棉田灌水过多过少,都会显著降低产量。因此,适时适量灌溉,是提高棉花单位面积产量的重要问题。 一般农民都知道,作物发生萎蔫时就立即灌水。有经验的农民能较为敏锐地根据作物某些外形变化,决定灌水。但是,研究证明,当植物出现缺水象征时,内部生理上已遭受不同程度的损害。 Too little or too little water in cotton fields will significantly reduce production. Therefore, the proper amount of irrigation, is an important issue to improve cotton yield per unit area. The average farmer knows that irrigation occurs immediately when the crops have wilted. Experienced farmers can be more sensitive to changes in the shape of some crops, decided to irrigation. However, studies have shown that when plants appear to be dehydrated, their physiology has been compromised to varying degrees.