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一、播种前浇早水。温度和水分是影响棉花出全苗的两个主要因素。地膜覆盖后温度不再是限制因子,土壤表层水分就成为棉花出苗或苗全的关键。地膜覆盖阻隔了雨水进入土壤,所以覆膜棉田0～40厘米
First, planting water before planting. Temperature and moisture are the two main factors affecting cotton seedlings. After the film mulching temperature is no longer a limiting factor, soil surface moisture has become the key to cotton seedling or seedlings. Film mulching blocks rainwater into the soil, so cotton fields 0 to 40 cm