China is helping Texas, US, to improve cotton production. Reason: Many of the challenges Texas faces are similar to those encountered in cotton-producing areas of China. One of the critical issues facing Texas is water-use efficiency of major agronomic crops and how to adopt better irrigation management strategies. To accomplish this, there has to be a better understanding of soil-crop water relations and the physiological processes and crop traits that regulate crop water use.

The Chinese are interested in studying the response of cotton plants to limited water use and drought stress. They have been investigating water use and root development in cotton crops. The data will be important toward developing models to determine crop water use over the entire growing season of cotton crops.

There is a lot of clay soil in areas of Texas, which is also characteristic of soils in many of China’s cotton-producing areas. So it’s important to understand soil differences and how the water gets to the plant roots. That way it’s possible to determine if there are better ways to plant crops and to direct the flow to maximize the amount of water getting to the roots.

Adding the soil dimension to the crop-water-soil dynamic will allow researchers to have a more complete picture of how cotton yield might be improved and how the amount of irrigation needed can be reduced.