other two: the average wheat yield and the wheat production area displayed a significant positive effect on the variability …The paper presents an analysis of wheat yields variability in the voivodeships of Poland. The main aim of the study was … to find out what are the statistical relationships between the wheat yield variability and the following factors: arable …

to present several possible indicators for the crop variability in the context of production risk. It is found that …The paper presents an analysis of the wheat yields variability in voivodeships of Poland. The main aim of the study is … ignoring the long-term yield trends leads to a serious overestimation of production risk. …

fertilizers in these countries. It describes the evolution of production, foreign trade and consumption of mineral fertilizers and … balance. The study showed that the growing demand for mineral fertilizers in China has caused an increase in production to a … similar growth rate in demand for mineral fertilizers has caused a slight increase in production, while imports had to be …

production in developing countries and increased demand for pork meat as a result of population growth, increasing affluence of …. The aim of the paper is to present the current situation in the production and foreign trade of pigs in the world and to …

Polish production and consumption. An analysis of changes in production and consumption of alcoholic products shows their … changing trends in the period of 1990-2007. In the last years it shows a distinctly growing trend of production and consumption …

The paper discusses selected aspects of vegetable oils production competitiveness in a global context. Three major … meal content as well as meal and oil yields. The levels of production and use of vegetable oils were characterized. The … duality of the oil raw materials production was discussed. The production costs of oil raw materials in different regions of …

Poland is presented in the paper. The impact of larger exports and imports on the tendencies in production of fresh and … to the domestic production and supply of horticultural products. / Synopsis. W artykule przedstawiono zmiany eksportu i …

An analysis, based on empirical data for the period of 1990-2011, presents changes in production, consumption and …

of development of production, processing and trade of rape and products of its processing. Poland has become a part of …