摘要
通过对"大垄双行覆膜+膜下滴灌+垄向区田"和"行间覆膜+露地滴灌+垄向区田"两种集成模式条件下的玉米产量、经济效益以及水分利用效率的研究,结果表明:"大垄双行覆膜+膜下滴灌+垄向区田"集成模式从产量、经济效益和水分利用效率均好于"行间覆膜+露地滴灌+垄向区田"集成模式;利用RAGA-PPC模型对集成模式进行评价,各个指标的贡献率大小顺序依次为:产值,经济效益,水分利用率,玉米产量和投入费用,其中B2处理表现最好,为抗旱节水提出了新的思路。
Research is done on maize yield,economic benefits and WUE by means of the 2 integration models,which are ＂film-mulching of double line width ridge＋drip irrigation under mulch＋ridge tillage＂ and ＂covering film between furrows＋ drip irrigation＋ridge tillage＂.The results show that ＂film-mulching of double line width ridge＋drip irrigation under mulch＋ridge tillage＂ are better than another integration model in maize yield,economic benefits and WUE;evaluation on integration models with RAGA-PPC model,getting sequence of contribution rate of each index is output value,economic benefit,WUE,maize yield and input cost,B2 is best in all treatments,and which provides a new method for water saving and drought.
出处
《中国农村水利水电》
北大核心
2011年第3期29-32,共4页
China Rural Water and Hydropower
基金
国家科技支撑计划项目(2006BAD29B01
2007BAD88B01)
黑龙江省重点科技攻关项目(GB06B106-3)
东北农业大学科技创新团队项目(CXT003-2-3)
关键词
滴灌
覆膜
经济效益
水分利用效率
drip irrigation
film mulching
economic benefits
WUE
