A new mode of integrated farming of rice and aquaculture animal in the north was constructed and economic benefits were analyzed.On the basis of rice-crab ecological mode,this model added pacific white shrimp(Penaeus Vannamei),Chinese grass shrimp(Palaemonetes sinensis)and silver carp and bighead carp.The results showed that the highest profit among aquatic products in this model in 2022 and 2023 was crab,reaching 31,212 yuan/hm 2 and 32,9652 yuan/hm2.The largest input-output ratio was white shrimp,which was 17.74 and 21.32 respectively in the two years.Compared with the rice monoculture model,this new model in-creased the income by 27,809 yuan/hm2 and 29,329 yuan/hm2,which had a positive effect on the comprehensive benefits.
维普
万方数据