龙粳38的覆膜高产栽培技术研究

对起垄覆膜、起垄无膜处理与常规进行对比试验研究,结果表明:起垄覆膜处理水稻株高增加18.4 cm,分蘖起始时间早9 d、最高分蘖时间早7 d、最高分蘖增加47.5株/m2、穗数增加57.4穗/m2、齐穗和成熟早2 d和3 d、穗粒数增加6.15粒,而千粒重降低1 g、最终水稻理论增产102.8 kg/667 m2,实测产量增加26.6 kg/667 m2,增产达4.36%;起垄无膜处理水稻株高降低4.8 cm、收获穗数降低13.3穗/m2,理论产量减少19 kg/667 m2实测产量减少94.4 kg/667 m2,最终常规处理比起垄无膜处理增产14.65%。

Research on High Yield Cultivation Techniques of Mulching on Longjing-31

The test of mulching and ridging cultivation were made on Longjing-31, the result indicated that treatment of mulching and ridging cultivation can increase plant height with 18.4 era, early 6611eting with 9 days, advanced mature with 2-3 days, maximum tiller time advance 7 days, increase maximum tiller with 47.5 plant/m2, increase panicle number with 57.4 panicles/m2, heading stage and mature stage can advance 2 days and 3 days, increase grains per panicle with 6.15, decrease thousand seed weight with 1 g, and increase yield theoretically with 102.8 kg/667 m2, increase measured production with 26.6 kg/667 m2 and increase production 4.36% which compared with control. The treatment of plastic,film-non-covered reduce plant height with 4.8 era, spikelet numbers with 13.3 panicles/mZ,decrease yield theoretically with 19 kg/667 m2, decrease measured production with 94.4 kg/667 m2, conventional treatment increase production 14.65% than The treatment of plastic- film-non-covered.