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贵阳地区主要土壤微量元素状况的研究魏成熙，牛爱珍，周焱（贵州农学院）植物正常生长过程中，对微量元素的需要量很少，但它们的作用很重要，土壤中任何一种微量元素的缺乏或过多，都会导致作物生长发育和产量、品质的下降，同时在一定程度上也影响到人类和动物的营养和...
Study on the Status of Trace Elements in Main Soils in Guiyang Region WEI Cheng-Xi, NIU Ai-Zhen, ZHOU Yan (Guizhou Agricultural College) During the normal growth of plants, trace elements are rarely required, but their effects are very important. Lack or excess will lead to crop growth and decline, yield, quality, at the same time to a certain extent also affect the human and animal nutrition and ...