Trace elements such as zinc, boron, manganese, copper, molybdenum, and iron have a small requirement for plant growth, but their importance in maintaining normal growth and development is the same as that of a large number of elements, and the nutrient content of plants in large quantities can fully meet the requirements of crops. Next, micro-fertilizer has a significant effect in increasing crop yields and improving product quality.
Zinc fertilizer zinc fertilizer for base fertilizer, seed fertilizer and top dressing. Zinc sulfate and zinc chloride are the most common applications. The usual dosage of zinc sulphate as a basal fertilizer is 12 kg per hectare. It can be mixed with physiological acidic fertilizers, but it should not be mixed with phosphate fertilizers. Zinc is not easy to move in the soil.
Boron-boron boron fertilizer is most commonly used in borax and boric acid, and it is a water-soluble, quick-acting boron fertilizer that can be used as base fertilizer, seed fertilizer, seed treatment, and extra-root fertilizer. In the case of boron deficiency in soil, the amount per hectare is 1.5~3 kg; the concentration of spray fertilizer outside the root is generally 0.025%~0.1% of boric acid solution or 0.05%~0.2% of borax solution, spraying 750~1125 kg per hectare; generally Soaking seeds with 0.01%~0.05% concentration for 6~12 hours, the specific gravity of the seed liquid is 1:1, it can also be used for rooting with 0.1%~0.2% solution at the time of transplantation; 0.4~1.0g/kg seed for seed dressing Boric acid or borax. The soil fertilization must be uniform, to avoid excessive concentrations in local areas, causing poisoning, can be mixed with nitrogen, phosphorus, organic fertilizers and other mixed applications.
In fruit trees, boron fertilizer is used as the base fertilizer to fertilize the trees in the amount of 20-30 grams (small trees) to 100-200 grams (large trees) of borax per tree. Boron fertilizer directly affects the growth and development of crop reproductive organs, so boron should be applied as soon as possible; because boron is not easy to move in the crop, it should be sprayed several times to increase fertilizer efficiency.
Manganese fertilizer commonly used manganese fertilizer is manganese sulfate, a water-soluble fast-acting manganese, applied to the neutral or alkaline soil, it is easy to transform into insoluble form. Therefore, fertilizer methods such as top dressing, soaking, or seed dressing are used. The soaking concentration of manganese sulfate is generally 0.1%~0.2%, soaking for 8 hours; when seed dressing is used, 4~8 grams per kg of seeds; outside the top dressing, the seedling stage and early stage of reproductive growth have good effects, and the spray concentration of field crops is 0.05%~0.1%, 0.3%~0.4% of fruit trees, spray 750~1300kg/ha, usually spray 1~2 times; 60~120kg/hectare for seed fertilizer, preferably with ammonium sulfate, chlorination Ammonium, potassium chloride and other physiological acidic fertilizers or superphosphate and other acidic fertilizers and organic fertilizers are mixed and applied to reduce soil fixation.
Copper manure copper fertilizer is also used as base fertilizer, seed fertilizer, seed treatment, top dressing and top dressing. The common copper fertilizer is copper sulfate. Copper sulphate is used as a base fertilizer and can be used 15 to 23 kilograms per hectare, preferably in combination with other physiological acid fertilizers. When dressing seed, use 1 gram of copper sulphate per kilogram of seed, dissolve the fertilizer first with a small amount of water, and spray evenly. On the seeds, dry and sowing; soaking concentration of 0.01% to 0.05%, soaking for 24 hours after soaking out the shade can be sown; foliar spray can be used 0.02% ~ 0.1% concentration. When applying, it is best to add 10% to 20% of slaked lime to prevent or reduce poisoning.
Molybdenum molybdenum fertilizer is also used as base fertilizer, seed fertilizer, and top dressing, and molybdate is widely used. Ammonium molybdate and sodium molybdate are commonly used for seed treatment and top dressing. Soaking with 0.05% ~ 0.1% ammonium molybdate solution, soaking for 12 hours; dressing seeds for 2 ~ 6 grams of ammonium per kg of ammonium molybdate, first dissolved with hot water, and then diluted to the required volume with cold water; outside the top dressing The commonly used 0.01% ~ 0.1% solution, usually in the seedling stage and spraying budding 1 ~ 2 times, with fertilizer solution 900-1125 kg per hectare. Soybean crops with rhizobial bacteria better. Molybdenum and phosphorus can promote each other, and molybdenum fertilizer can be used in combination with phosphate fertilizer. At the same time, nitrogen fertilizer can also be used.
Ferrous iron fertilizer is mostly used in ferrous sulfate. Because ferrous sulfate is rapidly converted into insoluble high-valent iron in the soil and fails, spraying is currently used. Spraying concentration is generally 0.75% ~ 1.0%, fruit trees are mostly sprayed before germination. The base fertilizer is selected for organic fertilizers that are easily decomposed and mixed with iron salts, which also has a certain effect on the prevention and treatment of iron deficiency disorders.
â–¡Wang Yi
Zinc fertilizer zinc fertilizer for base fertilizer, seed fertilizer and top dressing. Zinc sulfate and zinc chloride are the most common applications. The usual dosage of zinc sulphate as a basal fertilizer is 12 kg per hectare. It can be mixed with physiological acidic fertilizers, but it should not be mixed with phosphate fertilizers. Zinc is not easy to move in the soil.
Boron-boron boron fertilizer is most commonly used in borax and boric acid, and it is a water-soluble, quick-acting boron fertilizer that can be used as base fertilizer, seed fertilizer, seed treatment, and extra-root fertilizer. In the case of boron deficiency in soil, the amount per hectare is 1.5~3 kg; the concentration of spray fertilizer outside the root is generally 0.025%~0.1% of boric acid solution or 0.05%~0.2% of borax solution, spraying 750~1125 kg per hectare; generally Soaking seeds with 0.01%~0.05% concentration for 6~12 hours, the specific gravity of the seed liquid is 1:1, it can also be used for rooting with 0.1%~0.2% solution at the time of transplantation; 0.4~1.0g/kg seed for seed dressing Boric acid or borax. The soil fertilization must be uniform, to avoid excessive concentrations in local areas, causing poisoning, can be mixed with nitrogen, phosphorus, organic fertilizers and other mixed applications.
In fruit trees, boron fertilizer is used as the base fertilizer to fertilize the trees in the amount of 20-30 grams (small trees) to 100-200 grams (large trees) of borax per tree. Boron fertilizer directly affects the growth and development of crop reproductive organs, so boron should be applied as soon as possible; because boron is not easy to move in the crop, it should be sprayed several times to increase fertilizer efficiency.
Manganese fertilizer commonly used manganese fertilizer is manganese sulfate, a water-soluble fast-acting manganese, applied to the neutral or alkaline soil, it is easy to transform into insoluble form. Therefore, fertilizer methods such as top dressing, soaking, or seed dressing are used. The soaking concentration of manganese sulfate is generally 0.1%~0.2%, soaking for 8 hours; when seed dressing is used, 4~8 grams per kg of seeds; outside the top dressing, the seedling stage and early stage of reproductive growth have good effects, and the spray concentration of field crops is 0.05%~0.1%, 0.3%~0.4% of fruit trees, spray 750~1300kg/ha, usually spray 1~2 times; 60~120kg/hectare for seed fertilizer, preferably with ammonium sulfate, chlorination Ammonium, potassium chloride and other physiological acidic fertilizers or superphosphate and other acidic fertilizers and organic fertilizers are mixed and applied to reduce soil fixation.
Copper manure copper fertilizer is also used as base fertilizer, seed fertilizer, seed treatment, top dressing and top dressing. The common copper fertilizer is copper sulfate. Copper sulphate is used as a base fertilizer and can be used 15 to 23 kilograms per hectare, preferably in combination with other physiological acid fertilizers. When dressing seed, use 1 gram of copper sulphate per kilogram of seed, dissolve the fertilizer first with a small amount of water, and spray evenly. On the seeds, dry and sowing; soaking concentration of 0.01% to 0.05%, soaking for 24 hours after soaking out the shade can be sown; foliar spray can be used 0.02% ~ 0.1% concentration. When applying, it is best to add 10% to 20% of slaked lime to prevent or reduce poisoning.
Molybdenum molybdenum fertilizer is also used as base fertilizer, seed fertilizer, and top dressing, and molybdate is widely used. Ammonium molybdate and sodium molybdate are commonly used for seed treatment and top dressing. Soaking with 0.05% ~ 0.1% ammonium molybdate solution, soaking for 12 hours; dressing seeds for 2 ~ 6 grams of ammonium per kg of ammonium molybdate, first dissolved with hot water, and then diluted to the required volume with cold water; outside the top dressing The commonly used 0.01% ~ 0.1% solution, usually in the seedling stage and spraying budding 1 ~ 2 times, with fertilizer solution 900-1125 kg per hectare. Soybean crops with rhizobial bacteria better. Molybdenum and phosphorus can promote each other, and molybdenum fertilizer can be used in combination with phosphate fertilizer. At the same time, nitrogen fertilizer can also be used.
Ferrous iron fertilizer is mostly used in ferrous sulfate. Because ferrous sulfate is rapidly converted into insoluble high-valent iron in the soil and fails, spraying is currently used. Spraying concentration is generally 0.75% ~ 1.0%, fruit trees are mostly sprayed before germination. The base fertilizer is selected for organic fertilizers that are easily decomposed and mixed with iron salts, which also has a certain effect on the prevention and treatment of iron deficiency disorders.
â–¡Wang Yi