| While irrigated with pulse slowly, the water diffuses at the beginning according to the capillarity and forms spheroidicity; the shapes vary from different soils. A dynamic balanced humid zone is formed according to the water evaporation, roots absorption and the infiltration without causing any salinization. |
With fast irrigation, the water infiltrates into the soil quickly according to the gravity and then diffuses around. Because of evaporation, this causes not only a lot waste of the fertilizer but also serious salinification and hardening of the soil. |