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高寒半干旱区莜麦田施肥效应

标题: 高寒半干旱区莜麦田施肥效应
英文标题: THE EFFECT OF FERTILIZATION FOR NAKED OAT IN SEMIARIDREGION WITH COLD AND HIGH ELEVATION
作者: 王殿武,刘树庆,文宏达,谢建治,高如泰
英文作者: WANG DIANWU,LIU SHUQING,WEN HONGDA,XIE JIANZHI,GAO RUTAI
出版时间: 1999-01-01
机构: 河北农业大学
关键词: 施肥,莜麦,水分利用效率,高寒半干旱区
英文关键词: FERTILIZER,N AHED OAT,WATER USE EFFICIENCY,SEMIARID REGION WITH COLD AND HIGH ELE-VATION
刊名: 河北农业大学学报
英文刊名: JOURNAL OF AGRICULTURAL UNIVERSITY OF HEBEI
ISSN: 1000-1573
卷号: 003
基金: ^A国家科技支撑计划项目^B96-04-004-03^D1
页码: 1-4
分类号: S147.5
摘要: 高寒半干旱区土壤缺氮贫磷,增施氮磷肥能显著提高莜麦产量,且氮磷间具有明显的正交互效应,氮磷配合施用有机肥是提高作物产量的有效措施.单施无机肥时N,P_2O_5经济施用量分别为79.26~86.80KG?HM~-2和58.87~65.09KG?HM~-2,施有机肥22500KG?HM~-2时则分别为54.18~58.50KG?HM~-2和27.14~29.LLKG?HM~-2.低量有机肥22500KG?HM~-2与氮磷配施使莜麦水分利用效率与降水利用效率分别较未施肥提高3.50~5.08KG?MM~-1?HM~-2和4.41~6.88KG?MM~-1?HM~-2;高量有机肥45000KG?HM~-2与氮磷配施则分别增大4.54~6.66KG?MM~-1?HM~-2和6.01~8.23KG?MM~-1?HM~-2.氮磷与有机肥配施是提高作物水分利用效率与充分挖掘降水生产潜力的有效途径.
英文摘要: In accordance with soil nitrogen and phosphate deficiency in semiarid region with coldand high elevation, nitrogenous fertilizer and phosphate fertilizer coupling increased notably theyield of naked oat,and there was an obvious interaction effect. The application of N, P fertilizerin combination with organic fertilizer was an effective measure of increasing crop yield. WhenN, P fertilizer applied alone, the econom ic rational N and P fertilizer rates were N = 79. 26 ~ 86. 80kg'' hm - 2, P2O5 = 58. 87 ~ 65.09...