SCRAPING THE BARK. is also beneficial as you can keep the durian trees clean

TC Wong shared that farmers must actively supply durian trees with calcium and boron in rainy days during the flowering and fruiting period.

“Calcium and boron is the key to enhancing the fruiting rate of durians,” he emphasized. Usually, he top dresses his trees every 10-14 days during the rainy season with focus on trace elements such as calcium and boron as well as a large amount of potassium. It can be applied in granular or foliar form to further allow the durian trees to fully absorb them.

Calcium is known to be difficult to be absorbed by durian trees. Usually, only the tip of the roots has the ability to absorb calcium while other parts of the root can hardly do so. In the case of calcium deficiency, the durian trees will induce new roots to absorb more calcium