The cauliflower is rich in nutrients, has high edible value and economic value, and can be planted all year round. However, in the process of planting cauliflower, fertilization is the most important. Whether fertilization is appropriate will directly affect the growth of cauliflower, so today Xiaobian talks about the technical points and precautions of cauliflower fertilization. First, fertilization points 1. Seedling fertilization. Commonly used seedlings for vegetable planting include seeding and seedling raising, seedling raising and so on. Take the seedlings of Isabel as an example, it can apply 1500-2000 kg of decomposed organic fertilizer to the seedbed, and mix it evenly with the fine soil. About 20 days after sowing, the seedlings usually grow to 3-4 true leaves. At this time, the thin fertilizer is applied once, and when the transplanting is planted, the thin fertilizer is applied again. 2. Transplanting and fertilizing. Generally, 5000 kg of farmyard manure and 30-50 kg of compound fertilizer are applied per mu, and the soil is deficient in calcium, magnesium and iron. A small amount of medium and trace element fertilizer can be added, and the soil is mixed with fine soil to make sputum. 3. Manage topdressing. If the base fertilizer is insufficient when the seedlings are fixed, the appropriate amount of diluted manure can be simultaneously applied while pouring the seedling water. When the cauliflower enters the rosette period, it is necessary to apply 15-20 kg of urea to the crop, because if the soil is deficient in this period, the cauliflower will grow poorly due to the vegetative body, causing the flower bulb to come out early and also easy to loosen the ball. In the plant small flower ball formation, the grower needs to topdress 2 times, 10-15 days after the first top dressing, and then chase 1 time fertilizer. In the middle and late stages of flower bulb expansion, 0.1% borax solution can be sprayed to prevent cracking of the flower ball. Second, the matters needing attention 1. Prevent "deficiency syndrome". In the growing season of cauliflower, the lack of fertilizer and water is likely to cause problems such as small growth of leaves, small flower balls, and cracked flowers. (1) Calcium deficiency. In the late stage of cauliflower, if the soil lacks calcium, the tip and leaf edge of the bulbous lobe will turn over, and the leaf edge will gradually yellow and dry, and will wither from the upper leaf. Control measures: When the vegetable farmers are preparing for the land, they can apply 75 kg of lime. When the symptoms of calcium deficiency are found, the leaves are sprayed with 0.2% high-efficiency calcium. If the situation is serious, it can be sprayed once more every 5 days. (2) Boron deficiency. The main manifestation is that the leaves are shorter, the growth of the parietal lobe is blocked, the leaves are rolled outward, and the yellow leaves start from the lower leaves. If the flower is deficient in boron, it can cause the stem of the cauliflower to be hollow. In addition, the flowering of the cauliflower phenomenon, but also because the soil is deficient in boron. Control measures: Before transplanting, when the growers are preparing for the soil, the base fertilizer should contain boron as much as possible, such as 1.5 kg of borax. Alternatively, spray a 0.2% borax solution 2-3 times during the bud stage of the cauliflower. (3) Iron deficiency. It appears that the color of the upper leaf veins turns pale green or yellow. Control measures: increase the application of decomposed organic fertilizer, or spray 1% urea iron on the foliage. 2, to prevent rotten roots. In the open field planting cauliflower, due to excessive rain, the soil moisture of the vegetable garden is large, airtight and other factors, the cauliflower is prone to rotten root problems, the roots are rust-colored rot, the new roots grow slowly, and the whole plant is wilting. The above are the technical points and precautions for the fertilization of cauliflower. Farmers who want to grow high-yield and high-quality cauliflower need to apply fertilizer at the right time. I hope the above can help farmers. For the wonderful pictures and popular comments about the fertilization of cauliflower, you may be interested in the following recommended contents. Welcome to read. Steroids,Corticosteroids,S4 Steroids Capsules,Steroid M K677 Shaanxi Hongbaiyi Biotech Co., Ltd. , https://www.sxhongbaiyi.com
