| 春薯垄作方式研究 |
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| 引用本文： | 沈升法,吴列洪,李兵.春薯垄作方式研究[J].浙江农业学报,2014,26(3):0. |
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| 作者姓名： | 沈升法 吴列洪 李兵 |
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| 作者单位： | 浙江省农业科学院 作物与核技术利用研究所，浙江 杭州 310021 |
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| 基金项目： | 现代农业产业技术体系建设专项资金(CARS-11-C-04) |
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| 摘 要： | 农艺配套是甘薯机械化生产的重要方面，通过对比单垄、双行大垄和双行分垄3种垄作方式对春薯生长及干物质积累的影响，以期为甘薯机械起垄方式选择提供依据。结果表明，单垄下甘薯茎叶呈单峰生长，双行大垄下茎叶呈前后双峰生长，而双行分垄下茎叶平稳生长。晚熟品种徐薯22的块根生长速度与干物质积累对茎叶生长有“同步效应”，三种垄作下T/R值变化均较合理，且产量间无显著差异。早熟品种浙薯20的块根生长速度与干物质积累对茎叶生长有“滞后效应”，单垄下前期茎叶生长高峰为后期块根的快速生长与干物质积累提供了保障，T/R变化合理，产量高，而双行大垄和双行分垄下茎叶前期生长不足，不利于后期块根的生长与干物质积累，收获时T/R值明显偏高，产量较低。春薯采用机械起垄，若作淀粉用，徐薯22可以选择单垄、双行大垄或双行分垄；浙薯20以单垄最佳；但若将浙薯20作为春薯食用早收栽培，则宜选择双行大垄。
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| 关 键 词： | 春薯 垄作方式 生长动态 干物质积累 机械化生产 |
Studies on ridge plowing ways of spring sweet potato |
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| SHEN Sheng fa,WU Lie hong,LI Bing.Studies on ridge plowing ways of spring sweet potato[J].Acta Agriculturae Zhejiangensis,2014,26(3):0. |
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| Authors: | SHEN Sheng fa WU Lie hong LI Bing |
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| Institution: | Institute of Crops and Nuclear Technology Utilization， Zhejiang Academy of Agricultural Sciences， Hangzhou 310021， China |
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| Abstract: | In the present study， the influence of different ridge modes including single ridge (SR)， wide ridge for double rows (WR) and wide ridge gashed for double rows (WRG) on the growth and dry matteraccumulation of sweet potato were compared， to provide references for the mechanized production. It was shown that shoot growth under SR and WR were unimodal and bimodal， respectively， while the growth under WRG was steady. The growth and dry matter accumulation of root tuber of sweet potato cv. Xushu22 showed a synchronous effect with the shoot growth. The changes of T/R value were reasonable， and there was no significant difference of yields among the 3 ridge sowing ways. For cv. Zheshu20， the growth and dry matter accumulation of root tuber exhibited a lag effect on shoot growth. Under SR， the earlier growth peak of shoot provided basis for the later growth and dry matter accumulation in root tuber， and thus was beneficial for the high yield production. However， the earlier growth deficiency under WR and WRG hindered the successive growth and dry matter accumulation in root tuber， and consequently was adverse for the high yield production. It was concluded that cv. Xushu22 could be cultivated by SR， WR and WRG， while SR is the best way for mechanized production of cv. Zheshu20. But, if cv. Zheshu20 was cultivated as spring edible variety for early harvest， WR would be the best choice． |
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| Keywords: | spring sweet potato ridge modes growth dynamic dry matter accumulation mechanized production |
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