施氮方式对中筋小麦陕农229产量及品质的影响

Effects of Nitrogen Application Methods on Grain Yield and Quality in Middle Gluten Wheat Shannong 229

以优质中筋小麦陕农229为材料,于江苏淮北麦区研究氮肥不同施用量和基追比对小麦籽粒产量和品质的影响。结果表明:适当增加施氮量或增加拔节期追氮比例可显著提高小麦籽粒产量,并改善籽粒品质。中筋小麦陕农229采用施氮量262.5kg·hm-2、基追比6∶4、5∶5和4∶63种施氮方式,产量可达7200kg·hm-2以上,各项品质指标符合优质中筋小麦要求,能较好地实现优质与高产的协调统一。施氮量262.5kg·hm-2、基追比5∶5的施氮方式,产量高、品质较好且安全生产性好,是中筋小麦实现优质高产的最佳氮肥运筹方式。

The middle gluten wheat Shannong 229 was used as an experimental material to study the effects of nitrogen application methods on grain yield and quality. The results indicated that on the condition that the applied N amount and the proportion of topdressing N at jointing stage were befittingly raised, grain yield was increased significantly and quality was improved. By the method of 262.5 kg·hm^(-2) of N applied and 50% topdressed at jointing stage, high yield and good quality could be achieved and coordinated, and it was considered as a optimal N application method for middle gluten wheat.