Mcm. Beveridge et al., EFFECTS OF DAILY HARROWING ON POND SOIL AND WATER NUTRIENT LEVELS ANDON ROHU FINGERLING PRODUCTION, The Progressive fish-culturist, 56(4), 1994, pp. 282-287
Daily harrowing of rain-filled ponds in Bangladesh with a weighted rop
e (hora) was observed to have significant effects on turbidity levels,
but no significant effects on pond water nutrient or chlorophyll-a va
lues. Harrowing was also found to have no significant effects on pond
soil nutrient levels or fish growth and production. Transitory effects
on sediment gas release and on stratification were observed.