| Pak. J. Bot., 32(1): 93-100, 2000. | Back to Contents | ||||
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Updated: 08-04-11 | ||||
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SOME PHYSICO-CHEMICAL CHARACTERISTICS OF SOIL IN SUGARCANE CULTIVATED. AREAS' OF NAWABSHAH, SINDH, PAKISTAN MUHAMMAD ANWAR ARAIN, MUBARIK AHMED AND MUZAFFAR A. KHAN*
Abstract:
A declining trenld in per hectare yield of sugarcane in Nawahshah is being observed
since 1992. Soil samples collected from Nawabshah, Padedan and Sakrand when analysed
for soil properties and some macro and micro nutrients showed that the soil is
highly deficient in organic matter (X = 0.35% ) and phosphorus (X = 6.2 ppm).
Soil pH was found to be 8.35 inldicating its alkalinily. Sodium was found to be
the dominant cation (X =950 ppm) affecting electrical conductivity (7.71 millimohs/cm).
Mean exchangeable sodium percentage and sodium absorption ratio were 5.4% and
9.5 millimol / L respectively. The soils were found to have sufficient potassium
(X = 500 ppm), calcium (X = 10500 ppm) and magnesium (X = 3500).
Tropical Agricultural Research Centre, Pakistan Agricultural
Research Council, Karachi Uriiversity Campus, Karachi, Pakistan. |
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