Dynamics of clay mineralogy with profile depth in relation to long term potassium fertilizer application to sugar cane crop
2009
Yousaf, M. (University of Arid Agriculture, Rawalpindi (Pakistan)) | Ali, S. (University of Arid Agriculture, Rawalpindi (Pakistan)) | Waheed, M. (University of Arid Agriculture, Rawalpindi (Pakistan)) | Akhtar, M.S. (National Agricultural Research Centre, Islamabad (Pakistan))
The experiment consisted of treatment of sugar cane crop with N, NP, NPK and farmyard manure and determination of its effect on soil mica, vermiculite and montmorillonites over a period of 18 years. The NPK treatment had greater mica in coarse clay, but less in fine clay than NP and control treatments. Vermiculite in-coarse clay fraction, in NPK treatment, increased with the depth as compared to other treatments. The fertilizer treatment effect on smectites content was obvious only in AP horizon in fine clay fraction.
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