Effects of mineral-organic fertilizer on the biomass of green Chinese cabbage and potential carbon sequestration ability in karst areas of Southwest China

Bio-Organic Mineral Fertilizer for Sustainable Agriculture: Current Trends and Future Perspectives

“…The unique combination of BOMFs with the supplementation of natural organic matter, raw natural ores instead of synthetic fertilizers, and microbial assemblages capable of weathering, metabolizing and nourishing, could create a stable agricultural microenvironment. Sun et al (2019) reported an increase in the soil water holding capacity and agronomic characteristics along with an increase in the biomass of Chinese cabbage when fertilized with BOMFs (in this case, potassic rock and organic waste) [5]. Additionally, the concentration of inorganic carbon (largely in the form of HCO 3 − ) in surface run-off water treated by BOMFs was higher than in the other treatments, establishing carbon sequestration's potential.…”

“…In some areas, Chinese farmers have used potassium-containing mineral powder, phosphate rock powder, agricultural by-products, and organic wastes to make compost [5,37,38]. This method of fertilizing fields by supplementing potassium and phosphorus is simple but varies greatly in its effect on crops.…”

“…The results indicate that fermentation with a microbial agent greatly increase the soluble content of nutrients (K and P), suggesting that microbial fermentation can efficiently transform low-grade mineral rocks. Furthermore, potassium-containing rocks and auxiliary materials can be converted into multifunctional compound organic mineral fertilizers, which can not only supplement the nutrients needed for crop growth and improve its quality, but also repair inferior soil that has been severely degraded due to the excessive application of chemical fertilizers [5,13,28].…”

“…However, the beneficial effects of the use of appropriate minerals in the soil have long been neglected. In addition, our research has found that forms of mineral weathering, such as silicate weathering, are often accompanied by the formation of secondary carbonate minerals in the process of biological weathering, which undoubtedly increases the potential of cultivated soil carbon sinks [3][4][5][6]. Further studies have shown that secondary minerals formed with mineral weathering have a good remediation effect on heavy metal pollution [7,8].…”

Oxalate Carbonate Pathway—Conversion and Fixation of Soil Carbon—A Potential Scenario for Sustainability

“…It is also well established that the microcosms created by ectomycorrhiza of many higher plants support diverse oxalotrophic bacteria and provide a stable oxalate pool along with a more suitable environment for the oxalate mineralization (Guggiari et al, 2011;Sun et al, 2019a). Besides, carbon capture, storage and stability in the form of inorganic compounds is typically dependent on microbial assemblies, plant diversity and geological characteristics in the soil and can be enhanced/influenced by human interventions such as the introduction of organic mineral fertilizers (Lian et al, 2008;Liu et al, 2012;Sun et al, 2019b) (Figure 2). The addition of nitrogen to the soil in the form of bio-organic fertilizer also increases CO 2 assimilation in the form of OC by the growth of plant biomass as observed in several studies that can be adapted in the agricultural sector (Yang et al, 2020).…”