Discount wholesale Cas 7446-20-0 Zinc Sulfate Heptahydrate 22% - Agricultural Grade Zinc Sulfate – Jinchangsheng

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Discount wholesale Cas 7446-20-0 Zinc Sulfate Heptahydrate 22% - Agricultural Grade Zinc Sulfate – Jinchangsheng Detail:

Technical indicators

Item	Index
	ZnSO₄·H₂O			ZnSO₄·7H₂O
	A	B	C	A	B	C
Zn ≥	35.3	33.8	32.3	22.0	21.0	20.0
H₂SO₄ ≤	0.1	0.2	0.3	0.1	0..2	0.3
Pb ≤	0.002	0.01	0.015	0.002	0.005	0.01
Cd ≤	0.002	0.003	0.005	0.002	0.002	0.003
As ≤	0.002	0.005	0.01	0.002	0.005	0.007

Product Use Description

Agricultural grade zinc sulfate monohydrate can be used as water-soluble fertilizer and trace element fertilizer to improve soil nutrient distribution and promote crop growth.

It can be used to prevent diseases in fruit tree nurseries. It is also a commonly used fertilizer to supplement crop zinc trace element fertilizers. It can be used as base fertilizer, foliar fertilizer, etc.

1. Use as base fertilizer:

Zinc sulfate can be used as base fertilizer for dryland crops such as corn, wheat, cotton, rape, sweet potato, soybean, peanut, etc. Generally, 1-2 kilograms of zinc sulfate is used per acre, and 10-15 thousand dry fine soil is used. After mixing thoroughly, sprinkle it evenly on the ground, then plow it into the soil, or apply it in strips or holes. Vegetables use 2 to 4 kilograms of zinc sulfate per mu.

2. Foliar spray application:

1. Fruit trees: spray 3%~5% zinc sulfate solution one month before germination in early spring, and the spray concentration should be reduced to 1%~2% after germination, or use 2%~3% zinc sulfate solution for annual The branches 1~2 times.

2. Vegetables: Foliar sprays use zinc sulfate solution with a concentration of 0.05% to 0.1%, and the effect of spraying in the early stage of vegetable growth is better, each time interval of 7 days, continuous spraying 2~3 times, each time per mu Spray 50~75 kg of solution.

3. Seed soaking use:

Mix zinc sulfate into a solution with a concentration of 0.02% to 0.05%, and pour the seeds into the solution. Generally, it is better to submerge the seeds in the solution. Rice seeds are soaked with 0.1% zinc sulfate solution. The rice seeds are first soaked in clear water for 1 hour, and then put into the zinc sulfate solution. The early and middle rice seeds are soaked for 48 hours, and the late rice seeds are soaked for 24 hours. Corn seeds are soaked in 0.02%~0.05% zinc sulfate solution for 6~8 hours, and then they can be sown after being removed. Wheat seeds are soaked in 0.05% zinc sulfate solution for 12 hours, and then they can be sown after being removed.

Fourth, the use of seed dressing:

Use 2 to 3 grams of zinc sulfate per kilogram of seeds, dissolve it with a small amount of water, spray on the seeds, and stir while spraying. The water should be used to mix the seeds evenly. The seeds can be sown after they are dried in the shade.

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33% Zinc Sulfate