Most of the water absorbed by crops is evaporated into the air through evapotranspiration. The biggest factor affecting crop evapotranspiration is sunlight intensity. Since temperature also has a large positive correlation with sunshine, although only the light accumulation value is used, the reliability of the estimation of evapotranspiration is quite high. We applied this low-cost technology to develop a light cumulative value automatic irrigation machine to obtain relatively accurate automatic irrigation effects.
The light accumulation automatic irrigation machine has been proven through many field applications in automatic irrigation to reduce farmers' work of repeatedly setting timers due to unpredictable weather. It can automatically adjust to weather changes and provide water at the right time. Reduce the frequency of irrigation and the amount of water and fertilizer used on rainy days. This machine can provide farmers with their automatic irrigation solutions in low cost.
