national fertilizers 中文意思是什麼
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These two methods have been listed in the national standard, “ the determination of total potas - sium content in organo - mineral compound fertilizers ”
這2種方法已被列入國家標準「有機無機復混肥料中總鉀含量的測定」 。 -
By an analysis of the statistical data of 2003 from the national agricultural technology center and the data of peasant household survey in 2000, the conditions are depicted of the spatial distribution and product mix of the consumption of nitrogenous fertilizers in china and the crop demand
通過對全國農技中心2003年統計數據和2000年農戶調查數據的分析，闡明了我國氮肥消費的空間分佈、品種結構和農作物需求狀況；並指出了農作物氮肥施用中存在傳統施肥習慣影響氮肥消費結構，氮肥施用面積不足、適量和超量各佔三分之一，施肥方式影響肥料利用率，氮肥價格的上漲也影響氮肥消費結構等問題。
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