水稻套种直播油菜技术研究

摘要

以湖南农业大学油料作物研究所提供的湘杂优753为供试品种，分3个播期(晚稻收割前7 d、晚稻收割前3d和晚稻收割后板田撒播)和2种种子处理方式(用烯效唑处理和不用烯效唑处理)对稻田套播油菜的产量及其产量结构进行了研究。结果表明：播种时间和种子处理方式对套播油菜产量均有显著影响，水稻套种油菜以烯效唑浸种后晚稻收割前3d直播最好。%The yield and its components of rapeseed in rice/rapeseed intercropping system were studied under three sowing dates (7 days before late rice harvesting, 3 days before late rice harvesting, after late rice harvesting) and two seed treat-ment ways ( seed processing with uniconazole, un-processing) in paddy field with Xiangzayou 753 as material which pro-vided by the Oil Crops Research Institute of Hunan Agricultural University. The results showed that there existed signifi-cant effects of sowing date and seed processing ways on yield of rapeseed, and the best treatment was seeding three days before harvesting of rice after seed processing with uniconazole.