陕北黄土高原旱作农业区谷子肥料试验研究

目的]探索黄土高原旱作农业区谷子的最佳(合理)施肥量。方法]采用随机区组设计,通过田间小区试验,研究氮、磷肥不同配比及不同施用时期对谷子农艺性状、干物质构成及产量性状的影响。结果]氮肥和磷肥施入量的增加均有利于谷子植株的生长,可促进谷子干物质的积累及产量的增加。结论]以基肥施尿素163 kg/hm2、过磷酸钙1 875 kg/hm2,追肥施尿素620 kg/hm2的处理效果最好。

Millet Fertilizer Test in Dry Farming Region of Northern Shaanxi Plateau

Abstratc Objective] To explore the optimal fertilizing amount for millet in dry farming region of Northern Shaanxi Plateau .Method]Ran-domized block design was adopted .Field plot test was used to research the effects of nitrogen to phosphorus ratio and application time on millet agronomic traits, dry matter component and yield traits. Result] the increased amount of nitrogen and phosphorus fertilizers promoted the accu -mulation of millet dry matter and the yield increase.Conclusion]163 kg/hm 2basal application of urea, 1 875 kg/hm 2 calcium superphosphate, and 620 kg/hm2 topdressing urea had the best treatment effects.