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Chinese Agricultural Science Bulletin ›› 2008, Vol. 24 ›› Issue (7): 260-264.

• 土壤肥料科学 • Previous Articles     Next Articles

Analysis on the Topsoil Nutrients Status in Shouguang

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  • Received:2008-04-21 Revised:2008-05-20 Online:2008-07-05 Published:2008-07-05

Abstract: In order to proving the topsoil nutrients status in Shouguang, 4083 topsoil samples from 16 towns were collected and analyzed routinely. The results indicated that the conventional contents of topsoil nutrients in the city were rich, while the average contents of pH, C/N, organic matter, total N, Avail-N, Olsen-P, Avail-K were 7.16, 8.43, 14.70g/kg, 1.24g/kg, 126.21mg/kg, 58.23mg/kg, 219.10mg/kg, respectively. As a whole, the content of organic matter is in medium level, total N is relatively rich, Avail-N is rich, Olsen-P and Avail-K are very rich.; The contents of topsoil nutrients showed an obvious difference between north and south in the city, and most soil nutrients in protected vegetable lands are significantly higher than those in open farm lands; Among all the topsoil nutrients, Olsen-P has maximal variance, while the others have medium variance except pH.

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