Integration of Growing Milk Vetch in Winter and Reducing Nitrogen Fertilizer Application Can Improve Rice Yield in Double-Rice Cropping System
To study whether integrative fertilization [growing milk vetch in winter and reducing the dose of chemical nitrogen (N) fertilizer] can improve rice yield, and to reveal the underlying regulatory mechanisms for integrative fertilization, a three-year field trial including two treatments, milk vetch-...
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doaj-b031166a0737463c8017e4743db8de5e2020-11-24T21:26:07ZengElsevierRice Science1672-63082016-05-0123313214310.1016/j.rsci.2015.11.003Integration of Growing Milk Vetch in Winter and Reducing Nitrogen Fertilizer Application Can Improve Rice Yield in Double-Rice Cropping SystemZhou Chun-huo0Zhao Zun-kang1Pan Xiao-hua2Huang Shan3Tan Xue-ming4Wu Jian-fu5Shi Qing-hua6Collaborative Innovation Center for Modernization Production of Double Cropping Rice, Jiangxi Agricultural University / Key Laboratory of Crop Physiology, Ecology and Genetic Breeding, Ministry of Education / Jiangxi Key Laboratory of Crop Physiology, Ecology and Genetic Breeding, Nanchang 330045, ChinaCollege of Agriculture, Guangxi University, Nanning 530005, ChinaCollaborative Innovation Center for Modernization Production of Double Cropping Rice, Jiangxi Agricultural University / Key Laboratory of Crop Physiology, Ecology and Genetic Breeding, Ministry of Education / Jiangxi Key Laboratory of Crop Physiology, Ecology and Genetic Breeding, Nanchang 330045, ChinaCollaborative Innovation Center for Modernization Production of Double Cropping Rice, Jiangxi Agricultural University / Key Laboratory of Crop Physiology, Ecology and Genetic Breeding, Ministry of Education / Jiangxi Key Laboratory of Crop Physiology, Ecology and Genetic Breeding, Nanchang 330045, ChinaCollaborative Innovation Center for Modernization Production of Double Cropping Rice, Jiangxi Agricultural University / Key Laboratory of Crop Physiology, Ecology and Genetic Breeding, Ministry of Education / Jiangxi Key Laboratory of Crop Physiology, Ecology and Genetic Breeding, Nanchang 330045, ChinaCollaborative Innovation Center for Modernization Production of Double Cropping Rice, Jiangxi Agricultural University / Key Laboratory of Crop Physiology, Ecology and Genetic Breeding, Ministry of Education / Jiangxi Key Laboratory of Crop Physiology, Ecology and Genetic Breeding, Nanchang 330045, ChinaCollaborative Innovation Center for Modernization Production of Double Cropping Rice, Jiangxi Agricultural University / Key Laboratory of Crop Physiology, Ecology and Genetic Breeding, Ministry of Education / Jiangxi Key Laboratory of Crop Physiology, Ecology and Genetic Breeding, Nanchang 330045, ChinaTo study whether integrative fertilization [growing milk vetch in winter and reducing the dose of chemical nitrogen (N) fertilizer] can improve rice yield, and to reveal the underlying regulatory mechanisms for integrative fertilization, a three-year field trial including two treatments, milk vetch-rice-rice (MRR) and winter fallow-rice-rice (FRR), was conducted in 2010, 2011 and 2012. Our results demonstrated that the MRR treatment could significantly improve rice yield compared with the FRR treatment, especially when the application ratio of milk vetch and chemical fertilizer was 1:2. MRR treatment increased the effective panicle number and the spikelet number per panicle. In addition, a higher tillering number, leaf area index, photosynthetic-potential and photosynthetic-potential to grain ratio were observed in MRR treatment, which could provide enough dry matter for yield formation. Moreover, in MRR treatment, we discovered a higher transportation ratio and transformation ratio of dry matter in culm and leaves, and a stronger total sink capacity and spikelet-root bleeding intensity at the heading stage and 15 d after heading. Furthermore, the MRR treatment showed higher total N, phosphorus and potassium uptakes than FRR treatment, which was associated with the higher root dry weight in each soil layers. These results suggest that growing milk vetch in winter can improve rice yield under less chemical N fertilizer application, which is due to the improvement of soil nutrient status and the increased of rice root growth and development.http://www.sciencedirect.com/science/article/pii/S1672630816300038milk vetchdouble-rice cropping systemdry mattersink-source circulationyieldnitrogenrice |
collection |
DOAJ |
language |
English |
format |
Article |
sources |
DOAJ |
author |
Zhou Chun-huo Zhao Zun-kang Pan Xiao-hua Huang Shan Tan Xue-ming Wu Jian-fu Shi Qing-hua |
spellingShingle |
Zhou Chun-huo Zhao Zun-kang Pan Xiao-hua Huang Shan Tan Xue-ming Wu Jian-fu Shi Qing-hua Integration of Growing Milk Vetch in Winter and Reducing Nitrogen Fertilizer Application Can Improve Rice Yield in Double-Rice Cropping System Rice Science milk vetch double-rice cropping system dry matter sink-source circulation yield nitrogen rice |
author_facet |
Zhou Chun-huo Zhao Zun-kang Pan Xiao-hua Huang Shan Tan Xue-ming Wu Jian-fu Shi Qing-hua |
author_sort |
Zhou Chun-huo |
title |
Integration of Growing Milk Vetch in Winter and Reducing Nitrogen Fertilizer Application Can Improve Rice Yield in Double-Rice Cropping System |
title_short |
Integration of Growing Milk Vetch in Winter and Reducing Nitrogen Fertilizer Application Can Improve Rice Yield in Double-Rice Cropping System |
title_full |
Integration of Growing Milk Vetch in Winter and Reducing Nitrogen Fertilizer Application Can Improve Rice Yield in Double-Rice Cropping System |
title_fullStr |
Integration of Growing Milk Vetch in Winter and Reducing Nitrogen Fertilizer Application Can Improve Rice Yield in Double-Rice Cropping System |
title_full_unstemmed |
Integration of Growing Milk Vetch in Winter and Reducing Nitrogen Fertilizer Application Can Improve Rice Yield in Double-Rice Cropping System |
title_sort |
integration of growing milk vetch in winter and reducing nitrogen fertilizer application can improve rice yield in double-rice cropping system |
publisher |
Elsevier |
series |
Rice Science |
issn |
1672-6308 |
publishDate |
2016-05-01 |
description |
To study whether integrative fertilization [growing milk vetch in winter and reducing the dose of chemical nitrogen (N) fertilizer] can improve rice yield, and to reveal the underlying regulatory mechanisms for integrative fertilization, a three-year field trial including two treatments, milk vetch-rice-rice (MRR) and winter fallow-rice-rice (FRR), was conducted in 2010, 2011 and 2012. Our results demonstrated that the MRR treatment could significantly improve rice yield compared with the FRR treatment, especially when the application ratio of milk vetch and chemical fertilizer was 1:2. MRR treatment increased the effective panicle number and the spikelet number per panicle. In addition, a higher tillering number, leaf area index, photosynthetic-potential and photosynthetic-potential to grain ratio were observed in MRR treatment, which could provide enough dry matter for yield formation. Moreover, in MRR treatment, we discovered a higher transportation ratio and transformation ratio of dry matter in culm and leaves, and a stronger total sink capacity and spikelet-root bleeding intensity at the heading stage and 15 d after heading. Furthermore, the MRR treatment showed higher total N, phosphorus and potassium uptakes than FRR treatment, which was associated with the higher root dry weight in each soil layers. These results suggest that growing milk vetch in winter can improve rice yield under less chemical N fertilizer application, which is due to the improvement of soil nutrient status and the increased of rice root growth and development. |
topic |
milk vetch double-rice cropping system dry matter sink-source circulation yield nitrogen rice |
url |
http://www.sciencedirect.com/science/article/pii/S1672630816300038 |
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