Effect of last date of cutting for fodder and foliar spray of phosphorus, growth regulating substance and photosynth material on the seed yield of berseem.

摘要

In field trials in 1984-86 at Karnal, Karnataka, berseem [Trifolium alexandrinum] cv. Mescavi was given the last cut for fodder on 5 or 20 March or 5 or 20 April and sprayed with water, NAA (as 4.5% w/w Planofix at 1.25 litres/ha), Paras (Photosynthat 0.625 litres/ha) or 600 litres/ha of a 3% solution of P2O5, 15 days later. Green fodder yield increased with delay in last cutting date until 5 April, whereas seed yield was highest when the last cutting date was 20 March. Spraying with P2O5 increased seed yield in 1986 compared with water spray.