Periodic P fertilizer application is recommended for small-holder farmers in Northeast China: evidence from a 12-year study
文献类型：期刊论文
| 作者 | Chen, Xin1; Wang, Yongzhuang1,2; Whalen, Joann K.3; Zhao, Muqiu1; Lu, Caiyan1; Shi, Yi1 |
| 刊名 | NUTRIENT CYCLING IN AGROECOSYSTEMS
 |
| 出版日期 | 2015-11-01 |
| 卷号 | 103期号:2页码:241-253 |
| 关键词 | Phosphorus Fertilizer Prices Soil Phosphorus Fractions Phosphorus Uptake Long Term Experiments |
| ISSN号 | 1385-1314 |
| DOI | 10.1007/s10705-015-9745-y |
| 英文摘要 | Phosphorus (P) fertilizer prices rose more than 150 % in the past two decades, thus periodic P fertilization (purchasing and applying superphosphate periodically) could be economically beneficial to small-holder farmers. Still, it is necessary to determine if periodic P fertilization could sustain corn production compared to annual P fertilization. Corn (Zea mays L.) obtains P for its growth and development from soil solution, which is replenished by soil P fractions associated with the soil minerals (inorganic P, Pi) and organic matter (organic P, Po). It is expected that P fertilization regimes (annual vs. periodic applications) will influence the concentration of soil P fractions contributing to corn P nutrition. The objective of the study was to evaluate soil Pi and Po fractions and P uptake in corn agroecosystems of Northeast China under two fertilizer regimes: triple-superphosphate applied annually at 0, 25 or 75 kg P ha(-1), or applied periodically (once every 6 years) as 150 or 450 kg P ha(-1). During the two 6-year periods (1997-2002 and 2003-2008), both periodic and annual triple-superphosphate application significantly (P < 0.05) increased the NaHCO3-Pi (93-453 %), NaOH-Pi (44-135 %) and HCl-Pi (11-45 %) fractions, thus sustaining crop P requirements. Although annual P fertilization gave 35 % more NaHCO3-Pi, 28 % more NaOH-Pi, 15 % greater HCl-Pi and 4 % more crop P uptake at the end of each 6-year period, there was no significant difference in corn yield. Therefore, periodic P application (once in 6 years) is recommended as an economical practice that could lower the cost of P fertilization for small-holder farmers producing corn in Northeast China. |
| WOS研究方向 | Agriculture |
| 语种 | 英语 |
| WOS记录号 | WOS:000362895300008 |
| 出版者 | SPRINGER |
| 源URL | [http://210.72.129.5/handle/321005/122239]  |
| 专题 | 中国科学院沈阳应用生态研究所 |
| 通讯作者 | Shi, Yi |
| 作者单位 | 1.Chinese Acad Sci, Inst Appl Ecol, Key Lab Pollut Ecol & Environm Engn, Shenyang 110016, Peoples R China 2.Univ Chinese Acad Sci, Beijing 100049, Peoples R China 3.McGill Univ, Dept Nat Resource Sci, Ste Anne De Bellevue, PQ H9X 3V9, Canada |
| 推荐引用方式 GB/T 7714 | Chen, Xin,Wang, Yongzhuang,Whalen, Joann K.,et al. Periodic P fertilizer application is recommended for small-holder farmers in Northeast China: evidence from a 12-year study[J]. NUTRIENT CYCLING IN AGROECOSYSTEMS,2015,103(2):241-253. |
| APA | Chen, Xin,Wang, Yongzhuang,Whalen, Joann K.,Zhao, Muqiu,Lu, Caiyan,&Shi, Yi.(2015).Periodic P fertilizer application is recommended for small-holder farmers in Northeast China: evidence from a 12-year study.NUTRIENT CYCLING IN AGROECOSYSTEMS,103(2),241-253. |
| MLA | Chen, Xin,et al."Periodic P fertilizer application is recommended for small-holder farmers in Northeast China: evidence from a 12-year study".NUTRIENT CYCLING IN AGROECOSYSTEMS 103.2(2015):241-253. |
入库方式： OAI收割
来源：沈阳应用生态研究所
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