The surface area of leaves has higher in the early developmental stages in the experimental ricefield. In the booting and mature stages the factors were 6.9 and 2.5, respectively. In the control fields, the corresponding figures were 5.6 and 1.4. The larger surface area of the leaves and the higher content of chlorophyll will increase the efficiency of photosynthesis, and therefore increase the number of effective ears, the number of grains per ear, and the weight of the grains. The activity of the root system is expressed by the volume of water that flows through a wounded stem per unit of time.
Strong activity means that the root system can absorb more nutrients from the soil.
The root systems of rice plants grown in the experimental field always had stronger activity than the roots of plants in the control field at all developmental stages. The NPK content, surface area of the leaves, chlorophyll content, and activity of the root system were all higher in the rice fish system. These differences are also expressed in the accumulation of dry matter. This is a fundamental condition for an increase in rice production. Effect on Tillering Tillering of the rice plant during the early stages of development is crucial stage to the production of effective ears.