6-Benzylaminopurine (6BAP) is a cytokinin-type plant growth regulator that promotes cell division, breaks apical dominance, increases fruit set, and enhances stress resistance. When mixed with foliar fertilizers, it can achieve a synergistic effect of nutrient supply and growth regulation, but the principles and precautions for mixing must be observed.
The mechanism of synergistic effect lies in the synergistic effect of nutrition and regulation: 6-Benzylaminopurine promotes organ growth by activating cell division-related genes, while foliar fertilizers provide essential nutrients (such as phosphorus, potassium, boron, calcium, etc.) to compensate for insufficient soil supply. The combination of the two can significantly enhance the effect. For example, in mango fruit preservation, mixing BAP with potassium dihydrogen phosphate or amino acid foliar fertilizer can reduce fruit drop and promote fruit enlargement.
Common synergistic combinations include:
Potassium dihydrogen phosphate: Mixing with BAP (e.g., 50-70 mg/L BAP + 0.2% potassium dihydrogen phosphate) can enhance flower bud differentiation and fruit development, increase sugar accumulation, and improve stress resistance.
Brassinolide: When used in combination with BAP (e.g., at a 0.01% concentration), it synergistically enhances photosynthetic efficiency and stress resistance, especially under adverse conditions (such as drought and low temperatures).
Amino acid or humic acid foliar fertilizers: Such as water-soluble fertilizers containing amino acids, they promote nutrient absorption, prevent excessive vegetative growth caused by using 6BAP alone, and enhance the robustness of branches and leaves.
