Swoboda, Philipp; et al. (2021): Remineralizing soils? The agricultural usage of silicate rock powders: A review
Swoboda, Philipp; Döring, Thomas F.; Hamer, Martin (2021): Remineralizing soils? The agricultural usage of silicate rock powders: A review. In Science of the Total Environment, p. 150976. DOI: 10.1016/j.scitotenv.2021.150976.
„Soil nutrient depletion threatens global food security and has been seriously underestimated for potassium (K) and several micronutrients. This is particularly the case for highly weathered soils in tropical countries, where classical soluble fertilizers are often not affordable or not accessible. One way to replenish macro- and micronutrients are ground silicate rock powders (SRPs). Rock forming silicate minerals contain most nutrients essential for higher plants, yet slow and inconsistent weathering rates have restricted their use in the past. Recent findings, however, challenge past agronomic objections which insufficiently addressed the factorial complexity of the weathering process. This review therefore first presents a framework with the most relevant factors for the weathering of SRPs through which several outcomes of prior studies can be explained.“