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。
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.
玉米秸秆还田可以培肥地力，平衡土壤养分。
Corn straws as fertilizers may make the soil fertile and balance the nutrients.
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.
采用土壤养分状况系统研究法。在摸清土壤养分限制因子前提下，平衡施肥。
By using soil nutrient state system study method, balancing soil fertilization have been adopted after the soil nutrient limitation factors had been made clear.
对农作物、化肥和我国土壤营养特性作了简要描述，并对全国和几个典型地区的农田养分平衡作了估算。
The nutritive peculiarities of crops, fertilizer and soils are described. Meanwhile the nutrient balances of farmland in several typical areas of China are also estimated.
融合传统与现代技术，关注酒质量和生态环境。并采用生物平衡的方式保存土壤养分。
Blending of tradition and modernity, and in a quality concern of this wine and of the respect of the environment, some principles are applied: preservation of the biological balance of the soils.
融合传统与现代技术，关注酒质量和生态环境。并采用生物平衡的方式保存土壤养分。
Blending of tradition and modernity, and in a quality concern of this wine and of the respect of the environment, some principles are applied: preservation of the biological balance of the soils.
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