• 首页 | 编委会 | 期刊简介 | 投稿指南 | 审稿指南 | 联系我们 | 留言板
缓控释肥组配对长江上游早熟杂交籼稻再生稻产量和物质积累的影响
    点此下载全文
引用本文:张巫军,段秀建,杭晓宁,唐明瑜,姚 雄,唐永群,刘强明,文 明,肖人鹏,张现伟,李经勇.缓控释肥组配对长江上游早熟杂交籼稻再生稻产量和物质积累的影响[J].西北农业学报,2021,(1):74~82
DOI:10.7606/j.issn.1004-1389.2021.01.009
摘要点击次数: 178
全文下载次数: 115
作者单位
张巫军,段秀建,杭晓宁,唐明瑜,姚 雄,唐永群,刘强明,文 明,肖人鹏,张现伟,李经勇 (1.重庆市农业科学院/重庆再生稻研究中心,重庆 4000002.四川台沃种业有限责任公司,四川绵阳 621000) 
基金项目:国家重点研发计划(2017YFD0300105,2016YFD0300508,2016YFD0300907)。
中文摘要:旨在研究长江上游再生稻区头季稻缓控释肥优化方案对早熟杂交籼稻头季稻和再生稻物质积累及产量的调控效应。以早熟杂交籼稻‘广8优粤禾丝苗’为材料,头季稻机插开展试验,设置6个施肥处理,分别为4个月树脂包膜尿素一次性基施处理(B-PCU)、缓释掺混肥一次性基施处理(B-SRFB)、4个月树脂包膜尿素一基一蘖处理(BT-PCU)、缓释掺混肥一基一蘖处理(BT-SRFB)、当地常规施氮处理(CF)和全生育期不施氮肥对照处理(CK)。结果表明,较CF处理,4个月树脂包膜尿素头季稻产量降低,再生稻产量增加,差异不显著;缓释掺混肥增加头季稻和再生稻产量,再生季产量差异达显著水平,主要归因于有效穗明显增加,提高库容水平,一基一蘖处理>一次性基施处理。较CF处理,不同缓控释肥处理均降低头季稻花前的物质积累,但不同缓控释肥一基一蘖处理明显增加成熟期物质积累,归因于花后作物生长速率显著增加;再生季,不同施肥处理再生力相当,缓释掺混肥处理叶面积指数显著高于CF和4个月树脂尿素,再生季作物生长速率明显增加,进而提高成熟期物质积累,其中,缓释掺混肥一基一蘖处理最高。说明长江上游早熟杂交籼稻‘广8优粤禾丝苗’在中稻-再生稻种植模式中,头季稻采用缓释掺混肥组配尿素的施肥方式有利于中稻-再生稻群体光合产物积累和产量增加。
中文关键词:再生稻  缓控释肥  产量  物质积累
 
Effect of Combined Controlled Released Nitrogen Fertilization on Yield and Dry Matter Accumulation in Early-maturing Ratoon Rice and Indica Rice in Upper Reaches of Yangtze River
Abstract:This experiment aims to investigate the effect of combined controlled released nitrogen fertilizer on ratoon rice yield,dry matter accumulation and crop growth rate on early-maturing indica rice variety in upper reaches of the Yangtze River. With early-maturing indica rice ‘Guang 8 youyuehesimiao’(G8YYHSM) as material,an experiment was conducted with machine rice-transplanting,six nitrogen fertilizer treatments were done in the first season,which included single fertilization of polymer-coated urea (B-PCU),single fertilization of slow-release fertilizer blend (B-SRFB),base-tiller nitrogen fertilizer of polymer-coated urea (BT-PCU),base-tiller nitrogen fertilizer of slow-release fertilizer blend (BT-SRFB),conventional split fertilization (CF) and no nitrogen application in the first season and ratoon season (CK).Compared with CF,polymer-coated urea treatment decreased the yield in first season,but it increased yield and showed no significant difference in ratoon season; slow-release fertilizer blend treatment increased panicle and spikelets per m and thereby,increased yield in both first season and ratoon season,and had significant difference in ratoon crop,and base-tiller nitrogen fertilizer treatment > single fertilization treatment. Compared with CF,in the first season,all controlled released nitrogen treatments lowered dry matter production at heading stage,but base-tiller nitrogen fertilizer treatment increased dry matter production at maturity stage due to higher crop growth rate. In ratoon season,the ratoon ability varied little among different fertilizer treatments,compared with CF,the slow-release fertilizer blend treatments significantly increased LAI,which resulted in higher crop growth rate and dry matter accumulation,thus,increased yield of ratoon season.The BT-SRFB treatment showed highest yield in both first season and ratoon season among different N treatments. These results suggested that base-tiller N fertilizer of combined slow-release fertilizer application could increase crop growth rate,dry matter accumulation for G8YYHSM in first season and improve grain yield across first season and ratoon season in upper reaches of the Yangtze River.
keywords:Ratooning rice  Controlled released nitrogen  Yield  Dry matter production
查看全文  查看/发表评论  下载PDF阅读器
版权所有:  您是本站第  3248420  位访问者
主管单位:中华人民共和国教育部 主办单位:西北农林科技大学,甘肃、宁夏、青海、新疆农(林)业科学院,青海、新疆畜牧(兽医)科学院及新疆农垦科学院 地址:陕西杨凌邰城路3号大铁10号信箱
电话:029-87082760转4 电子邮件:xbnx@chinajournal.net.cn
技术支持:北京勤云科技发展有限公司  京ICP备09084417号

微信关注二维码