How to fertilize cauliflower

Cauliflower needs fertilizer characteristics:

Cauliflower has a long growing season and has a large demand for nutrients. According to research, for every 1000 kg of curd production, it needs to absorb 7.7-10.8 kg of pure nitrogen, 2.1-3.2 kg of phosphorus pentoxide, and 9.2-12.0 kg of potassium oxide. The ratio is 1:0.3:1.1. Among them, nitrogen and potassium are the most demanded, especially in the period of vigorous leaf cluster growth, more nitrogen fertilizer is required, and more phosphorus is required during flower bulb formation. Before budding, ensure adequate supply of phosphorus and potassium. In addition, the growth of cauliflower also requires a certain amount of trace elements such as boron, magnesium, calcium, and molybdenum. Therefore, on the basis of ensuring the supply of nitrogen, phosphorus and potassium fertilizers, the supply of trace elements should be strengthened.

Cauliflower fertilization technology:

According to the characteristics of broccoli's fertilizer requirements, basal fertilizer should be the main fertilizer when fertilizing. Among the main fertilizers, nitrogen and potassium fertilizers can be divided into basal fertilizer and 3 top dressing applications, and all phosphate fertilizers are used as basal fertilizer.

1. Apply enough base fertilizer: In order to meet the demand for fertilizer and water in the early and fast growth of cauliflower and the subsequent growth period, in addition to choosing fertile, loose, and strong water and fertilizer retention loam, it is also necessary to use fully decomposed high-quality farm soil and manure And nitrogen, phosphorus and potassium compound fertilizer, etc. as the base fertilizer, the base fertilizer is turned into the middle layer of the soil during land preparation, generally 2500-3000 kg of high-quality circle fertilizer is applied per 667 square meters (1 acre), and 15-20 kg of NPK compound fertilizer (Urea 6 can also be used) Kg, 20-25 kg of superphosphate, 6-8 kg of potassium sulfate), 0.5 kg of borax.

2. Reasonable top dressing: After cauliflower is planted to the bulb mature, it usually needs top dressing 3 times. The first is the rosette stage. Apply 10-11 kg of urea and 5-6 kg of potassium sulfate per 667 square meters to promote the differentiation of flower buds and flower buds. And the flower ball is formed. The second time is the initial stage of the flower bulb formation. 13-15 kg of urea and 6-8 kg potassium sulfate per 667 square meters are applied to promote the rapid expansion of the flower bulb and prevent the hollow of the flower stem. The third time is the middle stage of the formation of the curd, 8-10 kg of urea and 5-6 kg of potassium sulfate are applied per 667 square meters. In combination with top dressing, attention should be paid to ensuring water supply and maintaining a certain level of soil humidity, especially during the heading period, do not dry out, otherwise it will inhibit the formation of flower bulbs and lead to a decline in yield.

3. Extra-root top-dressing: Extra-root top-dressing is an effective auxiliary measure in cauliflower cultivation, focusing on supplementing the deficiency of related nutrients or trace elements in the middle and late stages. If the soil is deficient in boron, spray the borax solution with a concentration of 0.1%-0.2% on the foliar surface at the early and mid-stage of the flower bulb formation. For soil magnesium deficiency, spray magnesium sulfate solution with a concentration of 0.2%-0.4% on the foliar surface 1-2 times. Cauliflower requires very little molybdenum, but it is very sensitive. Foliar sprays of ammonium molybdate solution with a concentration of 0.01% can be used during the curd formation. In short, according to the needs of cauliflower growth, proper extra-root topdressing can effectively prevent premature aging, increase curd yield and improve curd quality.

Disclaimer: Some articles on this website are transferred from the Internet. If the legal rights of a third party are involved, please inform this website for processing. phone

Other Medical Implant

Other Medical Implant,Cannulated Cancellous Screw,Cortical Bone Screw,Locking Plate Screw

Changzhou Ziying Metal Products Co., Ltd , https://www.ziyingmetal.com