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2. Application method. (1) Suitable for basal fertilizer, not suitable for seed fertilizer. Can be applied alone, can also be mixed with farm fertilizer. 2 can be used as fertilizer, should be applied early and deep. Rice can be planted before transplanting in the depression, or after planting, to maintain 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.
3. 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. Severe 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 to 6 to 10 kilograms per mu; steel slag silicon with an effective silicon content of 30 to 40% can be applied to 30 to 50 kilograms per mu; effective silicon content is lower than For 30%, 50 to 100 kg can be applied per mu.
4. Si fertilizer can be stored for a long period of time, 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.
5. Considerations for the application of silicon fertilizers. 1 must cooperate with other fertilizers. Silicon can not replace nitrogen, phosphorus, potassium fertilizer, nitrogen, phosphorus, potassium, silicon scientific application, in order 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.
Silicon fertilizer application technology
1. Determine whether to apply silicon fertilizer based on the abundance of silicon in the soil. According to soil analysis tests to determine whether the local soil silicon content below the critical value, usually the effective silicon content in the soil in the range of 127 ~ 181 mg / kg is a lack of silicon soil. Application of silicon fertilizer has a significant increase in production.