| Effect of different fertilization way on yield and protein content of winter wheat under water-saving cultivation system |
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| DOI：10.7606/j.issn.1000-7601.2007.02.10 |
| Key Words: winter wheat nitrogen fertilizer protein protein composition basal nitrogen fertilization |
| Author Name | Affiliation | | ZHANG Xia | China Agricultural university, Beijing 100094, China | | LUO Yan-qing | China Agricultural university, Beijing 100094, China | | ZHANG Sheng-quan | China Agricultural university, Beijing 100094, China | | WU Yong-cheng | China Agricultural university, Beijing 100094, China | | WANG Min | China Agricultural university, Beijing 100094, China | | WANG Zhi-min | China Agricultural university, Beijing 100094, China |
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| Abstract: |
| Winter wheat Jinan 17 and Shijiazhuang 8 were used as plant materials to study the effects of rates(157.5,226.5,295.5 kg/hm2) and time of nitrogen application(basal nitrogen application before sowing,split nitrogen application before sowing and at jointing respectively) on yield,grain protein content,protein components content,nitrogen productivity and water use efficiency under water-saving cultivation system.The main results are as follows: The grain yield didn't significantly increase from 157.5 kg/hm2 to 295.5 kg/hm2 nitrogen level,or between basal nitrogen fertilizer and split nitrogen fertilizer at the same nitrogen level.The protein content and protein composition content were not significantly increased.The productivity of nitrogen and water use efficiency decreased from 157.5 kg/hm2 to 295.5 kg/hm2.The productivity of nitrogen was higher by basal fertilizer than by spit fertilizer at the 157.5 kg/hm2 nitrogen level,but lower by basal fertilizer than by split fertilizer at 226.5 kg/hm2 nitrogen level.The water use efficiency of Shijiazhuang 8 increased from 157.5 kg/hm2 to 295.5 kg/hm2,but there was no difference between different nitrogen fertilization ways at the same nitrogen level. |
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