山西农业大学学报（自然科学版）2017，Vol.37Issue(7)：477-481,5.
播期和施氮量互作对小麦产量性状的影响
Effects of sowing date and nitrogen application rate on yield traits of wheat
裴艳婷 1肖磊 2姚怀昌3
作者信息
- 1. 德州市农业科学研究院,山东德州253000
- 2. 邯郸市农业科学院,河北邯郸056001
- 3. 德州市良种场,山东德州253000
- 折叠
摘要
Abstract
[Objective]In order to ensure the increase of wheat yield,the low investment of nitrogen was achieved through the adjustment of sowing time,the regularity and mechanism of sowing date and nitrogen fertilizer on wheat yield was revealed for formulatiug the appropriate regional wheat productivity and low nitrogen fertilizer suitable sowing date.[Methods]From 2014 to 2015 years,using JIMai19(J19) as test material,effects of sowing date and nitrogen application rate on yield and agronomic traits of wheat was researched in Dezhou Municipal Academy of agricultural field.[Results]The results showed that:the wheat yield and agronomic traits were different along with the difference of combination between sowing date and nitrogen application rate.The yield decreased with the delay of sowing date when the same nitrogen level.Sowing date in the same conditions,the yield of wheat with nitrogen fertilizer varied greatly,the treatment of early sowing and low nitrogen was significantly higher than that in high nitrogen treatment,and the yield of late sowing was significantly lower than that of the high nitrogen treatment,the yield of middle sowing in different nitrogen treatments had no significant effect.Correlation and path analysis showed that the yield increased and nitrogen fertilizer reduced because grain numbers of hectare improved in the condition of sowing date and nitrogen interaction.The spike rate increased for the foundation of grain numbers of hectare,the corresponding changes of spike length,spikelet number and spikelet number along with the increasing of grain numbers of hectare,they also play an important role in yield.[Conclusion]The wheat yield increased under sowing and nitrogen interaction through the improvement of grain numbers of hectare.The effect of N1Dh treatment was the best (i.e.:sowing date in October 5th + nitrogen application rate 103.5 kg·hm-2),it not only achieved low nitrogen fertilizer inputs,but also increased the yield of wheat.关键词
播期/施氮量/小麦/产量/农艺性状Key words
Sowing Date/Nitrogen Application Rate/Wheat/Yield/Agronomic Traits分类
农业科技引用本文复制引用
裴艳婷,肖磊,姚怀昌..播期和施氮量互作对小麦产量性状的影响[J].山西农业大学学报（自然科学版）,2017,37(7):477-481,5.
