不同滴灌技术水肥耦合在设施黄瓜上的应用分析

Application analysis of water and fertilizer coupling of different drip irrigation techniques on facility cucumber

  • 摘要: 【目的】 研究兰州市黄壤土条件下不同滴灌方式对设施黄瓜生长发育及产量的影响。 【方法】 分别运用滴箭式膜下滴灌、内镶贴片式膜下滴灌、垄膜沟灌及水肥耦合处理方式对设施黄瓜理化性状、产量和品质的影响,采用三因素三水平正交试验,利用方差和回归分析得出三因素影响的最优组合方案。 【结果】 三因素对植株理化性状的影响不大,但对其果实的理化性状、产量、品质和水分利用率极显著,影响顺序为滴灌模式>灌水量>施肥量。三因素最优组合为滴箭式膜下滴灌:灌水量66.13 m3/hm2,施肥量为25.2 kg/hm2,日光温室黄瓜的最高产量为256 942.52 kg/hm2【结论】 滴箭式膜下滴灌和内镶贴片式膜下滴灌均能在不影响设施黄瓜产量和品质的前提下,节水节肥节本,其中以滴箭式膜下滴灌效果最佳。

     

    Abstract: 【Objective】 To explore the effects of different drip irrigation methods on the growth and yield of cucumber under the condition of yellow loam in Lanzhou. 【Methods】 The effects of drip irrigation under mulch, under drip irrigation, under mulch with inner patch, under ridge film furrow irrigation and by water and fertilizer coupling treatment on physiological traits, yield and quality of cucumber were investigated.The orthogonal test of three factors and three levels was used, and the optimal combination scheme of three factors was obtained by variance analysis and regression. 【Results】 The three factors had little effect on the physical and chemical properties of the plant, but significant effects on the physical and chemical properties, yield, quality and WUE of the fruit.The order of influence was drip irrigation mode > irrigation amount > fertilization amount.The optimal combination of three factors was determined as follows:drip arrow drip irrigation under film, irrigation amount of 66.13 m3/hm2, fertilization amount of 25.2 kg/hm2, and the highest yield of cucumber in solar greenhouse was 256,942.52 kg/hm2. 【Conclusion】 Both drip arrow drip irrigation and inlaid patch drip irrigation saved water and fertilizer and cost as well without affecting the yield and quality of cucumber.Among them, drip-arrow drip irrigation under film had the best effect and was worthy of promotion.

     

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