Improving Ammonium and Nitrate Release from Urea Using Clinoptilolite Zeolite and Compost Produced from Agricultural Wastes

<div>Ammonium and nitrate leached at three-day interval over 30 days of leaching for T1, T2, T3, and T4 effects only.<i> Note</i>. T1: 64 g soil + 7.40 g urea (no additives); T2: 64 g soil + 7.40 g urea + 6 g clinoptilolite zeolite; T3: 64 g soil + 7.40 g urea + 1.54 g compost; T4: 64 g soil + 7.40 g urea + 1.54 g compost + 6 g clinoptilolite zeolite.<i> Note</i>. Bar represents standard error of the mean.</div>

The Scientific World Journal

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Figure 6

Figure 6: Improving Ammonium and Nitrate Release from Urea Using Clinoptilolite Zeolite and Compost Produced from Agricultural Wastes 