【摘要】 根据姚李水文试验站 3年试验资料 ,重点介绍稻田覆膜后具有保温、保墒、保肥的效应及群体生育性状效应和节水、增产对比效益分析 ,为该项目的进一步发展提供理论依据更多还原

【Abstract】 An experiment was carried out in continuous three years in Yaoli Hydrology Investigation Station to study the effects of plastic film mulch to heat and water balance in dry seeded rice fields. Results show that plastic mulch increase soil temperature and soil moisture obviously. The yield raising and water saving effects of plastic film mulch on dry seeded fields are also remarkable. The problems needed to pay more attention to for further development of the technique also are discussed in this paper.更多还原