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苗床酸化,不仅对土壤氮,磷,钾的有效性有着重要的作用,而且对其他元素也有极其良好的效果,这方面的研究,虽然不少国家均有报导,但在培育水稻壮秧上,却很少有人在实践中应用,指导水稻生产。因此,缺乏酸化苗床重要意义的理解,阻碍了这一重要措施的应用与推广。当土壤 PH 值小于5.5时,土壤溶液中十分缺乏钙和镁,不能满足水稻的需要,即长期处于酸性环境中是如此,苗床酸化,在短时间内不会出现此种情况,当土壤 PH
Seedbed acidification, not only has an important effect on the availability of soil nitrogen, phosphorus and potassium, but also has extremely good effects on other elements. Although studies in this area have been reported in many countries, on the cultivation of rice seedlings, However, few people use it in practice to guide rice production. Therefore, the lack of understanding of the importance of acidified seedbed hinders the application and promotion of this important measure. When the soil PH value is less than 5.5, the soil solution is very deficient in calcium and magnesium, can not meet the needs of rice, that is, long-term in an acidic environment is so, seedbed acidification in a short period of time does not occur when the soil PH