Influence of seed rate and fertilizer levels on nutrient content. Uptake and soil fertility status in fodder cowpea production
Abstract
A field experiment was conducted at Main Agricultural Research Station, University of Agricultural Sciences, Dharwad (Karnataka), India during kharif 2011. A Seed rate of 50 kg ha−1 recorded significantly higher green forage yield (38.51 t ha−1), dry matter yield (5.34 t ha1) and nitrogen uptake (114 kg ha−1). A fertilizer level of 25 kg N and 50 kg P2O5 ha−1 recorded significantly higher green forage and dry matter yield (38.04 and 5.35 t ha−1), N and P contents (2.143 and 0.135%) and N and P uptake (114.6 and 16.9 kg ha−1). A treatment combination of 50 kg seeds ha−1 with 25 kg N and 50 kg P2O5 ha−1 recorded higher green forage and dry matter yield (39.72 and 5.52 t ha−1) and nitrogen uptake (118.5 kg ha−1) compared to other treatment combinations.
Keywords
Fertilizer levels, Nutrient content, Nutrient uptake, Seed rate, Soil fertility status