Abstract: this research studies the effects of nitrogen release from compost fills the air with rice. Sweet corn plants and soil sample set guards in the test. In this test, experiment, Complete Block (RandomizedRCB) the experiment is a 6 Experiment 4 replications. The samples of soil were analyzed from the start to grow until the age 60 day soil sampling Mavi analysis every 15 days to analyze. Soil organic matter (Organic, meterOM) pH value (pH) and electrical conductivity (Electrical conductivity EC), quantity of ammonium (NH4) and nitrate (NO3 -), which from the result showed that test is 3 ratio compost fills the air 0.5 kg. Soil 10 kg
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