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| 畜禽有机肥氮、磷在红壤中的矿化特征研究 | |
| 引用本文： | 杨蕊,李裕元,魏红安,高茹,石辉,吴金水.畜禽有机肥氮、磷在红壤中的矿化特征研究[J].植物营养与肥料学报,2011,17(3):600-607. |
| 作者姓名： | 杨蕊 李裕元 魏红安 高茹 石辉 吴金水 |
| 作者单位： | 1. 西安建筑科技大学环境与市政工程学院,陕西西安,710055;中国科学院亚热带农业生态研究所,亚热带农业生态过程重点实验室,湖南长沙,410125 2. 中国科学院亚热带农业生态研究所,亚热带农业生态过程重点实验室,湖南长沙,410125 3. 西安建筑科技大学环境与市政工程学院,陕西西安,710055 |
| 基金项目： | 中国科学院知识创新工程重要方向项目，国家外国专家局项目 |
| 摘 要： | 选用腐熟的猪粪、鸡粪和第四纪红土发育的典型红壤为试验材料,通过室内培养试验,研究了土壤中矿质氮(NO-3-N和NH4+-N)及Olsen-p的动态变化.结果表明,有机肥中氮和磷的矿化具有不同特征.氮在红壤中的矿化阶段为:前4周缓慢释放,矿化速率为N 0.29～0.46mg/(kg·d);4～10周快速释放,矿化速率为N... |
| 关 键 词： | 畜禽有机肥 氮矿化速率 矿质氮 有效磷 氮磷释放率 红壤 |
| 收稿时间： | 2010-10-08 |
Study on the nitrogen and phosphorus mineralization of livestock and chichken manure in red soil |
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| YANG Rui,LI Yu-yuan,WEI Hong-an,GAO Ru,SHI Hui,WU Jin-shui.Study on the nitrogen and phosphorus mineralization of livestock and chichken manure in red soil[J].Plant Nutrition and Fertilizer Science,2011,17(3):600-607. | |
| Authors: | YANG Rui LI Yu-yuan WEI Hong-an GAO Ru SHI Hui WU Jin-shui |
| Institution: | YANG Rui1,2,LI Yu-yuan2,WEI Hong-an1,GAO Ru2,SHI Hui1,WU Jin-shui2(1 College of Environment and Municipal Engineering,Xi'an University of Architecture and Technology,Xi'an 710055,China,2 Laboratory for Agro-Ecological Processes in Subtropical Region,Institute of Subtropical Agriculture,Chinese Academy of Sciences,Changsha 410125,China) |
| Abstract: | A laboratory incubation experiment was conducted using composted chicken and pig manures and red soil which derived from Quaternary red clay. The dynamic changes in mineral nitrogen (NO-3-N and NH+4-N) and soil available phosphorus (Olsen-P) were studied under different manure application rates. Results showed that the mineralization of N and P significantly differed. .The N mineralization phases were: slow release stage in the initial 4-week with mineralization rates (MR) N 0.290.46 mg/(d?kg); rapid release stage from 4 through 10 weeks with MR N 0.600.71 mg/(d?kg) and slight decline stage from 10 through 15 weeks with MR N -0.09-0.20 mg/(d?kg). The release of available P mainly occurred in the third week. The application of chicken and pig manures could markedly increase soil mineral N and available P. However, the impacts of application amount on N and P release processes were negligible. Through 15-week incubation, the release ratio of mineral N for chicken manure ranged from 15.6% to 18.3%, which was close to that of pig manure by 14.8% to 16.9%. As respect to the release ratio of available P, the values of 34.0%41.6% for pig manure were greater than those of 30.2%37.8% for chicken manure. This suggested that 60%80% of the applied manure N and P, which have not been mineralized or re-fixed in soil, were remained in the soil after 15-week application. |
| Keywords: | chicken and pig manures nitrogen mineralization rate mineral nitrogen available phosphorus N and P release ratio red soil |
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