不同扦插方式及栽培密度对紫薯“内17-71”产量的影响  

Effects of Different Cutting Methods and Cultivation Densities on the Yield of Purple Sweet Potato’Nei 17-71’

作　　者：王一鸣 缪鑫 陈娟 宋锐 付伟 林熊 唐建 WANG Yiming;MIAO Xin;CHEN Juan;SONG Rui;FU Wei;LIN Xiong;TANG Jian(Neijiang Academy of Agricultural Sciences of Sichuan Province,Neijiang 641000,China)

机构地区：[1]四川省内江市农业科学院,四川内江641000

出　　处：《蔬菜》2023年第1期10-12,共3页Vegetables

基　　金：四川省衔接推进乡村振兴科技项目(产业发展类)(2022Z HXC0045);内江市东兴区区级项目(QKJ202006,QKJ202016)。

摘　　要：为探究不同栽培方式对紫薯“内17-71”产量的影响,探索其最佳扦插方式及栽培密度,比较研究了不同扦插方式(正插3、5、7节和倒插3、5、7节)及不同株距(17、20、25、33、50 cm)对“内17-71”藤叶和薯块产量的影响。结果表明:无论正插或倒插处理,藤叶667m^(2)产量均随扦插节位的增多而增加,其中正插5节、正插7节处理较高,分别为1840.03、2539.05 kg;且其薯块667 m^(2)产量显著高于其他处理,分别为1840.92、1987.66 kg。随着栽培密度的提高,藤叶和薯块667 m^(2)产量均表现出先增加后降低的趋势,而大中薯率则呈现下降趋势,其中株距25、20、17cm处理的薯块667m^(2)产量分别为1967.65、2164.97、2045.47 kg,显著高于其余处理。综合考虑种植成本及市场对大中薯的需求变化等因素,紫薯“内17-71”的栽培方式以株距20~25 cm、行距100 cm,正插5~7节为宜。In order to explore the effect of different cultivation methods on the yield of purple sweet potato’Nei 17-71’and explore the best cutting method and cultivation density,the effects of different cutting methods(3,5,7 sections of forward inserted and 3,5,7 sections of inverted inserted)and different cultivation densities(17,20,25,33,50 cm of planting distance)on the yield of vines-leaves and sweet potatoes’Nei 17-71’were compared.The results showed that the yield per 667 m~2 of vines-leaves increased with the increasing of cuttage sections under both forward and inverted inserted treatments,and the 5 sections and 7 sections of forward inserted were higher,which were 1840.03 kg and 2539.05 kg,respectively.The yield per 667 m~2 of sweet potatoes with 5 cetions and 7 sections of forward inserted treatments were significantly higher than that of other treatments,which were 1840.92 and 1987.66 kg,respectively.With the increasing of cultivation density,the yield per 667 m~2 of vines-leaves and sweet potatoes increased firstly and then decreased,while the rate of large and medium sweet potatoes showed a trend of decrease.The yield of sweet potatoes treated with plant distance of 25,20,17 cm was 1967.65,2164.97,2045.47 kg per 667 m~2,respectively,which were significantly higher than that of other treatments.Considering the factors such as planting cost and market demand for large and medium sweet potatoes,it was appropriate to cultivate purple sweet potato’Nei 17-71’with 20-25 cm of plant distance,100 cm of row distance and 5-7 sections of forward inserted.

关 键 词：扦插方式 栽培密度 紫薯 产量 

分 类 号：S531[农业科学—作物学]