Naphthylacetic acid can enter into the body of the crop through the leaves, the tender skin of the branches and the seeds, and transport to the effective parts with the nutrient flow. When the concentration is relatively low, it has the functions of promoting cell division, enlarging and inducing the formation of adventitic roots, increasing fruit setting rate, avoiding fruit drop, improving the ratio of male to female flowers, etc. When the concentration is higher, it can cause the production of endogenous ethylene, which has the effect of accelerating ripening and increasing yield.
1.Tomatoes.
In the flowering period of the crop, the use of 40% soluble powder 20000 to 40000 times the liquid, or 5% water 3000 to 5000 times the liquid, or 1% water 500 to 1000 times the liquid spray, can promote the plant to set fruit, avoid the phenomenon of falling flowers, increase the fruit set rate, improve crop yield.
2.Watermelon.
In the flowering period of the plant, the use of 40% soluble powder 20000 to 40000 times the liquid, or 5% water 3000-5000 times the liquid, or 1% water 500-1000 times the liquid spray, can promote the crop to set fruit and avoid falling flowers.
3.Melon.
In the flowering period of the crop, the use of 40% soluble powder 20000 to 40000 times the liquid, or 5% water agent 3000-5000 times the liquid, or 1% water agent 500-1000 times the liquid spray, can play a role in promoting the crop fruit, avoid falling fruit, improve the yield effect.
The action objects of Naphthylacetic acid are mainly the following:
1. Soak wheat seed with 20mg/kg liquid for 10-12h, dry seed, spray it once with 25mg/kg before joining, and spray the leaf and ear with 30mg/kg liquid after flowering, which can prevent lodging and increase the setting rate.
2. The rice seedlings were soaked with 10mg/kg liquid for 6h, and the stalks were strong and fast after transplantation.
3. Spray the plant with 10-20mg/kg liquid medicine 2-3 times during the blooming period of cotton, at an interval of 10 days, to prevent the fall of the renee boll.
4. The sweet potato was immersed in the lower part of the seedling (3cm) with 10mg/kg liquid for 6h and then planted to improve the survival rate and yield.
Post time: Mar-25-2025