At present, greenhouse vegetable cultivation has been repeated for many years. Vegetable growers have become more and more troublesome about the root diseases of vegetables. Tests have shown that using copper sulphate for the prevention and treatment of vegetable root diseases has a good effect. The specific application method is described as follows:
First, use 2 kg of copper sulfate per mu, add 11 kg of ammonium bicarbonate, grind it and mix it, put it into a complete plastic bag, and seal it for 24 hours (it is a copper ammonium preparation). Before planting, spread evenly into the planting ditch or planting hole.
Second, after the planting of easing seedlings, in combination with pouring water, the above-mentioned agents are dissolved and rushed into the water.
Third, use 500 times copper sulfate to water the roots of the crop, 250 grams of liquid per plant.
4. 5 kg of copper sulphate per mu, dissolved into the vegetable field with water. Application of copper sulfate on eggplant Verticillium wilt, cucumber wilt, pepper blight, tomato bacterial wilt and so have a better control effect, efficacy can last for more than 1 year.
First, use 2 kg of copper sulfate per mu, add 11 kg of ammonium bicarbonate, grind it and mix it, put it into a complete plastic bag, and seal it for 24 hours (it is a copper ammonium preparation). Before planting, spread evenly into the planting ditch or planting hole.
Second, after the planting of easing seedlings, in combination with pouring water, the above-mentioned agents are dissolved and rushed into the water.
Third, use 500 times copper sulfate to water the roots of the crop, 250 grams of liquid per plant.
4. 5 kg of copper sulphate per mu, dissolved into the vegetable field with water. Application of copper sulfate on eggplant Verticillium wilt, cucumber wilt, pepper blight, tomato bacterial wilt and so have a better control effect, efficacy can last for more than 1 year.
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