A field experiment was conducted during 1983 and 1984 to find out the most suitable weed control measure and intercrop combination of pigeonpea(Cajanus Cajan CL. )Millsp)and Green gram(Vigna radata(L.)Wilczek)for higher yield and suppressing the weeds effectively.
Growing one row of mungbean in pigeonpea spaced 50 cm produced significantly higher total equivalent yield of pigeonpea and smother the weeds effectively as compared with pigecnpea grown pure spaced 50 cm.
Increasing the row width of pigeonpea to 75 cm to plant one row of mungbean as intercrop did not help in increasing the total equivalent production of pigeonpea and there was also lesser weed suppression due to availability of more space for weeds to grow. Planting two rows of mungbean in pigeonpea spaced 75 cm helped to smother weeds effectively but excessive population of mungbean created an intense competition for pigeonpea,which in turn,suffered badly. The bioefficacy of Oxadiazon and Fluchloralin was comparable to manual weeding twice and proved effective against both grassy and broadleaf annual weeds.
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