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  • Title: [Effects of graft and nitrogen supply level on water consumption and water use efficiency of solar greenhouse cucumber under traditional irrigation].
    Author: Chen XY, Wang L, Wang YQ, Sun HM, Ren HZ.
    Journal: Ying Yong Sheng Tai Xue Bao; 2008 Dec; 19(12):2656-60. PubMed ID: 19288719.
    Abstract:
    An experiment was conducted in solar greenhouse to study the effects of graft and different nitrogen (N) supply levels (0, 110, and 331 kg k x hm(-2)) on the water consumption and water use efficiency (WUE) of cucumber (Cucumis sativus L.) under traditional irrigation. The results showed that when topdressing 331 kg N x hm(-2), the water consumption of grafted cucumber was the highest, being 3350 m3 x hm(-2) and 2181 m3 x hm(-2) in winter-spring and autumn-winter cropping, so did the WUE, being 27.2 kg x m(-3) and 36.9 kg x m(-3), respectively. Comparing with those of self-rooted cucumber, the water consumption, economic yield, and WUE of grafted cucumber under the same N topdressing levels were increased by 3%-6%, 28%, and 20.9%, respectively, and the water consumption and WUE of grafted cucumber were increased with increasing N supply level. The water consumption of self-rooted cucumber also increased with increasing N supply level, but its WUE was the highest when the N supply was 110 kg graft could markedly promote the water consumption and WUE of cucumber, and the effect was more markedly with increasing N supply level. To increase N supply could also markedly promote the water consumption of self-rooted cucumber, but the WUE would be lower when excessive N was supplied.
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