6-Benzyladenine (6-BAP) is a synthetic cytokinin-like plant growth regulator，it can be applied at various stages of plant growth to enhance photosynthesis, ensuringstable and increased crop yields，The following outlines the application methods for various plant species。
For Wheat：
Applying benzyladenine at 10–30 mg/L during the grain-filling stage can enhance photosynthesis, promote dry matter accumulation and its allocation to grains, mitigate the adverse effects of waterlogging on yield formation, and stabilize or increase grain yield.
For Rice：
Spraying a 40 mg/L benzylaminopurine solution on rice leaves at the initial heading stage advances uniform heading and grain filling by 3 days compared to water-treated controls. It increases effective panicles, filled grains per panicle, improves seed-setting rate by 4.5%, raises 1000-grain weight by 0.7 g, reduces the negative impacts of autumn winds and rainy weather on flowering and pollination, and significantly boosts yield.
For Corn：
During the corn grain-filling stage, foliar spraying or root irrigation with a 10 mg/L benzylaminopurine solution, combined with appropriate nitrogen fertilization, significantly enhances post-anthesis nitrogen metabolism-related enzyme activity and nitrogen absorption efficiency in leaves. This promotes nitrogen accumulation in the plant and facilitates nitrogen translocation from vegetative organs to grains, increasing post-anthesis dry matter accumulation per plant and ultimately improving grain yield.
For Soybean：
Foliar application of 200 mg/L phenylamino purine at the initial flowering stage enhances the accumulation of photosynthetic products in leaves, leading to increased yield. Additionally, it elevates protein content in soybean seeds, modifies fatty acid composition, and improves overall grain quality.
