The results of the three years INP sequence study revealed the possibility of raising three crops in the sequance of groundnut - blackgram- gingelly or cumbu soybean or blackgram - gingelly under rainfed conditions, when the monsoon is early and well distributed. When monsoon is erratic raising of two crops in the sequences of groundnut + redgram or groundunt - mustard, or cumbu-soybean or cumbu-mustard were found to be ideal. Raising of second crop of rainfed groundnut after the harvest of July sown kharif groundnut was not economical. Simultaneous sowing of redgram as an intercrop in groundnut in 6:1 proportion gave better yield and net return (Rs.5163/ha) during normal as well as erratic monsoon years.
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Tamil Nadu Agricultural University
Coimbatore - 641 003
Tamil Nadu, India.
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