nutrients and their structure 营养盐及其结构
The analysis of inorganic nutrients structure indicated silicon limited the phyoplankton growth in spring and summer.
氮磷硅无机营养盐结构分析表明，烟台四十里湾春夏季硅限制了硅藻的生长；
A mixture of decaying organic matter, as from leaves and manure, used to improve soil structure and provide nutrients.
堆肥腐烂有机体的混合物，如树叶或粪便，用来改善土壤结构并增加土壤养分。
Nutrients release rate and release duration were used to assess the effect of coated materials and its structure on the release properties of controlled release fertilizers.
以养分释放速率和释放期为主要指标评价了膜材料及其构成对调节控释肥养分释放特性的影响。
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