Chitosan foliar spray dosage promotes plant growth

Case 1: Chinese cabbage: provide 0.1% chitosan solution, add 24 times of water to make the chitosan concentrated

Dilute to 40ppm (0.004%).

For example, for every 1000ml of the solution of this concentration, add 24000ml of clean water when used, and a total of 25000ml is used for spraying the leaves. Spray until the leaves are completely wet, subject to no dripping. For cabbage, when the cotyledons are fully expanded, spray it for the first time and then every 4 days for a total of 5 sprays.

For vegetables that promote root growth: provide a 0.1% chitosan solution, add 49 times of water when using it, and dilute the chitosan concentration to 20ppm (0.002%). The spraying method can refer to cabbage or cucumber.

For example, for every 1000ml of the solution of this concentration, add 49000ml of water when used, and a total of 50000ml is used to spray the leaves to promote root growth.

Case 2 Cucumber: Provide a 0.1% chitosan solution, add 9 times clear water when using it, and dilute the concentration to 100ppm (0.01%).

For example, for every 1000ml of the solution of this concentration, add 9000ml of clean water when used, and a total of 10000ml is used for spraying the leaves. Spray until the leaves are completely wet, subject to no dripping. For cucumber, spray it for the first time when the three leaves and one heart are growing, and then spray once every 7 days, for a total of 4 sprays.