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1. Apply organic fertilizer to improve quality. The supply of early nutrients in carrots lies mainly in the base fertilizer. The base fertilizer should be mainly pigs, chickens, cattle, horse manure and human excrement, 2000-500 kg per mu, and then spray a new high-lipid film 800 times to protect the fertilizer and prevent the invasion of bacteria. Soil; the application of organic fertilizer must be fully decomposed, otherwise it will lead to the production of roots, affecting its yield and quality.
2. Nitrogen, phosphorus and potassium are combined. Nitrogen can promote the growth of branches and leaves to synthesize more nutrients; phosphorus is beneficial to nutrient operation, enhances quality, and has a great influence on the initial growth and development of carrots. It has little effect in the period of meat swell, usually applied in base fertilizer; potassium can promote root formation. The sub-segment activities have obvious effects on increasing production. Generally, 1000 kg of carrots are produced in acre, and nitrogen (N) 2.40-4.30 kg, phosphorus (P2O5) 0.70-1.70 kg, and potassium (K2O) 5.70-1.70 kg are required, and the ratio is 1:0.40:2.6. All the required phosphate fertilizer can be applied as base fertilizer; part of the required nitrogen fertilizer and potassium fertilizer are applied as base fertilizer, and the rest can be applied as top dressing when the leaf growth period is high, the fleshy root diameter reaches 0.60 cm, and the fleshy root is swollen. After fertilization, spray a new high-fat film 800 times liquid fertilizer utilization rate.
3. Application of micro-fertilizer. Carrots absorb more calcium. When the calcium content is high, the content of carrot sugar and carotene will decrease. When calcium deficiency, it will cause hollow disease. The absorption of magnesium by carrot is not much. The more magnesium, the sugar content and carotene. The more the content, the better the quality. The application of calcium magnesium phosphate fertilizer in the base fertilizer can increase the content of calcium and magnesium in the soil. For boron fertilizer, it can be sprayed once in the seedling stage and the leaf growth stage, and the 0.10%-0.25% boric acid solution or borax solution is sprayed twice in the fleshy root expansion period, and the new high-fat film 800 times liquid is used to raise the nutrient. Fertilizer active ingredient utilization rate, and when the fleshy root begins to expand, it should be sprayed in time to make the nutrient transport conduit of the underground fruit thicker, improve the fruit fruit swelling and vitality, make the carrot fruit surface smooth, fruit shape bodybuilding, high quality and high yield.
Carrot scientific fertilization promotes high yield
Carrots are rich in nutrients and contain more carotene, sugar and mineral elements such as calcium, magnesium and iron. The scientific fertilization points are beneficial to increase the yield of carrots. At the same time, the following points should be noted in fertilization:
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