氮锌配施对不同冬小麦品种产量及锌营养的影响  

Effect of combination use of Zn and N fertilizers on yield and Zn content in winter wheat

作　　者：陆欣春[1] 田霄鸿[1] 杨习文[1] 买文选[1,2] 赵爱青[1] 保琼莉[1,3] 

机构地区：[1]西北农林科技大学资源环境学院农业部黄土高原农业资源与环境修复重点开放实验室,杨凌712100 [2]中国科学院新疆生态与地理研究所,乌鲁木齐830011 [3]中国农业大学资源与环境学院,北京100193

出　　处：《中国生态农业学报》2010年第5期923-928,共6页Chinese Journal of Eco-Agriculture

基　　金：国家自然科学基金面上项目(40971179);教育部新世纪优秀人才支持计划(NCET-06-0866)资助

摘　　要：为比较石灰性土壤氮锌配施对不同小麦品种生长及锌营养的影响,选10种本地主要种植小麦品种,进行连续两年的田间试验,测定小麦产量及锌含量。结果表明,在石灰性土壤上单施锌肥和氮锌配施对小麦产量、籽粒锌含量的影响因品种而异。单施锌肥及氮锌配施处理可显著增加土壤有效锌含量,但单施锌肥处理仅增加"西杂1号"、"武农148"、"郑麦9023"籽粒锌含量;氮锌配施增加除"小偃22"外其余9种供试小麦品种籽粒锌含量,增幅为7.3%～54.7%。单施锌肥对小麦锌累积量增加的效果不明显;氮锌配施可显著增加小麦地上部锌累积量,两季分别增加6.5%、29.8%。单施氮肥可显著增加小麦锌吸收,但其主要累积在小麦茎叶部。在石灰性土壤上,单施锌肥虽显著增加了土壤有效锌含量,但对小麦产量及籽粒Zn含量增加有限,氮锌肥配施可取得较好效果。A two-year experiment was conducted to investigate the effects of combination use of Zn and N fertilizers on growth and Zn content in 10 varieties of winter wheat in calcareous soils.Results show that the effects of sole application of Zn fertilizer and combination use of Zn and N fertilizers on yield and grain Zn content are significantly different among various varieties of winter wheat.Soil content of DTPA-Zn significantly increases in Zn or Zn and N fertilizers treatments.Zn significantly increases grain Zn content in ＂Xiza No.1＂,＂Wunong148＂,and ＂Zhengmai 9023＂.Application of Zn and N increases grain Zn content by 7.3%～54.7% in 9 genotypes of wheat,excluding ＂Xiaoyan 22＂.Zn fertilizer application does not significantly increase Zn uptake of wheat.However,the combination application of Zn and N increases Zn shoot content by 6.5% in the first year and by 29.8% in the second year of the experiment.N fertilization remarkably increases Zn uptake of wheat,but Zn accumulation is mainly in stems and leaves.In calcareous soils,Zn fertilizer application significantly increases soil DTPA-Zn content.However,the effect of Zn on yield and grain Zn content is insignificant.Combination use of Zn and N fertilizers in calcareous soils increase wheat yield and grain Zn content.

关 键 词：小麦 氮锌配施 锌含量 锌累积量 锌转运率 石灰性土壤 

分 类 号：S143.72[农业科学—肥料学] Q945.12[农业科学—农业基础科学]