Carrot is a vegetable species that likes moisture and fertilizers, especially in the flourishing period of fleshy roots, where more water and fertilizer are needed. It is necessary to rationally arrange the supply of water and fertilizer for each growth period to produce high-quality carrots. First, moisture management The sowing of carrots in Guangdong is generally arranged from September to November, and the growing period is about 100 to 120 days. During this period, the air is relatively dry, the soil evaporation is large, and the soil should be kept moist after sowing, and about 9 to 11 days after sowing. Emergence. The demand for water during the seedling period of carrots is not very large. When the soil is slightly dry, it is watered again, which is good for rooting and prevents seedlings from growing too long. When entering the flourishing period of the leaf, it is necessary to properly control the watering, restrain the blade length, promote the downward extension of the main root and the development of the fibrous root. Carrot meaty root hypertrophy period is the period with the most demand for water, watering should be timely, and we should always keep the soil moist, which can promote the rapid expansion of the fleshy root. Two months before the harvest, no watering or watering is needed to prevent the carrots from cracking. Second, fertilizer management 1, the application of basal fertilizer Generally, about 4,000 to 5,000 kilograms of cooked pigs and cow dung are used per acre, and 30 kg of compound fertilizer can be mixed together as a basal fertilizer. When the soil is prepared before planting, fertilizer and soil must be fully fused. The effect of basal fertilizer on the shape of fleshy roots is relatively large. Organic fertilizers must be fully decomposed and the amount of fertilizers used should not be excessive, which can reduce the occurrence of malformed carrots. 2, top dressing In addition to the application of sufficient basal fertilizer, 2 to 3 top dressings are required depending on the growth period of carrots. The first top-dressing fertilizer is applied about 25 days after emergence and there are 3 to 4 true leaves. Ammonium sulfate 3 kg, superphosphate 3 kg and potassium fertilizer 3 kg per mu. The second top-dressing was carried out at the peak of leaf growth. About 7 kg of ammonium sulfate per acre and 2 kg of potassium fertilizer were applied. Into the peak of fleshy root enlargement, a third fertilizer can be arranged, applying 7 kg of ammonium sulfate per mu, 4 kg of superphosphate, and 4 kg of potash. In addition to using chemical fertilizers for topdressing, it is also possible to use diluted manure urine dilutions, which can irrigate between 1,000 and 2,000 kilograms per mu. During mid-fertility dressing, appropriate soil can be used to prevent radish from being exposed too much. 3 Ply Breathable Face Masks,Non-Woven Disposable face Mask,Medical Disposable Face Mask,Medical Disposable Face Mask Dongguan Keyutai Mask Co., Ltd. , https://www.maskkytai.com