Lovepreet Singh Sran, Baljinder Singh and Ramandeep Kaur
Abstract
The results of nitrogen dose of 140 kg/ha significantly show that plant height 20 DAS (13.41 cm), 40 DAS (29.85cm), 70 DAS (63.32cm), at harvest (96.63cm), test weight 41.76 gm. respectively. Spike length 11.67cm, grain yield 36.45 q/ha, Straw yield 69.89 q/ha harvest index (105.13%) was found significantly maximum with application nitrogen level N3 (120 kg N /ha). Significantly maximum plant height 20 DAS (13.21cm), 40 DAS (31.27cm), 70 DAS (68.95 cm), at harvest (100.95cm), spike length 11.57cm, grains per spike 48.10, test weight 43.73 gm, total produce 39 q/ha, grain yield 41.19 q/ha, Straw yield 79.21 q/ha and harvest index 105.63% was shown by I3 (Irrigation stress at booting stage). Interaction effect of N4 (140 kg N /ha) and I3 (irrigation stress at booting stage) treatments shows maximum plant height 20DAS (13.68 cm), 40DAS (34 cm), at harvest 102.33cm, total produce in 42.35 q/ha, cost of cultivation Rs. 27845/ha. Significantly higher value of plant height 70DAS, spike length 13.11cm, number of grain per spike 49.10, test weight 45.38 gm., number of grain per spike 49.10, grain yield 46.12q/ha, straw yield 85.27 q/ha, harvest index (110.61 %), gross return Rs. 97483.66/ ha, net return Rs.70235/ha and benefit cost ratio 3.55 was noticed in the interaction of nitrogen level N3 (120 kg N /ha) and I3 (irrigation stress at booting stage) treatments as compared with other treatments. The results of this study showed that 140kg N/ha treatment and irrigation stress at booting stage individually has a great potential to increase growth parameters and 120kg N/ha has maximum benefit in yield parameters in the crop. The combination of nitrogen (120 kg/ha) and irrigation stress at booting stage fetched the highest grain yield and benefit cost ratio from wheat in comparison to other treatments.