Green cauliflower, also known as green cauliflower, broccoli, is a variant of kale vegetables, green flower bulbs as the product organ, edible organs in addition to flower bulbs, but also edible young stems. In addition to the cluster of flower buds developed at the top of the main stem, there are also lateral flower bulbs developed at the top of the lateral branches arising from the leaf axils. Native to the Mediterranean coast of Italy, it has been cultivated for more than two thousand years. Green cauliflower is rich in nutrients, green in color, fragrant in flavor, excellent in quality, and a variety of edible methods, which is a variety of special dishes with a better development prospect. Green cauliflower and ordinary cauliflower compared to a lot of similar habits, in fertilizer, management can be referred to.

Green cauliflower plants have a long reproductive period, the harvest period is also long, especially the top side of the flower ball and the species, the harvest period can be up to 2 ~ 3 months, need to consume a large number of nutrients; is a more fertilizer-demanding vegetables, the total amount of fertilizer with the common cauliflower is similar to the more stringent requirements of nutrients, can not appear in the lack of fertilizer. Pay attention to the supply of nitrogen nutrients during the whole life span, especially during the period of vigorous growth of leaf clusters is indispensable, otherwise the nodules are small and the commerciality is poor. In addition to nitrogen in the process of nodule development, but also pay attention to phosphorus, potassium nutrition to promote the accumulation of sugar and protein synthesis, is conducive to the formation of the flower ball. Cauliflower growth process requires 16 kg of nitrogen per mu, 20 kg of phosphorus, potassium 16 kg, in addition to a certain number of trace elements, such as boron, magnesium. Green cauliflower growth in the late stage should pay attention to the application of nitrogen fertilizer, too much nitrogen fertilizer is easy to cause soft rot disease and delayed harvest.

Green cauliflower fertilization, in addition to the application of adequate bottom fertilizer, but also several times for fertilizer. Early, top flower ball special varieties due to the short reproductive period, the source of nutrients to the bottom of the fertilizer; fertilizer in the planting of about 10 days and buds can be applied once. The top side of the flower bulb dual-purpose species and late maturing varieties due to the long reproductive period, the harvest period is also long need to fertilizer 3 to 4 times, 20 days after planting and buds once, the top of the flower bulb harvest and then apply 1 to 2 times to promote the development of the side of the flower bulb to improve the total yield. Fertilizer should be used fast-acting fertilizers, and pay attention to the matching of nitrogen, phosphorus and potassium; if the early partial application of nitrogen fertilizer, it will make the stem hollow, buds loose, quality is reduced; after harvest, the hollow stems are prone to rot in case of rain, which affects the yield of the side of the flower bulb.

(1) apply bottom fertilizer.

1000 to 2000 kg per mu of high-quality rotting organic fertilizer, potassium sulfate 15 kg / mu, calcium superphosphate 20 kg / mu.

(2) Follow-up fertilizer.

① nitrogen, phosphorus, potassium compound fertilizer 25 ~ 30 kg / mu, 10 ~ 15 days after planting; ② nodulation period when the size of the flower ball walnut, compound fertilizer 15 ~ 20 kg / mu; ③ late maturing varieties or top and side of the flower ball dual-use varieties can be pursued for another 3 times fertilizer, top and side of the flower ball dual-use varieties in the top of the flower ball after the removal of the top of the flower ball to promote the side branches of the flower ball growth, the amount of fertilizer for 15 ~ 20 kg / mu.