摘要 : This study analyses the state of rice cultivation in the Kole land (a wetland area in Kerala) in terms of input use, yield and profitability, with a view to identifying the major constraints and opportunities in carrying out and s... 展开 This study analyses the state of rice cultivation in the Kole land (a wetland area in Kerala) in terms of input use, yield and profitability, with a view to identifying the major constraints and opportunities in carrying out and sustaining rice production. Data for the 2008-09 cropping season were obtained from a sample of 182 farmers. Results show that rice yield per hectare is very high in the Kole land. However, this is attained with higher input use, raising concerns on both ecological and economic sustainability. The returns to scale indicate that Kole rice production is operating under diminishing returns to scale. For a large number of farmers, cultivation of rice as a single crop is not economically viable. 收起