保护性耕作对旱作区冬小麦影响的试验研究

The Study and Analyzing of the Affection to the Winter Wheat by Conservation Agricultural Technology in the Dry Land Farming Area

根据对比试验情况,研究分析了在保护性耕作和传统耕作不同生产条件下,冬小麦种植后土壤水分变化、病虫草害防治、抵御自然灾、生长发育、生产成本和种植效益等情况。在小麦玉米一年两作区,总结出促进旱作区冬小麦生长发育,提高冬小麦种植效益的关键因素是秸秆覆盖和苗带旋耕播种。试验证明,施实保护性耕作对冬小麦产量和生产效益的提高,具有极大的促进作用。

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 dry land 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 dry land farming area.