干旱区生态环境知识资源中心(Arid): 控释、常规尿素配施对雨养区春玉米产量及氮素利用的影响

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	控释、常规尿素配施对雨养区春玉米产量及氮素利用的影响
其他题名	Effect of Mixed Applying Controlled-release Urea and Conventional Urea on Yield and Nitrogen Utilization of Spring Maize in Rain Fed Region
	梁熠; 康建宏; 朱荣; 何文寿; 代晓华
来源期刊	水土保持学报
ISSN	1009-2242
出版年	2017
卷号	31 期号:6 页码:237-
中文摘要	为明确宁夏南部雨养种植区玉米合理施氮方式及用量,完善高产高效栽培技术,为干旱半干旱地区玉米高产栽培提供理论与技术支持,以先玉698为试验材料,设置2个氮肥种类(控释尿素和常规尿素,纯氮量都为225 kg/hm~2)和4个氮肥追施量及时期(T1常规尿素基施N150 kg/hm~2+小口期追施N75 kg/hm~2;T2控释尿素基施N75 kg/hm~2+常规尿素基施N75 kg/hm~2+小口期追施常规尿素N75 kg/hm~2;T3控释尿素基施N150 kg/hm~2+常规尿素基施N75 kg/hm~2;T4控释尿素基施N225 kg/hm~2),以不施氮肥为对照,比较研究不同处理对春玉米群体物质生产、氮素运移特性和产量的影响。结果表明,在施氮量相等条件下,控释尿素与普通尿素配合(T3)一次基施比习惯施肥(T1)显著增加了玉米的产量,产量增幅为12.63%,穗粒数和粒重的增加是玉米增产的主要原因。合理增加基肥中控释尿素比例能够显著增加玉米花后和全生育期干物质积累量,同时促进玉米营养器官和籽粒对氮的吸收累积。控释尿素基施有利于氮肥农学效率、氮肥利用率和氮肥贡献率的提高,其中以T3处理最好,氮肥农学利用率和氮肥对产量的贡献率分别比T2和T4高52.12%,22.96%和35.39%,20.53%。因此,建议在宁南山区玉米高产施肥管理中以控释尿素(全部氮肥量的2/3)与常规尿素(全部氮肥量的1/3)全部基施为宜。
英文摘要	The aims of this study were evaluating the impact of mixed applying controlled-release urea and conventional urea on matter accumulation,nitrogen uptake and transport,and grain yield of spring maize,and improving the high yield and high efficiency cultivation techniques in southern Ningxia area.And this study could provide theoretical and technical reference to scientific nitrogen management techniques for spring maize in arid and semi-arid rainfall-fed region.Xianyu698 taken as experiment subject was grown in controlled environments with two nitrogenous fertilizers(controlled-release urea(CRU)and conventional urea(U))in four treatments(T1:applying U as basal fertilizer by N 150 kg/hm~2+ U topdressing at V10 by N 75 kg/hm~2;T2:CRU as basal N 75 kg/hm~2+ U as basal N 75 kg/hm~2+ U topdressing at V10N75 kg/hm~2;T3:CRU as basal N 150 kg/hm~2+ U as basal N 75 kg/hm~2;T4:CRU as basal N 225 kg/hm~2).The treatment without applying nitrogen fertilizer was CK.The results showed that when applying the same amount of nitrogen,compared to conventional urea treatment(T1),reasonable mixed application of controlled-release urea and urea as basal fertilizer(T3)could significantly increase maize yield by 12.63%,and this was mainly due to extremely enhancement of kernel number per ear and kernel weight.Reasonable increasing the ratio of controlled-release urea in basal fertilizer could promote the accumulation of dry matter at post-anthesis and the whole growth period,and increase the absorption and accumulation of nitrogen in vegetative organs and grains of maize.The study also found that applying controlled-release urea was favorable to enhance nitrogen agronomic efficiency,nitrogen use efficiency and fertilizer contribution ratio,and the effect of T3 was the best.The nitrogen agronomic efficiency and fertilizer contribution ratio of T3 were 52.12% and 22.96%,35.39%and 20.53%higher than those of T2 and T4,respectively.This study indicated that it was appropriate to applying reasonable mixed controlled-release urea(two-thirds of the total amount of nitrogen fertilizer)and conventional urea(one-third of the total amount of nitrogen fertilizer)as basal fertilizer.
中文关键词	控释尿素 ; 春玉米 ; 干物质生产 ; 产量 ; 氮素利用率
英文关键词	controlled-release urea spring maize dry matter production yield nitrogen use efficiency
类型	Article
语种	中文
国家	中国
收录类别	CSCD
WOS类目	Engineering
WOS研究方向	Engineering ; Agriculture
CSCD记录号	CSCD:6136049
来源机构	宁夏大学
资源类型	期刊论文
条目标识符	http://119.78.100.177/qdio/handle/2XILL650/236684
作者单位	梁熠, 宁夏大学农学院, 银川, 宁夏 750021, 中国.; 康建宏, 宁夏大学农学院, 银川, 宁夏 750021, 中国.; 朱荣, 宁夏大学农学院, 银川, 宁夏 750021, 中国.; 何文寿, 宁夏大学农学院, 银川, 宁夏 750021, 中国.; 代晓华, 宁夏大学农学院, 银川, 宁夏 750021, 中国.
推荐引用方式 GB/T 7714	梁熠,康建宏,朱荣,等. 控释、常规尿素配施对雨养区春玉米产量及氮素利用的影响[J]. 宁夏大学,2017,31(6):237-.
APA	梁熠,康建宏,朱荣,何文寿,&代晓华.(2017).控释、常规尿素配施对雨养区春玉米产量及氮素利用的影响.水土保持学报,31(6),237-.
MLA	梁熠,et al."控释、常规尿素配施对雨养区春玉米产量及氮素利用的影响".水土保持学报 31.6(2017):237-.