Recently, aiming at the reasons causing water and soil losses and fertility decline on the red soil drought farmland in Yunnan Province, the research and analysis have been carried out.

Heavy metals contamination for cultivated soils,vegetables and rice in the vicinity of non-ferrous metals industry;

Study on potassium release rate and the relation of the rate to potassium availability in Cultivated soils;

Spatial autocorrelation analysis of heavy metals in cultivated soils in Beijing

Effects of tillage and straw returning on soil fertility and grain yield in a wheat-rice double cropping system;

According to the present condition of soil cultivation in Huachuan and 搕hree, three?rotation cultivation system base on deep-ripping, combine with the equipment of agriculture improving quality and increasing effectiveness, forward the necessity and proposals reform the old cultivation mode to protection cultivation.