不同播期和密度对马铃薯‘中薯5号’生长发育及产量的影响  

Effects of Different Sowing Dates and Plant Densities on Growth and Yield of Potato 'Zhongshu 5'

作　　者：程林润 张良 卞晓波 蒋梅巧 钱秋平 CHENG Linrun;ZHANG Liang;BIAN Xiaobo;JIANG Meiqiao;QIAN Qiuping(Jinhua Academy of Agricultural Sciences,Jinhua,Zhejiang 321000,China)

机构地区：[1]金华市农业科学研究院,浙江金华321000

出　　处：《中国马铃薯》2018年第5期276-282,共7页Chinese Potato Journal

基　　金：浙江省农业(粮食)新品种选育重大科技专项子课题(2016C02050-7-2);浙江省"三农六方"科研项目(CTZB-F170623LWZ-SNY1-9)

摘　　要：金华市是浙江省重要的马铃薯产区之一,‘中薯5号’因其品质好,效益高,备受当地青睐,因此探究不同播期和密度对‘中薯5号’生长发育及产量的影响。结果表明,在密度60 000株/hm2时,随着播种期推迟,鲜薯产量及商品薯率呈先上升后下降趋势,播期在2月4日时,产量达46 237 kg/hm2;播期在1月15日时,随着密度增加,鲜薯产量呈先上升后下降趋势,而商品薯率则随密度增加呈逐渐下降趋势,密度在72 000株/hm2时,产量达48 675 kg/hm2。因此不同播期和密度对‘中薯5号’的生育期和产量有显著影响,金华市在1月下旬至2月上旬播种,密度在66 000～72 000株/hm2,产量较高。Jinhua City is one of the important potato production regions in Zhejiang Province. ＇Zhongshu 5＇ is favored by the local people because of good quality and high profit. The purpose of this research was to understand the effects of sowing date and plant density on the growth and yield of ＇Zhongshu 5＇. When the density was 60 000 plant/ha, the yield of potato and marketable tuber percentage was increased first and then decreased with the sowing date was postponed. When the sowing date was on February 4th, the yield reached up to 46 237 kg/ha. With increasing of density, the yield of potato was increased first and then decreased, but the marketable tuber percentage showed a descending trend, when the sowing date was on January 15th. The yield was up to 48 675 kg/ha when the density was 72 000 plant/ha. Different sowing dates and densities have significant influence on growth and yield of ＇Zhongshu 5＇, and in Jinhua City, high yield could be achieved when the sowing date is from late January to early February and plant density ranges from 66 000 to 72 000 plant/ha.

关 键 词：马铃薯 播期 密度 生长发育 产量 

分 类 号：S532[农业科学—作物学]