论文部分内容阅读
本试验采用 L16(4 5) 正交设计,对贵州西部温凉山区分带轮作中影响小麦套作玉米复合产量( 值) 的主要因子带宽、小麦、玉米及其窝距进行了研究。结果表明:(1) 表现 最佳 的模 式有 二个, 一是 1 .50 m 带宽+ 毕 麦10 号 + 贵 毕303 + 玉 米 窝 距20 .0 c m , 二 是1 .50 m 带 宽+ 贵丰1 号 + 贵 毕301 + 窝距 23 .3 c m ;(2) 试验最佳模 式复合产量 达588 .54 kg/667 m 2 ,复合产值达739 .08 元/667 m 2 ,比 其它 模式 平均 每 667 m 2增收粮食 175 .89 kg , 变幅 为17 .97 ~273 .50 kg , 增长3 .15 % ~86 .81 % , 比 其 它 模 式 平 均 每667 m 2 增 值214 .50 元, 变幅为20 .74 ~334 .81 元,增长2 .89 % ~82 .82 % ;(3) 玉米在整个试验中占复合产量的73 .29 %~83 .67 % ,占复合产值 的69 .03 % ~80 .63 % ,是决定复合产量( 值) 的关键因素。
In this experiment, the orthogonal design of L16 (4 5) was used to study the factors affecting the yield, yield and value of wheat intercropping in the temperate mountainous area of western Guizhou in this study. The results show that: (1) there are two best performance patterns, one is 1. 50 m bandwidth + Bi Mai 10 + Guibusui 303 + corn from 20. 0 c m, two is one. 50 m bandwidth + Gui Feng 1 + you completed 301 + nest distance 23. 3 c m; (2) The best model of the test compound yield of 588. 54 kg / 667 m 2, composite output value of 739. 08 yuan / 667 m 2, an average of 175 food grains per 667 m 2 other than the other patterns. 89 kg, amplitude of 17. 97 ~ 273. 50 kg, an increase of 3. 15% ~ 86. 81%, an average of 214 per 667 m 2 over the other models. 50 yuan, a change of 20. 74 ~ 334. 81 yuan, an increase of 2. 89% ~ 82. 82%; (3) Corn accounted for 73% of compound production throughout the trial. 29% ~ 83. 67%, accounting for 69 of the compound output value. 03% ~ 80. 63%, is the key factor that determines the compound output (value).