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1)  effective nutrient concentration range
有效养分浓度区间
1.
The effective nutrient concentration range is defined as the range within which the derivative of tree growth (Y) with respect to nutrient uptake (X),dY/dX>0.
　林木有效养分浓度区间为林木生长量(Y)对林木养分吸收量(X)的导数大于零的养分浓度(C)区间。
2)  validity interval score
有效区间分
3)  Nutrient concentration
养分浓度
例句>>
4)  Effective concentration
有效浓度
1.
According to the analysis of typical BOF slags,the activities of FeO and CaO in the slags were obtained from the iso activity diagrams of (CaO+MgO+MnO) (SiO 2+ P 2O 5) FeO n system,whereby the effective concentrations of CaO and FeO in BOF slag were determined.
针对几种典型转炉渣的成分分析 ,由FeOn (CaO +MgO +MnO) (SiO2 +P2 O5)等活度图回归出氧化铁和氧化钙的活度 ,以确定其有效浓度 。
2.
Chosen the right dosage and fumigation method,maintained the effective concentration of PH 3,respiration,grow and reproduction of microorganism and pest were inhibited.
采用合理的剂量和熏蒸方法,保持粮堆内较长时间的PH3有效浓度,抑制了玉米的呼吸强度和微生物、害虫的生长繁殖,确保了玉米长期安全储藏,保持了较好的储粮品质。
3.
The results showed that the concentration of PH 3 can maintain above the effective concentration for a period of time,and no insects were found more than 12 months.
本文采用磷化铝间歇熏蒸法 ,使粮堆内部各处PH3浓度在一定的时间内保持在有效浓度之上 ,无虫期超过 12个月 ,有效地防治了锈赤扁谷盗。
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5)  effective extent of soil nutritent
养分有效化程度
6)  effective interval of sensitivity
灵敏度有效区间
补充资料：土壤有效性养分
分子式：
CAS号：

性质：土壤中易被植物吸收利用的养分。以被吸收利用的难易和快慢程度分为速效性或缓(迟)效性两类。 

说明：补充资料仅用于学习参考，请勿用于其它任何用途。
参考词条