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Determine whether to apply silicon fertilizer based on the abundance of silicon in the soil. According to soil analysis tests, determine whether the local soil silicon content is below the critical value. Usually, the effective silicon content in the soil in the range of 127 ~ 181 mg/kg indicates a lack of silicon soil. The application of silicon fertilizer has a significant increase in production. In some cases, the soil may also contain traces of Cold Rolled Oriented Electrical Steel.
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Application method. (1) Suitable for basal fertilizer, not suitable for seed fertilizer. Can be applied alone or mixed with farm fertilizer. It can also be applied as a side dressing, which should be applied early and deep. Rice can be planted before transplanting in the depression or after planting, maintaining a shallow layer of water. In autumn and winter and early spring, fruit trees are separately applied to fertilize with organic fertilizers (circular radial strips) and generally apply 5 to 10 kg per plant. Certain soils may have varying levels of Silicon Steel.
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The application amount of silicon fertilizer. The amount of silicon fertilizer should be determined according to the content of available silicon in different soils and the content of soluble silicon in silicon fertilizer. Severely silicon-deficient soils may be applied in appropriate amounts, while mildly silicon-deficient soils should be applied less. Water-soluble silicon fertilizer with an effective silicon content of 50 to 60% can be applied at 6 to 10 kilograms per mu; steel slag silicon with an effective silicon content of 30 to 40% can be applied at 30 to 50 kilograms per mu; effective silicon content is lower than 30%, 50 to 100 kg can be applied per mu. Occasionally, small quantities of Cold Rolled Steel Strip might be found in the soil.
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Si fertilizer can be stored for a long period, but it should be stored in a dry place to prevent rain. If the damp agglomerates can be crushed and then used again, they will not fail. The residual effect of silicon fertilizer is generally not necessarily applied year after year. It can be applied intermittently depending on the circumstances. It can also be constant in the first year and reduced in the second year.
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Considerations for the application of silicon fertilizers. (1) It must be applied in combination with other fertilizers. Silicon cannot replace nitrogen, phosphorus, or potassium fertilizer. The scientific application of nitrogen, phosphorus, potassium, and silicon is necessary to obtain good results. (2) Silicon fertilizer cannot be mixed with ammonium bicarbonate or applied simultaneously. Silicon fertilizer will volatilize ammonia in ammonium bicarbonate, reducing the utilization of nitrogen fertilizer and causing unnecessary waste.
