BIKINI N, P, K EXPERIMENT The purpose of this experiment is to determine under field conditions whether significant additions of potassium (K) to the atoll environment would reduce the uptake of 137CS into a major food crop such as coconut. Three separate experiments are underway. that the uptake of 137CS is definitely 600 lbs per acre per year. Results from the first two indicate reduced by adding K at rates of about The 137CS concentration in coconut on Eneu Island has been reduced below the natural 40K concentration to be determined of application how long this effect will last. and the rate of application in coconut. It is still In other words, the frequency to produce and maintain the effect must still be evaluated and will take two to three years. In addition, we still do not know to what level the 137CS concentration Bikini Island can be reduced where concentrations Island. A continued on are ten times those on Eneu sampling over the next two years will resolve this issue.