Factor analysis of indexes for the harvest change of agricultural plants
2006
Ciuleviciene, V.(Lithuanian Univ. of Agriculture, Akademija, Kauno reg. (Lithuania)) | Siuliauskiene, D.(Lithuanian Univ. of Agriculture, Akademija, Kauno reg. (Lithuania))
In this article theoretical and practical aspects of factor index analysis are examined. On the basis of the index theory the main principles of application of this method and problems are formulated. Considerations how to harmoniously join the forms of absolute and index analysis are mentioned, and the problem of choosing weighted price indexes is discussed. Grain we can get from different cereals and pulses; winter and summer wheat, winter ray, barley oats and others. The total harvest of the grain is a sum of different grain crops. The yield of the grain crops by year and crops differs. Some of them - winter wheat, winter barley, summer wheat, winter hybrid of rye and wheat are more productive - the yield per hectare is about 4 tons, but others - especially pulses for grain are not too much productive. There are big differences in the areas of grain crops and in their percentage in the total area of grain crops.
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