Production and assessment of microalgal liquid fertilizer for the enhanced growth of four crop plants

Emerging technologies of algae‐based wastewater remediation for bio‐fertilizer production: a promising pathway to sustainable agriculture

“…Secondly, living algal cells could be added into soil to regulate the microbial community, improve soil fertility, and control soil moisture 14,29 . Thirdly, algae extract containing amino acids and minerals can be exploited as a liquid bio‐fertilizer that is spread on the surface of plant leaves 10 . Although slow‐release bio‐fertilizer, nitrogen‐fixing cyanobacteria, and liquid bio‐fertilizer are different in their production processes and action mechanisms, all of them can have positive effects on plant growth and soil quality (Table 2).…”

“…discovered that the liquid bio‐fertilizer provided amino acids and essential minerals to Capsicum annum , improving the root length, total dry weight, leaf area, and the number of branches and pods 11 . The positive effects of algal bio‐fertilizers on the growth of other plants or crops, such as Vigna radiata , Cucumis sativus , and Oryza sativa , were also reported 10,46 . Therefore, the algal bio‐fertilizer industry is of vital importance to agricultural development.…”

“…25 Application of algal bio-fertilizer Current studies cover both fundamental research and applied research, fully documenting the positive effects of algal biofertilizers on plant growth, crop yield, soil microorganisms, nutritional value of fruits, and seed germination. [9][10][11] Driven by the ecological and economic benefits, researchers from academia and industry have developed three major models to utilize the algal bio-fertilizers in agriculture (Fig. 1).…”

“…Current studies in this field cover algae‐based wastewater remediation, bio‐fertilizer processing, soil ecosystem protection, plants or crops growth, and food safety chain 5,10,11 . For example, Khan et al .…”

“…8,9 Current studies in this field cover algae-based wastewater remediation, bio-fertilizer processing, soil ecosystem protection, plants or crops growth, and food safety chain. 5,10,11 For example, Khan et al proposed the concept of integrating wastewater-based algae culture with the exploitation of biomass as bio-fertilizer.…”