摘要
针对内蒙古黄土高原毛叶苕子苗情不稳、低产晚熟等问题,通过连续2年田间小区试验,探究4月10日(ST1)、4月20日(ST2)、4月30日(ST3)和5月10日(ST4)4个播期下毛叶苕子生育期持续时间、农艺性状、干物质累积和籽粒产量变化规律。结果表明:播期对毛叶苕子各生育期持续时间及出苗率有显著影响,不同播期下毛叶苕子株高、单株荚数、单荚粒数和单株根瘤数差异显著,且干物质积累量呈慢—快—慢增长趋势,其中均以ST2播期表现最好;在产量方面,2年均以ST2处理最高,为942.45~1056.75kg/hm^2,籽粒产量同积温和降水量显著相关,且积温对产量的影响最大。综上所述,4月20日播种毛叶苕子能较大程度适应当地水热条件,增加单株荚数、单荚粒数和单株根瘤数,实现稳产高产。4月20日为内蒙古黄土高原毛叶苕子最佳播期。
To solve practical problems such as unstable seedling condition, low yield and late ripening of hairy vetch on the Loess Plateau of Inner Mongolia, a field plot research with four sowing dates was designed. The four sowing dates were April 10 th(ST1), April 20 th(ST2), April 30 th(ST3) and May 10 th(ST4). The research explored the changes of different sowing dates on growth duration, agronomic characters, dry matter accumulation and grain yield of hairy vetch. Through the field plot experiment for two consecutive years, the results showed that the sowing date had a significant effect on the duration of each growth period and seedling emergence rate of hairy vetch. There were significant differences in plant height, pods per plant, seeds per plant and root nodules per plant under different sowing dates. Dry matter accumulation showed a slow-fast-slow growth trend. Among them, ST2 sowing had the best performance. In terms of yield, ST2 treatment was the highest in both years, which was 942.45-1 056.75 kg/ha. The formation of grain yield was significantly related to accumulated temperature and precipitation, and the accumulated temperature had the greatest effect on grain yield. To sum up, Sowing hairy vetch on April 20 th could adapt to local hydrothermal conditions to a large extent, increased the number of pods per plant, seeds per plant and root nodules per plant, and achieve stable and high yield. It is suggested that suitable sowing date for hairy vetch planting in the Loess Plateau of Inner Mongolia should be on April 20 th.
作者
韩云飞
高日平
任永峰
赵沛义
刘小月
高宇
张鹏
梁广荣
高金龙
Han Yunfei;Gao Riping;Ren Yongfeng;Zhao Peiyi;Liu Xiaoyue;Gao Yu;Zhang Peng;Liang Guangrong;Gao Jinlong(College of Agriculture,Inner Mongolia Agricultural University,Hohhot 010019,Inner Mongolia,China;lnstitute of Resources,En vironme nt and Testi ng Technology Sciences,Inner Mon golia Academy of Agriculture and Animal Husbandry,Hohhot 010031,Inner Mongolia,China;Inner Mongolia Key Laboratory of Dryland Farming,Hohhot 010031,Inner Mongolia,China;lnner Mongolia Agricultural Conservation Scientific Observation Laboratory Station of Ministry of Agriculture and Rural Affairs,Hohhot 011705,Inner Mongolia,China;Agriculture Animal Husbandry Science and Technology Bureau of Qingshuihe County,Hohhot 011600,Inner Mongolia,China)
出处
《作物杂志》
CAS
北大核心
2020年第6期151-157,共7页
Crops
基金
国家绿肥产业技术体系建设专项资金(CARS-22-Z-04)
内蒙古绿肥作物生产与利用创新人才团队项目。
关键词
播期
毛叶苕子
生长发育
产量
Sowing date
Hairy vetch
Growth and development
Yield
