有机水稻覆膜插秧技术研究

Preliminary Experiment of Film Mulching Transplanting Technology for Organic Rice

有机水稻覆膜插秧栽培试验结果表明：覆膜插秧提高了水稻生长前期土壤温度,加速了前期有机肥分解,为水稻分蘖期提供足够养分,有利于水稻生长.覆膜插秧水稻的株高、穗长、穗数、千粒重均较常规插秧的高;实产较常规插秧提高20.9％;覆膜插秧水稻全生育期较常规提前4～6 d,提前完成了有效分蘖;覆膜插秧水稻对于稗草、鸭舌草防除效果好,除草效果达86％.

The result of an experiment of the film mulching transplanting technology for organic rice showed that the film mulching transplanting increased the soil temperature during the early stage of the rice growth, speeded up the decomposition of the organic fertilizer in early stage, provided sufficient nutrition for the rice tillering stage and was conductive to the rice growth. The plant height, ear length, ear number and grain weight of the film mulching transplanting rice were higher than those of the common rice. The actual yield was 20.9% higher than that of the common rice. The whole development period of the film mulching transplanting rice advanced 4-6 days compared with that of the common rice and the effective tillering was completed in advance. The film mulching transplanting rice had a better effect on the control of Echinochloa erusgalli and Monochoria and the weed control effect reached 86%.