河北省山区土壤养分与玉米产量的相关性研究

Soil Nutrient and Corn Output in Hebei Province Mountainous Relevance Study

在时间和空间上对河北省山区的土壤养分及玉米的产量进行了定量分析和相关性研究。2007年3月在河北省37个山区县进行土壤和玉米采样,并在室内化验,运用统计分析、地统计分析、克立格插值法、时序分析法方法对数据进行统计分析,得出河北省山区土壤中全钾含量大大提高,其次有机质含量也有较大程度提高。目前,土壤中全钾含量地区间差异较大,冀西北土石山区和太行山土石山区土壤养分提高幅度较大,坝上高原草原区基础最好;玉米籽养分含量空间差异不大,冀西北玉米籽养分含量略优于其它区域;河北省山区玉米产量整体大大提高,其中太行山土石山区玉米产量提高最快;土壤中全磷和速效钾的含量是影响玉米的产量主要因素,应加强钾肥中有效钾肥的使用。

In the time and space on the mountain in Hebei Province of soil nutrients and yield of maize carried out a quantitative analysis and related research. In March 2007 in Hebei Province 37 mountain counties of soil and maize sam-ples,and in the indoor laboratory,using statistical analysis,to statistical analysis,Kriging interpolation method,time series analysis method of statistical analysis of data obtained in Hebei Province mountain soil total potassium content in greatly increased,followed by the organic matter content had a greater degree of increase; the current total potassium content in soil,large inter-regional differences in each area,northwestern Hebei Taihang mountainous area and the mountainous area of soil nutrients increased by a big margin,dam on the basis of the best high altitude grassland; room for differences in nutrient content of maize seed,little seed nutrient content of maize in northwestern Hebei Province slightly better than other regions; Hebei Province mountain corn production as a whole has greatly improved Taihang mountainous area in which the fastest increase in production of corn; soil total phosphorus and potassium content was the main factor affecting the production of corn,should be strengthened to effectively potash potash use.