土壤养分的平衡分析结果表明，成都平原耕地土壤管理宜采取“稳氮、控磷、增钾”的施肥方法和严格控制各种点源和非点源污染物进入土壤。
The balance analysis results of soil nutrient indicated that the fertilization methods of cropland management in Chengdu Plain were firming nitrogen, controlling phosphorus and increasing potassium.
除了上述“典型”症状外，钾和其它养分(尤其是氮和钙)的不平衡还可引起其它症状。
Apart from the above "typical" symptoms, other symptoms may occur as a result of imbalance of potassium with other nutrients, nitrogen and calcium in particular.
分别从氮肥效应试验、磷肥效应试验、钾肥效应试验和氮磷钾养分平衡进行了研究。
And study the nitrogenous fertilizer response trial, phosphorous fertilizer response trial, potassium fertilizer response trial and nitrogen, phosphorous, potassium nutrition balance separately.
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