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Application of Corn steep liquor powder can improve salt tolerance of plants under salt stress environment
Release time:
2024-08-09
The application of corn extract powder can activate the antioxidant capacity of plants and promote the synthesis of antioxidant compounds; Improve photosynthetic efficiency, alleviate oxidative damage to plants, and reduce the toxicity of Na+ and Cl- ions. Many experiments have also demonstrated that corn extract powder can induce adaptive responses in plants such as chili under salt stress environment.
Salinization of land affects 20% of irrigated farmland worldwide, leading to imbalanced nutrient absorption and hindering the growth of most plants. Corn steep liquor powder is not only an excellent organic fertilizer, but also a natural bio-stimulant that can enhance plant salt tolerance and promote plant growth.
1: The protective effect of Corn steep powder's nutritional components on crops
Corn steep powder contains 43% protein and 60% organic matter, which can increase the buffering capacity of soil for harmful ions, promote plant root growth, and improve the survival rate of plant seedlings. CSL powder also contains 35% amino acids that can be directly absorbed and utilized by plants. For example, Corn steep powder contains 4.03% proline, which acts as an osmoprotectant, osmoregulator, and antioxidant in salt stress environments.
2: Induction effect of corn steep powder as a biostimulant on plants
The application of corn extract powder can activate the antioxidant capacity of plants and promote the synthesis of antioxidant compounds; Improve photosynthetic efficiency, alleviate oxidative damage to plants, and reduce the toxicity of Na+ and Cl- ions. Many experiments have also demonstrated that corn extract powder can induce adaptive responses in plants such as chili under salt stress environment.
(1)Corn steep powder can promote photosynthesis and increase conversion efficiency
Under salt stress conditions, root application of corn steep powder can prevent the complete closure of stomata in plants, reduce stomatal resistance, enhance net assimilation of CO2 by plants, thereby maintaining their photochemical activity and ensuring their photosynthetic efficiency; In addition, it can also improve the water utilization efficiency of plants and enhance their ability to convert light energy into chemical energy.
(2) CSL powder can activate plant defense mechanisms and reduce cellular oxidative damage
Salt stress can seriously disrupt the metabolic homeostasis of plants, leading to problems such as lipid peroxidation of cell membranes, which in turn can damage plant health. Plants themselves possess defense mechanisms composed of both enzymatic and non enzymatic systems, such as antioxidant compounds such as phenols and anthocyanins; The application of corn extract powder can stimulate the defense mechanisms of crops such as chili peppers, promote enzyme activity, and thus provide antioxidant defense against external stress, reducing oxidative damage to plant cells.
(3) Corn steep liquor powder can alleviate ion toxicity
Salt stress can lead to excessive uptake of Na+and Cl- ions by plants, resulting in ion toxicity; Corn steep powder contains various organic components such as amino acids and natural growth hormones such as cytokinins, which can enhance ion selectivity in plant roots; Experiments have shown that foliar application of corn extract powder can reduce the concentration of Na+and Cl- ions in leaves; The application of corn steep powder to roots has a significant effect on increasing leaf K+ concentration. This reduces the absorption and accumulation of toxic ions by plants, thereby improving their salt tolerance and promoting plant growth.
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