Correct application methods and technical key points for boron nutrition in rapeseed

(Agricultural Wealth Network) In areas where rapeseed is deficient in boron, boron fertilizer should be applied reasonably according to the specific soil boron deficiency conditions. Trials have shown that spraying a 0.2% borax solution once each at the seedling stage and the bolting stage gives a better yield increase effect than seed soaking alone or using it as a base fertilizer, increasing yield by 11.4% compared with no boron application. Spraying separately at the seedling stage + bolting stage + early flowering stage gives a better effect than spraying separately at the seedling stage, bolting stage, or early flowering stage alone, increasing yield by 16.2% compared with the control sprayed with clear water. A 0.2% borax solution gives the best effect, increasing yield by 17.8% compared with no spraying.