Sreedharan, CMadhava, Chandran KKAU2020-01-132020-01-131984http://krishikosh.egranth.ac.in/handle/1/5810140284PGAn experiment was conducted in sandy soils of the Agronomic Research Station, Chalakudy during the first crop season (Kharif) of 1982. The efficiency of azolla for weed control in rice ecosystem was investigated in order to find out a suitable alternative to the traditional weed control methods used in rice cultureennullThesis