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Subject: Agricultural Statistics and Informatics × Author: KARTHIK, K. × End date: 2019 × Type: Thesis × Thesis Type: M.Sc ×
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    ThesisItemOpen Access
    REGIONAL GROWTH ANALYSIS OF IMPORTANT CEREAL CROPS IN TAMIL NADU
    (AAU, Jorhat, 2018-07) KARTHIK, K.; Borah, Deepika Das
    In Tamil Nadu, agriculture is the most overriding sector. Around 70 percent of the state's population are involved in agricultural activities as this is one of the major means of livelihood in Tamil Nadu. Rice, sorghum, maize, ragi, bajra and millets are the cereal crops grown. Fluctuation in the cereal production may influence India’s production to a great extent. Rice is a staple food of Tamil Nadu whereas sorghum, an important crop for both human and livestock and maize is a commercial crop. Hence the study is limited to the crops namely paddy, sorghum and maize due to the importance of these crops. The present study is about the analysis of area, production and productivity of the three selected cereal crops in Tamil Nadu. The objectives of the study are - 1. To examine the changes in area, production and average yield of important cereal crops in different regions of Tamil Nadu for 20 years 2. To examine the growth rates of area, production and productivity of important cereal crops of Tamil Nadu 3. To examine the regional disparities in crop production in Tamil Nadu Time series data of area, production and productivity of the important selected cereal crop of Agro Climatic Regions of Tamil Nadu were collected for twenty years (1996-2015). Three functions ie., linear function, quadratic function and exponential function were consider in order to study the changes in area, production and productivity. Best fitted trend equation had been selected based on R2 value. The direction and extent of growth had been estimated by using Compound Growth Rate. Instability index of production of important selected cereal crops had been estimated by using the R2 value and Coefficient of variation. Regional disparity in crop production was studied with the help of composite index of development. The index was given by selected indicators. From the present study, it had been revealed that as per the value of coefficient of determination, quadratic function was found to be the best fitted trend function for the estimation of area, production and productivity of selected important cereal crops of all Agro-climatic Regions of Tamil Nadu. From trend curve and CGR it had been observed that decreasing trend of area of paddy was observed in all other Zones except Cauvery Delta Zone. In Cauvery Delta Zone, the production of paddy was following an increasing trend. Except Southern Zone, all the Zones had been declining in sorghum production. In maize, all the Zones had been increasing in both area and production. Based on CGR and Instability Index of production, Cauvery Delta Zone was comparatively preferred for paddy production. Southern Zone was preferred for sorghum production. All the Zones were suitable for maize production. Using the composite index of development of each crop in all the Agro-climatic Region, the ranking was given and the Zones were classified based on the levels of development. The Western Zone was the high developed Zone and Cauvery Delta Zone was the high middle developed Zone in paddy crop. In sorghum crop, the high developed Zone was found to be North Western Zone and Southern Zone was the high middle developed Zone. It was revealed that North Western Zone was the high developed Zone and Southern Zone was high middle developed Zone in maize crop.