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Item Potential of Salvinia mo lest a (African payal) as an alternative and supplemental feed stock to cattle dung for biogas production(Kerala Agricultural University, 1988) Sankaranarayanan, M R; John Thomas, KThe floating aquatic weed, Salvinia molesta (locally known as 'African payal') could be easily fermented and hence is a very good material for biogas production. The average gas production per kg of oven dried salvinia weed was 336 litres with a retention time of 50 days. The gas generation could be doubled when mixed with fresh cowdung in the ratio 1:1. Thus we can make up the shortage of cowdung with the use of salvinia weed for biogas production, wherever it is available.Item Kabbani river basin: A study with reference to horton's laws(Kerala Agricultural University, 1994) Jayasree, S; John Thomas, KA quantitative analysis of the linear morphological parameters and their relationship with average monthly monsoon discharge was conducted using the data collected from the Water Resources Divisional Office, Trichur. Most of the parameters were inter-related and obeyed Morton's laws. The smallest tributaries formed the major part of the river basin. The stream flow during the periods 1976-'80 and 1981-'85 varied with the basin shape.Item Model study for stream flow of Chaliyar(Kerala Agricultural University, 1994) John Thomas, K; Jayasree, S