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二、玉米秸秆还田中应对措施1.保证秸秆粉碎质量。首先趁青作业,粉碎秸秆,数量适宜,尽早耕翻。玉米摘穗后要趁青还田,此时玉米秸秆较脆,秸秆含糖量高、水分大,容易被粉碎,还可减少秸秆内糖分损失,易于腐烂分解,增加土壤养分。同时要注意提高粉碎质量,建议选用适宜的秸秆还田机,玉米秸秆粉碎长度掌握在3～5厘米为宜,以免秸秆过长土压不实,影响作物出苗和生长。选用大型秸秆粉碎机,作业时要求拖拉
Second, the response of corn straw to the field 1. To ensure the quality of straw crushed. First, take advantage of green jobs, smash straw, the amount of appropriate, as soon as possible tillage. After picking the ears of corn to take advantage of the greenfield, corn stalks at this time more brittle, straw sugar content, water, easy to be crushed, but also reduce the loss of sugar within the straw, decompose easily decomposed and increase soil nutrients. At the same time pay attention to improving the quality of crushed, it is recommended to use appropriate straw stubble machine, corn stalks length of 3 to 5 cm is appropriate to avoid straw stubborn soil pressure, affecting crop emergence and growth. Selection of large straw grinder, the operation required drag