Penyerapan limbah uranium pada beberapa fase pertumbuhan padi varietas IR-36

The uptake of U-waste on growing periods of IR-36 veriety were carried out. seeds of IR-36 rice veriety were grown in pot container which filled with soils. After the age of plant was 21 days, U-waste added to the soils with volume variation as follow K (0 nppm U), 100 ml (970 ppm U), 200 ml (1940 ppm U) / pot. Samples of plant was collected on some growing periods plant i.e. tillering (35 days old), pre-flowering (65 days old), flowering (90 days old) and the fructification (120 days old). Concentration of uranium in some growing periods of plants were analyzed with polarographic methods. The experimental results whowed that the absorption of U-waste on tillering, pre-flowering, flowering and fructification were 0,50 ppm,1,10 ppm, 2,80 ppm and 2,90 ppm on 100 ml (970 ppm U) U-waste treatment. And the 2,95 ppm, 4,10 ppm, 6,00 ppm and 6,10 ppm on 220 ml (1940 ppm U) U-waste treatment.