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高寒半干旱区油菜与豆科牧草混播草地施肥效应

标题: 高寒半干旱区油菜与豆科牧草混播草地施肥效应
英文标题: EFFECT OF FERTILIZER APPLICATION ON RAPE LEGUMINOUS PASTURE IN COLD SEMI ARID REGION OF HIGH ELEVATION
作者: 王殿武,文振海,文宏达,杜连军
英文作者: WANG DIANWU
出版时间: 1998-01-01
机构: 河北农业大学
关键词: 混播草地,施肥效应,水分利用效率
英文关键词: RAPE LEGUMINOUS MIXTURE,EFFECT OF FERTILIZATION APPLICATION,UTILISATION EFFICIENCY OF MOISTURE
刊名: 草业学报
英文刊名: ACTA PRATACULTURAL SCIENCE
ISSN: 1004-5759
卷号: 004
基金: ^A国家科技支撑计划项目^B^D1
页码: 26-32
分类号: S812.4
摘要: 油菜与豆科牧草混播草地施肥效应表明,氮磷合理配施促进土壤水分消耗,干草、植物量和施肥产投比显著提高.坡梁地最高植物产量施肥量N为78.06KG/HM2,P2O5为61.15KG/HM2,最高干草产量施肥量N为76.65KG/HM2,P2O5为57.29KG/HM2,增产效果N>P2O5;旱滩地最高植物产量施肥量N为58.33KG/HM2,P2O5为55.68KG/HM2,最高干草产量施肥量N为53.60KG/HM2,P2O5为59.11KG/HM2,增产效果P2O5>N;且氮磷具有明显的正交互效应.氮磷合理配施还显著提高了水分利用效率,坡梁地和旱滩地分别提高3.05和2.67KG/(MM.HM2).
英文摘要: This trial of fertilizer application to mixed rape leguminous pastures was carried out in Zhangbei county of Hebei province. It was shown that the maximal plant biomass on mountain slopes was achieved at the application norm: N 78.06 kg/ha and P 2O 5 61.15 kg/ha, while the maximal hay yield was obtained at the norm: N 76.65 kg/ha plus P 2O 5 57.29 kg/ha. In both cases the effect of N in increasing production was more obvious than P. On flat dry lands, on the other hand, the maximal biomass and hay...