摘要
在石灰性褐土上,根据不同肥力状况,采集0～20cm具有代表性的混合土样,分别采用常规分析与速测法对各土样中NO3--N、NH4+-N、速效磷和速效钾进行测定,以探索速测与常规分析法测定值间的反演模型。通过回归分析对数据的处理、统计分析,表明两种方法测定值间相关性显著,并建立了它们之间的反演模型。
In this paper,mixed samples with different status of soil fertility(0～20cm) were obtained in the calcareous cinnamon soil.The soil nutrient values about NO3--N and NH+-N and available phosphorus(P) and potassium(K) in the soil samples were measured with the conventional and the quick determination methods respectively in order to find out the inversion model of soil nutrient between the measurement values.By means of regression analysis,the result showed that there existed great correlation between them.As ...
出处
《山西农业科学》
2007年第12期55-56,共2页
Journal of Shanxi Agricultural Sciences
关键词
土壤养分
常规分析
速测
反演模型
Soil nutrient
Routine analysis
Quick determination
Inversion model
