Field experiment was carried out at Instructional Dairy Farm, G B pant University of Agriculture & Technology, Pantnagar during winter season of 2017-18 to study the effect of cultivars and phosphorus level on yield and quality of berseem (Trifolium alexandrinum L.). Berseem variety BB-2 gave significantly higher green and dry fodder yield and closely followed by varieties Mescavi and PC-82. The crude protein content was
also recorded higher in BB-2 but NDF and ADF were lower than other berseem varieties. The phosphous application @ 100kg/ha produced significantly higher green and dry fodder yield that was 4.8% and 4.7%
greater than 80 kg P levels, respectively. The leaf:stem ratio, crude protein content, NDF and ADF were not influenced significantly by phosphorus levels. Therefore it can be concluded that ‘BB-2’ can be grown at application of 100kg P/ha for higher productivity in Tarai region of Uttarakhand.

Keywords: Cultivar and Phosphorus, Yield and Quality, Berseem