Overview:Kale (Brassinca oleracea var. capitata) is also known as knotted kale, cabbage, cabbage, cabbage. Cruciferae, brassicas in the genus can form leaf ball varieties, one, two-year-old herb. Leaf ball for food, can be fried, boiled, cold, pickled or dried vegetables. Cultivated around the world, for Europe, the Americas, the main vegetables, China are cultivated throughout the country, such as the selection of suitable varieties of rows of seeds, staged harvest, can be supplied annually.

Characteristics: the main root is undeveloped, fibrous roots, mainly distributed in the depth of 30 centimeters of soil, water absorption, fertilizer, drought, moisture resistance. Stem in the nutrient growth period short and thick, flowering stem tall. Leaves have obvious changes at all stages, basal and young leaves have petioles, rosette stage has leaf wings, petioles are not obvious. Kale is a raceme, heterogamous pollinated crop, interspecific hybridization should be prevented, and natural isolation should be above 2000 meters. Fruit for the angle fruit, easy to crack at maturity, harvested too late easy to lose seeds, seed weight 3 grams - 4 grams

Varieties: Knotting kale is just a variant of kale, belonging to the leaf with kale in addition to knotting kale, there is also not knotting collard greens. In the ball kale has because of its leaves wrinkled called wrinkled leaf kale. There is red kale because of its purple-red leaf color, and it is called clasping kale because of its small leaf ball formed by the side buds in the leaf axils. The color, leaf ball size, and leaf smoothness of these kales are different, but they are all leaf kales, and their cultivation techniques are similar to those of the common nodular kale. The cultivation technology is similar to that of the common nodular kale. In the common nodular kale, according to the shape of the leaf ball, it can be divided into three categories of flat head, round head and pointed head, and according to the maturity period, it can be divided into three categories of early maturity, medium maturity and late maturity. The main varieties in the JAC basin are: Chunfeng, Xiaguang, Su Chen No. 1, Successful Big Flathead, Jingfeng No. 1, Late Fung, Black Leaf Small Flathead, and Surprise Spring.