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在作物的生长发育中,若因缺少某些元素导致缺素症,就叫生理性病害。生理性病害应予补充营养元素防治,而非用农药。近几年,随着玉米品种的不断更新,产量增幅很大,但由于地力状况和施肥不合理,玉米出现了很多生理性病害,正确识别、了解这些生理性病害,才能做到对症而治,保品质、保产量。
In crop growth and development, if due to the lack of certain elements lead to deficiency, called physiological disease. Physiological diseases should be supplemented with nutritional elements of prevention and control, rather than pesticides. In recent years, with the continuous updating of corn varieties, the output increased greatly, but because of the geotechnical conditions and irrational fertilization, maize appeared a lot of physiological diseases, correctly identify and understand these physiological diseases in order to achieve symptomatic treatment, Paul quality, Paul yield.