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Position: Home > Articles > Effect of Different Ratios of N,P and K Fertilizers on Yield of Asparagus Lettuce in Hexi Corridor High-altitude Cold Areas Northern Horticulture 2013 (9) 194-195

河西走廊高海拔冷凉区莴笋氮磷钾施肥效应研究

作  者:
张玉鑫;王志伟;王晓巍;张俊峰
单  位:
甘肃省农业科学院蔬菜研究所
关键词:
莴笋;施肥;产量;利润;高海拔冷凉区
摘  要:
在甘肃省河西走廊高海拔冷凉区以茎用莴苣"太原笋"为试材,采用"311-A"拟饱和最优回归设计,研究了氮磷钾施肥对莴笋生长及品质的影响.结果表明:莴笋施肥量为氮肥(N)20.0kg/667m2,磷肥(P2O5)4.7kg/667m2,钾肥(K2O)7.3kg/667m2时,最高产量为5 698.0kg/667m2.莴笋最佳经济施肥量为氮肥(N)20.0kg/667m2,磷肥(P2O5)7.09kg/667m2,钾肥(K2O)7.17kg/667m2,最佳利润为4 358.3元/667m2.
译  名:
Effect of Different Ratios of N,P and K Fertilizers on Yield of Asparagus Lettuce in Hexi Corridor High-altitude Cold Areas
单  位:
Institute of Vegetable Science,Gansu Academy of Agricultural Sciences,Lanzhou,Gansu 730070
关键词:
asparagus lettuce%fertilizer%yield%profit%high-altitude cold area
摘  要:
Taking Lactuca sativa 'Taiyuansun' in Gansu Hexi corridor high-altitude cold area as material,'311-A' regression design was used to study the effect of different ratios of N,P,K fertilizers on yield of asparagus lettuce.The results showed that with maximum production 5 698.0 kg/667m2 as the goal,the optimal combination of N,P and K were respectively 20.0 kg/667m2,4.7 kg/667m2 and 7.3 kg/667m2.The optimum economy fertilizing amount of N,P and K were respectively 20.0 kg/667m2,7.09 kg/667m2 and 7.13 kg/667m2,and the optimal profit was 4 358.3 yuan/667m2.

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