| 淮北棉区棉花高能同步增产原因分析 |
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| 引用本文： | 王永乐,宋家祥,王建棠,彭希竹. 淮北棉区棉花高能同步增产原因分析[J]. 南京农业大学学报, 1988, 0(3) |
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| 作者姓名： | 王永乐 宋家祥 王建棠 彭希竹 |
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| 作者单位： | 灌云县农业技术推广中心(王永乐)，江苏农学院(宋家祥)，灌云县农业局(王建棠)，灌云县棉花办公室(彭希竹) |
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| 基金项目： | 《江苏省不同生态棉区棉花高产优质形成规律及其经济栽培模式研究》课题 |
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| 摘 要： | 棉花高能期与高能季节同步性较好的处理比同步性较差的处理增产19.71％(r=0.7701)。同步期长短与产量呈极显著正相关(r=0.9315),其回归方程Y=169.40+3.24x;同步期成铃强度与产量也呈极显著正相关(r=0.8268),其回归方程Y=127.14+10.97x。因此,增加同步时间和提高成铃强度,是棉花高产优质的主攻方向。 同步性较好的处理,在同步期内积累的总干物重和生殖器官干物重分别为584.7,289.3kg/亩,各占一生中的64.6％,69.6％,比较差的处理分别高37.74％,87.25％;同步期成铃数为5.32万个,占最终成铃数的82.4％,比较差的处理高42.9％;同步好的光能利用率平均为1.73％,比较差的处理平均高0.50％。
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| 关 键 词： | 棉花 高能 同步 增产原因 |
THE REASON OF COTTON YIELD-INCREASING WITH SYNCHRONISM OF ACTIVELY ENERGY-CONSERVING PERIOD AND HIGH ENERGY SEASON IN NORTH HUAI REGION |
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| Wang Yongle,. THE REASON OF COTTON YIELD-INCREASING WITH SYNCHRONISM OF ACTIVELY ENERGY-CONSERVING PERIOD AND HIGH ENERGY SEASON IN NORTH HUAI REGION[J]. Journal of Nanjing Agricultural University, 1988, 0(3) |
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| Authors: | Wang Yongle |
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| Abstract: | The yields of cotton with better synchronism between actively energyconserving period and high energy season were 19.71% (r=0.7701) higher than those with poorer synchronism. The cotton yields showed a significantly positive correlation with the synchronous time (r=0.9315) and set intensity of cotton (r=0.8268) and their regression equations were y=169.40+3.24x and y=127.14+10.97x, respectively.Dry weight of the whole plant, dry weight of reproductive organ and boll number formed during the synchronous period of better synchronism exceeded those of the poorer by 37.74%, 87.25%, 42.9%, respectively. |
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| Keywords: | Cotton High energy season Synchronism Reason of increase production |
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