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玉米地膜覆盖栽培是一项行之有效的增产措施,但是由于地膜不断涨价,对推广地膜玉米有很大影响。据试验,采用半幅薄膜覆盖,能取得同样的增产效果,而且降低了生产成本,值得推广。播种前作90厘米宽床,采用穴距35—39厘米的“双株紧靠”或留“拐子苗”,实行单行密播,播后覆盖“厘米宽膜(半幅),透光面可达25—30厘米。玉米生育指标与整幅膜相差无几,但早衰等病害还轻于整幅膜覆盖。
Film mulching cultivation of corn is an effective stimulation measure, but due to the continuous price increase of mulching film, it has a great impact on the promotion of plastic mulching. According to the test, the use of half-film coverage, can achieve the same yield increase, but also reduces production costs, it is worth promoting. Before sowing 90 cm wide bed, the hole distance 35-39 cm “double strain close” or leave “child seedlings”, the implementation of single-line sowing, broadcast cover "cm wide film (half), the transmission surface up to 25 -30 cm. Maize growth indicators and the whole film is almost the same, but premature aging and other diseases are also less than the entire film coverage.