2. Institutional Publications

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Development and evaluation of a mechanical collecting system for salvinia weed
(Kerala Agricultural University, 1987) Sankaranarayanan, M R; Jose Samual; George, T P
Salvinia harvesting machine is a mechanical device suitable for removal ofsalvinia weed (locally known as African Payal) from the waterways. The harvesting capacity of the equipment is 16 t/h. The estimated cost of the machine is about Rs. 5000 besides the cost of the high head centrifugal pumpset. The operating cost of the equipment is calculated as Rs. 28 per hour and this amounts to a weed clearing cost of Rs. 280from one hectare of weed infested rice field.
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, K
The 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.