ABSTRACT
This chapter discusses vegetable-based remunerative cropping integrated with a semi-intensive aquaculture system. The polluted water exchanged from the aquaculture fishponds was used to irrigate tomato during the winter season. Wastewater from fishponds cultured at some stocking densities of Indian major carps was evaluated to find out its efficacy as irrigation source with tomato as a test crop. Field experiments were conducted at the experimental farm of the Department of Agricultural and Food Engineering, Indian Institute of Technology, Kharagpur, West Bengal in eastern India. The ideal values of water quality parameters for aquaculture practices in freshwater, prescribed by Central Institute of Freshwater Aquaculture. The soil moisture variation in case of I0 was not conspicuous during all the seasons due to application of water at the time of crop need directly from the tube-well. The amount of nutrient recovered from the fishpond was estimated from the nutrient loads of exchanged wastewater.
