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... nano-zeolite scanned through SEM to know the surface morphology of nano-zeolite before loading of nutrients (Figure 1a). It showed that the nano-zeolite was typical cubic to round in shape. ...
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... morphology of nano-zeolite after attaching Zn ions, which showed there was slight change from original structure. After attachment of Zn ions there was a substantial reduction in surface area (Figure 1b). According to Kim et al. (2004) reported that zeolite, which is known as the best absorbent material for metals has the highest cation exchange capacity and shows high adsorption rates. ...
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... This result shows that nano zeolite can control the nutrient output according to the plant's needs during the growing period. Yuvaraj & Subramanian (2018) mentioned that modification of fertilizer with nano zeolite could reduce fertilizer loss due to evaporation and leaching. Zeolites could retain nutrients in the root zone, which could be released according to plant needs. ...
... Zeolites could retain nutrients in the root zone, which could be released according to plant needs. fertilizer formulations that help regulate the release of nutrients, increase fertilization efficiency, and prevent environmental harm (Yuvaraj and Subramanian, 2018). ...
Nanotechnology can be used to produce slow-release fertilizers. Zeolite and crab shells are materials that can be used as fertilizer encapsulation. This study aimed to compare the effects of nano zeolite and crab shells for encapsulation of nitrogen- potassium fertilizers tested on Entisols and Inceptisols soil on the growth and yield of shallots. The research method used a completely randomized design with three factors. The factors were soil type (Entisol and Inceptisol), coating materials (nano-zeolite and nano-crab shell), and NK fertilizer doses (125:50, 250:100, 375:150, and 500:200). The variables observed include initial soil physical and chemical properties, nanoparticle characterization, growth and yield, and agronomic efficiency. Nanoparticles were characterized using SEM and analyzed using ImageJ. The data collected were tested by ANOVA and Tukey. The ball milling method succeeded in producing 91.41% zeolite and 97.50% nano-sized crab shells. Plant height showed that using crab shells as fertilizer encapsulation with a dose of 125:50 gave better results. The yield of crab shells as encapsulation with a dose of 250:100 in inceptisols was better than that in entisols, but the highest agronomic efficiency (EA) was obtained in zeolite treatment as fertilizer encapsulation with a dose of 125:50.
