川芎主产区土壤养分空间变异及丰缺评价

Modern Chinese Medicine(2021)

Cited 0|Views26
No score
Abstract
目的:评价川芎主产区土壤养分的空间变异与丰缺状况.方法:测定成都平原33个乡镇173个土壤样品pH,凯氏定氮法测定全氮,钼锑抗比色法测定有效磷,火焰光度法测定速效钾,电感耦合等离子体发射光谱法测定有效铜、有效锌、有效锰、有效铁,分光光度法测定色度,采用地质统计学方法分析土壤养分的基本特征、空间分布规律和相关性.结果:川芎主产区有效锰和有效铁含量分布均呈现中等程度(25%
More
AI Read Science
Must-Reading Tree
Example
Generate MRT to find the research sequence of this paper
Chat Paper
Summary is being generated by the instructions you defined