Moisture Retaining Humic Acid Granules 65% for Coastal Sandy Vegetable Soils

Coastal sand is a difficult place to grow vegetables. It drains in minutes, holds almost no nutrients, and the surface temperature can reach 45 C by mid-morning, which is why growers on the central coast of Vietnam and the Ilocos strip irrigate every second day and still see wilting. The problem is not water supply, it is residence time. This granule is built to extend residence time. The humate matrix absorbs three to four times its own weight in water and releases it slowly