Marković, JordanVasić, T.Andjelković, SnežanaPetrović, MirjanaBekčić, FilipLazarević, ĐorđeBabić, Snežana2025-06-302025-06-302020-10-0897 8-99976-787-5-1https://rifoc.ikbks.com/handle/123456789/184М 33 Саопштење са међународног скупа штампано у целиниCalcium and phosphorus are particularly important for animal health. The dietary levels of Ca and P should be balanced to increase their availability and utilization. The research was conducted at Institute for forage crops Kruševac in 2015-2016 to determine the effects of seeding rates in mixtures of pea : oat and common vetch : oat and cutting stages on the Ca and P content, as well as Ca : P ratio. The experiment was performed using five different mixture rates of pea and oat crops, five different mixture rates of common vetch and oat crops and three different cutting stages (beginning of pea and common vetch flowering – 10% of flowering, forming the first pods on 2/3 pea and common vetch plants and forming green seeds in 2/3 pods). Results of investigation showed that Ca content was the highest at the forming the first pods on 2/3 pea and common vetch plants, while phosphorus content increased from 2.70 to 3.40 g kg-1 with common vetch growth and development and from 2.57 to 3.10 g kg-1 with pea growth and development. Pure sown common vetch and pea were characterized by the highest average Ca and P content. Ca : P ratio decreased with plant growth and development in pea : oat mixtures, as well as in common vetch : oat mixtures. The highest Ca : P ratio was recorded in pure sown common vetch and pure sown pea, whereas the lowest Ca : P ratio was recorded in pure sown oat.enCC0 1.0 Universalhttp://creativecommons.org/publicdomain/zero/1.0/calciumphosphorusCa : P ratiopeacommon vetchoatconferenceObject