Effect of rice-prawn farming on soil fertility under different nutrient management practices

摘要

Rice-prawn culture improved organic carbon, total nitrogen, available phosphorous and potassium status of soil, but did not influence pH of the soil after harvest of transplanted rice. Organic carbon content was maximum in the treatment prawn alone,total nitrogen was maximum in the rice-prawn culture with farm yard manure, whereas available phosphorous and potassium were the highest in rice-prawn culture with NPK fertilizers.