First, look at soil fertilization: different soils contain different types of trace elements, only to understand the lack of a certain element in the soil, the corresponding application of a certain element of fertilizer can be effective. At present, soil content can be determined according to soil parent material, soil texture, soil pH and the like. Such as boron deficiency, zinc deficiency, boron containing less than 0.5ppm, zinc containing less than 1.5ppm, is a lack of micro-fertilizer. Before you can figure it out, you can apply it in a small area and apply it in a large area. Otherwise, if you hear about what is missing, it may be counterproductive.
Second, as the application of the application: different crops need different amounts of various micro-fertilizers, such as rice needs silicon; rape, legumes, etc. need boron; garlic, onion needs selenium.
Third, the right amount of application: micro-fertilizer is generally used as a base fertilizer. 100-200 grams of boron per acre, or 100-150 grams of zinc fertilizer, or 100-250 grams of ferrous sulfate, or 510 grams of copper sulfate, should not be abused.
Second, as the application of the application: different crops need different amounts of various micro-fertilizers, such as rice needs silicon; rape, legumes, etc. need boron; garlic, onion needs selenium.
Third, the right amount of application: micro-fertilizer is generally used as a base fertilizer. 100-200 grams of boron per acre, or 100-150 grams of zinc fertilizer, or 100-250 grams of ferrous sulfate, or 510 grams of copper sulfate, should not be abused.
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