[ANDRIST-RANGEL, Y. - EDWARDS, A.C. - HILLIER, S. - ÖBORN, I. 2007. Long-term dynamic of organic and conventional mixed cropping systems as related to management and soil properties. In Agriculture, Ecosystems and Environment, vol. 122, pp. 413-426. DOI: 10.1016/j.agee.2007.02.007.10.1016/j.agee.2007.02.007]Search in Google Scholar
[ANONYMOUS 2013. Zemědělství 2012 [Agriculture 2012]. Prague: Ministry of Agriculture of the Czech Republic. 126 pp. ISBN 978-80-7434-1 11-3.]Search in Google Scholar
[ASDAL, Å. - BAKKEN, A. 1999. Nutrient balances and yields during conversion to organic farming in two crop rotation systems. In OLESEN, J.E. - ELTUN, R. - GOODING, M.J. - JENSEN, E.S. - KÖPKE U. (Eds.). Designing and testing crop rotations for organic farming. Foulum: DARCOF, pp. 125-134.]Search in Google Scholar
[BLAKE, L. - MERCIK, S. - KOERSCHENS, M. - GOULDING, K.W.T. - STEMPEN, S. - WEIGEL, A. - POULTON, P.R. - POWLSON, D.S. 1999. Potassium content in soil, uptake in plants and the potassium balance in three European long-term field experiments. In Plant and Soil, vol. 216, pp. 1-14. DOI:10.1023/A:1004730023746.10.1023/A:1004730023746]Search in Google Scholar
[EDMEADES, D.C. - MORTON, J.D. - WALLER, J.E. - METHERELL, A.K. - ROBERTS, A.H.C. - CAREY P. 2014. The diagnosis and correction of potassium deficiency in New Zealand pastoral soils: a review. In New Zealand Journal of Agricultural Research, vol. 53, pp. 151-173. DOI:10.1080/00288233.2010. 482954.]Search in Google Scholar
[GRZEBISZ, W. - DIATTA, J. - HARDTER, R. - CYNA K. 2010. Fertilizer consumption patterns in Central European countries - effect of actual yield development trends in 1986-2005 years - a comparative study of the Czech Republic and Poland. In Journal of Central European Agriculture, vol. 11, no.1, pp.73-82. DOI:10.5513/JCEA01/11.1.809.10.5513/JCEA01/11.1.809]Search in Google Scholar
[HEJCMAN, M. - BERKOVÁ, M. - KUNZOVÁ, E. 2013. Effect of long-term fertilizer application on yield and concentrations of elements (N, P, K, Ca, Mg, As, Cd, Cu, Cr, Fe, Mn, Ni, Pb, Zn) in grain of spring barley. In Plant, Soil and Environment, vol. 59, no. 7, pp. 329-334.]Search in Google Scholar
[HUANG, P.M. 2005. Chemistry of potassium in soils. In TABATABAI, M.A. - SPARKS, D.L. (Eds.). Chemical processes in soils. Madison: SSSA, pp. 227-292. ISBN 0-891 18-843-6.]Search in Google Scholar
[KLÍR, J. - KUNZOVÁ, E. - ČERMÁK, P. 2008. Rámcová metodika výživy rostlin a hnojení [Frame methodology of plant nutrition and fertilization]. Prague: Crop Research Institute, 48 pp. ISBN 978-808701 1-61-4.]Search in Google Scholar
[MADARAS, M. - KOUBOVÁ, M. - SMATANOVÁ, M. 2014. Long-term effect of low potassium fertilization on its soil fractions. In Plant, Soil and Environment, vol. 60, 2014, no. 8, pp. 358-363.]Search in Google Scholar
[MARTIN, H.W. - SPARKS, D.L. 1985. On the behaviour of nonexchangeable potassium in soils. In Communications in soil science and plant analyses, vol. 16, pp.133-162. DOI:10.1080/00103628509367593.10.1080/00103628509367593]Search in Google Scholar
[MEHLICH, A. 1984. Mehlich-3 soil test extractant: a modification of Mehlich-2 extractant. In Communications in soil science and plant analyses, vol. 15, pp. 1409-1416. DOI:10.1080/00103628409367568.10.1080/00103628409367568]Search in Google Scholar
[MORITSUKA, N. - YANAI, J. - KOSAKI, T. 2004. Possible processes releasing nonexchangeable potassium from the rhizosphere of maize. In Plant and Soil, vol. 258, pp. 261-268. DOI:10.1023/B:PLSO. 0000016556.79278.7f.]Search in Google Scholar
[NEUBERG, J. 1980. Komplexní metodika výživy rostlin [The Complex Methodology of Plant Nutrition]. Prague: UVTIZ, 327 pp.]Search in Google Scholar
[ÖBORN, I. - ANDRIST-RANGEL, Y. - ASKEKAARD, M. - GRANT, C.A. - WATSON, C.A. - EDWARDS, A.C. 2005. Critical aspects of potassium management in agricultural systems. In Soil Use and Management, vol. 21, no.1, pp. 102-112. DOI:10.1111/j.1475-2743.2005. tb00114.x.]Search in Google Scholar
[ØGAARD, A.F. - HANSEN, S. 2010. Potassium uptake and requirement in organic grassland farming. In Nutrient Cycling in Agroecosystems, vol. 87, no. 1, pp.137-149. DOI:10.1007/s10705-009-9320-5.10.1007/s10705-009-9320-5]Search in Google Scholar
[ØGAARD, A.F. - KROGSTAD, T. 2005. Release of interlayer potassium in Norwegian grassland soils. In Journal of Plant Nutrition and Soil Science, vol. 168, pp. 80-88. DOI:10.1002/jpln.200421454. 10.1002/jpln.200421454]Search in Google Scholar