Radish is a cruciferous family, belonging to one or two-year-old herbaceous plants, and is one of the main vegetables of root vegetables. Radish has a large absorption of nitrogen, phosphorus and potassium. It is a high-yield crop with high fertilizer content. For every 4000 kilograms of radish produced, about 8.5 kg of nitrogen should be absorbed from the soil. Kg, 11.3 kg of potassium oxide, 3.84 kg of calcium oxide, the ratio is roughly 2.5:1:3.4:1.2.
In order to protect the high quality and high yield of radish, according to the technical requirements of pollution-free vegetable production, the following fertilization techniques are proposed for the growth characteristics of radish and its fertilizer requirements:
1, the principle of fertilization: based on organic fertilizer, apply radish special fertilizer; based on the base fertilizer, skillfully applied top dressing.
2. Applying the base fertilizer is the main link of high quality and high yield of radish. The base fertilizer should be applied on the basis of 2500-3000 kg of decomposed organic fertilizer per mu, and 40-55 kg of special fertilizer for radish. It is required to spread the whole layer, and after the application, it will be turned into the soil and smashed into the ground. This will make the seedlings grow strong and the fleshy roots develop well. When applying the base fertilizer, it is not possible to use the unfertilized organic fertilizer to avoid damage to the root system of the seedling and affect the yield.
3, in the application of topdressing, should master the principle of light before weight. The first top dressing is to apply thin human excrement between the lines when the seedlings grow two true leaves. The second top dressing in the second time after the seedlings, when the radish roots "break the belly", apply 15-20 kg of radish special fertilizer per acre. For small and medium-sized radishes with short annual growth and longevity, after 2 times of topdressing, the radish roots of the radish will rapidly expand, and no top dressing can be applied. For large autumn and winter radishes, the growth period is long. When the radish is exposed or the shoulders are exposed, it should also be applied with a fertilizer, and 10 kg of special fertilizer for radish is applied, which will have a significant increase in production.
In order to protect the high quality and high yield of radish, according to the technical requirements of pollution-free vegetable production, the following fertilization techniques are proposed for the growth characteristics of radish and its fertilizer requirements:
1, the principle of fertilization: based on organic fertilizer, apply radish special fertilizer; based on the base fertilizer, skillfully applied top dressing.
2. Applying the base fertilizer is the main link of high quality and high yield of radish. The base fertilizer should be applied on the basis of 2500-3000 kg of decomposed organic fertilizer per mu, and 40-55 kg of special fertilizer for radish. It is required to spread the whole layer, and after the application, it will be turned into the soil and smashed into the ground. This will make the seedlings grow strong and the fleshy roots develop well. When applying the base fertilizer, it is not possible to use the unfertilized organic fertilizer to avoid damage to the root system of the seedling and affect the yield.
3, in the application of topdressing, should master the principle of light before weight. The first top dressing is to apply thin human excrement between the lines when the seedlings grow two true leaves. The second top dressing in the second time after the seedlings, when the radish roots "break the belly", apply 15-20 kg of radish special fertilizer per acre. For small and medium-sized radishes with short annual growth and longevity, after 2 times of topdressing, the radish roots of the radish will rapidly expand, and no top dressing can be applied. For large autumn and winter radishes, the growth period is long. When the radish is exposed or the shoulders are exposed, it should also be applied with a fertilizer, and 10 kg of special fertilizer for radish is applied, which will have a significant increase in production.
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