Long-term fertilization and continuous cropping easily cause soil acidification, leading to soil compaction, poor root development, frequent physiological diseases and reduced crop yield and quality. Traditional acid-adjusting methods have obvious limitations. Rongda calcium-magnesium granules deliver mild acid regulation, soil loosening and dual calcium-magnesium supplementation, effectively solving common planting problems caused by acidified soil.

1. Main Hazards of Soil Acidification
2. Defects of Traditional Soil Improvement Methods
3. Core Functions of Rongda Calcium-Magnesium Granules
4. Standard Application Dosage for Different Crops
5. Product Advantages of Rongda Calcium-Magnesium Granules
Acidified soil severely restricts crop growth in multiple ways. It destroys soil aggregate structure and causes compaction, poor air permeability and shallow root growth. Soil acidity fixes calcium, magnesium and other medium elements, triggering leaf yellowing, premature aging, fruit cracking and blossom-end rot. Moreover, acidic conditions activate harmful substances and induce soil-borne diseases, resulting in weak seedlings, unstable yield and poor fruit quality.
Quicklime adjusts soil acidity fast yet easily causes alkalization, root burn and microbial damage with short-term effect. Blind application of compound fertilizers further aggravates acidification. Single acid regulation or simple topdressing fails to repair soil fundamentally. Rongda emphasizes that sustainable soil improvement must combine acid neutralization, soil conditioning and nutrient supplementation.
Rongda calcium-magnesium granules are professional medium-element fertilizer for acidified farmland, integrating multiple practical functions to solve typical planting pain points.
Mild and long-term acid adjustment: Weakly alkaline ingredients slowly neutralize excessive soil acid, stabilize soil pH and avoid repeated acidification without damaging soil and root systems.
Supplement calcium and magnesium to reduce physiological diseases: It provides active calcium and magnesium nutrients, improves crop photosynthesis, relieves leaf yellowing and premature aging, and effectively reduces fruit cracking, blossom-end rot and malformed fruits.
Loosen compacted soil and improve fertilizer efficiency: Rebuilds soil aggregate structure, enhances soil permeability, activates solidified nutrients and greatly improves the utilization rate of NPK fertilizers.
Protect roots and enhance stress resistance: Passivates harmful heavy metals and active aluminum in acidified soil, optimizes rhizosphere environment, promotes robust root growth and improves crop resistance against diseases and continuous cropping obstacles.
Field crops: Apply 20–30kg per mu as base fertilizer before sowing, mixed evenly into soil to strengthen seedlings and prevent premature aging.
Fruits and vegetables: Apply 25–35kg per mu during land preparation. Proper topdressing at fruit setting stage reduces physiological diseases and improves fruit quality.
Fruit trees: Furrow apply 0.8–1.5kg per mature tree in spring and autumn. It improves orchard soil, strengthens tree vigor and increases fruit sweetness and storability.
Rongda calcium-magnesium granules feature uniform particles, good fluidity and stable nutrient release, suitable for manual and mechanical fertilization. With scientific calcium-magnesium ratio, high-purity raw materials and zero harmful residues, the product can be used continuously to repair acidified and compacted soil. It is a cost-effective and reliable choice for modern standardized planting.

Soil acidification is the key factor limiting farmland productivity. Rongda calcium-magnesium granules realize integrated effects of acid adjustment, soil loosening, nutrient supplementation and root maintenance. Scientific application can effectively improve acidified soil conditions, eliminate common planting obstacles and achieve stable crop yield and quality improvement.