摘要
采用日光温室田间小区试验的方法研究滴灌施肥方式对设施蔬菜产量的影响以及节水节肥效果。结果表明,在不影响蔬菜产量的情况下,滴灌施肥方式相比常规施肥具有明显的节水节肥效果。滴灌施肥条件下,黄瓜和番茄均能达到目标产量,与常规施肥处理相比,增产幅度不明显;两茬蔬菜共节约水量2387m3·hm-2,节水24.7%;其中黄瓜和番茄全生育期分别节水1720m3·hm-2和667m3·hm-2。一个轮作周期内两茬蔬菜氮肥(N)、磷肥(P2O5)、钾肥(K2O)分别节约了22.7%,44.0%,30.8%。
Field experiment was conducted in greenhouse to study the effect of yield, water and fertilizer saving in cucumber and tomato.The results showed that the drip fertigation could increase vegetable yield, decrease water irrigation and fertilizer application compared with the conventional fertilization.The water saving of cucumber and tomato experiments under drip fertigation were 1 720 m 3 ·hm -2 and 667 m 3 ·hm -2 ,giving a total water saving rate of 24%.Compared with the conventional fertilization treatment,the fertilizer saving of N,P 2 O 5 and K 2 O under drip fertigation treatment were 22.7%,44.0%,30.8% respectively.
出处
《天津农业科学》
CAS
2013年第8期25-27,共3页
Tianjin Agricultural Sciences
基金
农业部农业环境生态保护项目(2110402-201258)
中加合作(IPNI)项目(Tianjin-2012)
天津市农业科技成果转化与推广项目(201203030)
关键词
设施蔬菜
滴灌施肥
产量
节水
节肥
facility vegetable
drip fertigation
yield
water saving
fertilizer saving
