Results from the 3 years of field experiment indicate, that the mulching measure with plastic film on the ridge and straw in the ditch in the dry terraced land in North Shaanxi Loess Plateau hilly and gully region could improve the soil water, air and temperature condition. Further more, it could improve the utilization ratio of rainfall decreasing the unnecessary evaporation from uncovered soil surface, optimizing the growing course of crop, slowing down the great change of soil temperature, improving the quantity of soil organic matter. Then it could bring about a good soil environment condition for increasing foxtail millet yield, which was 65.8% higher than that of the control, and 11.8% higher than that of plastic film mulching. The measure of straw film mulching is an effective way to increasing the utilization ratio of rainfall on dry terrace land in the hilly and gully region of the Northern Loess Plateau.
Acta Agriculturae Boreali-occidentalis Sinica
国家“九五”重点科技攻关专题“中北部丘陵沟壑区 (米脂 )生物资源高效开发与农牧综合发展研究 (项目编号 :96-0 0 4-0 5 -0 2 )”部分内容
Straw film mluching
Dry hilly gully region