Recommended Plant Growth Regulators for Major Energy and Sugar Crop Sugarcane at Different Growth Stages

Recommended plant growth regulators for sugarcane cultivation primarily include Gibberellic Acid (GA3), Sodium Nitrophenolates (Atonik), and Brassinolide (BRs). Specific usage should be adjusted based on the growth stage and needs.

Recommended Plant Growth Regulator Types
‌1. Gibberellic Acid (GA3)
GA3 promotes stem cell division and elongation, significantly increasing stem diameter and internode length. It is suitable for promoting plant height growth during the elongation phase.

‌2. Sodium Nitrophenolates (Atonik)
Atonik enhances photosynthesis and stress resistance. It is commonly used during the seedling and tillering stages to promote rapid growth and improve lodging resistance.

‌3. Brassinolide (BRs)
Brassinolide improves nutrient absorption efficiency and enhances root development. It is suitable for mid- and late-stage management to enhance lodging resistance.

Plant Growth Regulator Use Precautions
Concentration: Gibberellic Acid is commonly used at a concentration of 0.01%-0.05%. Atonik recommends spraying at a concentration of 0.01%-0.03%.
Spraying Time: Spray every 15 days during the growth phase. Foliar fertilizer is most effective.
Environmental Conditions: Avoid periods of high temperature and strong sunlight. Spray in the morning or evening for optimal absorption.