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Root spray zinc sulfate. The whole tree is sprayed with 1-5% zinc sulfate before germination, and sprayed with 0.1-0.4% zinc sulfate after spreading leaves. The addition of 0.3% urea is excellent.
Spray zinc ash. The ratio of raw materials is zinc sulfate: quicklime: water = 1:2:240. The configuration method is Bordeaux mixture.
Spray zinc liquid. The configuration method is zinc sulfate: copper sulfate: quicklime: water = 0.5:0.5:2:240.
Orchard reuses zinc
Zinc is an indispensable trace element that keeps fruit trees growing. With the increase of tree age production, the demand for zinc in fruit trees has also increased, especially in sandy beaches, saline-alkali lands and extensively managed orchards. Zinc-deficit fruit trees often show shortening of the tips of the shoots, the leaves are narrow and clustered, the flowers are small and small, they are not easy to set fruit, the fruit is deformed, the quality is poor, the growth of the tree is debilitated or the whole plant dies. For the symptoms of zinc deficiency in fruit trees, the following measures should be taken: Applying zinc fertilizer to the soil. Combined with the application of zinc fertilizer base fertilizer, the general 7-8 years old fruit trees per plant 100-200 grams, 10 years old and above 250-300 grams.