| 播期对阴山北麓干旱半干旱区华油杂62生长及养分吸收的影响 |
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| 引用本文： | 景宇鹏,段玉,张君,牛洁,张三粉,李秀萍,栗燕芳,莎娜.播期对阴山北麓干旱半干旱区华油杂62生长及养分吸收的影响[J].中国农业科技导报,2019,21(9):111-116. |
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| 作者姓名： | 景宇鹏 段玉 张君 牛洁 张三粉 李秀萍 栗燕芳 莎娜 |
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| 作者单位： | 1.内蒙古自治区农牧业科学院资源环境与检测技术研究所, 呼和浩特 010031; 2.内蒙古农业大学草原与资源环境学院, 呼和浩特 010011; 3.乌兰察布市农牧业科学研究院, 内蒙古 乌兰察布 012200 |
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| 基金项目： | 公益性行业（农业）科研专项（201503120）；国家自然基金项目（41501578）；内蒙古自然科学基金项目（2017MS0313，2018MS03007）资助。 |
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| 摘 要： | 以饲料油菜华油杂62为研究对象,在阴山北麓干旱半干旱农牧交错区,通过分期播种,研究了播期对饲料油菜生长发育、产量及养分吸收累积的影响。结果表明:播期推迟导致饲料油菜生育期缩短,尤其缩短了从播种到出苗的时间;有效分枝数、茎粗随播期推迟而增大;出苗数、鲜草产量、养分累积量随播期推迟而下降;但植株地上部N、P、K含量随播期推迟变化趋势各不相同,氮含量先减小后增大,磷含量先增大后降低,钾含量逐渐降低;随播期推迟氮、钾累积量逐渐降低,磷积累量先增大后降低。综合考虑,阴山北麓干旱半干旱农牧交错区饲料油菜最适宜播期应为5月下旬至6月上旬。
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| 关 键 词： | 华油杂62 播期 产量 生长特性 养分积累量 |
Impact of Sowing Date on Growth and Nutrient Accumulation of Huayouza 62 in Arid and Semi-arid Areas at North Foot of Yinshan Mountain |
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| JING Yupeng,DUAN Yu,ZHANG Jun,NIU Jie,ZHANG Sanfen,LI Xiuping,LI Yanfang,SHA Na.Impact of Sowing Date on Growth and Nutrient Accumulation of Huayouza 62 in Arid and Semi-arid Areas at North Foot of Yinshan Mountain[J].Journal of Agricultural Science and Technology,2019,21(9):111-116. |
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| Authors: | JING Yupeng DUAN Yu ZHANG Jun NIU Jie ZHANG Sanfen LI Xiuping LI Yanfang SHA Na |
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| Institution: | 1.Institute of Resources Environment and Detection Technology, Inner Mongolia Academy of Agricultural and Animal Husbandry Sciences, Hohhot 010031; 2.College of Grassland, Resources and Environment, Inner Mongolia Agricultural University, Hohhot 010011; 3.Ulanqab Academy of Agricultural and Animal Husbandry Sciences, Inner Mongolia Ulanqab 012200, China |
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| Abstract: | Taking feed rape Huayouza 62 as research object, this paper studied the effects of sowing date on growth, yield and nutrient uptake and accumulation of feed rapeseed by different sowing dates in the arid and semi-arid area and agro-pastoral transition zone at north foot of Yinshan mountain. The results showed that: Delaying sowing date could shorten the growth period of feed rape, especially the time period from sowing to seedling emergence; lead the effective branch number and stem diameter increasing; decline seedling emergence number, fresh grass yield and nutrient accumulation. While, the changing trend of plant N, P, K contents above ground were different along with the changing trend in sowing date delay. The N content reduced first, then increased. P content increased first then reduced. K content was gradually decreasing. The quantities of N and K accumulation were gradually decreasing, along with the sowing date delaying. The accumulation of P increased first then reduced. For overall consideration, the suitable sowing date for feed rape in the arid and semi-arid area and agro-pastoral transition zone at north foot of Yinshan mountain was from late May to early June. |
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| Keywords: | Huayouza 62 sowing date yield growth characteristic nutrient accumulation |
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