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在旱棚控制条件下研究了渭北西部旱源肥料（Ｎ、Ｐ２Ｏ５、有机肥）和水分（模拟降水）对谷子生长发育的影响。根据研究结果建立了谷子生物学产量、籽粒产量和根系发育的水肥耦合模型，表明在渭北西部旱塬条件下肥料的作用比水分大，渭北旱塬谷子生长发育和产量形成的限制因素是肥料，其次是水分。肥料和水分为正交互作用。
The effects of arid source fertilizers (N, P2O5, organic manure) and water (simulated precipitation) on the growth and development of millet were investigated under the control of the upper reaches of the weir. Based on the results of the study, the coupling model between the yield and grain yield of grain and root growth was established. The results showed that the effect of fertilizer was greater than that of water in the dry land of Weibei, and the limiting factor of the growth and yield formation of the grain in Weibei dry land was Fertilizer, followed by water. Fertilizers and water are orthogonal interactions.