... 肥料养分 fertilizer nutrient 主要养分 macro-nutrient；primary nutrient 次要养分 secondary nutrient[element] ...
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... 单一肥料straightfertilizer 主要养分macro-nutrient;primarynutrient 次要养分secondarynutrient[element] ...
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The change trend of main nutrients were summarized which would offer basis forsoil fertility improvement and nutrients management. The results showed that the soil pHwas changed from high to low in the regions from north to south.
总结出了湖北省水稻土主要养分因素的区域性变化趋势，为区域性的土壤改良和养分管理提供依据。
参考来源 - 湖北省不同区域水稻土的养分状况调查与评价研究·2,447,543篇论文数据，部分数据来源于NoteExpress
试验结果表明，土壤缺钾是该试验的主要养分限制因子之一；
The potash deficiency in soil is proved the restricting factor in this experiment.
土壤转化酶活性与草地主要养分关系密切，它可作为土壤肥力指标。
There were closely relations between the activity of invertase and main soil nutrients, that can be the index of soil fertility.
为保护和合理利用藏羚羊品种资源，本论文对沙图仕特性及冷季可可西里牧草-土壤中主要养分含量进行了研究。
This article was composed of two experiments which were used to provide scientifical reference for protection and reasonable utilization of Tibetan antelope.
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