A Prediction on Rice Production in India through Multivariate Regression Analysis
Department of Business Administration Utkal University, Bhubaneswar India-751004Abstract
In this paper an extensive study is carried out to estimate the rice production in India based on current and historical data. The significant factors studied are land used, irrigation and production respectively. To study the strength of interdependence between the factors and estimation of production multivariate correlation analysis and regression analysis have been applied. To predict the future production of rice different time series techniques have been studied for better comparison. To facilitate the entire study and maintain quality, consistency and accuracy of data SPSS- 20.0 version software is used.
At a glance: Figures
Keywords: rice production, land used, irrigation, multivariate regression analysis, time series analysis
Journal of Business and Management Sciences, 2015 3 (1),
pp 26-31.
DOI: 10.12691/jbms-3-1-4
Received March 10, 2015; Revised April 02, 2015; Accepted April 13, 2015
Copyright © 2015 Science and Education Publishing. All Rights Reserved.Cite this article:
- Jena, Somu. "A Prediction on Rice Production in India through Multivariate Regression Analysis." Journal of Business and Management Sciences 3.1 (2015): 26-31.
- Jena, S. (2015). A Prediction on Rice Production in India through Multivariate Regression Analysis. Journal of Business and Management Sciences, 3(1), 26-31.
- Jena, Somu. "A Prediction on Rice Production in India through Multivariate Regression Analysis." Journal of Business and Management Sciences 3, no. 1 (2015): 26-31.
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1. Introduction
Rice has more than forty thousand varieties species all across the globe. It is the staple food of the country India. The origin of rice is buried in obscurity and the depths of time. Till today, we do not know when it was first discovered and domesticated and perhaps this is one fact we will never come to know. In the long and turbulent history of the human race, one of the most important developments that led to the development of civilizations was the domestication of rice, for this one single variety of grain has fed and nourished more people over a longer period of time than any other crop.
Rice or Oryza Sativa (as botanists prefer to call it) is not a tropical plant but is still associated with a wet, humid climate. It is generally believed that the domestication of rice began somewhere in the Asian arc. From its place of birth, lost forever in the mists of time, the plant and its grain spread all over the world. According to some schools of thought, It is probably a descendent of wild grass that was cultivated in the foothills of the Eastern Himalayas and the upper tracts of the Irrawady and Mekong river basins. Another school of thought believes that the rice plant may have originated in southern India and then spread to the north of the country.
From India, the plant spread to China and then onwards to Korea, the Philippines (about 2000 B.C.), Japan and Indonesia (about 1000 B.C.). The Persians are known to have been importers of this grain. From there its popularity spread to Mesopotamia and Turkestan. It is believed that when Alexander the Great invaded India in 327 B.C., one of the priced possessions he carried back with him was rice.
Arab travelers took it to Egypt, Morocco and Spain and from there it traveled all across Europe. The Portugese and Hollanders took rice to their colonies in West Africa. From Africa it traveled to America through the 'Columbian Exchange' of natural resources - rice being a gift from the Old World to the New. Rice has been cultivated in the United States of America for the last three hundred years.
It was in China that the process of puddling soil and transplanting seedlings was likely refined. With the development of puddling and transplanting, rice became truly domesticated. In China, the history of rice in the river valleys and low-lying areas is older than its history as a dry land crop. In Southeast Asia, by contrast, rice was originally grown under dry land conditions in the uplands, and later it came to occupy the vast river deltas. Migrants from South China or perhaps South East Asia carried the traditions of wetland rice cultivation to the Philippines during the second millennium B.C., and Deutero - Malays may have carried the practice to Indonesia about 1500 B.C. From China or Korea, the crop was introduced to Japan around 100 B.C.
According to some schools of thought, It is probably a descendent of wild grass that was cultivated in the foothills of the Eastern Himalayas and the upper tracts of the Irrawady and Mekong river basins. Another school of thought believes that the rice plant may have originated in southern India and then spread to the north of the country.
The journey of rice around the world has been slow, but once it took root it stayed and became a major agricultural and economic product for the people. In the Indian subcontinent more than a quarter of the cultivated land is given to rice. It is a very essential part of the daily meal in many parts of the country. The rice grain is treated with honour in the subcontinent and in Asia: for here the failure of the rice crop in not only an economic setback but can also create a famine-like situation. Wastage of rice is viewed rather badly in these societies and superstitions about the grain abound.
2. Objective
To predict the future production of rice from the available information and to study the relationship between the various factors affecting the rice production.
3. Data Analysis
From Figure 1, Figure 2 and Figure 3 data related to production, land used and irrigation with respect to the time period that is from the year 1950 to 2012 is shown.
3.1. Time Series AnalysisFrom this historical data it is easy to predict for future by using least square method of straight line and parabolic method and the interpretations are derived through the comparative study. Table 1 represents the which shows that 95% of the variation in production in India can be explained by the time factors or independent variable. Table 2 is the ANOVA where the significance of F is 0.000. This indicates that the model is statically significant at a confidence level 0f 95%. Table 3 shows the values of the trend line , where y is production and x is the time factor and it shows these two variables are statistically significant for the trend model as P-values are less than 0.05.
Table 4 represents the which shows that 97% of the variation in production of rice can be explained by the time factor or independent variable. Table 5 is the ANOVA where the significance of F is 0.000. This indicates that the Parabolic model is also statistically significant at a confidence level 0f 95%. Table 6 shows the values of the Parabolic trend line , where y is tourism and hospitality contribution and x is the time factor and it shows these two variables are statistically significant for the trend model as P-values are less than 0.05. Figure 8 represents the curve fitting of trend line and parabolic curve of Indian Tourism and Hospitality Contribution to GDP CAGR with respect to the time period.
Table 1. Model Summary of Fitting of a Straight Line of Production of Rice with respect to the Year from 1950-2012
Fitting of a Straight Line and Parabolic Method of Production, Land Used and Irrigation with respect to the Time Period from 1950-2012 are shown in the Figure 4, Figure 5 and Figure 6 respectively. From these figures it is concluded that for prediction parabolic method of least square is more flexible and appropriate than straight line method of least square.
3.3. Prediction of Rice Production, Land Used and Irrigation for the next 10 YearsFigure 7, Figure 8 and Figure 9 show the predicted values of production of rice in India, land used and irrigation in next 10 years respectively by using trend analysis and parabolic curve fitting respectively.
3.4. Multivariate Correlation and Regression AnalysisHypothesis
H01: Production, land used and irrigation are uncorrelated.
H11: Production, land used and irrigation are correlated.
Level of Significance: α% is 5%.
From Table 16 it is observed that production and land used are positively correlated with high degree, production and irrigation are also positively correlated with high degree and land used and irrigation are positively correlated with high degree. Since all P values are less than 0.05, so it may be concluded that all the variables like production, land used and irrigation are correlated with each other as we may reject the null hypothesis. So it is significant.
Hypothesis
H02: The model is statistically insignificant
H12:: The model is statistically significant
Level of Significance: α% =5%.
3.6. InterpretationTable 17 represents the which shows that 98.1% of the variation in production of rice in India for 63 years can be explained by the independent factors like land used and irrigation. Table 18 is the ANOVA where the significance of F is 0.000. This indicates that the model is statically significant at a confidence level of 95%.
Table 19 shows the multivariate regression model , where y is the production of rice in india, is the independent variable like land used and is other independent variable like irrigation. It shows the one variable like irrigation is statistically significant for the regression model as P-value is less than 0.05 but other variable like land used is statistically insignificant for the regression model as P-value is more than 0.05. The above analysis clearly reveals that the regression model fits well to this concern case. Hence using this model the future production level of rice in India can be easily predicted.
4. Conclusion
Rice is the main grain crop in India. India ranks second in the world in the production in the rice. Rice production is dependent mainly on fertile land, irrigation, suitable climate, use of fertilizers and manures, precipitation, temperature, quality of seeds, technology modern equipments for cultivation and man power. All these factors, if stand to be effective, it can contribute for an increased production of rice. Apart from this emphasis must be given on the proper management of the food grains with safety storage ensured. If the production level of rice increases then it will help in the economy growth of the country and the unutilized resources can be explored. Figure 10 shows the rice growing states of India. India can envisage a better scenario of agrarian economy with an enhanced production of rice. Steps should be taken to engage more man power for rice production.
4.1. LimitationsDue to insufficient data, only two factors of production were taken for studying.
The impact of technological advancement and use of high quality seeds were ignored.
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