In the pursuit of high yield and premium quality in modern agriculture, one substance is quietly transforming the growth trajectory of crops - Anhydrous Calcium Nitrate. Though it may appear to be an ordinary chemical, it is in fact an essential high-quality fertilizer and plant growth regulator in modern farming.
Anhydrous Calcium Nitrate (Ca(NO₃)₂) is a highly concentrated source of calcium and nitrate nitrogen. Compared with regular calcium nitrate, it contains no crystal water, offering higher purity, greater active ingredient content, and better nutrient absorption efficiency for crops.
Product Features:
Calcium content up to 19%
Nitrate nitrogen content 16%
100% water-soluble, rapidly absorbed by plants
Free of harmful ions such as chloride and sodium
Physiologically neutral fertilizer, does not acidify soil even with long-term use
1. Why Do Crops Need Anhydrous Calcium Nitrate?
Calcium - the "Skeleton" Element of Plants
Calcium is an essential nutrient for plant growth and development. Much like the bones in the human body, it supports the overall structure of plants:
Strengthens cell walls: Calcium is a key component of the cell wall.
Enhances stress resistance: Improves plant tolerance to drought, heat, and cold.
Improves quality: Increases fruit firmness and extends shelf life.
Regulates metabolism: Participates in various physiological processes within the plant.
Nitrogen - the "Protein" of Plants
Nitrate nitrogen is the most readily absorbed form of nitrogen for plants, providing rapid nutrition:
Promotes growth: Accelerates leaf development and enhances photosynthesis.
Improves efficiency: Not easily fixed by soil, with a utilization rate above 80%.
Acts quickly: Visible effects can be seen within 3–7 days after application.
2. The Unique Advantages of Anhydrous Calcium Nitrate
Dual Benefits for Greater Efficiency
Compared with traditional fertilizers, anhydrous calcium nitrate perfectly combines calcium and nitrogen, achieving a synergistic effect:
Synergistic absorption: Nitrate nitrogen promotes the transport and uptake of calcium within plants.
Balanced nutrition: Supplies both secondary and major nutrients simultaneously, preventing nutrient imbalance.
Time- and labor-saving: Delivers dual effects in a single application, reducing labor costs.
Solving Calcium Deficiency Problems
Calcium deficiency can cause a range of physiological disorders in crops. Anhydrous calcium nitrate effectively prevents these issues, such as:
Bitter pit in apples: Sunken spots on fruit surfaces.
Blossom-end rot in tomatoes: Fruit bottoms rot and turn black.
Fruit cracking in grapes: Extensive cracking during the ripening stage.
Tipburn in Chinese cabbage: Inner leaf edges become dry and scorched.
3. Practical Application Guide
Suitable Crops
Anhydrous Calcium Nitrate is widely applicable to various economic crops, including:
Fruit trees: Apple, grape, citrus, peach, pear
Vegetables: Tomato, cucumber, chili, potato, leafy vegetables
Cash crops: Tobacco, cotton, peanut, watermelon
Application Methods
Basal application: Mix with other fertilizers before soil preparation.
Dosage: 5–10 kg per mu (≈75–150 kg/ha).
Topdressing (hole or furrow application):
Dosage: 3–5 kg per mu (≈45–75 kg/ha).
Fertigation (irrigation application):
Dosage: 2–4 kg per mu each time (≈30–60 kg/ha).
Foliar spray: Dilute 800–1000 times and apply during key growth stages.
Recommended Application Stages
Fruit trees: 3–6 weeks after flowering, during the fruit expansion stage.
Vegetables: During vigorous growth and early fruiting stages.
Field crops: During rapid growth periods.
4. Precautions for Use
Storage requirements: Keep tightly sealed in a dry and well-ventilated place.
Mixing restrictions: Do not mix directly with phosphate fertilizers.
Application timing: Avoid foliar spraying during high-temperature periods at noon.
Dosage control: Apply appropriate amounts according to soil conditions and crop requirements.
