapid and robust seedling growth.
(C) jointing the bell stage (up to 9-10 when the blade length) combined with cultivator soil, urea 20-30? M, compound fertilizer 15-20?, two fertilizers can be mixed application, promote strong stalks and enhance panicle differentiation development.
(4) In the tasseling (smallpox) period, if the lower ear of the corn turns yellow, the urea should be applied properly, and the Mushi should be applied between 10 and 20 so that the maize plant will not be deprived of fertilizer or de-spent during different growth periods. Increase corn production.
Fourth, strengthen the corn field management (a) seedlings after the emergence of seedlings in a timely manner to check seedlings to fill the gap, combined with cultivator weeding seedlings between the seedlings, so that Miao whole, Miao Qi, Miao Zhuang, loose soil without weeds, always raise fertilizer.
(2) Cultivated soil in the cultivator management promotes root growth, prevents lodging, reapplies jointing fertilizer, and promotes jointing, strong culm and ear development.
(3) During the later period of management, the yellowing of the lower leaves of the plants should be properly topdressed with urea, and the plants are too prosperous and vulnerable to wind damage. Maize may be sprayed when there are 5% of the plants to reduce the height and enhance the plant height. Lodging resistance, when the plants have about 10% tasseling, should be emasculated by interlacing or triplicate ponds, promote the transfer of nutrients to the panicle, and enhance the large panicles to increase yield.
V. Prevention and Control of Diseases and Insect Pests (1) Common pest species and control of corn pests There are mainly corn borers, aphids, iron and iron beetles, and ground tigers.
Prevention and control measures: Underground pests can be applied to insecticide in the pond with 1-2% carbofuran per acre; 2000-3000 times of available corn locusts and 1500-2000 times of dichlorvos are sprayed on the damaged parts to prevent and control; Aphids can be oxidized with dimethoate 1500-2000 times, Kang Fu Wei 2000-3000 times water spray control.
(b) Common disease types and prevention and control of corn diseases mainly include smut, leaf spot and so on.
Head smut can be treated with triadimefon and benzoyl pentaoxide seed dressing for seed treatment. Maize size spot disease is firstly selected for disease resistance, reasonable fertilization, reasonable close planting, enhanced ventilation and light transmission, etc. It can also be controlled with 5% Jinggangmycin 1000 times spray.
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