基本信息来源于合作网站,原文需代理用户跳转至来源网站获取       
摘要:
In this paper,the index system of ecological balanced fertilization of maize was discussed by data mining method based on this column.Three aspects of provincial average,typical province and all samples were studied,and the results and conclusions were as follows:①climate condition was one of the main factors of soil formation,which was also an important basis for the division of maize producing areas.The proportion of available nutrients was different in different maize producing areas.This was the result of long-term climate and man-made action,which constituted the basic fertility pattern of soil available nutrient for maize in China.②One of the basic fertility indexes of maize soil in China was the proportion of available nutrients,which was the theoretical basis for adjusting the proportion of N,P and K fertilizers.③Although the total amount and proportion of available nutrients in different maize producing areas were different,they can be adjusted to the optimum absorption ratio of maize by fertilizing measures,so as to achieve the goal of ecological balanced fertilization such as high production and good quality.④The basic soil nutrient index of more than 9000 kg/hm 2 of maize production was less than 8 of hydrolysable N/available P,and the fertilization index was that optimum N fertilization amount was more than 0.8 times of optimum P fertilization amount.
内容分析
关键词云
关键词热度
相关文献总数  
(/次)
(/年)
文献信息
篇名 Studies on the Provincial-level Index System of Ecological Balanced Fertilization for Maize in China
来源期刊 气象与环境研究:英文版 学科 经济
关键词 Optimum yield Optimum fertilization amount Nutrient conversion rate Fertilizer utilization ratio Relative abundance-deficiency value of soil nutrient
年,卷(期) 2020,(5) 所属期刊栏目
研究方向 页码范围 118-124
页数 7页 分类号 F42
字数 语种
DOI
五维指标
传播情况
(/次)
(/年)
引文网络
引文网络
二级参考文献  (0)
共引文献  (0)
参考文献  (0)
节点文献
引证文献  (0)
同被引文献  (0)
二级引证文献  (0)
2020(0)
  • 参考文献(0)
  • 二级参考文献(0)
  • 引证文献(0)
  • 二级引证文献(0)
研究主题发展历程
节点文献
Optimum
yield
Optimum
fertilization
amount
Nutrient
conversion
rate
Fertilizer
utilization
ratio
Relative
abundance-deficiency
value
of
soil
nutrient
研究起点
研究来源
研究分支
研究去脉
引文网络交叉学科
相关学者/机构
期刊影响力
气象与环境研究:英文版
双月刊
2152-3940
出版文献量(篇)
1887
总下载数(次)
1
论文1v1指导