soil nutrient balance

Based on the balance equation of soil nutrient and the law of the minimum limiting factor, some general principles are proposed for making fertilizer application tactics.

由土壤养分平衡方程和最小限制因子定律，讨论了因时因地制定施肥策略的必要性。

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.

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。

Eucalyptus fertilization was main approach for returning nutrient from exterior setting in order to ensure a balance nutrient system in forest soil.

桉树施肥是维护林地养分平衡外部养分补偿的主要途径。