I. Effect of drought on maize 1. Drought in seedling stage, slow growth of plants, yellow leaves, small stalks, even if the late rain reconciliation can not form a thick stalk bred large ear. 2. The drought at the bell mouth stage, the ear development is slow, half cuttings are formed, and the upper part of the ear is degraded. When it is severe, the development of the ear is blocked and abortion occurs, and empty ear plants are formed. In the early tassel drawing, the stamens were pulled out and delayed, resulting in poor pollination and the formation of flower seeds. 3. In the pollination season, if it encounters hot and dry weather, especially dry weather above 35 degrees, the vitality of pollen will be reduced, pollination will be affected, and dilute grain or empty rods will be formed. The appearance of filaments continuously stretches out the leaves to form long beards. 4. When the corn in the grain filling stage encounters drought, the grain is not full, the ear sticks are soft, and some cobs are arranged in a large to small ladder. Plants that have been in arid or semi-arid conditions are dwarfed, grow slowly, or stop growing. The leaves curl, yellow, and even die. If the drought conditions are relieved, the plants will resume their growth and become greedy. Many small invalid spikes will be formed in the upper and lower parts of the panicle, and it is easy to attract the corn borer to harm the stems and tender ears. Second, preventive measures 1. Before sowing, deepen the soil, increase organic fertilizer, and increase soil water storage capacity. 2, combined with grass, fertilizer, do a good job cultivating soil, water conservation, security. 3. Observe field soil moisture frequently, and determine if irrigation is needed based on weather forecast and corn growth and water requirement rules. 4. Artificially-assisted pollination is implemented to increase the seed-setting rate and thus increase the yield. Http:// Digital 60m short range laser rangefinder is a laser measurement device which is supposed to replace tape measure, ruler, and other traditional length meauring tool. Laser ruler as its name, it is a electronic ruler which user laser to measure distance. 60M Laser Measure,60M Laser Distance Measure,Laser Distance Measure Oem,60M Digitial Laser Distance Measure Chengdu JRT Meter Technology Co., Ltd , https://www.jrt-measure.com
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The Influence of Maize Drought and Preventive Measures