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Data Sources And Methodology Of Agriculture Essay

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Chapter 3
Data Sources and Methodology
Introduction
The present research which is designed to study the cropping pattern of the Punjab during the period of 2000-2013, encompasses the crops area and production of major crops, seasonal variation, mapping the cropping pattern, identified the factors, problems in crop cultivation. Major crops was selected for the identification of cropping from both seasons as Rice, Cotton, Sugarcane, Maize, Bajra and Jawar area the major crops of Kharif season and Wheat and Barley are the major crops of Rabi season and these crops account 25.24% of agricultural value addition (ESOP, 2013-14). Data is collected through secondary data collection methods and a variety of analytical techniques are used to cover all …show more content…

Area under each crops as percentage to total the cropped area by districts are calculated. Percentages of all crops production by total production of Punjab are calculated. Yield is calculated for all selected crops.
Crop Combination Methods
Crop combination method is used to identify the changes in cropping pattern. It has been pointed out first by weaver in 1954 and then modified by Thomas, Coppock, Jasbir Singh and others. (Singh Jasbir, 1976) researcher used Weaver’s Method and Thomas Model modification in weaver’s method.
Weaver’s Methods
In Weaver's method the crop combination is measured by calculating the deviation of real percentages of crops (occupying over 1% of the cropped area) for all possible combinations in the component areal units against a theoretical standard. The theoretical curve for the standard measurement was employed as follows:
Monoculture = 100 percent of the total harvested crop land in one crop.
2- Crop combination = 50 percent in each of two crops
3- Crop combination = 33.33 percent in each of three crops
4- Crop combination = 25 percent in each of four

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