中国农业科学院农业信息研究所 中国农学会
Agricultural Information Institute of CAAS China Association of Agricultural Science Societies
En
Ch
中国农业科学院农业信息研究所 中国农学会 主办

AI检索

订阅

返回顶部
当前位置: 首页 > 文章 > 灌溉和施氮方式对甘肃陇中黄土高原春小麦产量和土壤含水量与有效氮含量的影响 中国农学通报 2020 (8) 8-16
Position: Home > Articles > Effects of Irrigation and Nitrogen Application on Spring Wheat Yield,Soil Water Content and Available Nitrogen Content in Loess Plateau of Central Gansu Chinese Agricultural Science Bulletin 2020 (8) 8-16

灌溉和施氮方式对甘肃陇中黄土高原春小麦产量和土壤含水量与有效氮含量的影响

作  者：
陈志明;李广;吴建国;闫丽娟
单  位：
甘肃农业大学农学院;甘肃农业大学林学院;中国环境科学研究院
关键词：
陇中黄土高原;小麦;产量;土壤硝态氮;土壤铵态氮;土壤含水量
摘  要：
旨在研究影响小麦产量的最佳灌溉与施氮方式组合。以‘定西42号’春小麦为材料,采用水氮互作的方法,设4种灌溉量(单位面积水深50 mm、100 mm、150 mm、200 mm)和3种施肥方式(拔节期施纯氮肥40 kg/hm~2、开花期施纯氮肥40 kg/hm~2、拔节期和开花期施纯氮肥40 kg/hm~2和50 kg/hm~2)。(1)灌溉量150 mm与开花期施氮肥40 kg/hm~2处理时,小麦产量都最高。(2)灌溉量150 mm时各个土层含水量最高,不同施氮处理,各个土层含水量高低顺序为分蘖期<开花期<拔节期。(3)小麦植株耗水量随灌溉量增加而增加、水分利用效率随灌溉量增加而减少。(4)分蘖期灌溉量150 mm时各个土层硝态氮含量最高;拔节期,0～10 cm土层铵态氮和硝态氮含量最高;开花期,灌溉量150 mm和追施纯氮肥40 kg/hm~2时各个土层硝态氮和铵态氮含量最高。灌溉量150 mm和开花期施纯氮肥40 kg/hm~2方式搭配,对甘肃陇中黄土高原春小麦产量、土壤有效氮含量和水分节约最有益。
译  名：
Effects of Irrigation and Nitrogen Application on Spring Wheat Yield,Soil Water Content and Available Nitrogen Content in Loess Plateau of Central Gansu
作  者：
Chen Zhiming;Li Guang;Wu Jianguo;Yan Lijuan;College of Forestry, Gansu Agricultural University;Chinese Research Academy of Environmental Sciences;Agricultural College, Gansu Agricultural University;
关键词：
Loess Plateau in Central Gansu;;wheat;;yield;;soil nitrate nitrogen;;soil ammonium nitrogen;;soil water content
摘  要：
The aim is to study the best combination of irrigation and nitrogen application affecting the yield of wheat. Spring wheat‘Dingxi 42'was used as material. Water-nitrogen interaction method was adopted with four kinds of irrigation quantities(water depth per unit area 50 mm, 100 mm, 150 mm and 200 mm) and three fertilizer application methods(40 kg/hm~2 pure nitrogen fertilizer at jointing stage, 40 kg/hm~2 pure nitrogen fertilizer at flowering stage, 40 kg/hm~2 and 50 kg/hm~2 pure nitrogen fertilizer at jointing stage and flowering stage).(1) The yields of wheat were all the highest when the irrigation amount was 150 mm and the nitrogen fertilizer was 40 kg/hm~2 at flowering stage.(2) The water content of the three soil layers were the highest when the irrigation amount was 150 mm, the order of water content in three soil layers was tillering stage < flowering stage < jointing stage under different nitrogen application treatments.(3) The water consumption of wheat plant increased with the increase of irrigation, water use efficiency decreased with the increase of irrigation amount.(4) When irrigation amount was 150 mm at tillering stage, nitrate nitrogen content in three soil layers was the highest; at jointing stage, the content of ammonium nitrogen and nitrate nitrogen in 0-10 cm soil layer was the highest; at flowering stage, nitrate and ammonium nitrogen contents in three soil layers were the highest when the irrigation amount was 150 mm and pure nitrogen fertilizer was 40 kg/hm~2. The combination of 150 mm irrigation depth per unit area and 40 kg/hm~2 pure nitrogen fertilizer application at flowering stage is the most beneficial to the yield of spring wheat, soil available nitrogen content and water conservation in Loess Plateau of Central Gansu.

相似文章

导出引用
计量
文章访问数: 14
HTML全文浏览量: 0
PDF下载量: 0

所属期刊

推荐期刊

友情链接Friendly link
农业信息研究所Agricultural information institute 农业智能知识服务平台Agricultural intelligent knowledge service platform 农业学术服务平台Agricultural Knowledge Service System 中国知网CNKI 维普网VIP 万方WANFANG DATA
联系我们Contact us

电话Tell：010-82109652-808

邮箱E-mail：agrijournal@caas.cn

服务Service
关于我们About us 意见建议Opinions and suggest
版权说明Copyright
单位：中国农业科学院农业信息研究所 中国农学会 © 2017中国农业科学院农业信息研究所 ICP备案号：京ICP备09089781号-46