Zinc is an indispensable trace element for crop growth. Although it has very little content in crops, it has a great effect. First, zinc can enhance the photosynthesis of crops; zinc can promote the growth of crop stems and buds; zinc promotes The role of nitrogen metabolism can improve the chlorosis of plants after zinc application; zinc has the effect of enhancing stress resistance and enhancing disease resistance. According to the test, zinc fertilizer is applied to crops such as wheat, corn, soybean and cotton to increase production. The effect is obvious, you should master the following methods of use.
1. Use as a base fertilizer. The use of zinc sulphate 1 ~ 2.5 kg, zinc fertilizer and organic fertilizer, physiological acid fertilizer (not mixed with phosphate fertilizer), fine soil mixed use, surface application is not good, should be turned into the soil with the arable land, fertilization should be even.
2, the root is used. Use zinc oxide (0.1 ~ 0.2% concentration) solution to root, but the rooting time is not too long, usually 3 minutes. If the time is too long, it will cause phytotoxicity. The root is especially suitable for vegetable transplanting.
3. Soaking seeds for use. The zinc sulfate is formulated into a solution of 0.02-0.05%, and the seed and the soaking solution are preferably 1:1 (that is, one kilogram of seed is mixed with one kilogram of the solution), and after being immersed for 6 to 12 hours, it is taken out and dried, and should not be exposed to sunlight. Should be dry.
4, seed dressing. The amount of zinc sulfate seed dressing is preferably 2 to 6 grams per kg of seed. The specific operation is to first dissolve the zinc fertilizer with a small amount of water, and then dilute with water. When seeding, all the seeds are stained with zinc solution. The solution should not be used. More, in the end, it is better to absorb all the solutions. Generally, 500 grams of seeds should be used with 50 grams of water. Peanuts and soybeans can be added appropriately. The seeds are dried and then sown.
5, topdressing use. 0.5 to 1 kg of zinc sulphate mixed with a certain amount of fine soil or water, applied to the soil during the growing season of the crop, and can be sprayed on various crops, fruit trees and vegetables, and sprayed with crops. Fast, cost-saving, good effect, at the same time can be sprayed with pesticide or urea, 50-100 grams of zinc sulfate per acre, 50 kg of water after dissolving with water, foliar spray after 4 pm, corn spray When applying, pay attention to the solution and try not to infuse the heart leaf to avoid burning the plant. The concentration of sprayed zinc fertilizer and the amount of spray can be increased or decreased depending on the size of the plant. If the concentration is excessively damaged during spraying, attention should be paid.
1. Use as a base fertilizer. The use of zinc sulphate 1 ~ 2.5 kg, zinc fertilizer and organic fertilizer, physiological acid fertilizer (not mixed with phosphate fertilizer), fine soil mixed use, surface application is not good, should be turned into the soil with the arable land, fertilization should be even.
2, the root is used. Use zinc oxide (0.1 ~ 0.2% concentration) solution to root, but the rooting time is not too long, usually 3 minutes. If the time is too long, it will cause phytotoxicity. The root is especially suitable for vegetable transplanting.
3. Soaking seeds for use. The zinc sulfate is formulated into a solution of 0.02-0.05%, and the seed and the soaking solution are preferably 1:1 (that is, one kilogram of seed is mixed with one kilogram of the solution), and after being immersed for 6 to 12 hours, it is taken out and dried, and should not be exposed to sunlight. Should be dry.
4, seed dressing. The amount of zinc sulfate seed dressing is preferably 2 to 6 grams per kg of seed. The specific operation is to first dissolve the zinc fertilizer with a small amount of water, and then dilute with water. When seeding, all the seeds are stained with zinc solution. The solution should not be used. More, in the end, it is better to absorb all the solutions. Generally, 500 grams of seeds should be used with 50 grams of water. Peanuts and soybeans can be added appropriately. The seeds are dried and then sown.
5, topdressing use. 0.5 to 1 kg of zinc sulphate mixed with a certain amount of fine soil or water, applied to the soil during the growing season of the crop, and can be sprayed on various crops, fruit trees and vegetables, and sprayed with crops. Fast, cost-saving, good effect, at the same time can be sprayed with pesticide or urea, 50-100 grams of zinc sulfate per acre, 50 kg of water after dissolving with water, foliar spray after 4 pm, corn spray When applying, pay attention to the solution and try not to infuse the heart leaf to avoid burning the plant. The concentration of sprayed zinc fertilizer and the amount of spray can be increased or decreased depending on the size of the plant. If the concentration is excessively damaged during spraying, attention should be paid.
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