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在人类栽培作物的长期实践和许多研究中,关于营养液中营养元素的比例对作物产量的影响,大概由于研究方法不同,故结论不尽相同。为此,作者采用美国育成的矮秆春麦品种维尔得·西得日1877,置于水培营养装置进行了二年试验。用经常补充营养液的方法来保持营养液的充分供应,以使每日作物吸收的营养元素在营养液中保持一定比例。
In the long-term practice of human cultivation of crops and in many studies, the effect of the ratio of nutrients in nutrient solution on crop yields is probably due to different research methods, so the conclusions are not the same. To this end, the author uses the United States bred spring wheat varieties Wilde West De 1877, placed in hydroponic device for two years. Nutrient solution is often used to supplement the nutrient supply to maintain a sufficient supply of nutrients so that daily nutrients absorbed in the nutrient solution to maintain a certain ratio.