Analysis on spatial variability of soil nutrition of kiwifruit orchards: Taking Zhouzhi County of Shaanxi Province as a case
The method of GIS and statistical analysis are combined to analyze the spatial variability of the organic matter,nitrogen,phosphorus and available potassium based on Zhouzhi County kiwifruit orchards.The abundance and the law of the spatial distribution of the four kinds of soil nutrients are analyzed.The results shows:① The coefficient of variation of soil nutrients belongs to medium variability and they are all less than 50％,and P ＞ K ＞ NH4 +-N ＞ OM;② The four kinds of soil nutrients all have medium spatial correlation,and P ＞ OM ＞ NH4+-N ＞ K;③ Through four kinds of soil nutrient spatial distribution analysis,the abundance and deficiency level of P is " Medium-High",the abundance and deficiency level of the other three kinds are "medium-low",even "extremely low" levels,fertilization efforts need to be strengthened.
NETL
NSTL
万方数据
维普
