Kale is also known as kale, capsicum, or cabbage. It is a variant of Cruciferae, Brassica, Brassica, one or two years old herbs, cabbage vegetables. The tender young plants and young leaves can be eaten, and young plants can also be harvested before the convulsions. It is a specialty vegetable in our country and is also the main food market for the autumn and winter seasons in Guangdong. According to flower color, it can be divided into two types: white kale and yellow kale. White kale cultivation area is large and widely distributed. Generally divided into early, middle and late cooked. South China and Fujian and other places are mainly cultivated in autumn and winter and harvested from November to February. Or according to the characteristics of varieties, early-maturing varieties can be delayed to early summer and late-maturing varieties can be delayed and sown in the winter, so that the harvest can be started from September until April of the next year, and the supply period can be as long as 8 months. In addition to local daily consumption, it can also be sold to places such as Hong Kong, Macau and Beijing, and supplement the quality of green leafy vegetables in winter and spring in major cities in the north. It is planted in the Yangtze River valley in summer and autumn, and harvested in autumn and winter. The north is generally cultivated in the spring and autumn greenhouses, and it can be harvested in 50 to 70 days. Only should sell fresh. (1) Harvesting requirements When the calyx grows to the same height as the basal leaves, it is commonly known as "Flower" (cask diameter is about 1 to 1.5 cm, length is 20 to 25 cm), and the lower leaves should be promptly removed. Cut the calyx and bundle them into small ones, each weighing about 0.5 kg. Lateral filets are harvested when they are 15 to 20 cm in length. (II) Storage Characteristics and Storage Methods Kale is a vegetable with mainly fresh sales, and it is only suitable for short-term storage and short-to-medium-distance transportation. The optimum temperature for storage and transportation is 0°C. Freezing damage will occur in the long term below 0°C; relative humidity should be above 95%. Experiments show that as the storage temperature increases, the storage period is shortened. The performance is as follows: the leaves accelerate yellowing and falling off, which results in loss of commodity value. Because the edible part of the kale is mainly genital organs, it still maintains its growth advantage after harvest, and has strong respiratory metabolism. Therefore, even if it is stored in the cold storage or under proper temperature conditions, the basket must be installed and the ventilation should be changed. gas. (3) The quality standards for listing are green, the leaves are dark green, the leaves are neat, sleek and fresh; there is no aging, no yellow leaves, no pests and diseases; the main and side poles are bundled together.
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