干旱区生态环境知识资源中心(Arid): 播量对秸秆带状覆盖冬小麦干物质积累、产量及耗水特性的影响

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	播量对秸秆带状覆盖冬小麦干物质积累、产量及耗水特性的影响
其他题名	Effects of sowing rate on dry matter accumulation and distribution,grain yield of winter wheat and soil water consumption under strip mulch straw
	周翔 1; 柴守玺 1; 黄彩霞 1; 杨长刚 1; 程宏波 2; 常磊 1; 王燕培 1
来源期刊	甘肃农业大学学报
ISSN	1003-4315
出版年	2016
卷号	51 期号:3 页码:31-36
中文摘要	【目的】探究西北黄土高原半干旱雨养条件下秸秆带状覆盖技术种植冬小麦的适宜播量.【方法】于2013~2014年生长季研究了秸秆带状覆盖种植下不同播量(T_1:150 kg/hm~2、T_2:187.5 kg/hm~2、T_3:225 kg/hm~2、 T_4:262.5 kg/hm~2、T_5:300 kg/hm~2)对冬小麦干物质积累与分配、产量及耗水特性影响.【结果】秸秆带状覆盖种植下T_5处理具有最高的籽粒产量,为4 067 kg/hm~2,同时具有最高的WUE(12.1 kg/(hm~2·mm).播量高低与产量构成要素密切相关.增加播量,单位面积穗数增加,但千粒质量和穗粒数降低,且T_5与T_1达到了极显著水平(P< 0.01).播量显著影响花前、花后积累干物质对籽粒的贡献,但花后的影响大于花前,且均以T_5具有最高的籽粒贡献率,说明无论冬小麦处于营养生长还是生殖生长,增加播量可促进茎鞘、叶及颖壳+穗轴储藏性光合产物向籽粒转运.【结论】500 kg/hm~2为秸秆带状覆盖种植技术下推荐播量.
英文摘要	【Objective】This paper is aimed at discussing suitable sowing rate of winter wheat cultivated by strip mulch straw under rainfed condition in semi-arid region of northwest loess plateau.【Method】Five sowing rates were designed under straw strip cover as T_1 (150 kg/hm~2),T_2 (187.5 kg/hm~2),T_3(225 kg/hm~2,T_4(262.5 kg/hm~2)and T_5(300 kg/hm~2)at growing season in 2013~2014 to research the effects of sowing rate on dry matter accumulation and distribution,yield and water consumption of winter wheat.【Result】T_5 had the highest yield of winter wheat (4 067 kg/hm~2) and WUE(12.1 kg/(hm~2·mm)).Sowing rate was closely related to yield components.The number of spikes per unit area increased with increase of sowing rate with higher sowing date,while both 1000-grain weight and grain number decreased,and which was significantly different between T_1 and T_5(P<0.01).Sowing rate markedly promoted dry matter translocation amount of vegetative organs to grains in winter wheat,which was more obvious before florescence than after florescence.T_5 had contribution to seeds from vegetative organs, which indicated that increasing sowing rate could promote dry matter translocation to seeds at the whole stage.【Conclusion】Sowing rate under strip mulch straw is 500 kg/hm~2 over the field.
中文关键词	冬小麦 ; 播量 ; 秸秆带状覆盖 ; 干物质
英文关键词	winter wheat sowing rate strip mulch straw dry matter
语种	中文
国家	中国
收录类别	CSCD
WOS类目	AGRONOMY
WOS研究方向	Agriculture
CSCD记录号	CSCD:5754205
来源机构	甘肃农业大学
资源类型	期刊论文
条目标识符	http://119.78.100.177/qdio/handle/2XILL650/234177
作者单位	1.甘肃农业大学农学院, 兰州, 甘肃 730070, 中国; 2.甘肃农业大学生命科学技术学院, 兰州, 甘肃 730030, 中国
推荐引用方式 GB/T 7714	周翔,柴守玺,黄彩霞,等. 播量对秸秆带状覆盖冬小麦干物质积累、产量及耗水特性的影响[J]. 甘肃农业大学,2016,51(3):31-36.
APA	周翔.,柴守玺.,黄彩霞.,杨长刚.,程宏波.,...&王燕培.(2016).播量对秸秆带状覆盖冬小麦干物质积累、产量及耗水特性的影响.甘肃农业大学学报,51(3),31-36.
MLA	周翔,et al."播量对秸秆带状覆盖冬小麦干物质积累、产量及耗水特性的影响".甘肃农业大学学报 51.3(2016):31-36.