ZHANG Yu-xin,WANG Zhi-wei,WANG Xiao-wei,et al.Effect of Different Ratios of N，P and K Fertilizers on Yield of Asparagus Lettuce in Hexi Corridor High-altitude Cold Areas[J].Northern Horticulture,2013,37(09):194-195.
河西走廊高海拔冷凉区莴笋氮磷钾施肥效应研究
- Title:
- Effect of Different Ratios of N，P and K Fertilizers on Yield of Asparagus Lettuce in Hexi Corridor High-altitude Cold Areas
- 文章编号:
- 1001-0009(2013)09-0194-02
- Keywords:
- asparagus lettuce; fertilizer; yield; profit; high-altitude cold area
- 分类号:
- S 644.6
- 文献标志码:
- A
- 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）20.0 kg/667m2，磷肥（P2O5）4.7 kg/667m2，钾肥（K2O）7.3 kg/667m2时，最高产量为5 698.0 kg/667m2。莴笋最佳经济施肥量为氮肥（N）20.0 kg/667m2，磷肥（P2O5）7.09 kg/667m2，钾肥（K2O）7.17 kg/667m2，最佳利润为4 358.3元/667m2。
- Abstract:
- 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.
参考文献/References:
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备注/Memo
第一作者简介：张玉鑫(1980-)，男，硕士，助理研究员，现主要从事蔬菜栽培等研究工作。E-mail:zhangyx-nky@163.com.