Vegetable blind zinc zone, must know!
Although vegetable production requires zinc supplementation, it does not mean that the more zinc fertilizer is used, the better. Vegetable farmers must supplement the vegetable with zinc fertilizer.
Do not overdose
The reason why zinc fertilizer is micro-fertilizer is that crops need less of it. Excessive application will cause toxic effects on crops (some vegetable farmers apply 3 kg of zinc sulfate when using base fertilizer, and zinc leaves are frequently supplemented in the later period. 667 square meters of zinc sulfate reached 250 grams), resulting in stagnation of crop growth, small and thin leaves, affecting normal photosynthesis.
Do not apply continuously in base fertilizer
Zinc fertilizer is generally effective as a base fertilizer for a long period of time. It can be applied once and lasts for 1-2 years. In addition to severe zinc-deficient soils, it is recommended that zinc fertilizer be applied once a year. However, in actual production, vegetable farmers will apply zinc fertilizer at the bottom of each stubble vegetable planting, resulting in the application of zinc fertilizer twice in a year, which makes the residual zinc fertilizer in the soil too large, and inhibits the absorption of other elements by the soil.
Do not mix with alkaline fertilizers and pesticides
Zinc mixed with alkaline fertilizers will react to reduce fertilizer efficiency. Similarly, when zinc is mixed with alkaline pesticides, the effectiveness of zinc and pesticide efficacy are also reduced. Moreover, if zinc fertilizer is mixed with phosphate fertilizer, it will easily form zinc phosphate precipitation, which not only reduces the effectiveness of zinc, but also reduces the fertilizer effect of phosphorus, so they should not be used at the same time.
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