calcium lignosulfonate in fertilizers is mainly based on its ability to improve soil structure

1. Improvement of Soil Structure

• Role: Calcium lignosulfonate helps bind soil particles into more stable aggregates, which improves soil aeration and permeability while reducing soil erosion.
• Application Method: Mix calcium lignosulfonate with organic or inorganic fertilizers before applying it to the soil.

2. Enhancement of Soil Water Retention

• Role: By improving soil structure, calcium lignosulfonate indirectly enhances the soil's water retention capacity, which is particularly important for agriculture in arid regions.
• Application Method: Depending on soil type and crop needs, add calcium lignosulfonate to irrigation systems or directly mix it into the soil at an appropriate ratio.

3. Increase Soil Fertility

• Role: As an organic substance, calcium lignosulfonate enriches the soil with organic matter, promoting microbial activity in the soil, thus enhancing soil fertility.
• Application Method: Use as a soil conditioner by mixing it into the soil before sowing or during the growing season of crops.

4. Promotion of Plant Growth

• Role: Studies have shown that calcium lignosulfonate can stimulate root development, enhancing plants' absorption of nutrients and water, thereby promoting overall plant growth.
• Application Method: Apply fertilizer containing calcium lignosulfonate around crops directly or dissolve it in water for irrigation.

Precautions for Use

• The optimal amount of calcium lignosulfonate should be determined based on specific soil conditions and crop requirements.
• When used over a long period, monitor soil reactions to avoid imbalance due to prolonged use of a single type of amendment.
• It is recommended to combine this practice with other soil improvement measures such as crop rotation and green manure for the best results.

In conclusion, calcium lignosulfonate serves as a multifunctional additive playing a significant role in modern agriculture, especially in improving soil quality and increasing crop yields. Proper and rational use can bring significant economic and environmental benefits.