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高寒半干旱区春小麦田施肥及水肥耦合效应研究

标题: 高寒半干旱区春小麦田施肥及水肥耦合效应研究
英文标题: STUDY OF THE EFFECT OF FERTILIZER APPLICATION AND WATER FERTILIZER COUPLING ON SPRING WHEAT FIELD IN COLD HIGHLAND SEMIARID REGION
作者: 王殿武,刘树庆,文宏达,高如泰,谢建治
英文作者: WANG DIANWU LIU SHUQING WEN HONGDA GAO RUTAI XIE JIANZHI
出版时间: 1999-01-01
机构: 河北农业大学
关键词: 施肥,草甸栗钙土,春小麦,水分利用效率,肥料利用率
英文关键词: FERTILIZER APPLICATION,MEADOW CHESTNUT SOIL,SPRING WHEAT,WATER USE EFFICIENCY,FERTILIZER USE EFFICIENCY
刊名: 中国农业科学
英文刊名: SCIENTIA AGRICULTURA SINICA
ISSN: 0578-1752
卷号: 005
基金: ^A国家科技支撑计划项目^B^D1
页码: 62-68
分类号: S512.106
摘要: 高寒半干旱区中壤质草甸栗钙土农田施肥及水肥耦合效应明显,氮磷合理配施增产58.5% ~74.9% ,作物水分利用效率提高1.98~2.49KG?M M - 1?HA- 1.供水量230~350M M 下氮磷配施改善了地上部生物学性状,且以供水量350M M N120P60 最佳,但水分是限制春小麦生产力的主导因素,而土壤养分次之.供水量290M M N120P120 处理作物水分利用效率最高,可达7.69KG?M M - 1?HA- 1,供水量350M M N60P120 氮肥利用率最高,籽粒和地上部植株分别为38.95% 和68.80% ,而供水量290M M N120P60 磷肥利用率最高,籽粒和地上部植株分别为15.83% 和27.88% ,水肥合理耦合有效地提高了作物产量及水肥利用率.
英文摘要: The effect of fertilizer application and water fertilizer coupling was significant on the medium loam meadow chestnut soil in cold highland semiarid region. The concerted use of nitrogen and phosphate fertilizer increased the yield by 58.5 to 74.9 percent,and made the water use efficiency to raise 1.98 to 2.49 kg?mm -1 ?ha -1 . Under the condition of water supply 230 to 350mm,the concerted use of nitrogen and phosphate fertilizer improved the biological characteristics of areial part,and that under...