Detailed Explanation of Key Technical Points for Applying Paclobutrazol to Rapeseed

(Agricultural Wealth Network) First, sow early at the right time. Treating rapeseed with paclobutrazol will delay the vegetative growth period of its seedlings, so the sowing date should be advanced by 3 to 5 days. Second, strengthen fertilizer and water management. Spraying paclobutrazol can promote a dark green leaf color in seedlings. If the seedbed fertility is poor, spraying paclobutrazol will accelerate yellowing of the lower leaves of seedlings and hinder growth. When spraying paclobutrazol in the seedbed, it is necessary both to apply sufficient base fertilizer and to topdress according to seedling condition. Third, sow at a precise rate and plant at appropriate density. Strive for uniform sowing. Fourth, the best time to spray paclobutrazol is at the 3-leaf stage of rapeseed seedlings, and the spraying concentration is 150 mg per liter. When spraying, choose a fine-nozzle sprayer and spray all parts of the plant evenly.