干旱区生态环境知识资源中心(Arid): 不同灌溉量下氮肥施用时期对甜菜光合物质生产及产量的补偿作用

Arid

	不同灌溉量下氮肥施用时期对甜菜光合物质生产及产量的补偿作用
其他题名	The Compensatory Effect of Nitrogen Fertilizer Application Period on the Photosynthetic Substances Production and Yield of Sugar Beet under Different Irrigation Amounts
	董心久 1; 杨洪泽 1; 周建朝 2; 高卫时 1; 张立明 1; 李思忠 1; 石洪亮 1; 刘军 1
来源期刊	新疆农业科学
ISSN	1001-4330
出版年	2018
卷号	55 期号:4 页码:635-646
中文摘要	【目的】研究不同灌溉定额下氮肥施用时期对甜菜生理指标、灌溉水生产率、氮肥农学利用率及氮肥偏生产力的影响,为甜菜水肥高效利用提供理论依据.【方法】采用裂区试验设计,主区为2个灌溉定额,副区为5个氮肥施用时期(纯N总量一致120 kg /hm~2 ) .【结果】同一氮肥施用时期,随着灌溉量的减少甜菜Pn、Er、茎叶干重、根干重、总干重、单根重、产量、产糖量(除N4处理)及氮肥偏生产力均呈下降趋势,甜菜含糖率、产量增产率、灌溉水生产力及氮肥农学利用效率均有提高;同一灌溉量,随着氮肥施用时期的后移各项测定指标先增后减,N4处理补偿指数最优,灌溉定额4 650比5 850 m~3 /hm~2甜菜各项指标补偿指数提高- 1.6% ~ 27.5%.【结论】在北疆甜菜产区合理的水氮管理模式为:灌溉定额4 650 m~3 /hm~2 ,氮肥基施1 /2,7月中旬追施1 /2.
英文摘要	【Objective】The purpose of this project is to study the effects of nitrogen fertilizer application period on sugar beet net photosynthetic rate ( Pn) ,transpiration rate ( Er) ,dry matter accumulation,yield and quality,irrigation water use efficiency,nitrogen use efficiency and fertilizer partial productivity under different irrigation amount in order to provide scientific theoretical basis for the efficient use of water and fertilizer of sugar beet in arid area.【Method】The design of split plot experiment was adopted in the test. Two irrigation quotas were used in the main area and five nitrogen application periods were used in the deputy area. The total amount of pure nitrogen was the same as 120 kg /hm~2 .【Result】Under the same nitrogen fertilizer application period treatment,with the decrease of irrigation amount,the Pn,the Er,the stem and leaf dry weight,the root dry weight,the total dry weight,the root weight,the yield and sugar yield ( except N4 treatment) and nitrogen partial factor productivity were decreased,the sugar content,the yield increase rate,the irrigation water use efficiency and the agronomic nitrogen use efficiency were improved in sugar beet. Under the same irrigation amount treatment,with the postponing of nitrogen fertilizer application period,the above indexes increased first and then decreased,and the optimal compensation index was N4 treatment. Compared with 5,8 50 m~3 /hm~2 irrigation quota,the compensation index for peak value of each index of beet under 4, 650 m~3 /hm~2 irrigation quota was increased by - 1.6% - 27.5%.【Conclusion】The reasonable water and nitrogen management mode in the sugarbeet production area of Northern Xinjiang was as follows: irrigation quota 4650 m~3 / hm~2,nitrogen fertilizer base application 1 or 2 times in mid - July.
中文关键词	甜菜 ; 灌溉量 ; 氮肥施用时期 ; 光合物质生产 ; 产量
英文关键词	sugar beet irrigation amount nitrogen fertilizer application period photosynthetic substances production yield
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:6298397
资源类型	期刊论文
条目标识符	http://119.78.100.177/qdio/handle/2XILL650/238530
作者单位	1.新疆农业科学院经济作物研究所, 乌鲁木齐, 新疆 830091, 中国; 2.黑龙江大学, 哈尔滨, 黑龙江 150080, 中国
推荐引用方式 GB/T 7714	董心久,杨洪泽,周建朝,等. 不同灌溉量下氮肥施用时期对甜菜光合物质生产及产量的补偿作用[J],2018,55(4):635-646.
APA	董心久.,杨洪泽.,周建朝.,高卫时.,张立明.,...&刘军.(2018).不同灌溉量下氮肥施用时期对甜菜光合物质生产及产量的补偿作用.新疆农业科学,55(4),635-646.
MLA	董心久,et al."不同灌溉量下氮肥施用时期对甜菜光合物质生产及产量的补偿作用".新疆农业科学 55.4(2018):635-646.