Effectiveness Analysis On Integrated Farming Of Rice And Aquaculture Animal In Farmlands Of Huai Ning County

At present,the rice planting area in China is about 453 million mu,and the total output of rice reaches 200 million tons,accounting for 35% of the total grain production in China.With the rapid development of social economy,the forms of agriculture and rural areas have undergone profound changes.The traditional single planting of rice is not only inefficient,but also seriously affects the enthusiasm of farmers to grow rice,and then affects the total grain yield.Therefore,on the basis of traditional rice cultivation,we actively explore a new comprehensive rice-fish cultivation mode of "promoting rice by fishing,stabilizing grain and increasing income,quality safety and ecological protection",aiming at promoting the development of modern fishery and agriculture,improving product quality and safety,enhancing comprehensive fishery benefits,promoting farmers' production and income,realizing sustainable development of paddy fields and accelerating the promotion of aquaculture green by the state.The new requirements of color development coincide with each other.In this paper,the rice-shrimp symbiosis model in the rice-fish comprehensive cultivation model in Huaining County is taken as the research object.By consulting data,theoretical analysis,field investigation,case study and statistical description,the positive and negative factors of rice-fish comprehensive cultivation technology promotion on agricultural production are judged.The effective ways are explored,the correct direction and mode of extension are grasped,and the experience and theory of extension are accumulated for the government.The policy formulation of fishery sector provides theoretical basis and policy suggestions,in order to achieve the goal of revitalizing agriculture and rural areas by science and technology.In terms of economic benefits,rice yield per mu increased steadily,and economic benefits per mu increased year by year.The average economic benefit per mu in 2016 was1320.75 yuan,and the average economic benefit per mu in 2018 was 3488.04 yuan.In terms of the ratio of output to input,the ratio of output to input of rice-fish integrated cultivation is2.21,which is significantly higher than that of single-planting rice 1.38.Therefore,the promotion of rice-fish integrated cultivation technology really achieves the goal of economicbenefit of harvesting kilograms of grain per mu and increasing 1000 yuan per mu.In terms of social benefits,rice-shrimp symbiosis is a modern agricultural development model that realizes the dual-use of one field and mutual benefit,resource saving,double-harvest of shrimp and rice,increasing production and efficiency,food security and high-quality products.The demonstration of rice and fishery comprehensive cultivation has achieved remarkable results.More than 2,000 poor households have been lifted out of poverty and become rich.The development area has reached 1,740 hectares,and the output has reached 3,654 tons,with the satisfaction of the masses reaching 97%.In terms of ecological benefits,rice-fish integrated cultivation mode effectively improves rural living environment and prevents agricultural non-point source pollution,ensures the recycling of material and energy in farmland ecosystem,effectively reduces the use of fertilizer by 70% and pesticide by 60%,improves lobster quality and produces rice in line with the requirements of green pollution-free.Therefore,the popularization of rice and fishery integrated cultivation technology has laid a solid foundation for achieving sustainable agricultural development and promoting the increase of farmers' production and income.