Vol. 4 (5) : September-October 2013 issue
Green Farming Vol. 4 (5) : 568-570 (September-October, 2013)
Fertility characteristics of acid sulphate soils of Kerala
V.I. BEENAa1* and K.C. MANORAMA THAMPATTIb2
aDeptt. of Soil Sci. & Agricul. Chemistry, College of Horti., Kerala Agricultural University, Vellanikkara, Thrissur - 680 656 bDeptt. of Soil Sci. & Agricul. Chemistry, College of Agriculture, KAU, Vellayani, Thiruvananthapuram - 695 522 (Kerala)
Designation : 1Ph.D Scholar *(beenavi@gmail.com), 2Professor
Subject : Soil Science & Agric. Chemistry; Soil Health & Soil Conservation Engg.
Paper No. : P-0955
Total Pages : 3
Received : 27 May 2013
Revised accepted : 21 August 2013
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Citation :
V.I. BEENA and K.C. MANORAMA THAMPATTI. 2013. Fertility characteristics of acid sulphate soils of Kerala. Green Farming Vol. 4 (5) : 568-570 ; September-October, 2013
ABSTRACT
The acid sulphate soils of Kuttanad were delineated and classified according to the detailed survey carried out. Study on chemical characteristics of soil revealed that soils were extremely acidic with high organic carbon content. The lowest pH recorded was 2.4. the soils were low in available phosphorus content and high in available potassium content ranging from 189 to 636 mg kg-1 in surface horizons. Available Ca content ranged from 514 to 1456 mg kg -1. The available sulphur status of study area varied from 1232 to 5300 mg kg -1. The sub soil showed higher potential acidity compared to surface soils. Available Fe and Mn content were also high in these soils. As per USDA classification, the entire study area came under Typic Sulfaquent.
Key words :
Acid sulphate soils, Fertility characteristics, Kuttanad.
