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贾寨乡农技站,总结历年棉苗中耕技术,改革“前扎后踩”老的中耕办法,经试行“前锄后趋”的办法,获得成效。棉苗出土后,正值气温上升缓慢,加上土地表层板结,地温不足,土壤透气性差,缺氧,棉苗经常发生黑根和小老苗,影响棉花产量。老的中耕办法“前扎后踩”,起不到松土作用,土壤毛细管极易接通,一不能松土保墒;二不能提高地温;三盐
Jia Zhaoxiang agricultural station, summed up the history of cotton seedling cultivation techniques, reform, “step on the former step after the old cultivation practices, the pilot” before the hoe after the trend “approach to be effective. After the emergence of cotton seedlings, positive temperature rise slowly, coupled with land surface knot, lack of ground temperature, poor soil permeability, hypoxia, cotton seedlings often occur black roots and small seedlings, affecting cotton production. The old cultivation method ”before step after the step on the foot", can not play the role of loose soil, soil capillary easily accessible, one can not soil moisture; two can not increase the ground temperature; three salt