吲哚乙酸促进种子萌发。在播种前,以0.52.5毫克/千克吲哚乙酸溶液浸泡种子312小时,能促进根的生长。2.4-滴促进生长,增加产量。用5毫升/千克2,4-滴溶液处理40天苗龄的棉花植株,此后每隔20天重复施用1次,直至开花,能防止落蕾落铃,可提高产量。增产灵防止落花落果。现蕾期或始花期用510毫克/千克增产灵溶液喷洒全株,或 Indoleacetic acid promotes seed germination. Prior to sowing, the seed was soaked with 0.52.5 mg / kg indole acetic acid for 312 hours to promote root growth. 2.4-drop to promote growth, increase production. Cotton plants of seedling age of 40 days were treated with a 5-ml / kg 2,4-drop solution and then repeatedly applied once every 20 days until flowering, to prevent fall and fall of flowers and increase yield. Zeng Ling Ling to prevent falling. Budding or flowering stage with 510 mg / kg spleen Ling solution spraying the whole plant, or