In the practice of agricultural production, farmers' friends have a certain understanding of the role of micronutrients, but there are still some problems in fertilization techniques. In order to avoid abuses and abuses, the six kinds of micronutrient fertilizer application and fertilization are now commonly used. The matters that should be paid attention to should be summarized as a reference for the majority of farmers. First, the amount of micro-fertilizer 1, zinc fertilizer (zinc sulfate). Alkaline fertilizer, suitable for any crop, as base fertilizer 1 kg per mu; with fertilizer under 250 g per mu, soaking with a concentration of 0.02% to 0.1% for 12 hours, seed dressing with 5 grams to 6 grams One kilogram of seed dressing, foliar spray of 0.01% to 0.5% per mu of about 100 grams to 150 grams. 2, manganese fertilizer (manganese sulfate). Acid fertilizer, suitable for beet, potato, wheat crops. Basal fertilizer 1 kilogram to 2 kilograms per mu; with fertilizer under 750 grams per acre; soaking with 0.1% to 0.5% soaking for 12 hours to 24 hours; 8 grams of seed dressing, 1 kilogram of water dressing; Surface spray concentration of 0.1% to 1.0%, mu of about 300 grams of fertilizer. 3, boron fertilizer (borax). Alkaline fertilizer, suitable for rapeseed, alfalfa, soybeans and fruit trees. Basal fertilizer 1 kilogram to 2 kilograms per mu; with fertilizer under 250 grams; 0.2% to 0.05% soaking time soaking seeds for 4 hours to 6 hours; seed dressing 4 grams per kilogram of seed; The solution is sprayed on the seed, the foliar spraying concentration is 0.1% to 0.5%, and the fertilizer is about 100 grams to 150 grams per acre. 4, molybdenum (ammonium molybdate). Alkaline fertilizer, suitable for leguminous and cruciferous crops. Basal fertilizer 1 kg to 2 kg per acre, soaking in a solution with a concentration of 0.05% to 0.1%, soaking cereal seeds for 2 hours, soybeans for 6 hours to 12 hours, dressing 4 kg per kg seed, first A 5% solution was sprayed on the dried seeds and mixed for 10 hours. The foliar spraying concentration was 0.1% to 0.5%. The fertilizer was about 100 grams to 150 grams per acre. 5, iron fertilizer (ferrous sulfate). Acid fertilizer, applicable to crops such as fruit trees, beans, beets, potatoes, etc., 5 kg to 10 kg of water per mus of base fertilizer (for fruit trees only), soaking seeds with a concentration of 0.05% to 0.1% of fertilizer soaked in corn and other cereals Seeds for 2 hours, soybeans for 6 hours to 12 hours, seed dressing with 4 grams of fertilizer per kilogram of seed, first formulated into a 5% solution and sprayed on the seed heap for about 10 hours, and the foliar spraying concentration was 0.05% to 3%. About about 300 grams to 600 grams of fertilizer per acre. 6, copper fertilizer (copper sulfate). Alkaline fertilizer, suitable for apples, beans, tomatoes and other crops. Basal fertilizer 1 kg to 2 kg per acre; 3 years to 5 years, one time, soaking concentration of 0.01% to 0.05% soak for 12 hours, seed dressing with 0.6 grams to 1.2 grams per kilogram of seeds, leaves Spraying concentration is 0.02% to 0.04%. In order to prevent the occurrence of phytotoxicity, 0.15% to 0.25% of hydrated lime can be mixed and sprayed. Second, pay attention to the application of trace fertilizer 1, pay attention to the concentration, the application of uniform. The demand for trace elements in crops is relatively small, and the range of micro fertilizers from lack to application is rather narrow. Therefore, it is necessary to prevent excessive usage and pay attention to uniform application. 2, pay attention to use with a large number of elements of fertilizer. In order to meet the demand of a large number of elements in crops, micro-fertilizer can show a significant increase in production. 3, pay attention to the degree of response of various crops to micro-fertilizer, planting the same crop year after year, or single application of fertilizer containing large amounts of elements, do not pay attention to increase the application of organic fertilizer land, it is prone to trace element deficiency.
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