【摘要】 随着社会发展,甘薯的商品薯率已经成为影响甘薯栽培收益的重要因素之一,为了进一步探索豫中南地区鲜食甘薯栽培新技术,试验以鲜食型甘薯新品种漯苏薯18号为研究对象,以栽培密度和生育期为研究因素,设计拉丁方试验。结果表明,鲜薯产量随生育期、密度增加而提高,在生育期达130 d、栽培密度达5 000株/667 m~2时,鲜薯产量增加不再显著;商品薯率在130 d时达最大值;单株结薯数与栽培密度和生育期无关。因此，在鲜食甘薯的生产中适当增加栽培密度和控制生育期,有利于提高收益;漯苏薯18号的适宜栽培密度为5 000株/667 m~2,生育期为130 d左右。更多还原

【Abstract】 With the development of society,the commercial potato yield of sweet potatoes has become one of the important factors affecting the cultivation income of sweet potatoes.In order to further explore the new cultivation techniques of fresh sweet potatoes in the central and southern regions,the experiment took the new fresh sweet potato variety Luosushu 18 as the research object,and designed a Latin square experiment with cultivation density and growth period as the research factors.The results showeel that the fresh potato yield increases with the growth period and density.When the growth period reaches130 days and the cultivation density reaches 5 000/667 m~2 plants,the increase in fresh potato yield was not significant.The commodity potato yield reached its maximum value at 130 days.The number of tubers per plant was not related to cultivation density and growth period.In the production of fresh sweet potatoes,it was necessary to increase the cultivation density and control the growth period appropriately,which is beneficial for improving profits.For Luosushu 18,the suitable cultivation density is 5 000/667 m~2 plants,with a growth time of about 130 days.更多还原