农学学报Issue(3)：15-19,5.
氮肥底追比对不同小麦品种生长发育及产量的影响
Effect of Nitrogen Topdressing Ratio on the Growth and Yield in Different Wheat Cultivars
摘要
Abstract
In order to provide a theoretical for high yield and quality of wheat, using‘Yaomai 16’,‘Anmai 16’ and‘Taishan 4241’as materials, the application of pure N 270 kg/hm2 and 3:7, 5:5, 7:3 effects of nitrogen topdressing on the bottom, study different varieties of wheat growth and yield. The results showed that,‘Yaomai 16’and‘Anmai 16’yield was the highest in 3:7 treatment, yield were 6839.93 kg/hm2 and 6202.2 kg/hm2, the highest yield of‘Taishan 4241’under the treatment of 5:5, up to 7629.23 kg/hm2. The yield of‘Taishan 4241’was the highest,‘Anmai 16’was the lowest. Under different nitrogen topdressing ratio, SPAD values of‘Taishan 4241’'s flag leaf were the highest, and topdressing ratio under 3:7 treatment showed the highest,‘Yaomai 16’and‘Anmai 16’in 5:5 treatment showed the highest. The filling time relative to the filling rate is more easily influenced by nitrogen fertilizer topdressing ratio,‘Yaomai 16’and‘Taishan 4241’'s grouting process of impact was greater than the‘Anmai 16’,‘Taishan 4241’grain filling duration and grain filling rate were higher, functional leaf decay slower , production capacity is strong, can provide more nutrients as the kernel development, so as to provide the material guarantee for higher yield.关键词
氮肥底追比/小麦/生长发育/产量Key words
Nitrogen Topdressing Ratio/Wheat/Growth/Yield分类
农业科技引用本文复制引用
张晶,王姣爱,党建友,裴雪霞,王小泰,张定一..氮肥底追比对不同小麦品种生长发育及产量的影响[J].农学学报,2015,(3):15-19,5.基金项目
国家现代农业产业技术体系建设专项“山西综合试验站”(CARS-03-2-7)；国家自然科学基金“土壤农田磁化率与重金属微量元素相关性及空间格局的研究”(31272258)。 （CARS-03-2-7）
