Qualitative traits of various Egyptian clover varieties under efficiency of bio-chemical phosphorus fertilization and lithovit regimes

إنجليزي. Received: August 3rd, 2022 ; Accepted: October 19th, 2022 ; Published: November 1st, 2022 ; Correspondence: [email protected]

إنجليزي. This investigation was performed at the Agriculture Research Station, Faculty of Agric.Zagazig Univ., Sharkia Governorate, Egypt, throughout the winter seasons of 2019/2020 and2020/2021. The study aimed to evaluate the influence of ten bio-chemical fertilization and lithovitregimes on forage quality of 1st and 3rd cuts of various Egyptian clover varieties (Berseem,Trifolium alexandrinum L.) q.e. Helaly, Gemmeza 1, Sakha 4, Serw 1, Giza 6 and local variety.The ten fertilization regimes were F1, control; F2, chemical phosphorus 15.5 P2O5 kg fad-1;F3, bio-phosphorus fertilizer ‘phosphorein’; F4, 50% of F2 + phosphorein; F5, 25% of F2 +phosphorien; F6, F2 + lithovit; F7, F3 + lithovit; F8, F4 + lithovit; F9, F5 + lihtovit; F10, sole lithovit.Giza 6 Egyptian berseem variety ranked first in forage quality because of its high content of eachCP (%), NFE (%), TDN (%), and DP (%) in the 3rd cut. The local berseem variety ranked the leastover the six Egyptian clover varieties with the highest ash (%) in the 1st cut. Other varieties werein between. Allusion to the bio-chemical phosphorus fertilization and lithovit regimes, applicationof any phosphorus fertilization regimes surpassed the control treatment in most nutritive values.Application of F9 fertilization regime (25% chemical P + bio-fertilizer ‘phosphorien’ +nano-fertilizer ‘lithovit’) tended to produce high forage quality with high content of CP (%) inthe 1st cut, TDN (%) in both 1st and 3rd cuts as well as DP (%) in the 1st cut.