江苏大丰县方向人民公社位于大丰县的东南角,距离黄海边40里,属盐垦区。常年平均温度一般为摄氏14度,无霜期一般为205天,初霜期11月初,晚霜4月上旬,常年降雨量1,000公厘左右;土质为盐渍性砂壤土。早春少雨、温度上升慢,雨量分布不匀,雨量集中的月分往往引起地下水位过高,土壤结构差,有机质缺乏等均为不利因素。如何克服此类不利因素,力争棉花亩产跃进,成为实施技术措施的首要目的。 Dafeng County, Jiangsu direction of the people’s commune is located in the southeast corner of Dafeng County, 40 miles from the Yellow Sea, is salt reclamation area. The average annual temperature is generally 14 degrees Celsius, frost-free period is generally 205 days, the first frost in early November, late frost in early April, perennial rainfall of about 1,000 mm; soil salinized sandy loam. Early spring less rain, slow temperature rise, uneven rainfall distribution, monthly rainfall is often caused by excessive groundwater level, soil structure is poor, lack of organic matter are unfavorable factors. How to overcome such unfavorable factors and strive to leap forward in the mu yield of cotton has become the primary objective of implementing technical measures.