Applicable crops
Prohexadione calcium can be widely used in various crops due to its good safety, low toxicity and low residue. It can be applied to grains such as wheat, corn and rice, oil crops such as cotton, peanuts, soybeans, sunflowers, vegetables such as garlic, potatoes, onions, ginger, green beans, tomatoes, fruits such as citrus, grapes, cherries, pears, betel nuts, apples, peaches, strawberries, mangoes, and Chinese herbal medicines such as skullcap, rehmannia, notoginseng and yam.
I. The Effects of Prohexadione calcium
1. Preventing Stalk Tipping
Prohexadione calcium can shorten the elongation of stems, control the growth at the plant nodes, make the stems thick and the plants shorter, and prevent tipping. For cereal crops such as rice, barley, wheat, Japanese carpet grass, and rye, low doses of Prohexadione calcium can significantly reduce tipping and promote dwarfing.
2. Promoting Growth and Yield Increase
Prohexadione calcium can promote root growth of plants, enhance root vitality, increase leaf greenness, promote lateral bud growth and root development, and improve the plant’s stress resistance and yield. In crops such as cotton, sugar beet, cucumber, chrysanthemum, cabbage, cyclamen, soybeans, citrus fruits, and apples, the use of Prohexadione calcium can significantly inhibit growth activity.
3. Enhancing Disease Resistance
Prohexadione calcium can enhance the plant’s disease resistance and reduce the damage caused by diseases to the crops. It has certain effects in the prevention and control of diseases such as rice blight and wheat Fusarium wilt.
II. Usage of Prohexadione calcium
1. Wheat
During the jointing stage of wheat, 50-75 grams of 5% Prohexadione calcium effervescent granules per acre should be dissolved in 30 kilograms of water and sprayed evenly. This can effectively promote the elongation of the first to third nodes of the base of the wheat plant, control the plant height, reducing the height of the wheat plant by approximately 10-21%, enhancing the plant’s resistance to lodging and cold, and increasing the grain weight per thousand grains.
2. Rice
At the end of tillering or 7-10 days before the jointing stage, 20-30 grams of 5% Prohexadione calcium effervescent granules per acre should be dissolved in 30 kilograms of water and sprayed evenly. This can effectively prevent excessive growth of the plants, reduce the plant height, make the plant crown neat, improve lodging resistance, and ensure a good ripening condition. The yield, grain setting rate, and grain weight per thousand grains are all higher.
Post time: Feb-27-2026