Zeolite with the best price, quality relationship

Consistent International Trial Results

Zeolite has been trialed under a wide range of growing conditions in various parts of the world. These trials have ranged from glasshouses to intensive vegetable growing. All trials have given consistently good commercial results with soil and nutrient efficiency improvements. Trials have been undertaken under both organic and inorganic growing processes and, more importantly, using a range of fertilizer options.

Results of Carrot Trial at Frankston, Australia

  1. 1. Carrots on the left without Zeolite
  2. 2. Carrots on the right with Zeolite

Natural zeolites are used extensively in Japan as amendments for sandy, clay-poor soils (Minato H 1968, Koatsu Gasu 5:536547). The pronounced selectivity of clinoptilolite NH4 + and K+ also was exploited in Japan in slow-release chemical fertilizers. By using clinoptilolite-rich tuff as a soil conditioner, significant increases in the yields of wheat (13–15%), eggplant (19–55%), apples (13–38%), and carrots (63%) were reported when 4–8 tonne/acre zeolite was used (Torii K Sand L B, Mumpton F A 1978, in Natural Zeolites: Occurrence, Properties, Use, eds Sand L B, Mumpton F A (Pergamon, Elmsford, NY), pp 441450. )

The addition of clinoptilolite increased barley yields (Van Bo N (1988) Soviet Agric Sci 12:6264). It also increased the yields of potatoes, barley, clover, and wheat after adding 15 tonne/hectare to Ukrainian sandy loams (Mazur G A, Medvid G K, Grigorta T I 1984, Pochvovedenie 10:7378).

Clinoptilolite amended to a potting medium for chrysanthemums behaved like a slow-release K-fertilizer, yielding the same growth for the plants as daily irrigation with Hoagland’s solution (Hershey D R, Paul J L, Carson R M 1980, HortScience 15:8789.).

The addition of NH4 +-exchanged clinoptilolite in greenhouse experiments resulted in 59% and 53% increase in root weight of radishes in medium- and light-clay soils, respectively (Lewis M D, Moore F D, III, Goldsberry K L Pond W G, Mumpton F A 1984, in Zeo-Agriculture: Use of Natural Zeolites in Agriculture & Aquaculture, eds Pond W G, Mumpton F A (Westview, Boulder, CO), pp 105112).

A 10% addition of clinoptilolite to sand used in the construction of golf-course greens substantially reduced NO3-leaching and increased fertilizer-N uptake by creeping bent-grass, without disturbing the drainage, compaction, or “playability” of the greens (Petrovic A M1993, Program & Abstracts: Zeolite ’93: 4th International Conference on Occurrence, Properties & Utilization of Natural Zeolites, Boise, Idaho, Int. Comm. Nat. Zeolites, Brockport, NY, abstr. pp 162164) ( Huang Z T 1992, Ph.D. thesis, Cornell Univ. Ithaca, NY)


Comment: This photograph shows the root system of a plant at 10 weeks. Although not terribly clear, dotted along each root are dozens of tiny Zeolite particles. The Zeolite particles are bound to the root. The Zeolite, particularly the smaller particles, is bound quite tightly to the root and cannot be removed without damaging the root. In some cases the Zeolite particle attached is quite large (about the size of a grain of Sand)


July 30, 2008 - Posted by | Research | , , , , , ,

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