Abstract

A 2 year rainfed experiment consisting of intercropping of 3 legumes, black gram Vigna mungo (Linn) Hepper) pigeonpea (Cajanus cajun (Linn. Millsp.) and soybean Glycine max (linn) Merr.) in between wide (60 cm) and paired (30/60 cm) rows of sorghum (Sorghum bicolor (Linn). Moench) with 4 N levels i.e. 0.40, 80 and 120 kg/ha applied to sorghum crop showed that grain and straw yields of legume were higher in wide row inter cropping system as compared to paired row intercropping. Application of N to sorghum crop reduced pods/plant, grain weight/plant, grain and straw yield of black gram and pigeonpea while soybean remained unaffected. Maturity period of black gram and pigeanpea was also delayed by N application to sorghum crop.

Keywords: Legume Intercrops, Nitrogen, Sorghum, Effect