Prohexadione calcium is used to control excessive vegetative growth and prevent lodging in soybeans. The key is to apply it during the early flowering stage. This effectively promotes flowering and pod setting, prevents lodging, and increases 100-seed weight and protein content.
I. Core functions of Prohexadione calcium: Controlling excessive growth, preventing lodging, and increasing yield
Controlling excessive growth and preventing lodging: Inhibits excessive stem and vine growth, resulting in a more compact plant structure and reducing the risk of lodging.
Promoting flowering and pod setting: Increases pod setting rate, reduces flower and pod drop, and increases the number of pods per plant by 8-12.
Increasing yield and improving quality: Promotes grain filling, increasing 100-seed weight and protein content.
II. Optimal application time for Prohexadione calcium
Early flowering stage (10%-20% flowering rate): First application, use 8-15 ml of 15% Prohexadione calcium per mu, diluted in 30 kg of water.
Around the peak flowering stage: A supplementary application can be made depending on plant growth, but avoid high-temperature periods.
