摘要
石灰性土壤由于碱性反应和富含钙、镁,对于P素和Zn、Mn等微量元素具有强烈地固定作用,常常发生这些元素供应不足的现象,如何通过人工调控,促进这些营养元素潜在部分的活化,便是一个十分重要的研究课题。通过研究表明,将灌溉水进行酸化处理,能够明显提高土壤中原有的P素和微量元素Mn的有效性,并且在酸化水的浓度适当时,还可显著提高小麦、大豆和棉花的产量。
In calcareous soil, alkaline reaction and rich Ca Mg have strong fixation role on P, and so short supply often occurs. It is important to use man made regulation and control to promote the activity of potential nutrient elements. This study indicates that acidified irrigation water can markedly increase the availability of P and Mu in soil, and if the concentration of acidified water is suitable, the yield of wheat, soybean and cotton may increase remarkably.
出处
《干旱地区农业研究》
CSCD
北大核心
1998年第4期9-14,共6页
Agricultural Research in the Arid Areas
基金
国家自然科学基金