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International Journal of Soil Science
  Year: 2013 | Volume: 8 | Issue: 1 | Page No.: 17-24
DOI: 10.3923/ijss.2013.17.24
 
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Phosphorus Availability in Calcareous Soil Amend with Chemical Phosphorus Fertilizer, Cattle Manure Compost and Sludge Manure

K.M. Al-Rohily, A.M. Ghoneim, A.S. Modaihsh and M.O. Mahjoub

Abstract:
Addition of organic manure could improve the soil physical and chemical conditions. Besides it might also increase the efficiency of added P fertilizers and provide additional sources of nutrients. Information on the availability of P following chemical fertilizer and compost addition to soil may help in better management of P fertilization. The aim of this work was to study the combined effect of various levels and kinds of organic and chemical P fertilizer on P availability in a calcareous soil, through an incubation experiment. Treatments included four rates of added P (20, 40, 80 and 160 mg P2O5 kg-1 soil) and control, one from an inorganic source (KH2PO4) and two from organic sources (Cattle manure and Sludge compost). The soil was incubated at 25°C and was maintained at 80% water holding capacity. Change in the amount of available P was measured during 16 weeks. By increasing the time of incubation, P availability in soil significantly decreased for both organic compost and inorganic fertilizer. It is concluded that the most critical time of incubation is the first week. In this time the soil loses almost 50% of the added P. Inorganic P fertilizer yielded more extractable P compared to the two organic sources only in the first week while the rest of incubation period, the amount of P available from the cattle manure compost was significantly higher.
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 RELATED ARTICLES:
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How to cite this article:

K.M. Al-Rohily, A.M. Ghoneim, A.S. Modaihsh and M.O. Mahjoub, 2013. Phosphorus Availability in Calcareous Soil Amend with Chemical Phosphorus Fertilizer, Cattle Manure Compost and Sludge Manure. International Journal of Soil Science, 8: 17-24.

DOI: 10.3923/ijss.2013.17.24

URL: https://scialert.net/abstract/?doi=ijss.2013.17.24

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