The effect of different nitrogen fertilizers on dynamic transformation of phosphorus fertilizer in paddy soil under flooding condition was studied in indoor incubation experiments.
利用室内土培试验研究了淹水条件下不同氮肥对水稻土（黄泥土）中磷肥转化的动态影响。
The researches showed that pretest water content in soil specimen and growth condition of crack had an important effect on disintegration of expansive soil.
研究表明：试前含水量和裂隙发育状况对膨胀土在静水中的崩解有着重要影响；
Physical process of the effect of Locust artificial forest on the rainfall and the rules of water and soil losses under storm condition were analysed quantitatively and qualitatively.
本文定量及定性地分析了刺槐人工林影响降雨的物理过程以及暴雨条件下的水土流失规律。
应用推荐