Study on the oversowing in desert grassland in Tsaidam Basin by hole seeding;

In view of economic yield and the ratio of output/input,comparision of eight cultivating forms for winter wheat show that the film mulching and bunch seeding cultivation and the film mulching and double sides strip seeding are suitable for Weibei rainfed areas.

Plastic mulching and bunch planting were applied to the breeding of Zizyphus spinosus Hu.

The study of sowing thickness and fertilizer application of hole sowing spring wheat with plastic films covering had been engaged adopting split-plot experiment in the areas of plain and flat field at mountain in Linxia Prefecture.

Study on Multi-function Precision Planting Sinus Wheel for Upland Crop;

It had been done the tests of the influence that the housing seed quantity of planting sinus wheel, the speed of revolution of the wheel, the forming sinus and casting seed container or the geometric installation dimension of the wheel fender was to the sowing quality.