一、助苗出土法。播后遇雨,易使地表板结,地温降低,使棉花出苗不齐,缺苗断垄。这类棉田雨后要及时划锄,破除板结,助苗出土。墒情不足的棉田,可顺垄镇压接墒,或垄旁开沟添水加墒、浇蒙头水。 二、催芽补种法。在出苗7天内,如发现种子霉烂、落干等大量缺苗时,可将种子放在40—50℃的温水中浸泡2—3小时,取出后用清水淋洗,然后晾 First, help seedlings unearthed method. Encounter rain after rain, easy to make the surface board knot, ground temperature to reduce, so that cotton seedling missing, missing seedlings broken ridge. Such cotton fields after the rain to be hoeing planted, get rid of hardened, help seedlings unearthed. Moisture in cotton fields, furrow ridge can be closed down furrows, or ditch next to ditch add water and moisture, Mengtou water. Second, germination replanting method. 7 days in the emergence, such as found rotten seeds, such as a large number of missing seedlings, the seeds can be soaked in warm water at 40-50 ℃ 2-3 hours, rinsed with water after removal, and then air