Optimizing nitrogen application rates for green forage yield and quality of oat (Avena sativa L.)
2016
Ali, I.
Nitrogen application rates can be helpful in increasing fodder yield and improving quality of oat cultivars. Therefore, a field trial to evaluate the optimizing nitrogen' application rates for green forage yield and quality of oat (Avena sativa L.) was carried out at Agronomic Research Area, University of Agriculture, Faisalabad during Rabi season 2014-15. The experiment was laid out in Randomized Complete Block Design (RCBD) with factorial arrangements using three replications. The net plot size was 3 m x 5 m. The experiment was comprised of two integrated approaches. First approach was oat cultivars consisting of two treatments, V1 (Scott), V2 (S-2000) and second approach was nitrogen application rates consisting of seven treatments, N0 (control), N1 (50 kg N per ha), N2 (60 kg N per ha), N3 (70 kg N per ha), N4 (80 kg N per ha), N5 (90 kg N per ha) and N6 (100 kg N per ha). The crop was sown with hand drill keeping row to row distance 25 cm using seed rate of 75 kg per ha. Fisher's analysis of variance technique was used for statistically interpretation of data by using least significant difference (LSD) test at 5% level of probability. The maximum green forage yield (84.90 t per ha), dry matter yield (14.16 t per ha) and crude protein (11.57 %) were recorded in treatment V1N4 where 80 kg N per ha was applied in the variety Scott. This increase in yield was mainly due to greater plant height, leaf to stem ratio, number of leaves per tiller and leaf area per tiller. It is concluded that oat cultivar Scott grown with 80 kg N per ha performed better under agro-ecological conditions of Faisalabad. The maximum net profit (Rs. 86571.9 per ha) and benefit cost ratio (2.74) was given by the cultivar Scott with application of 80 kg N per ha.
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