Commonly used plant growth regulators for cotton include Ethephon, Thidiazuron (TDZ), Gibberellic Acid (GA3), Sodium 1-Naphthyl Acetic Acid, Mepiquat chloride, and Uniconazole. These regulators play different roles in different stages of cotton growth.

In sugarcane fields planted for many years, the internodes of sugarcane are prone to shortening, quality decline, and yield reduction. This phenomenon is sometimes difficult to reverse even with the application of more chemical nitrogen fertilizers. The use of plant growth regulators can solve the above problems, not only significantly increase yield, but also greatly improve quality.

1. Improve nitrogen fixation ability
DA-6 (Diethyl aminoethyl hexanoate):
Soak the seeds with DA-6 at a concentration of 8-15 mg/L for 8 hours, and spray once at the beginning of flowering and pod-setting stages of the seedling stage to achieve the effects of improving germination rate, increasing the number of flowers, improving the nitrogen fixation ability of rhizobia, plump pods, increased dry matter, early maturity, and increased yield.

S-abscisic acid is mixed with fertilizer to increase the number of cotton seedling roots, enhance the stress resistance of cotton seedlings, and strengthen the seedlings.