Micronutrient Fertilizer Boric Acid
Molecular formula:K2CO3
Molecular weight:138.19
Boric acid (H₃BO₃) is a naturally occurring, weakly acidic compound composed of boron, oxygen, and hydrogen. It appears as a white, crystalline powder that is odorless and soluble in water. With versatile applications across industries, boric acid is widely used in agriculture as an essential micronutrient fertilizer, providing boron (B), a critical element for plant growth and development.
In agriculture, boric acid plays a vital role in improving crop yield and quality by supporting key physiological processes such as cell wall formation, pollen germination, and sugar transport. Boron deficiency, common in sandy or highly leached soils, can lead to poor fruit set, stunted growth, and crop failures in high-demand plants like fruits, vegetables, and oilseeds. Farmers apply boric acid through soil amendment, foliar spray, or seed treatment to ensure optimal boron availability.
Functions & Benefits in Agriculture
Essential Micronutrient: Provides boron (B), crucial for:
Pollination & Fruit Set – Improves flower fertility and reduces "blossom drop" (e.g., in tomatoes, apples).
Cell Wall Formation – Strengthens plant structure.
Sugar Transport – Enhances nutrient movement within plants.
Corrects Boron Deficiency: Symptoms include stunted growth, hollow stems (e.g., cauliflower), and cracked fruit (e.g., citrus).
Application Methods for Reference:
Soil Application:
Dosage: 1–3 kg/hectare (varies by crop and soil test).
Method: Broadcast or mix with NPK fertilizers.
Foliar Spray (Quick Fix):
Dilution: 0.1–0.3% (1–3 g per liter of water).
Timing: Early flowering or fruit-setting stage.
Seed Treatment:
Dosage: 100–200 mg/kg seeds (improves germination).
Storage & Handling
Storage Conditions:
Dry & Cool Place: Avoid humidity (absorbs moisture).
Sealed Container: Prevent clumping or contamination.
Away from Food/Feed: Toxic if ingested.
Shelf Life: Indefinite if stored properly (no degradation).
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