栽插方式和密度互作对鲜食甘薯产量和商品品质的影响  

Interaction Effects of Planting Method and Density on Yield and Commodity Quality of Edible Sweet Potato

作　　者：徐冰洁 王晓陆 史春余[1] 柳洪鹃[1] Xu Bingjie;Wang Xiaolu;Shi Chunyu;Liu Hongjuan(College of Agronomy,Shandong Agricultural University,Taian 271018,China)

机构地区：[1]山东农业大学农学院,山东泰安271018

出　　处：《山东农业科学》2023年第8期34-38,共5页Shandong Agricultural Sciences

基　　金：山东省薯类产业技术体系首席专家项目(SDAIT-16-01);山东省农业良种工程项目(2020LZGC004)。

摘　　要：为构建鲜食甘薯优质高效群体及确定其最优农艺参数,本试验以鲜食型甘薯品种烟薯25为材料,设置栽插方式和栽插密度两因素裂区试验处理,研究不同栽插方式和栽插密度对甘薯块根产量及商品品质的影响。结果表明,斜插秧条件下,与其它密度相比,栽插密度为66705株/hm^(2)处理(SD20)的块根整齐度、中型薯率和块根产量最高,单薯重变异系数降低8.58%~61.71%,中型薯率提高0.42%~29.44%,块根产量提高2.91%~20.82%;平插方式下,与其它密度相比,栽插密度78465株/hm^(2)处理(HD17)的块根整齐度、中型薯率和块根产量最高,单薯重变异系数降低2.95%~67.62%,中型薯率提高2.07%~56.75%,块根产量提高3.35%~13.36%。综上,斜插秧66705株/hm^(2)(SD20)或平插秧78465株/hm^(2)(HD17)能够获得较高产量和较优商品品质,斜插秧66705株/hm^(2)产量最高,平插秧78465株/hm^(2)薯块商品品质更优。In order to build a high-quality and efficient population of edible sweet potato and determine its optimal agronomic parameters,the edible sweet potato variety Yanshu 25 was used as experimental materi-al,and a two-factor split zone test was conducted to study the effects of different planting methods and densi-ties on sweet potato root yield and commodity quality.The results showed that under oblique planting condi-tions,the treatment at 66705 plants per hectare(SD20)reached the highest tuberous root uniformity,medi-um sweet potato rate and tuberous root yield,the variation coefficient of single potato weight decreased by 8.58%~61.71%,the medium sweet potato rate increased by 0.42%~29.44%,and the tuberous root yield in-creased by 2.91%~20.82%compared with other density treatments.Under horizontal planting conditions,the tuberous root uniformity,medium sweet potato rate and tuberous root yield under the treatment at 78465 plants per hectare(HD17)were significantly higher than those of the other density treatments,and the varia-tion coefficient of single potato weight decreased by 2.95%~67.62%,the medium sweet potato rate and tuber-ous root yield were respectively increased by 2.07%~56.75%and 3.35%~13.36%.Thus,the SD20 and HD17 treatments could achieve higher yield and better commodity quality,and the SD20 treatment had the highest yield,while the HD17 treatment obtained better commodity quality.

关 键 词：鲜食甘薯 栽插方式 栽插密度 块根产量 商品品质 

分 类 号：S531.04[农业科学—作物学]