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水分和养分是干旱地区农业生产中两大重要因子，与作物生长发育关系十分密切。有关这方面的研究已有相当长的历史。１９１１年Ｍｏｎｔｇｏｍｅｒｙ等人在Ｍａｂｒａｋａ就开始研究土壤肥力对玉米水分需要的影响。他们发现高肥土壤单位用水生产作物产量较高，而且增施有机肥有?
Moisture and nutrients are two important factors in agricultural production in arid areas, which are closely related to crop growth and development. There is a long history of research in this area. In 1911 Montgomery and others began to study the effect of soil fertility on the moisture requirement of maize at Mabraka. They found that high-yielding soil units produced more water with higher yields of organic crops and increased organic fertilizers.