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我县属半干旱地区,历年平均降雨量497.3毫米,降雨量多集中在7、8、9三个月,春天制种玉米下种的4、5两个月,正值旱季,两个月历年平均降雨量仅40毫米左右。干旱,一直是困扰我县制种玉米下种的主要因素。近年来,我们应用五个抗旱新技术,年年夺得一次下种保全苗。1 秸秆、地膜二元覆盖玉米收获以后,一边割秆,一边硬茬顺垅覆盖,盖67厘米,空67厘米。盖的时候,玉米秆排放的顺序是:下一排根压住上一排梢。秸秆上还要适量压土,防止风刮乱。第二年春天,在空档处翻耕、
My county is a semi-arid area with an average annual rainfall of 497.3 mm over the years. The rainfall is mostly concentrated in the 7th, 8th, and 9th months. In spring and spring, The average rainfall is only about 40 millimeters. Drought has always been a major factor disturbing the cultivation of corn in our county. In recent years, we have applied five new drought-resistant technologies and won the next seedlings of seedlings annually. 1 straws, mulching dual corn cover After harvesting, while cutting stalks, while the stubble Shun Qian covered, cover 67 cm, 67 cm empty. Cover when corn stalks discharge order is: the next row of roots to suppress the last row of shoots. Appropriate amount of straw on the pressure to prevent wind mess. The next spring, plowing in neutral space,