RATNA PRAVA SAMAL, GANGADHAR NANDA*, MUKESH KUMAR AND ABDUS SATTAR
Department of Agronomy, PG College of Agriculture, RPCAU, Pusa-848125 (Bihar), India
Centre for Advanced Studies on Climate Change, RPCAU, Pusa-848125 (Bihar), India
*(e-mail : gnanda@rpcau.ac.in)
(Received : 10 March 2023: Accepted : 30 March 2023)
SUMMARY
Genotypes, environmental conditions and their interaction plays an important role for time needed to attain anthesis and thereby affect forage yield potential. Therefore, a field study was carried out in the Rabi season of 2021-22 at Dr. Rajendra Prasad Central Agricultural University, Pusa,
Samastipur, Bihar. The experiment was conducted using a split plot design with three varieties (Kent,
JHO-822 and Local) in main-plots and four different sowing dates (15th November, 25th November, 5th December and 15th December) in sub-plots with three replications. The results obtained from the experiment showed that JHO-822 recorded 9.4 and 29.6% higher green and dry fodder yield than local variety. The highest N, P and K uptake, crude protein yield and economic parameters like net return and B: C ratio was noted with JHO-822. Among, the different sowing dates, 15th November recorded the highest green and dry fodder yield and N and K uptake. With advancement of sowing dates, crude
protein content and ash content increased but for crude protein yield and ash yield it was just the
reverse. Fodder oat sown on 15th November recorded the maximum net return and B: C ratio.
Key words: Fodder oat, date of sowing, productivity, economics, quality