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Summary: The scarcity of irrigation water is a major constraint for global crop production, especially for potato growth in arid and semiarid regions. Field experiments were conducted to study the effects of irrigation amount, fertilizer rate, and potato variety on potato yield, quality, and water and fertilizer productivity. The results showed significant impacts of these factors on potato growth, with Feiurita variety performing better than Xiapoti variety. The W2F3V1 and W3F2V1 treatments were recommended as the best water and fertilizer management in sandy loam soils in Northwest China.
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