‘苏薯11号’的高产生理及栽培技术研究  

High yield physiology and cultivation technology of sweetpotato variety ‘Sushu 11’

作　　者：谢一芝[1] 贾赵东[1] 郭小丁[1] 马佩勇[1] 边小峰[1] 苏兴智[2] 徐宗进[2] 

机构地区：[1]江苏省农业科学院粮食作物研究所,南京210014 [2]江苏省东海县农业技术推广中心,东海222300

出　　处：《上海农业学报》2014年第6期155-158,共4页Acta Agriculturae Shanghai

基　　金：国家863计划(2012AA101204);现代农业产业技术体系建设专项资金(CARS-11-C-03);江苏省农业科技自主创新基金[CX(13)2028];江苏省科技支撑计划项目(BE2013437)

摘　　要：对淀粉加工型甘薯品种‘苏薯11号'的高产生理和栽培技术进行了研究。结果表明:‘苏薯11号'具有较高的叶面积指数和净同化率,经济系数也高于对照品种‘苏渝303',薯块干物质积累在栽后90—120d明显高于对照品种,这是‘苏薯11号'获得高产的主要生理基础。‘苏薯11号'的栽培技术研究结果表明,鲜薯产量、茎叶产量、生物产量和薯干产量肥料处理间差异极显著,鲜薯产量不仅受氮、磷、钾的施用量影响,而且与氮、磷、钾配比有关,试验中以氮、磷、钾肥的施用量分别为11 5.5 kg/hm^2、75 kg/hm^2和225 kg/hm^2(氮、磷、钾配比为1.5:1:3)时鲜薯产量最高。The high yield physiology and cultivation technology of ＇Sushu 11＇（a starch use sweetpotato variety） were studied.＇Suyu 303 ＇ being cultivated in the present sweetpotato production was used as the control.The results showed that the high yield physiologic characters of＇Sushu 11＇ were high leaf area index,net assimilation rate after planting,and with higher economic coefficient compared with the control variety ＇Suyu 303＇.During the 90—120 days after planting,the dry matter accumulation of ＇ Sushu 11 ＇ was faster than that of ＇ Suyu 303＇.Results of cultivation experiments showed that different fertilizer treatments had significant effects on fresh root yield,vine yield,biology yield and dry matter yield.The fresh root yield was affected not only by amount of N,P and K,but also by proportion of N,P and K.The highest root yield had been obtained when 115.5 kg/hm2 N,75 kg/hm2 P_2O_5,225 kg/hm2 K_2O,and N：P_2O_5：K_2O= 1.5：1：3 were applied in this experiment.

关 键 词：甘薯 高产生理 栽培技术 

分 类 号：S531[农业科学—作物学]