The researchers evaluated different methods to estimate how much water is used by standard crops and soybean plants. They compared the estimates from a lysimeter, an evaporimeter pan, and a computer model. The results showed that the lysimeter method gave higher estimates for both standard and crop water use compared to the other methods. The soybean plants grew best with a yield of 10.73 grams of seeds per 100 seeds. The researchers suggest further studies to improve the lysimeter method for measuring water use in plants.