EFFECT OF NITROGEN LEVELS AND TIME OF APPLICATION ON
GROWTH, YIELD, QUALITY, NITROGEN, PHOSPHORUS
CONTENT AND UPTAKE FOR SEED PRODUCTION
OF OAT (AVENA SATIVA L.)
R. V. JOSHI, B. J. PATEL AND K. M. PATEL
Department of Agronomy
S. D. Agricultural University,
Sardarkrushinagar-385 506 (Gujarat), India
*(e-mail : patelkunjal5@gmail.com)
(Received : 27 July 2015; Accepted : 25 September 2015)
SUMMARY
A field experiment was conducted during rabi 2014 at Agronomy Instructional Farm, C. P. College of Agriculture, Sardarkrushinagar Dantiwada Agricultural University, Sardarkrushinagar to study the effect of nitrogen levels and time of application on seed production of oat (Avena sativa L.). The soil of experimental plot was loamy sand in texture with low in organic carbon and available nitrogen, medium in available phosphorus and high in potash having pH value of 7.8. Total nine treatment combinations comprising three levels of nitrogen viz., 60 kg N/ha (N1), 90 kg N/ha (N2) and 120 kg N/ha (N3) and three times of nitrogen application (T1 : Two equal splits at basal and 30 DAS, T2 : Three splits : 50% at basal, 25% each at 30 and 45 DAS and T3 : Three equal splits at basal, 30 and 45 DAS) with factorial concept laid out in four replications. The results revealed that the higher production of oat and net realization could be achieved with the application of 90 kg N/ha with three equal splits of N i. e. at basal, 30 and 45 DAS or three equal splits of N i. e. 50 per cent at basal, 25 per cent each at 30 and 45 DAS during rabi season in loamy sand soil of north Gujarat agro-climatic condition.
Key words:Oat, nitrogen levels, time of application