Advanced Nitrogen Management: Effects of Nano-Coated Urea on Nitrogen Leaching in Loam
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Abstract
Urea fertilization with controlled release techniques is one effective way to reduce nitrogen loss. One of the techniques to slow down nitrogen release and increase fertilization efficiency is the use of Controlled Release Fertilizer (CRF), using Nano-Coated Urea (NCU) technology. The purpose of this study was to analyse the effec of coated urea application in reducing nitrate leaching rate and improving urea fertilization efficiency in loamsoils. The materials used as urea coatings are Bentonite which are modified into nano-sized particles. The study uses an incubation method with a lysimeter tube and destructive soil sampling to analyze the nitrogen available in the soil and the leached nitrogen. The results showed that there was an increase in soil nitrogen concentration inn the LMC2 treatment (urea coating bentonite) by 28,05% and in the LMC3 treatment (urea coating nano bentonite) by 35,61%.
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