棉花塑膜覆盖栽培技术,我省从1976年开始试验,1979年示范,1982年推广到15万亩。覆盖方式大体有三种。一、行间覆盖等行距播种的棉田,选用比行距宽1尺的塑膜,一幅盖2行播种沟。当出苗8-9成时,将薄膜移至行间,隔行覆盖(图一)。如果是一行播种沟上覆盖一幅,出苗 Cotton plastic film covered cultivation techniques, the province started testing in 1976, 1979 demonstration in 1982 to promote 15 million mu. There are basically three ways to cover. First, the inter-line spacing sown cotton fields, the selection of 1-foot-wide film than the distance, a cover 2 rows sowing ditch. When the emergence of 8-9 into, the film moved to the line, interlacing (Figure 1). If it is a line of sowing on a cover, emergence