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１９９４～１９９５年在隆德试区对春小麦进行了氮、磷肥效及以肥调水作用试验研究。结果表明：在干旱条件下，增施氮肥的以肥调水作用明显高于磷肥；在生产上推荐经济施肥量为：施Ｎ１０６～１４６ｋｇ／ｈｍ２、Ｐ２Ｏ５３９～５５ｋｇ／ｈｍ２。
In 1994 and 1995, the experiment of nitrogen and phosphorus fertilizers and water-adjusting effect on spring wheat were carried out in Lundian experimental area. The results showed that under the condition of drought, the effect of increasing N fertilizer on water and fertilizer was obviously higher than that on phosphate fertilizer. The recommended economic fertilizer amount was N106 ~ 146kg / hm2 and P2O539 ~ 55kg / hm2.