Reducing N and P rates also decreased N and P accumulation and nitrate content in the soil and decreased the risk of N and P running off.
减少氮磷化肥用量可以大幅度降低氮磷在土壤中的累积和硝酸盐的含量，减少氮磷的流失风险。
There was a significantly positive correlation between N2O flux and soil ammonium nitrogen content(P<0.01).
N2O通量与土壤铵态氮含量呈极显著正相关（P<0.01）；
The results of grey relational analysis revealed that the content of soil nutrients, in particular C and N, had a major effect on avail-P.
灰色分析的结果表明，土壤速效磷的形成主要受到土壤养分，尤其是碳、氮养分的影响。
Soil water content had a substantial impact on P uptake and P use efficiency in all 4 cultivars.
土壤水分对4个品种的磷吸收效率和利用效率均有显著影响。
Leaf P. K content was increased with the successively appling of soil-potassium.
叶柄中p、K含量随施肥量的增加而升高。
And there is a significant correlation between the mass content of available P and soil depth (P<0.05) and the mass percentage of available P is verified regularly with the increasing of soil depth.
通过方差分析和回归性分析表明，不同林地之间有机碳、速效磷和速效钾质量分数差异性显著（P<0.05）且与土层厚度有明显相关性，并随土层深度的增加呈规律性变化。
And there is a significant correlation between the mass content of available P and soil depth (P<0.05) and the mass percentage of available P is verified regularly with the increasing of soil depth.
通过方差分析和回归性分析表明，不同林地之间有机碳、速效磷和速效钾质量分数差异性显著（P<0.05）且与土层厚度有明显相关性，并随土层深度的增加呈规律性变化。
应用推荐