1. Application of organic fertilizer to improve quality: the supply of early nutrients in carrots is mainly based on base fertilizer, and the base fertilizer should be mainly pigs, chickens, cattle, horse manure and human urine, 2000-2500 kg per mu. The applied organic fertilizer must be fully decomposed, otherwise it will easily lead to abnormal roots, affecting its yield and quality.
2. Nitrogen, phosphorus and potassium are used together: nitrogen can promote the growth of branches and leaves, and synthesize more nutrients; phosphorus is beneficial to nutrient operation and enhances quality. It has a great influence on the initial growth and development of carrots, but has little effect on the expansion of fleshy roots. Therefore, it is generally applied in the base fertilizer; potassium can promote the meristematic activities of the root formation layer, and the yield increase effect is obvious. Therefore, the combination of the three elements can achieve high yields. For every 1000 kg of carrots produced, it needs to absorb 2.4-4.3 kg of nitrogen, 0.7-1.7 kg of phosphorus, and 5.7-11.7 kg of potassium, the ratio of which is 1:0.4:2.6. . 1/2 of the required nitrogen fertilizer is applied as the base fertilizer, and the remaining 1/2 can be applied as a fertilizer when the leaf growth period and the fleshy root diameter reach 0.6 cm; all the required phosphate fertilizer can be used as the base fertilizer; Part of the potash fertilizer is used as the base fertilizer, and the rest is used for top dressing when the fleshy roots are swollen.
3. Application of micro-fertilizer: Carrots absorb more calcium. When the content of calcium 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 content, the more The more sugar and carotene content, the better the quality. The application of calcium magnesium phosphate fertilizer in the base fertilizer can be sprayed once in the seedling stage and the leaf growth stage respectively, and the 0.1%-0.25% boric acid solution or the borax solution is sprayed twice in the fleshy root expansion period.
Carrot fertilization points
Carrots are rich in nutrients and contain more carotene, sugar and mineral elements such as calcium, phosphorus and iron. They are known as small ginseng. However, in the cultivation process, due to improper fertilization, it often causes cracking, hollowness, deformity, quality aging and wood quality. The following is a summary of the fertilization points at the time of cultivation.
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