Synthetic Zeolite A as Zinc and Manganese Fertilizer in Calcareous Soil

Why nonconventional materials are answers for sustainable agriculture

“…58 For them, the controlled release of micronutrients (as Zn 2+ and Mn 2+ ) has also been explored, probably due to their better market price compared to macronutrients. 59,60 Besides the very high cation-exchange capacity of zeolites, other minerals, notably clays, have significantly high values and have been also investigated. 61 Smectites, 62,63 typically montmorillonites, 64 are studied as simple mixtures with fertilizers, but other clays-as caulinites 65 -are proposed to the same application.…”

Manganese soil and foliar fertilization of olive plantlets: the effect on leaf mineral and phenolic content and root mycorrhizal colonization

“…At the same sampling times, entire plants were sampled and divided into separate portions of leaves, stems and roots. Plant fractions were taken to the laboratory and carefully rinsed with tap water, then washed out through the six pots system 16 . For the purpose of mineral analysis, the leaves were dried at 75 ∘ C until a constant mass was reached.…”

“…Although the use of Mn chelates or Mn sulphate/oxide in soil has a limited or no effect on calcareous soil, the use of synthetic zeolite Mn in soil has been shown to have a positive impact on the Mn concentration in upper plant tissues . Zeolites are hydrated microcrystalline aluminosilicates in which the negative charge of framework is compensated with hydrated mobile cations and they can be used in agriculture as slow released fertilizers …”

“…[11][12][13] Zeolites are hydrated microcrystalline aluminosilicates in which the negative charge of framework is compensated with hydrated mobile cations 14 and they can be used in agriculture as slow released fertilizers. 15,16 Although olive is a highly mycotrophic plant and the beneficial impact of mycorrhizae on nutrient uptake is well known, there are only a few studies reporting the effects of arbuscular mycorrhizal fungi (AMF) on olive nutrient uptake and the Mn-AMF relationship. 17 The assumption is that the soil application of Mn enriched Zeolite A or foliar Mn application could improve the leaf Mn concentration on calcareous soils and, subsequently, lead to a higher leaf phenolic content and influence different AMF colonization rates.…”

Second Cheese Whey Treatment Using Zeolite under Continuous Flow Mode and Its Application on Wheat Growth

“…Several studies have examined the effect of zeolite on the growth of various plant species. These experiments mostly concern the use of unsaturated zeolite, as a controlling agent, as it's water and nutrient release is slow in various plants (i.e., Zea mays, Hordeum vulgare L. seedlings, Raphanus sativus, rice, cucumber, Aloe vera, soybean cultivars, sugarcane, corn, sorghum, Leccino olive, and sunflowers) [20][21][22][23][24][25][26][27][28][29][30][31][32][33][34][35][36][37][38][39]. On the other hand, zeolite has been used as a bulking agent to produce compost derived from various wastes, such as sewage sludge [40], biogas digestate [41], and food waste [42].…”