γ-PGA can be used as a fertilizer by dilution of its microbial fermentation solutions, which contain free PGA, amino acids, sugars as well as minerals, and can be safely applied directly to crops.
γ-PGA has high water absorbability, which can increase the water content of soil at depths between 0 and 20cm by 1.5-2.8%, and at soil depths between 20 and 40 cm by 1-1.5%, thus giving higher resistance to drought.
In addition, γ-PGA biodegrades naturally to amino acids, which is non-toxic to soil and environment. Research shows that γ-PGA as a compound fertilizer is more profitable than other similar products and the market demand is also very large.