Plant productivity and characterization of zeoponic substrates after three successive crops of radish (Raphanus sativus L.)

Gruener, J. E.; Ming, D. W.; Galindo, C.; Henderson, K. E.; Golden, D. C.

doi:10.1016/j.micromeso.2007.04.016

Cited by 7 publications

(11 citation statements)

References 18 publications

(16 reference statements)

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“…These results are in agreement with findings of Valente et al (1986) for tomato, by Notary-Del-Pino et al (1994) for alfalfa, by Allen et al (1995) for wheat, by Williams & Nelson (1997) for chrysanthemum, by Harland et al (1999) for pepper, by Gül et al (2005) for lettuce, by Gruener et al (2007) for radish, and by Bernardi et al (2008) for Rangpur lime rootstock.…”

Section: Resultssupporting

confidence: 91%

“…These results were similar to those of Williams & Nelson (1997), who observed a considerable increase in K extracted by chrysanthemum over the control, which was treated with nutrients in solution form only. However, the K amount extracted here was greater than found by Gruener et al (2007), who observed that the zeoliteenriched substrate still contained 52 % of NH 4 + -N and 78 % of the original K in the mineral exchange complex after three successive radish crops. This concentration also exceeded that reported for wheat growth on a zeolite-enriched substrate in which approximately 80 % of NH 4 + -N and K remained in the exchange complex after harvesting (Lai & Eberl, 1986).…”

Section: Resultscontrasting

confidence: 77%

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Dry matter production and nutrient accumulation after successive crops of lettuce, tomato, rice, and andropogongrass in a substrate with zeolite

Bernardi

Monte

Paiva

et al. 2010

Rev. Bras. Ciênc. Solo

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SUMMARYZeolites are hydrated crystalline aluminosilicate minerals of natural occurrence, structured in rigid third dimension net that can be used as slow release plant-nutrient source. The main objective of this study was to evaluate the effects of plant growth substrate under zeolite application, enriched with N, P and K, on dry matter yield and on nutrient contents in consecutive crops of lettuce, tomato, rice, and andropogon grass. The experiment was carried out in a greenhouse, with 3 kg pots with an inert substrate, evaluated in a randomized block design with three replications. Treatments consisted of four types of enrichment of concentrated natural zeolite: concentrated zeolite (Z) only, zeolite + KNO 3 (ZNK), zeolite + K 2 HPO 4 (ZPK) and zeolite + H 3 PO 4 + apatite (ZP), and a control grown in substrate fertilized with a zeolite-free nutrient solution. Four levels of enriched zeolite were tested: 20, 40, 80, and 160 g/pot. Four successive crops were grown on the same substrate in each pot: lettuce, tomato, rice, and andropogon grass. Results indicated that N, P and K enriched zeolite was an adequate slow-release nutrient source for plants. The total dry matter production of above-ground biomass of four successive crops followed a descending order: ZP > ZPK > ZNK > Z.Index terms: stilbite, Lactuca sativa, Lycopersicum esculentum, Oryza sativa, Andropogon gayanus, slow-release fertilizer, growth substrate.(

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Section: Resultssupporting

confidence: 91%

Section: Resultscontrasting

confidence: 77%

Dry matter production and nutrient accumulation after successive crops of lettuce, tomato, rice, and andropogongrass in a substrate with zeolite

Bernardi

Monte

Paiva

et al. 2010

Rev. Bras. Ciênc. Solo

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“…[ 93 ] In a follow‐up test, it is found that zeolites can produce greater crop yield in each successive growing cycle. [ 94 ] Despite NASA successfully demonstrating the use of zeolites as growth medium, this did not takeoff in the agriculture scene. Instead, the focus since then was on the zeolites as a soil additive only rather than in a full zeoponic system.…”

Section: Novel Materials Concepts For Urban Farmingmentioning

confidence: 99%

Novel Materials for Urban Farming

Zhang

et al. 2021

Advanced Materials

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Scarcity of natural resources, shifting demographics, climate change, and increasing waste are four major challenges in the quest to feed the exploding world population. These challenges serve as the impetus to harness novel technologies to improve agriculture, productivity, and sustainability. Urban farming has several advantages over conventional farming: higher productivity, improved sustainability, and the ability to provide fresh food all year round. Novel materials are key to accelerating the evolution of urban farming – with their ability to facilitate controlled release of nutrients and pesticides, improved seed health, substrates with better water retention capability, more efficient recycling of agricultural waste, and precise plant health monitoring. Materials science enables environmental sustainability and higher harvest yields in urban farms. Here, Singapore is used as an example of a land‐scarce city where urban farming may be the solution for future food production. Potential research directions and challenges in urban farming are highlighted, and how material optimization and innovation drive the development of urban farming to meet national and global food demands is briefly discussed. This review serves as a guide for researchers and a reference for stakeholders of urban farms, policy makers, and other interested parties.

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“…Zeolites have high specific surface areas, ion‐exchange abilities and possess a nanoporous structure, which make them attractive for use in slow‐release fertilizers for plants because of the slow‐release of cation in the zeolite cages . Clinoptilolite and mordenite exist in nature and zeolite NaP1 can easily be synthesized from various wastes containing silicon and aluminum using an alkaline hydrothermal treatment .…”

Section: Introductionmentioning

confidence: 99%

“…The uses of synthetic apatite as a fertilizer with phosphate ions have been reported by a few researchers . The use of mixtures of natural zeolite and synthetic apatite (zeoponic) have also been proposed as a solid medium for growing plants and as a fertilizer material …”

Section: Introductionmentioning

confidence: 99%

Preparation of a zeolite NaP1/hydroxyapatite nanocomposite and study of its behavior as inorganic fertilizer

Watanabe

Yamada

Ikoma

et al. 2013

J. Chem. Technol. Biotechnol.

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BACKGROUND: A number of inorganic fertilizers have been used as a slow-release fertilizer for plants but control of release rates of nutrient ions can be difficult. We have prepared a novel slow-release inorganic fertilizer consisting of zeolite NaP1/hydroxyapatite nanocomposite containing the following nutrient ions: 17.4 mg g -1 of ammonium ion, 54.6 mg g -1 of potassium ion and 24.1 mg g -1 of phosphate ion. The release behavior of nutrient ions were evaluated in distilled water. RESULTS: Zeolite NaP1 was synthesized from coal fly ash by alkaline hydrothermal treatment. The zeolite surfaces were then covered with hydroxyapatite needle-like crystals of about 200 nm diameter by a hydrothermal treatment of the calciumexchanged zeolite NaP1 in a mixed solution of potassium and ammonium phosphates at 40 • C for 8 h. The release behavior of the nanocomposite was evaluated by measuring the release into distilled water of nutrient ions over the long term. Phosphate ions were slowly released by the dissolution of HA in water, ammonium and potassium ions by cation exchange with calcium co-dissolved with phosphate. CONCLUSION: The zeolite NaP1/hydroxyapatite nanocomposite obtained is very useful as an inorganic fertilizer which can release nutrient ions over a long time.

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Plant productivity and characterization of zeoponic substrates after three successive crops of radish (Raphanus sativus L.)

Cited by 7 publications

References 18 publications

Dry matter production and nutrient accumulation after successive crops of lettuce, tomato, rice, and andropogongrass in a substrate with zeolite

Dry matter production and nutrient accumulation after successive crops of lettuce, tomato, rice, and andropogongrass in a substrate with zeolite

Novel Materials for Urban Farming

Preparation of a zeolite NaP1/hydroxyapatite nanocomposite and study of its behavior as inorganic fertilizer

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