Effect of farmyard manure and phosphorus application on grain yield and economics of moongbean cultivation

At Hisar, field experiment was conducted with moongbean [Vigna radiata (L) Wilczek] during the kharif 2000–01 and 2001–02 to study the effect of various levels of farmyard manure-FYM (0, 5, 10 and 15 t ha⁻¹) and phosphorus (0,20,40 and 60 kg ha⁻¹) on grain yield and economics of its cultivation. Increasing levels of FYM improved the grain yield of moongbean. Among various levels of phosphorus, 60 kg P₂O₅ ha⁻¹ being at par with 40 kg P₂O₅ ha⁻¹ gave significantly higher grain yield than 20kg P₂O₅ ha⁻¹ and no phosphorus (control). Highest net returns and per cent increase in net returns over control were recorded with 10 t FYM and 40 kg P₂O₅ ha⁻¹ with benefit: cost ratio of 0.87 and 1.05, respectively.