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烟株在生长季中耗尽主要肥料元素,发生缺少养料而造成产量和质量的下降。这可能由施肥种类和方式不当,过分降雨或灌水引起养分流失所致。过去对缺乏养料影响烟叶化学组份的研究作的很少,而且不全面。本研究采用温室中营养液栽法:在完全营养液内培育至约40厘米高的希克斯润叶烤烟烟苗,移入缺少营养的液栽盆中,墙栽三至四期使各种处理的症状能以发展,直至盛
Tobacco plants run out of major fertilizer elements during the growing season, resulting in a loss of yield and quality due to lack of nutrients. This may be due to inappropriate types and ways of applying fertilizers, resulting in loss of nutrients due to excessive rainfall or irrigation. In the past, research on the chemical composition of tobacco leaves that lacked nutrients had been done with little and no comprehensiveness. In this study, nutrient hydroponics in greenhouse was used to cultivate the Hicks moist leaf tobacco seedlings in a complete nutrient solution to a nutrient-poor hydroponic pot at a height of about 40 cm. The symptoms can develop until Sheng