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首页> 外文期刊>Acta Horticulturae >Improving smallholder dry season vegetable production through increased water productivity with low cost drip irrigation technology in Cambodia.
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Improving smallholder dry season vegetable production through increased water productivity with low cost drip irrigation technology in Cambodia.

机译：柬埔寨通过低成本的滴灌技术提高水生产率，提高了小农旱季蔬菜的产量。

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In rainfed cropping systems limited water supply is a major constraint for increased crop production during the dry season. The use of affordable drip irrigation systems can increase crop yield, water use efficiency, and labor productivity in dry season vegetable production. Farmer participatory research was conducted in Cambodia during the 2008 dry season to evaluate the performance and benefits of a low-cost drip irrigation system for improving small-scale vegetable production. The effect of integrating improved soil nutrient management through fertilizer deep placement on crop yield and economic returns were determined for selected vegetable crops. Compared with traditional practice of hand-watering, drip irrigation increased yield of chili (Capsicum annuum), cucumber (Cucumis sativus), and eggplant (Solanum melongena) by almost 50%, but reduced average net income by 25%. Drip irrigation decreased water use by 33%, and increased water use efficiency by 63% and labor productivity by 74%. The use of fertilizer deep placement with drip irrigation resulted in higher yield (18%) compared with commercial NPK fertilizer irrespective of irrigation methods. Significant response was shown in yard-long bean (Vigna unguiculata var. sesquipedales) with 35% yield increase and 50% increase in net income. Under drip irrigation the use of fertilizer deep placement reduced water use by 48%, increased water use efficiency by 70% and labor productivity by 78%. This study demonstrated the potential benefit of low-cost drip irrigation and fertilizer deep placement for improving smallholder vegetable production in Cambodia during the dry season through higher yield, increased water use efficiency, and higher economic returns and labor productivity compared with farmers' traditional practice of hand-watering and fertilizer application.
机译：在雨养作物系统中，有限的水供应是干旱季节作物产量增加的主要制约因素。使用负担得起的滴灌系统可以提高旱季蔬菜生产中的作物产量，用水效率和劳动生产率。在2008年旱季期间，在柬埔寨进行了农民参与性研究，以评估低成本滴灌系统改善小规模蔬菜生产的性能和好处。通过选定的蔬菜作物，确定了通过深施肥料来整合改善土壤养分管理对作物产量和经济回报的影响。与传统的人工浇水相比，滴灌提高了辣椒（ Capsicum annuum ），黄瓜（ Cucumis sativus ）和茄子（ Solanum melongena ）减少了将近50％，但平均净收入减少了25％。滴灌使用水量减少了33％，用水效率提高了63％，劳动生产率提高了74％。与商业氮磷钾肥料相比，无论采用何种灌溉方式，在滴灌条件下深施肥料可提高产量（18％）。在长码豆（Vigna unguiculata 变种倍半花）中表现出显着的响应，产量增加了35％，净收入增加了50％。在滴灌条件下，深施肥料可减少48％的用水，提高70％的用水效率和78％的劳动生产率。这项研究表明，与农民的传统耕作方式相比，低成本滴灌和深施肥料通过提高产量，提高用水效率，提高经济效益和劳动生产率，可以在干旱季节改善柬埔寨小农蔬菜生产的潜在利益。人工浇水和施肥。

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