【摘 要】
：
为了进一步探索水稻旱穴直播技术在东北冷凉山区的适应性、节省成本和春季水资源,在新宾满族自治县,以机械插秧为对照,采用2BD-H10型水稻精量旱穴直播机播种,试验研究了旱穴直播对水稻生长性状、产量和效益的影响.试验结果表明,与机械插秧相比较,旱穴直播水稻的生育期较短、出苗率较低,平均叶龄减少了0.8片叶,生育期缩短了3d,出苗率为66.04％;两种方法种植的水稻株高差异不显著,在前期,旱穴直播秧苗的
【机 构】
：
沈阳农业大学工程学院,沈阳110866 抚顺市农机技术推广中心,抚顺113008
【出 处】
：
2016水稻机械化直播技术国际研讨会
论文部分内容阅读
为了进一步探索水稻旱穴直播技术在东北冷凉山区的适应性、节省成本和春季水资源,在新宾满族自治县,以机械插秧为对照,采用2BD-H10型水稻精量旱穴直播机播种,试验研究了旱穴直播对水稻生长性状、产量和效益的影响.试验结果表明,与机械插秧相比较,旱穴直播水稻的生育期较短、出苗率较低,平均叶龄减少了0.8片叶,生育期缩短了3d,出苗率为66.04％;两种方法种植的水稻株高差异不显著,在前期,旱穴直播秧苗的株高较矮,中后期旱穴直播水稻的生长速度较快,到收获时水稻的平均株高均为1.05m;旱穴直播水稻的有效分蘖率较低为79.74％,机械插秧水稻的有效分蘖率为88.24％;旱穴直播的水稻产量为7781.49kg/hm2,与插秧相比产量降低了503.3kg/hm2;旱穴直播种植水稻的纯收入是13740.76￥/hm2,与机械插秧相比增加了579.43￥/hm2.研究结论认为,水稻旱穴直播技术在年均降雨量较大、但插秧季节缺水的冷凉地区是可行的.研究成果对水稻旱穴直播技术在东北冷凉地区的推广应用具有重要意义.
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