Calcium & Boron Humates

Calcium & Boron Humates: The Ultimate Solution for Blossom-End Rot and Higher Yields

Why Calcium and Boron Are Critical for Tomatoes & Cucumbers

Tomatoes and cucumbers are highly susceptible to blossom-end rot (BER) and nutrient deficiencies. A 2023 study by Turkish Journal of Agriculture and Forestry revealed that calcium humate (12% CaO) and boron humate (10% boric acid) significantly improve fruit quality and yield.

Calcium humate prevents blossom-end rot (right) vs. untreated tomatoes (left)

Key Findings from the Study

✅ 159,682 kg/ha tomato yield (2936 mg/kg calcium humate) – 20% higher than control
✅ 172,992 kg/ha cucumber yield (2910 mg/kg boron humate)
✅ Reduced blossom-end rot by 75%
✅ Improved calcium translocation from leaves to fruits

How to Apply Calcium & Boron Humates

For tomatoes: Use 2936 mg/kg calcium humate (like BORCA® powder)
For cucumbers: Apply 2910 mg/kg boron humate
Best practices: Mix with irrigation water every 2 weeks

Learn more about soil health and nutrient management in our guide.

The Science Behind Blossom-End Rot Prevention

Calcium strengthens cell walls, while boron ensures proper nutrient transport. Without them:

Fruits develop dark, sunken lesions (blossom-end rot)
Plants suffer from flower drop and weak roots

University of California Agriculture confirms calcium’s role in preventing BER.

Product Spotlight: BORCA® Calcium Borate Powder

Prevents blossom-end rot and salinity stress
Increases fruit shelf life by 30%
Shop now for bulk discounts