论文部分内容阅读
夏玉米采取塑盘育苗,1 叶1 心带土移栽产量比麦田套种和夏直播分别高11 .1 % 和25 .7 % ;3 叶1心带土移栽产量比套种和直播高3 .6 % 和17 .2 % ,5 叶1 心带土移栽产量低于套种6 .3 % ,比直播高6 .0 % 。移栽玉米前期生长慢,拔节期生长加快,到抽雄开花期1 叶1 心移栽比套种提前2d ,3 叶1 心移栽与套种同步,移栽玉米比直播分别提前了7d ,5 d 和3d ,灌浆期相对较长。另外,叶面积系数、干物质积累量、穗部性状和田间生长整齐度等群体特征都不同程度的好于麦田套种和夏直播玉米。
Summer maize plastic plate to take seedlings, 1 leaf 1 heart of soil transplanting yield than wheat intercropping and summer seeding respectively 11. 1% and 25. 7%; 3 leaves 1 heart with soil transplanting yield and intercropping 3 higher. 6% and 17. 2%, 5 leaves 1 heart with soil transplanting yield lower than 6. 3%, 6 higher than the broadcast. 0%. Transplanting maize early slow growth, jointing growth accelerated, to tasseling flowering 1 leaf 1 heart transplanting than the intercropping 2d, 3 leaf 1 heart transplanting and interplanting synchronization, transplanting corn than direct seeding were 7d, 5d and 3d, filling period is relatively long. In addition, population characteristics such as leaf area coefficient, dry matter accumulation, panicle traits and field uniformity were all better than those in wheat field and summer seeding.