[1] English common name: 2-pyridinepropanol

[2]Product Name: Soybean Hormone, Increasing alcohol, 3-(α-pyridyl)-propanol, zengdaobao

[3] Chemical name: 3 – (2 ‘- pyridyl) – 1-propanol

[4] CAS No.: 2859-68-9

[5] Molecular formula: C8H11NO

[6] Relative molecular weight: 137.18

[7] Physical and chemical properties

Pure products are colorless and transparent liquids, and commercial products are mostly light yellow to brown oily liquids with special odor. They are difficult to dissolve in water, easily soluble in ethanol, ether, propyl ether, chloroform, benzene, toluene and other organic solvents, and insoluble in petroleum ether.

[8] Toxicity: moderate toxicity

[9] Main dosage form: 80% and 90% pyridinol emulsifiable concentrate

[10] Functional features

Pyridinol is a pyridine compound with growth regulation function, which can inhibit the nutrient growth of crops, promote the growth of roots, make the stem strong, the leaves thick, the leaves green, enhance photosynthesis, and improve the seed setting rate and dry grain weight; It can increase the number of root nodules of leguminous plants, improve the nitrogen fixation capacity, reduce the pod setting position of soybean, increase the number of pods and full fruits, and promote early maturity and high yield. In addition, it has certain disease prevention and lodging resistance effects on crops.

[11] Application Technology

Soybean  Soybean seeds were soaked with 100-300mg / L pyridinol solution for 2h; Spray 4ml of 80% pyridinol emulsifiable oil on the soybean seeds used for each mu for seed dressing, mix well and dry them before sowing; For foliar spraying, spray 200mg / L pyridinol solution once at the beginning of flowering and at the full flowering stage, or spray 500mg / L solution once at the full flowering stage, which can promote plant dwarfing, pod formation and grain weight increase.

Peanut  Before sowing, peanuts should be soaked with 100mg / L pyridinol solution for 4 hours or 200mg / L solution for 2 hours. Every 50kg solution should be soaked with 40 ~ 50kg of peanut seeds. After soaking, seeds can be sown after drying. It can also spray 500mg / L pyridinol solution at the beginning or full flowering stage of peanut to control the plant height, promote the number of needles and fruits, and improve the yield.

Chinese cabbage  Spraying 80-100mg / L chemical solution at seedling stage and growth stage of Chinese cabbage can increase leaf area and promote the accumulation of photosynthetic products. It is mainly used to regulate the growth of Chinese cabbage and achieve the effect of increasing production.

Sunflower  Sunflower seeds were soaked with 300 mg / L pyridine alcohol solution for 2 hours before sowing, and sown after drying, which could promote seedling growth and increase yield.

 Sesame  Before sowing, sesame seeds were soaked with 250mg / L pyridine alcohol solution for 4h, and then dried to seed. The whole plant can also be sprayed with 500mg / L pyridyl alcohol solution at the early flowering stage, which can effectively promote yield increase.

[13] Precautions:

①This product is highly toxic and should be kept properly to prevent people and animals from eating it by mistake. During preparation and operation, avoid splashing into eyes or skin, and prevent the liquid from flowing into fish ponds, rivers and other water bodies during application.

②The fertilizer and water management should be strengthened in the application field to prevent the normal growth of plants from being affected by water shortage, drought and lack of fertilizer.