Systematic Research on Soil Nutrient Status of Fangqiang Farm in Yancheng of Jiangsu Province
The soil nutrient of Fangqiang Farm in Yangcheng, Jiangsu was studied through adopting the systematic research method. The results showed that P and K were rich, alkaline hydrolytic nitrogen, microelements Mn and Zn were deficient here, while Fe and Cu were rich. Nutrient adsorption experiment showed that the tested soil had strong adsorption to K, Zn, Mn and Cu, while weak adsorption to P. Pot culture experiment showed that the major limiting factors of soil nutrient were Mn and Zn in rice high - yielding production, followed by Cu and N.
Soil nutrientLimiting factorsSystematic research method