Effects of soil tillage and returning straw to soil on wheat growth status and yield;

Effects of wheat straw returning and soil tillage on CH_4 and N_2O emissions in paddy season

Effect of the soil tillage practies of summer fallow period of light loamy soil on wheat yield and water use efficiency

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.

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

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

Relationship between composition of K-bearing minerals and potassium status of cultivated soils in Jilin Province;

Multi-scale spatial structure of heavy metals in Beijing cultivated soils

The results are as follows: the texture of the palaeocultivated soil is medium-loam;the skeleton in the palaeocultivated soil have good smooth surface and mostly consist of quartzes,feldspars etc.