Corn stalks are commonly referred to as "male corn," meaning that corn does not produce spikes or has ears but is not strong. The main reasons for this phenomenon are: First, the influence of internal factors of the seed, such as the decline of physiological function, metabolic disorder, obstacles to the body's delivery system. Second, improper cultivation and management, such as planting too dense, inadequate supply of nutrients, drought or excessive rain during the jointing stage of the jointing. The third is to be harmed by pests and diseases. Therefore, the following measures must be taken to prevent corn empty stalks: 1. Corn hybrids should be selected based on local conditions. If there are problems with the internal factors of maize seeds, they will not be able to prevent empty stalks after sowing. This will inevitably result in losses. Therefore, we must make sure that we have a good selection. At present, there are many good varieties of corn that are suitable for planting in various places. They should be selected by Liangzhong and selected by the reputable seed department. They should not be greedy for cheap, buy inferior species or even fake varieties. Second, adhere to a reasonable dense planting corn planting density, should be due to land, due to fat, due to species may not be too thin, nor too close. To ensure that corn plants have good ventilation and light conditions, to meet the three-leaf corn on the light requirements. It is best to use wide and narrow rows for planting. Third, effectively strengthen the management of maize during the growing period such as time seedlings, Dingmiao, retain the strong seedlings; do a good job of cultivator weeding; serious pest control; increase fertilization materials, especially in low soil fertility, should be reused base fertilizer, top dressing Should be light before and after, nitrogen, phosphorus, potassium, should also be appropriate application of micro-fertilizer, applied per acre of zinc sulfate 0.5-1 kg; reasonable irrigation, control of watering seedlings, timely irrigation and other appropriate amount of water after jointing. Fourth, the implementation of artificial auxiliary pollination before flowering, can be emasculated, long-blade leaves can be cut off the top 3-7 cm, so that the early filaments out, increase pollination opportunities. Fifth, topdressing spikelet differentiation fertilizer and panicle fertilizer time in the plant growth and development into the ear seat and heading 5-7 days before, to raise a good ear.
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