Visibility of ragi seeds(Elensine coracano):In Visakhapatnam district.in wetlands it is customary to grow a crop of ragi (earlly)in May-August season proceeding the main paddy crop and another crop(late)in December-April,succeeding the paddy crop.At the Sugarcane Research Station,Anakapalli in 1945-1946 certain fields were cropped with early ragi.These fields were planted to paddy and after its harvest the land was prepared to take in the late ragi.Soon these operations the fields were found to be covered with ragi seedlings.These could not have been due to seeds carried in the manure since other fields manured from the same heap were entirely free from rgi seedlngs.The only source then was from the early ragi preceding the paddy.It was however,doubted whether the ragi seeds shed in field could live through the puddled submerged condition prevailing during the period of the paddy crop.
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