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时间:2020-04-12
《春薯垄作方式研究-论文.pdf》由会员上传分享,免费在线阅读,更多相关内容在行业资料-天天文库。
1、浙江农业学报ActaAgricuhuraeZhejiangensis,2014,26(3):549—555http://www.zjnyxb.cn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):549·555.DOI:10.3969/j.issn.1004—1524.2014.03.03春薯垄作方式研究沈升法,吴列洪,李兵(浙江省农业科学院作物与核技术利用研究所,浙江杭州310021)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
2、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,且产量问无显著差异。早熟品种浙薯20的块根生长速度与f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2O作
3、为春薯食用早收栽培,则宜选择双行大垄。关键词:春薯;垄作方式;生长动态;干物质积累;机械化生产中图分类号:S531文献标志码:A文章编号:1004-1524(2014)03-0549-07StudiesonridgePlowingwaysofspringsweetpotatoSHENSheng—fa.WULie-hong.LIBing(InstituteofCropsandNuclearTechnologyUtilization,ZhejiangAcademyofAgriculturalSciences,Hangzhou310021,China)Abstract:Inthe
4、presentstudy,theinfluenceofdifferentridgemodesincludingsingleridge(SR),wideridgefordoublerows(WR)andwideridgegashedfordoublerOWS(WRG)onthegrowthanddrymatteraccumulationofsweetpotatowerecompared,toprovidereferencesforthemechanizedproduction.ItwasshownthatshootgrowthunderSRandWRwereunimodala
5、ndbimodal,respectively,whilethegrowthunderWRGwassteady.ThegrowthanddrymatteraccumulationofroottuberofsweetpotatoCV.Xushu22showedasynchronouseffectwiththeshootgrowth.ThechangesofT/Rvaluewerereasonable,andtherewasnosignificantdifferenceofyieldsamongthe3ridgesowingways.ForCV.Zheshu20,thegrowt
6、handdrymatteraccumulationofroottuberexhibitedalag—effectonshootgrowth.UnderSR,theearliergrowthpeakofshootprovidedbasisforthelatergrowthanddrymatteraccumulationinroottuber,andthuswasbeneficialforthehighyieldproduction.However,theearliergrowthdeficiencyunderWRandWRGhinderedthesuccessivegrowt
7、handdrymatteraccumulationinroottuber.andconsequentlywasadverseforthehighyieldproduction.ItwasconcludedthatCV.Xushu22couldbecultivatedbySR,WRandWRG.whileSRiSthebestwayformechanizedproductionofCV.Zheshu20.But,ifCV.Zheshu20wascultivatedasspringediblevarietyforear
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