The Study and Analyzing of the Affection to the Winter Wheat by Conservation Agriculture Technology in the Dryland Farming Area

摘要

The conservation agriculture has changed the winter wheat planting method and custom in the dryland farming area. Basing on the comparison experiments, the thesis studies and analyzes the situations of the soil moisture, diseases & insects and weeds protection, the natural disaster resistance, crops growth and development, production input and planting benefit for the winter wheat by means of the dryland farming and conventional technologies. The conclusion is that the key elements to promote the winter wheat growth & development and increase the planting benefit are the technologies of crop residues covering and sewing after rotation plow in the planting belt in the area that the wheat and maize are two harvests in one year in the dryland farming area.