【作者】 李斐；

【导师】 高炳德； 索全义；

【作者基本信息】 内蒙古农业大学 ， 土壤学， 2002， 硕士

【摘要】 以蒙麦36号等六个品种为试验材料，系统研究了N、P、K、S、Ca、Mg、Fe、Mn、Cu、Zn十种养分在春小麦不同生育时期体内的浓度变化；不同生育时期养分的吸收累积及分布规律；百公斤籽粒吸收量、消耗系数、生产效率等。建立了6个春小麦品种十种养分的吸收动态模型，并利用模型算出了十种养分的最大吸收量、最快吸收速率及其出现时间。不同春小麦品种之间在养分吸收、分布、运转方面，存在一定的差异；不同养分之间在体内浓度、累积量、最大吸收量、最大吸收速率及出现时间等方面，存在显著差异。更多还原

【Abstract】 With mengmai no.36 and other five varieties, we have studied systematically the changing law of concentration, absorption, accumulation and distribution of N. P. K. S. Ca. Mg. Fe. Mn. Cu. Zn at different growth periods in spring wheat. The consumption coefficients and productivity of N. P. K. S. Ca. Mg. Fe. Mn. Cu. Zn and the amount of absorption to produce 100 kg grain were made clear. The absorption dynamic model of ten nutrition of six CV. spring wheat were established. Through the model, we calculated the greatest amount of ten nutrition uptake and the fastest absorption rate and their appeared time. The absorption, distribution and dislocation of nutrition of different spring wheat are different. The concentration, amount of accumulation, the greatest amount of uptake and the fastest absorption rate and their appeared time are significantly different among nutrition.更多还原