Performance of Various Lathyrus Entries under Different Level of Phosphorus Doses

Abstract

AVT trial on lathyrus was conducted during rabi 2022-23 at the ICR farm, Assam Agricultural University, Jorhat, Assam. The aim of the experiment was to assess the performance of different lathyrus entries with level of phosphorus. In the trial, five entries (JCL-21-1, JCL-21-3, IPLa 2021-01, IPLa 2021-03 and KL-5) along with two national checks (Mahateora, Prateek) were evaluated for their responsiveness to phosphorus fertilizer. The three phosphorus levels (40, 60 and 80 kg /ha) were imposed on entries to see the response. The entire dose of phosphorus was applied in strip as basal near to crop. The experiment was conducted in split plot design with entries in main plot and replicated thrice. In terms of green fodder yield, entry KL-5 achieved a significantly higher green fodder yield (208.00 q/ha), which is on par with IPLa 2021-01, demonstrating a 17.05% increase over the performance of the best-performing national check, Mahateora. In terms of both dry matter yield and crude protein yield, entry KL-5 stood out with a significantly higher dry matter yield of 37.44 q/ha and a crude protein yield of 4.01 q/ha. Application of 80 kg phosphorus per hectare produced 175.4q/ha green fodder yield, 175.4q/ha dry matter yield with plant height of 58.06 cm.