The Fallacy of Organic Fertilizers and Synergistic Interactions Between Zn2+ and Inorganic Phosphate Groups

Abstract

Zn2+ and phosphate groups are crucial plant nutrients for several plant species. However, uptake and availability of these ions in most plants face negative synergy from themselves and other factors. While use of organic fertilizers has numerous advantages over inorganic ones, it has been criticized to support antagonism of Zn2+ uptake in plants. This mini review sought to address some of the factors leading to antagonism of Zn2+ uptake in plants in the presence of inorganic phosphate groups (Pi) and other organic moieties. Herein, we address these factors from a molecular and psychological perspective. We also describe some of the structural and bonding factors leading to formation of insoluble and immobile Zn2+ complexes in plants in organic moieties. The authors conclude that organic fertilizers meant for application needing high Zn2+ such as in seedbeds and during drought seasons should include chelating agents or rice straws that ameliorate soil pH.