不同垄向栽培对大豆产量影响的研究

以大豆品种绥农22为试材,于2010年开展了不同垄向栽培对大豆产量影响的研究.结果表明:在苗期、分枝期、开花期、结英期和鼓粒期,东北西南垄向、东南西北垄向和东西垄向的大豆叶面积系数、干物重以及株高、株粒重、株粒数、株英教、经济系数等产量构成因子均低于南北垄向处理;东北西南垄向和东南西北垄向较南北垄向分别减产13.4%和...

Effect of Different Ridge Directions on Yield of Soybean

Taking Suinong 22 as experimental material,the effect of different ridge directions on yield of soybean was studied in 2010.The results showed that the leaf area index,dry matter weight,plant height,seed weight per plant,seed number per plant and economic index of the ridge directions of northeast-southwest,northwest-southeast and east-west were lower than those of south-north ridge direction during the seedling stage,branching period,flowering time,pod formation and seed filling period.Compared with the south-north direction,there was a 13.4% and 14.2% yield lower in the northeast-southwest and southeast-northwest direction respectively which showed a remarkable difference,however,with merely 3.3% yield lower than the south-north direction,the yield decrease of the east-west direction was not so dramatic.It could be concluded that the south-north ridge direction has the better soybean growth index and productive index and was worthy of widespread.