Concentrations and variations of total N, available P and K of cultivated soils in Zhejiang Province, China
Total N, available P and K of cultivated soils from 11 districts of Zhejiang Province were investigated. Statistical results showed that the average soil total N and available K decreased, and the average soil available P increased, as compared with those obtained at 1980s. The cultivated soil sampl...
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Zhejiang University Press
2012-01-01
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| Series: | 浙江大学学报. 农业与生命科学版 |
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| Online Access: | https://www.academax.com/doi/10.3785/j.issn.1008-9209.2012.01.010 |
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| author | MA Wan-zhu ZHANG Ming-kui LÜ Xiao-nan |
| author_facet | MA Wan-zhu ZHANG Ming-kui LÜ Xiao-nan |
| author_sort | MA Wan-zhu |
| collection | DOAJ |
| description | Total N, available P and K of cultivated soils from 11 districts of Zhejiang Province were investigated. Statistical results showed that the average soil total N and available K decreased, and the average soil available P increased, as compared with those obtained at 1980s. The cultivated soil samples with low levels of soil total N (<1 g·kg<sup>-1</sup>), available P (<10 mg·kg<sup>-1</sup>) and K (<80 mg·kg<sup>-1</sup>) accounted for 13.90%, 44.80% and 48.17% of total soil samples, respectively. The proportion of soil samples with deficiency of one of N, P, and K was as high as 73.79%. There were imbalances among soil N, P and K. Great variations in concentrations of soil total N, available P and K were found. The variation coefficients of soil total N, available P and K decreased in the order of available P (192%)> available K (71%) > total N (39%). Soil total N was correlated positively with organic matter, and decreased in the order of clayey soil > clay-loamy soil > loamy soil > sandy soil, and in the order of hydrographic net plain > river plain > hilly area > coastal plain. Soil available P increased with decreasing pH, and decreased in the order of sandy soil > loamy soil > clay loamy soil, clayey soil, and in the order of high hilly area, coastal plain > river plain, low hilly area > hydrographic net plain. Soil available K was related to pH, texture, and geomorphic type, and decreased with decreasing pH. The available K decreased in the order of clayey soil > clay loamy soil > loamy soil > sandy soil, and in the order of coastal plain > hydrographic net plain > river plain > low hilly area > high hilly area. |
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| institution | Kabale University |
| issn | 1008-9209 2097-5155 |
| language | English |
| publishDate | 2012-01-01 |
| publisher | Zhejiang University Press |
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| series | 浙江大学学报. 农业与生命科学版 |
| spelling | doaj-art-416fe0094e59449da0c93629174196ef2025-08-20T03:58:14ZengZhejiang University Press浙江大学学报. 农业与生命科学版1008-92092097-51552012-01-0138718010.3785/j.issn.1008-9209.2012.01.01010089209Concentrations and variations of total N, available P and K of cultivated soils in Zhejiang Province, ChinaMA Wan-zhuZHANG Ming-kuiLÜ Xiao-nanTotal N, available P and K of cultivated soils from 11 districts of Zhejiang Province were investigated. Statistical results showed that the average soil total N and available K decreased, and the average soil available P increased, as compared with those obtained at 1980s. The cultivated soil samples with low levels of soil total N (<1 g·kg<sup>-1</sup>), available P (<10 mg·kg<sup>-1</sup>) and K (<80 mg·kg<sup>-1</sup>) accounted for 13.90%, 44.80% and 48.17% of total soil samples, respectively. The proportion of soil samples with deficiency of one of N, P, and K was as high as 73.79%. There were imbalances among soil N, P and K. Great variations in concentrations of soil total N, available P and K were found. The variation coefficients of soil total N, available P and K decreased in the order of available P (192%)> available K (71%) > total N (39%). Soil total N was correlated positively with organic matter, and decreased in the order of clayey soil > clay-loamy soil > loamy soil > sandy soil, and in the order of hydrographic net plain > river plain > hilly area > coastal plain. Soil available P increased with decreasing pH, and decreased in the order of sandy soil > loamy soil > clay loamy soil, clayey soil, and in the order of high hilly area, coastal plain > river plain, low hilly area > hydrographic net plain. Soil available K was related to pH, texture, and geomorphic type, and decreased with decreasing pH. The available K decreased in the order of clayey soil > clay loamy soil > loamy soil > sandy soil, and in the order of coastal plain > hydrographic net plain > river plain > low hilly area > high hilly area.https://www.academax.com/doi/10.3785/j.issn.1008-9209.2012.01.010Zhejiang Provincecultivated soiltotal Navailable Pavailable Kstatusinfluencing factor |
| spellingShingle | MA Wan-zhu ZHANG Ming-kui LÜ Xiao-nan Concentrations and variations of total N, available P and K of cultivated soils in Zhejiang Province, China 浙江大学学报. 农业与生命科学版 Zhejiang Province cultivated soil total N available P available K status influencing factor |
| title | Concentrations and variations of total N, available P and K of cultivated soils in Zhejiang Province, China |
| title_full | Concentrations and variations of total N, available P and K of cultivated soils in Zhejiang Province, China |
| title_fullStr | Concentrations and variations of total N, available P and K of cultivated soils in Zhejiang Province, China |
| title_full_unstemmed | Concentrations and variations of total N, available P and K of cultivated soils in Zhejiang Province, China |
| title_short | Concentrations and variations of total N, available P and K of cultivated soils in Zhejiang Province, China |
| title_sort | concentrations and variations of total n available p and k of cultivated soils in zhejiang province china |
| topic | Zhejiang Province cultivated soil total N available P available K status influencing factor |
| url | https://www.academax.com/doi/10.3785/j.issn.1008-9209.2012.01.010 |
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