Improving Yield and Profitability of Processing Tomatoes in Northwest China with Potassium

Tomatoes require a relatively large amount of potassium (K) for adequate growth. Recently, scientists have detected declining K concentrations for soils in the Xinjiang region, and this is thought to be related to the amount of K removed from the field during the continual harvest of processing tomatoes as well as other crops. Falling soil K fertility is leading to a reduction in tomato yield and quality.