How is choline chloride used to boost crop yields in China?

How is choline chloride used to boost crop yields in China?
Choline chloride, also known as vitamin B4, is gaining traction in Chinese agriculture as a plant growth regulator. Farmers report that foliar sprays can increase yields by 30-50% in crops like peanuts, sweet potatoes, wheat, rice, corn, and potatoes. The compound promotes photosynthesis, root development, and tuber or grain filling, while also improving stress tolerance. Unlike stronger growth regulators such as chlorpyrifos or gibberellic acid, choline chloride acts more gently, reducing the risk of overgrowth or deformity. However, overuse can loosen fruit fiber structure, lowering firmness and shelf life. In practice, it is often combined with calcium regulators to control excessive vegetative growth while boosting reproductive output. Domestic demand is rising as growers seek reliable yield enhancers, though proper dosing remains critical to avoid quality trade-offs.