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我社过去大麦“生理发黄”现象十分严重,发生面积达500余亩,占大麦总面积的15%以上,严重的生产队在50%以上。大麦“生理发黄”后,轻者植株生长不良,产量不高,一般减产2—3成以上,重则苗期陆续枯死,颗粒无收。从1972年开始,我们对此进行了调查研究和防治试验,初步找出“病根”是土壤酸害和有机质偏少,土壤理化性质变劣所致。因此,我们就“对症下药”,大面积地采取了防治措施,大麦“生理发黄”面积逐渐减少,危害也逐年减轻。
In the past, the phenomenon of “physiological yellowing” of barley in the past was very serious with an area of more than 500 mu, accounting for more than 15% of the total barley area and a serious production team of over 50%. Barley “Physiological yellowing”, light plants poor growth, yield is not high, the general cut 2-3 more than the weight of seedlings died one after another, crop failure. Since 1972, we have carried out research and prevention and control tests on this matter, and initially identified the root cause of the disease as a result of less soil acidity and organic matter and worsened soil physical and chemical properties. Therefore, on the basis of “prescribing the right remedy,” prevention and control measures have been adopted on a large scale. The area of “physiological yellowing” of barley has been gradually reduced, and the harm has also been lessening year by year.