1) effective extent of soil nutritent
养分有效化程度
2) available nutrients
有效养分
1.
The effects of phosphoric acid concentration, ammonia consumption, neutralization degree, SO_3 and phosphogypsum and other impurities in H_3PO_4on the available nutrients of AP are examined.
分析磷酸浓度、氨用量、中和度、磷酸中的SO3含量、磷石膏带入量、磷酸中的杂质对磷酸铵产品有效养分含量的影响;工艺操作、筛分设备对磷铵物理性状的影响。
2.
The output and the amount of nutrient uptake at the nutrient deficient plots are the basic parameters for forecasting the soil nutrient-supplying capacity and correcting the coefficients of available nutrients.
缺素区产量及其养分吸收量是计算土壤供肥量、土壤有效养分校正系数与相对产量等的基础参数。
3.
The rhizosphere and non-rhizosphere soil were sampled in the pure and mixed plantations of Juglans mandshurica and Larix gmelinii by peeling the adheing soil of the roots,and the characterstics of pH and the contents of the available nutrients were studied.
用剥落分离法采集胡桃楸(Juglansmandshurica)、落叶松(Larixgmelinii)纯林及其混交林根际与非根际土壤,并研究了pH及有效养分含量特性。
3) available nutrient
有效养分
1.
Correlation study on testing available nutrient in calcareous soil by using Mehlich 3 method
Mehlich 3法测定石灰性土壤有效养分的适用性研究
2.
Results showed that the contents of soil available nutrients tested by the 2 methods were different, due to different measuring conditions (characteristics and concentration of extracting solution, water to soil ratio, processing time, etc), but the contents of soil available nutrients tested by ASI method was significant positively correlated to those tested by routine method us.
结果表明,虽然由于提取剂本身的特性、浸提浓度、水土比和作用时间等测定条件不同,由两种方法得到的土壤有效养分含量数值也各不相同,但是ASI法对土壤有效养分的测定值与我国常规分析方法的测定值呈极显著正相关。
3.
Using classic statistics and geostatistics means,spatial variability characteristic of soil available nutrient and crop yield in field of scaling management farm and correlations between observing these items were studied.
运用经典统计和地统计学结合的研究方法,探讨了规模化经营农场田块内的作物产量及土壤有效养分含量等空间变异特征。
4) Effective nutrient
有效养分
1.
Analysis and comparison of effective nutrient of rice soil by the ASI and conventional methods
ASI法与常规方法对水稻耕层土壤有效养分分析比较
2.
Inorganic additives could cause effective nutrient of compound fertilizer to decrease in the course of processing and storing.
复混肥制作过程中无机添加剂的使用可以导致肥料中有效养分的减少,为了阐明和有效地解决这个问题,选用含有氮、磷、钾3种营养元素的肥料和常用的无机添加剂作为原料,模拟工厂化制作和贮存过程,以分析和探讨无机添加剂对肥料养分有效性的影响。
5) 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),dY/dX>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。
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。
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