Spatial variability of soil test phosphorus in manure-amended soils on three dairy farms in North Central Texas
文献类型：期刊论文
| 作者 | Somenahally, A.1; Weindorf, D. C.2; Darilek, L.3; Muir, J. P.4; Wittie, R.5; Thompson, C.5; Morgan, C. L. S.1 |
| 刊名 | JOURNAL OF SOIL AND WATER CONSERVATION
 |
| 出版日期 | 2009-03-01 |
| 卷号 | 64期号:2页码:89-97 |
| 关键词 | geostatistics interpolation phosphorus spatial variability |
| ISSN号 | 0022-4561 |
| DOI | 10.2489/jswc.64.2.89 |
| 通讯作者 | Somenahally, A.() |
| 英文摘要 | Dairies in Erath County, Texas have been subject to strict monitoring for phosphorus (P) management due to contamination of the North Bosque River by a number of agricultural and nonagricultural sources. Soil conditions and management practices vary greatly among dairies, which make a difference in soil test P (STP) levels and runoff potential, and thus spatial variability OF STP was studied. Surface Soil samples were collected from three dairies and were Measured for STP, water Soluble P (WSP),CaCO(3) equivalent, organic carbon, clay content, and pH. Mehlich 3-ICP STP values ranged from 19 mg kg(-1) (ppm) to 1.814 mg kg(-1), and WSP ranged from 2 mg kg(-1) to 317 mg kg(-1). Phosphorus levels varied with soil types and management practices. Geo- statistic alanalysis showed greater spatial variability of STP and WSP compared to other soil properties like CaCO(3), clay, organic carbon, and pH. The STP and WSP extraction behaved differently on the soil samples from the three dairies studied so that areas with the highest STP levels did not show the highest WSP and vice versa. Based oil this study's results, it is recommended that phosphorus Index calculations, regulatory monitoring, production, or conservation practices be based oil WSP as Mehlich 3 extractant (a strong acid) extracts phosphorus that is not plant available or readily released to leaching or runoff. |
| 收录类别 | SCI |
| WOS关键词 | CATTLE MANURE |
| WOS研究方向 | Environmental Sciences & Ecology ; Agriculture ; Water Resources |
| WOS类目 | Ecology ; Soil Science ; Water Resources |
| 语种 | 英语 |
| WOS记录号 | WOS:000265176500010 |
| 出版者 | SOIL WATER CONSERVATION SOC |
| URI标识 | http://www.irgrid.ac.cn/handle/1471x/2558750 |
| 专题 | 南京土壤研究所 |
| 通讯作者 | Somenahally, A. |
| 作者单位 | 1.Texas A&M Univ, Dept Soil & Crop Sci, College Stn, TX 77843 USA 2.Louisiana State Univ, Baton Rouge, LA 70803 USA 3.Chinese Acad Sci, Inst Soil Sci, Nanjing, Peoples R China 4.Texas AgriLife Res, Stephenville, TX USA 5.Tarleton State Univ, Stephenville, TX USA |
| 推荐引用方式 GB/T 7714 | Somenahally, A.,Weindorf, D. C.,Darilek, L.,et al. Spatial variability of soil test phosphorus in manure-amended soils on three dairy farms in North Central Texas[J]. JOURNAL OF SOIL AND WATER CONSERVATION,2009,64(2):89-97. |
| APA | Somenahally, A..,Weindorf, D. C..,Darilek, L..,Muir, J. P..,Wittie, R..,...&Morgan, C. L. S..(2009).Spatial variability of soil test phosphorus in manure-amended soils on three dairy farms in North Central Texas.JOURNAL OF SOIL AND WATER CONSERVATION,64(2),89-97. |
| MLA | Somenahally, A.,et al."Spatial variability of soil test phosphorus in manure-amended soils on three dairy farms in North Central Texas".JOURNAL OF SOIL AND WATER CONSERVATION 64.2(2009):89-97. |
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来源：南京土壤研究所
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