栽培因素对水稻隔离层育秧秧苗单株带蘖的影响  

Effects of Cultivated Factors on Rice Seedling Tiller of Isolation Layer Raising Per Plant

作　　者：马波[1] 王志江 刘传增[1] 胡继芳[1] 武琳琳[1] 严峰[1] 

机构地区：[1]黑龙江省农业科学院齐齐哈尔分院,黑龙江齐齐哈尔161006 [2]黑龙江省繁荣种畜场,黑龙江齐齐哈尔161006

出　　处：《天津农业科学》2012年第4期143-145,共3页Tianjin Agricultural Sciences

基　　金：黑龙江省科技攻关计划项目(GA09B102-2-4)

摘　　要：采用二次回归正交旋转组合设计,进行了不同播种密度及氮、磷、钾肥施用量对隔离层育秧下秧苗分蘖的影响研究,结果表明,各栽培因素对两个品种单株分蘖的影响大小顺序均为:播种密度>氮肥施用量>钾肥施用量>磷肥施用量。采用逐步回归法得到了单株带蘖的最优回归方程,同时利用频数分析法获得了最佳栽培方案,龙粳21:播种量258.0～282.8g·m-2、施氮量86.0～96.8g·m-2、施磷量82.4～95.9g·m-2、施钾量55.1～65.3g·m-2;垦稻12:播种量221.9～239.0g·m-2、施氮量67.1～80.5g·m-2、施磷量92.0～107.2g·m-2、施钾量57.9～70.4g·m-2。The studied effects of cultivated factors on seedling tiller of isolation layer raising were studied with quadratic general rota- tory combination design, the results showed that the influence degree of cultivated factors on two varieties tillers per plant was sowing density〉 applied N fertilizer 〉 applied K fertilizer 〉 applied P fertilizer, The experiments obtained the optimum regression equation on the tillers per plant by stepwise regression analysis. At the same time, the experiments obtained the optimum planting program by fre- quency analysis. The mode of Longjing 21 was that sowing density 258.0~282.8 g. m-2, applied N 86.0~96.8 g. m-2, Pz05 82.4~95.9 g＇m-2, K20 55.1-65.3 g.m-2. The mode of Ken rice 12 was that sowing density 221.9-239.0 g＇m-2, applied N 67.1~80.5 g＇m-2, P205 92.0~107.2 g＂ m-2, K20 57.9-70,4 g. m-2.

关 键 词：栽培因素 水稻 隔离层 秧苗 分蘖 

分 类 号：S511[农业科学—作物学]