EFFECT OF PRE RICE MANAGEMENT PRACTICES ON GROWTH AND YIELD OF POST RICE GREENGRAM (VIGNA RADIATA L. WILCZEK)

Greengram was raised immediately 1 week after the harvest of rabi rice in the same undisturbed
lay out for two consecutive years, to find out the residual effect of puddling, water and weed
management practices imposed to preceding rice on growth and yield of succeeding greengram.
Germination percentage, root and shoot length, dry matter production, seed and haulm yields of
succeeding greengram were recorded the highest values in normal puddling plots with irrigation at
1 day after disappearance of ponded water or continuous submergence imposed to preceding rice
and both the treatments were on par with each other. Significantly the lowest values of the above
growth parameters and yield of post rice greengram were recorded in intensive puddling plots with
continuous submergence or irrigation at 1 day after disapperance of ponded water imposed to
preceding rice due incresed bulk density on dying of the soil ,which may restrict the root growth
eventhough these intensive puddling plots recorded lower weed dry weight in greengram. Weed
management practices employed for preceding rice were not statistically traceable with respect to
bulk density of the soil, growth and yield of succeeding greengram. It was concluded that normal
puddling treatments imposed to preceding rice recorded the better growth parameters and yield of
succeeding greengram than intensive puddling treatments, irrespective of the water management
practices followed for preceding rice, however the highest rice grain yield and rice equivalent yieds
were recorded with intensive puddling treatments.