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中国农学通报 ›› 2014, Vol. 30 ›› Issue (15): 188-194.doi: 10.11924/j.issn.1000-6850.2013-2508

• 农学 农业基础科学 • 上一篇    下一篇

肥密水平对‘宁冬11号’灌浆特性及籽粒产量的影响

张维军 袁汉民 陈东升 王小亮 亢玲 何进尚 惠建   

  • 收稿日期:2013-09-24 修回日期:2013-10-21 出版日期:2014-05-25 发布日期:2014-05-25
  • 基金资助:
    宁夏农业科技工程重大专项“冬小麦新品种选育及宁夏超级小麦研究”(KGZ-16-07-01);宁夏自然科学基金项目“引黄灌区冬小麦高产群体结构及小穗退化规律研究”(NZ1068)。

Effect of Fertilization Dose and Sowing Density on Grain-filling and Yield in ‘Ningdong11’

  • Received:2013-09-24 Revised:2013-10-21 Online:2014-05-25 Published:2014-05-25

摘要: 为明确施氮量和种植密度对冬小麦灌浆期生理特性的影响,采用二因素裂区试验设计,对‘宁冬11号’冬小麦籽粒灌浆特性、粒重及产量进行了研究。结果表明:施氮量对灌浆持续期有明显影响,尤其N4处理(360 kg/hm2)灌浆持续期明显增加,但同时造成小麦晚熟;施氮量对产量影响显著,以N3 (270 kg/hm2)处理产量最高;对灌浆速率和粒重影响不明显。种植密度对灌浆持续期没有明显影响,但对灌浆速率、粒重和产量影响较大:低密度处理(450×104粒/hm2),粒重最大,灌浆速率也较高,但产量较低;中密度处理(600×104粒/hm2)灌浆速度快,产量最高。综合来看,在宁夏引黄灌区,当播种密度为600×104粒/hm2、施氮量270 kg/hm2时对冬小麦灌浆最为有利,并且产量最高,可达到12178.36 kg/hm2

关键词: 长短期平衡, 长短期平衡

Abstract: In order to explicit application and planting density on the winter wheat grouting period of physiological characteristics, the influence of the split plot experiment design using two factors, the‘Ningdong 11’winter wheat grain filling characteristics, grain weight and yield was studied. Results showed that N application has obvious influence on filling duration, especially N4 interchange processing (360 kg/hm2) filling duration increased, but at the same time cause wheat variety; N application on yield notable influence to N3 (270 kg/hm2) with the highest yield. No obvious influence on the filling rate and grain weight. Planting density on the filling duration had no significant effect, but the larger impact on filling rate, grain weight and yield, low density treatment (450×104 spike/hm2), grain weight, the largest filling rate was high, but the yield was relatively low. Medium density (600×104 spike/hm2) grouting speed, the highest yield. Together, in the irrigation area of Ningxia were, when the planting density of 600×104 spike/hm2, N application rate of 270 kg/hm2 on wheat grouting was the most favorable, and the highest yield, could be up to 12178.36 kg/hm2.