Department of Systems and Economics of Crop Production, Institute of Soil Science and Plant Cultivation – National Research Institute, Czartoryskich 8, 24-100 Pulawy, Poland
Bibliografia
Duer I., 2000. Agenda 2000 – the base for the development of Polish agriculture. Pam. Puł., 120(I): 65-71. (in Polish)
Harasim A., 2001. Indices for the assessment of regional diversifi cation of agri-culture. Pam. Puł., 124: 161-169. (in Polish)
Kopiński J., 2007. Bilans azotu brutto dla Polski i województw w latach 2002-2005. Stud. Rap. IUNG-PIB, 5: 117-131.
Kopiński J., 2010. Gross nitrogen balance as an agri-environmental indicator of the intensity changes in agricultural production. Adv. Agr. Sci. Probl. Issues, 547: 185-191. (in Polish)
Kopiński J., 2009. Evaluation of production and economic efficiency of farms with a different intensity of production against the background of selected agro-environmental indicators. Rocz. Nauk. SERiA, 11(1): 223-228. (in Polish)
Kuś J., Krasowicz S., 2001. Natural and organizational conditions of sustainable development of farms. Pam. Puł., 124: 273-288. (in Polish)
Łuczka-Bakuła W., 2006. Towards sustainable agriculture – from agro-environmental programs to cross-compliance. Zesz. Nauk. AR Wrocław, 540: 291-296. (in Polish)
Maćkowiak Cz., 1997. Bilans substancji organicznej w glebach Polski. Biul. Inf. IUNG, Puławy, 5: 4-5.
Mądra M., 2009. The role of fi nancial sources in individual farms investments. Rocz. Nauk. SERiA, 11(1): 273-278. (in Polish)
Parzonko A., 2005. Concentration changes of milk production in specialized dairy farms in chosen UE countries – analyse in period 1990-2002. Rocz. Nauk. SERiA, 7(1): 192-196. (in Polish)
Ziętara W., 2005. Main directions and possibilities of development in Polish dairy and pork farms. Rocz. Nauk. SERiA, 7(1): 300-305. (in Polish)