Four measures to increase corn production

If corn is poorly managed during the growth process, premature aging, empty stalks, lack of grain, lodging, etc. are prone to occur, which will seriously affect the quality and yield of corn. How to prevent this phenomenon? According to the experience of some old farmers, four technical measures should be taken in the field management, focusing on the “four preventions”: First, to prevent premature aging due to the tall maize plants, it will inevitably consume large amounts of nutrients and moisture during growth. , And too much water in the fertility, will cause soil hypoxia, then weakened root activity, water absorption difficulties, but the leaf transpiration is not reduced, especially on sunny days, the leaves consume more water, easily lead to physiological metabolism, the emergence of leaf curl, growth Slowly, if there is a lack of fertilizer at this time, the plants will be short and even withered. Control methods: If there is a rainy area, drainage should be done to prevent stains. If there is a trend of premature aging or yellow leaves, the application of fine fertilizer or spraying of phosphorus fertilizer should be applied at the early stage of flowering to prolong the green leaves and increase the quality of the fruit. Potash or potassium sulfate fertilizer can also prevent premature aging. Second, there is insufficient supply of air-defense culms and malnutrition, which can not meet the requirements for nutrients during ear differentiation, or the density is too large and the photosynthetic intensity is weak, while nitrogen fertilizer, low phosphorus, and potassium deficiency all cause empty stalks. Control methods: When planting, attention should be paid to the density, which requires Daehang corn not to be sealed to ensure ventilation and ventilation of the plant. It is necessary to supply nutrients and moisture in a timely manner in order to facilitate ear differentiation and development. At the same time, attention should be paid to nitrogen, phosphorus and potassium during fertilization. The three elements are properly combined. The soil with poor soil fertility should be applied with more organic fertilizer. In areas with high soil fertility, more phosphorus fertilizer should be applied during the seedling stage in order to grow long roots and strong stalks. During head differentiation, fertilization should be carried out. If too dense or weak, please pull it out in time. Third, there is a lack of phosphorus in the lack of grain and bald soil. If the sugar metabolism and protein synthesis and cell division are blocked during the flowering phase of the booting, the top of the panicle will continue to shrink and the elongation of the filaments will slow down, which will affect the natural pollination and cause baldness. Even empty ears. Soils such as potassium deficiency, transport of soluble carbohydrates to the grain are hindered, and grain-starch starch is also necessarily less. Or early infestation of insects, wind damage caused by the lack of nutrient delivery, or flowering during the rain, pollen fertilization obstruction, etc. will cause baldness, pods or empty grains. Control methods: To prevent premature plant failure, the key is to prevent pests and diseases, apply more phosphate fertilizer, potash fertilizer, such as drought in case of spinning, watering and irrigation in time, the best flowering artificial pollination. The fourth is that the density of lodging and lodging is too large. When the stems are elongated, the management of the fertilizer and water is improper, and it is easy to cause lodging and affect the yield. Control methods: When planting, we need to deepen the cultivation layer, increase the base fertilizer, properly cultivate the soil when cultivating, and make the corn stably. Fertilizer should pay attention to the combination of nitrogen, phosphorus, and potassium, and pay attention to the plant density to ensure that the growing leaves have enough sunlight to make the plants robust and thicken the seedlings to increase their lodging resistance.

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