Abstract

A field experinment was conducted at the Tamil Nadu Agricultural University. Coimbatore, during the winter seasons of 1988-89 and 1989-90 to study the effect of fast growing leguminous green manures viz, sunnhemp, luceme, cowpea and clitoria with three levels of nitrogen (40, 60 & 80 kg ha¹) in cotton under irrigagted conditions. The results revealed that growing and incorporation of all the green manures on 40 days after sowing increased seed cotton yield. Added levels of N also increased the seed cotton yield. It was also observed from the yield data that 25 per cent of the chemical N fertiliser can be reduced if the green manures are grown and incorporated in the cotton field.

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