叶面肥对高海拔地区青稞农艺性状及产量的影响

目的]探明叶面肥对高海拔地区青稞农艺性状及产量的影响。方法]采用随机区组设计,在青稞不同生育期施磷酸二氢钾、大肥王、利丰硼3种营养型肥及氨基酸水溶液生物型肥,研究其对青稞产量、生育期及生长指标的影响。结果]4种叶面肥对青稞产量的构成因子均有促进作用,营养型叶面肥中以利丰硼增产效果最为显著(P0.05);氨基酸水溶液肥中以苗期、孕穗期、灌浆期各喷施1次的处理效果最为显著(P0.01)。结论]在确保外部营养正常供应的基础上,分别在灌浆期和孕穗期各喷施1次氨基酸水溶液叶面肥对青稞植株的生长及产量的增加促进效果最为明显。

Effects of Foliar Fertilizer on Agronomic Traits and Yield of Hulless Barley in High Altitude Areas

Objective] To study the effects of foliar fertilizer on agronomic traits and yield of hulless barley in high altitude areas.Method] Randomized block design was used to study the effect of KH2 PO4 , Dafeiwang Fertilizer, and Lifeng Boron Fertilizer and amino acid aqueous solu-tion on the yield, growth period and growth indicators of hulless barley.Result] Four types of folia fertilizer had promotion function on constitu-ents of hulless barley yield;Lifeng Boron Fertilizer showed most significant influence on yield increase (P<0.05);amino acid aqueous solution had most significant influence in seedling stage, boot stage, and grain filling stage with one time of spray (P<0.01).Conclusion] On the basis of ensuring normal supply of external nutrients, it will receive most remarkable effect in growth and yield increase of hulless barley through apply-ing amino acid aqueous solution one time in grain filling stage and boot stage respectively.