摘要
彩色马铃薯新品种‘红美’品质优良,市场潜力巨大,为品种推广提供依据。利用L9(34)正交设计,研究密度和氮磷钾肥料对于彩色马铃薯品种‘红美’主要性状及产量的影响,得出最佳高产模式。结果表明,不同的密度和氮磷钾肥对‘红美’单株块茎重和商品薯率的影响极显著,对单株块茎数的影响不显著。密度、磷钾肥均以中间水平时单株块茎重最高,单株块茎重随着氮肥用量增加而增加,商品薯率随着磷肥增加而增加,施氮量和施钾量均处于中间水平时商品薯率最高。‘红美’最佳高产组合为T9组合,即密度5000株/667m2,施氮量15 kg/667m^(2),施钾量10 kg/667m^(2),施磷量5 kg/667m^(2)时,‘红美’鲜薯产量可达2149 kg/667m^(2)。
The new variety of colorful potato‘Hongmei'has good quality and great market potential,which provides the basis for the variety promotion.L9(34)orthogonal design was used to study the effects of plant density,nitrogen(N),phosphorus(P)and potassium(K)fertilizer factors on the main characters and yields of colorful potato variety‘Hongmei',so as to obtain the best mode for high tuber yield.Different plant densities and N,P and K application rates had highly significant effects on tuber yield per plant and marketable tuber percentage,but had no significant effects on tuber number per plant.The tuber yield per plant was the highest when the density and phosphorus and potassium fertilizer application rates were at the intermediate level,but the tuber yield per plant increased with the increase of nitrogen application rate.The marketable tuber percentage increased with the increase of P fertilizer,however,the marketable tuber percentage was the highest when N and K fertilizer application rates were in the middle level.The optimal combination for high yield of‘Hongmei'was T9,that is,when the density was 5000 plants/667m^(2),nitrogen application rate was 15 kg/667m^(2),potassium application rate was 10 kg/667m^(2),and phosphorus application rate was 5 kg/667m^(2).At this treatment combination,the tuber yield of‘Hongmei'reached up to 2149 kg/667m^(2).
作者
宗洪霞
李保证
肖波
徐茜
ZONG Hongxia;LI Baozheng;XIAO Bo;XU Qian(Chongqing Three Gorges Academy of Agricultural Sciences,Chongqing 404155,China)
出处
《中国马铃薯》
2021年第4期334-340,共7页
Chinese Potato Journal
基金
重庆市科技局项目(cstc2018jscx-msybX0260)。
关键词
红美
高产栽培
主要性状
产量
Hongmei
high yield cultivation
main character
yield
