How to Fertilize Rapeseed for High Yield? A Detailed Guide to Practical Fertilization Methods
1. Apply seedling fertilizer early. In late November or early December, mainly use organic fertilizer, applying 1500-2000 kg of organic fertilizer per mu. For some fields with poor growth, an appropriate amount of chemical fertilizer should also be applied. 2. Apply stem-elongation fertilizer at the right time. Stem-elongation fertilizer should preferably be applied when the main stem bolts to 10 cm. For fields with good early seedling vigor, it may be slightly...
1. Apply seedling fertilizer early. In late November or early December, mainly use organic fertilizer, applying 1500-2000 kg of organic fertilizer per mu. For some fields with poor growth, an appropriate amount of chemical fertilizer should also be applied.
2. Apply stem-elongation fertilizer at the right time. Stem-elongation fertilizer should preferably be applied when the main stem bolts to 10 cm. For fields with good early seedling vigor, it may be slightly delayed. The application rate is generally 20% of the total fertilization amount, but for fertile land it should be less than 20%, and for poor fields it may be more than 20%. The fertilizer should be mainly organic fertilizer, combined with compound fertilizer. Applying nitrogen fertilizer alone or applying it late or in excess can easily lead to disease occurrence, causing excessive vegetative growth and lodging, and resulting in reduced yield. At this time the rapeseed plants are relatively small. Applying fertilizer beside the rapeseed roots is convenient for operation, and the chemical fertilizer will not be scattered onto the seedlings. Covering the chemical fertilizer with the dug-out soil can achieve deep application. Apply 1500 kg of organic fertilizer per mu, 20-25 kg of rapeseed special-purpose fertilizer, or 10 kg of urea.