EFFECTS OF NITROGEN APPLICATION ON BIOMASS ACCUMULATION, REMOBILIZATION, AND SOIL WATER CONTENTS IN A RAINFED WHEAT FIELD
文献类型：期刊论文
| 作者 | Duan, Wenxue1; Yu, Zhenwen; Zhang, Yongli; Wang, Dong; Shi, Yu; Xu, Zhenzhu2
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| 刊名 | TURKISH JOURNAL OF FIELD CROPS
 |
| 出版日期 | 2014 |
| 卷号 | 19期号:1页码:25-34 |
| 关键词 | Dry matter accumulation dry matter remobilization grain yield N application rate rainfed winter wheat soil water content |
| ISSN号 | 1301-1111 |
| DOI | 10.17557/tjfc.45522 |
| 文献子类 | Article |
| 英文摘要 | This study examined the effects of different levels of N fertilization on dry matter accumulation and remobilization, and soil water contents in a rainfed winter wheat field. The experiments were carried out during growth seasons in 2009 2012 in a hilly region in Shandong Province, China. The N rates applied were 0 (N0, the control), 90 (N1), 120 (N2), 150 (N3), 180 (N4), and 210 (N5) kg N ha(-1). Our results showed that N fertilization significantly increased dry matter accumulation and post-anthesis assimilates compared with controls. At anthesis, total above-ground biomass increased significantly with increasing N rate up to 150 kg ha(-1) and then leveled off in the 2009 2010 and 2011 2012 growth seasons. However, the biomass in the 2010 - 2011 growth season did not vary with different N rates. At maturity, the accumulation of dry matter in vegetative organs significantly increased with increasing N rate up to 150 kg ha(-1) and then leveled off in all growth seasons. Of all the treatments, N3 and N4 had relatively higher total above-ground biomass at maturity. In contrast, dry matter remobilization efficiency showed a declining trend under increasing N rate. The higher post-anthesis assimilates and the contribution of pre-anthesis assimilates to grains were obtained at N rates of 150 and 180 kg ha(-1) in all growth seasons. Soil water contents in 0 - 120, 0 - 100, and 40 - 160 cm soil layers during each growth season decreased significantly with increasing N rate up to 150 kg ha(-1). The maximum grain yields were obtained under N rate of 150 kg ha(-1) in all growth seasons, with the highest grain yield being 7160.8 kg ha(-1) in the 2011 - 2012 growth season. Our results suggested that N fertilization at 150 kg N ha(-1) was optimal for grain production via promoting above-ground biomass and soil water consumption in deep soil layers. These results should help provide guidance for N fertilization management for optimal and sustainable wheat production in the said region. |
| 学科主题 | Agronomy |
| 出版地 | BORNOVA |
| WOS关键词 | DRY-MATTER ; GRAIN-YIELD ; USE EFFICIENCY ; WINTER-WHEAT ; DURUM-WHEAT ; MEDITERRANEAN ENVIRONMENT ; FERTILIZER APPLICATION ; SPRING WHEAT ; IRRIGATION ; DEFICIT |
| WOS研究方向 | Agriculture |
| 语种 | 英语 |
| WOS记录号 | WOS:000336774300005 |
| 出版者 | SOC FIELD CROP SCI |
| 资助机构 | National Natural Science Foundation of China [31171498] ; Technology System in Modern Wheat Industry, Chinese Ministry of Agriculture [CARS-3-1-19] |
| 源URL | [http://ir.ibcas.ac.cn/handle/2S10CLM1/27145]  |
| 专题 | 植被与环境变化国家重点实验室 |
| 作者单位 | 1.Shandong Agr Univ, Minist Agr, Key Lab Crop Ecophysiol & Cultivat, Tai An, Shandong, Peoples R China 2.Shandong Acad Agr Sci, Crop Res Inst, Jinan, Peoples R China 3.Chinese Acad Sci, Inst Bot, State Key Lab Vegetat & Environm Change, Beijing, Peoples R China |
| 推荐引用方式 GB/T 7714 | Duan, Wenxue,Yu, Zhenwen,Zhang, Yongli,et al. EFFECTS OF NITROGEN APPLICATION ON BIOMASS ACCUMULATION, REMOBILIZATION, AND SOIL WATER CONTENTS IN A RAINFED WHEAT FIELD[J]. TURKISH JOURNAL OF FIELD CROPS,2014,19(1):25-34. |
| APA | Duan, Wenxue,Yu, Zhenwen,Zhang, Yongli,Wang, Dong,Shi, Yu,&Xu, Zhenzhu.(2014).EFFECTS OF NITROGEN APPLICATION ON BIOMASS ACCUMULATION, REMOBILIZATION, AND SOIL WATER CONTENTS IN A RAINFED WHEAT FIELD.TURKISH JOURNAL OF FIELD CROPS,19(1),25-34. |
| MLA | Duan, Wenxue,et al."EFFECTS OF NITROGEN APPLICATION ON BIOMASS ACCUMULATION, REMOBILIZATION, AND SOIL WATER CONTENTS IN A RAINFED WHEAT FIELD".TURKISH JOURNAL OF FIELD CROPS 19.1(2014):25-34. |
入库方式： OAI收割
来源：植物研究所
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