本省西部半干旱地区旱作玉米,常因春旱造成缺苗断垄和生育期缺水,致使玉米生长发育不良,产量不高不稳。为提高旱作玉米产量,我们进行了留茬沟种玉米试验。经5年的试验示范结果表明:在风沙半干旱垄作区采取不耕翻,保留根茬,在原垄沟播种玉米,比原垅台种或耙茬起垅台种,平均提高产量31.3%。是当地旱作玉米抗旱增产的有效技术措施。 Dry maize in the western semi-arid area of ​​the province often causes lack of seedlings to break the ridge and water shortage during the growing season due to the spring drought, resulting in poor maize growth and poor yield and instability. To improve the yield of dry maize, we conducted a stubble ditch maize experiment. After five years of pilot demonstration, the results showed that in the semi-arid area of ​​sand blown sandy areas, tillage was not used, root stubble was retained, corn was sown in the original furrow, and the average yield was 31.3% higher than that of the original taiwan or rake. Is the local drought-resistant maize yield and effective technical measures.