2013
DOI: 10.1016/j.micromeso.2012.06.051
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Brazilian sedimentary zeolite use in agriculture

Abstract: Dedicated to Prof. Carmine Colella on the occasion of his 70th birthday. a b s t r a c tThis report describes the characterization and application of the Brazilian zeolitic sedimentary rocks as a slow plant-nutrient fertilizer and soil conditioner. The characterization of the head samples showed that it is composed of the zeolite stilbite intertwined with a smectic clay mineral, mixed with quartz. A lowcost quartz separation gravitational technique was used to concentrate the mineral. An enrichment of concentr… Show more

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Cited by 89 publications
(43 citation statements)
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“…The main action of zeolite in partial reduction of NH 3 loss by volatilization occurs by the control of retention of ammonium ion, formed by urea hydrolysis in the soil, due to zeolite high cation exchange capacity and ammonium retention from soil solution [36] [39] [40]. N inputs from fertilizers increase ) and three ratios of zeolite (25%, 50% and 100% of N level).…”
Section: Results Of Field and Laboratory Studiesmentioning
confidence: 99%
“…The main action of zeolite in partial reduction of NH 3 loss by volatilization occurs by the control of retention of ammonium ion, formed by urea hydrolysis in the soil, due to zeolite high cation exchange capacity and ammonium retention from soil solution [36] [39] [40]. N inputs from fertilizers increase ) and three ratios of zeolite (25%, 50% and 100% of N level).…”
Section: Results Of Field and Laboratory Studiesmentioning
confidence: 99%
“…Increasing evidence shows that zeolite mixed with chemical fertilizer applied to soil enhances P uptake in plants [16,65,66], which was confirmed in our study with the increases in soil available P and APU in zeolite-amended soil (Table 3; Table 4) and consistent with the results of Hua et al (2006) [67] and Li et al [68]. In the present study, the positive effect of zeolite on soil P availability might be related to the amelioration of soil pH and decrease of the exchangeable soil Al, which result in less P being fixed by metal oxyhydroxides [21].…”
Section: Effect Of Irrigation and Zeolite Application On P Uptakementioning
confidence: 99%
“…This could imply that the amounts of zeolite used in these experiments were not adequate to significantly increase the growth of wheat plants, especially considering that the amounts of nitrogen amount added to the pots ranged from 1 kg/ha to 6 kg/ha when the recommended amount for wheat is 125 kg/ha [56]. The addition of larger amounts of saturated zeolite was not possible due to the spatial confines of the small, laboratory-scale experiments and to previous suggested zeolite masses per kg of soil in previous related studies [43][44][45][46].…”
Section: Effect Of Zeolite On Plant Growthmentioning
confidence: 90%
“…Only a few studies [43][44][45][46][47][48] have examined the use of saturated zeolite as a potential fertilizer replacement, and these mainly used nutrient-rich aqueous solutions to saturate zeolite with nitrogen and phosphorus. For example, (a) saturated zeolite with phosphorus [43,45] that increased the growth of lettuce, tomato, rice, and Andropogon grass by 20%; (b) saturated zeolite with urea [44] that increased silage corn's dry-matter leaf production; (c) saturated zeolite with potassium nitrate [46] that increased lettuce yield; (d) saturated zeolite with ammonium and potassium [47] to increase spinach yield; and (e) zeolite enriched with cations in soilless cucumber cultures [48].…”
Section: Introductionmentioning
confidence: 99%