日光温室冬春茬黄瓜滴灌的肥水优化管理

李若楠,黄绍文,史建硕,王丽英,唐继伟,张怀志,袁硕,翟凤芝,任燕利,郭丽

Optimization Management of Water and Fertilization for Winter-Spring Cucumber Under Greenhouse Drip Irrigation Condition

RuoNan LI,ShaoWen HUANG,JianShuo SHI,LiYing WANG,JiWei TANG,HuaiZhi ZHANG,Shuo YUAN,FengZhi ZHAI,YanLi REN,Li GUO

表6 滴灌肥水用量对冬春茬黄瓜不同阶段0—40 cm土体硝态氮含量的交互效应分析（mg·kg-1）

Table 6 Soil nitrate nitrogen contents at 0—40 cm soil depths as affected by the interaction of water and fertilizer rates at various growing stages (mg·kg-1)

处理 Treatment 0—20 cm土层 0- 20 cm soil layer 20—40 cm土层 20-40 cm soil layer 产瓜盛期 Vigorous fruiting stage 产瓜末期 Late fruiting stage 产瓜末期 Late fruiting stage 灌水量 Irrigation rate W1 38.7 a 79.0 a 52.9 a W2 28.5 b 43.3 b 31.3 b W3 24.3 b 25.3 c 23.3 c 施肥量 Fertilization rate F1 17.9 C 27.6 C 22.7 C F2 28.1 B 47.9 B 34.2 B F3 45.6 A 72.2 A 50.6 A 灌水量×施肥量 Irrigation rate×Fertilization rate F1 W1 19.7 cd 47.9 c 30.7 c W2 17.9 cd 19.8 e 19.7 d W3 15.9 d 14.9 e 17.6 d F2 W1 34.1 b 74.4 b 50.9 b W2 28.9 bc 41.9 cd 29.7 c W3 21.2 cd 27.3 de 21.8 cd F3 W1 62.4 a 114.7 a 77.0 a W2 38.7 b 68.1 b 44.4 b W3 35.6 b 33.7 cde 30.6 c P值 P value W <0.01** <0.01** <0.01** F <0.01** <0.01** <0.01** W×F 0.02* 0.02* <0.01**