1. Morphological characteristics:

Kale is a biennial or perennial herb, about 60-150 cm tall. The lower leaves are large, lyrate-pinnatipartite, up to 40 centimeters long, with colored veins, and petiolate; the terminal lobes are large, rounded at the tip, crookedly cordate at the base, undulate at the margins, crenulate, and the apical lobes are 3-5 pairs, obovate, and the upper leaves are oblong, entire, and amplexicaul, and all the leaves are fleshy, glabrous, and glaucous-creamy.

Racemes up to 30 cm or longer in fruit; flowers pale yellow, 10-15 mm in diameter; sepals oblong, erect, 8-11 mm long; petals obovate, 15-20 mm long, apically rounded, clawed. Long-horned fruit cylindrical, 5-10 cm long; beak 5-10 mm long, seedless; fruiting pedicel ca. 2 cm long; seeds globose, ca. 2 mm in diameter, gray-brown.

The appearance of datura resembles radish, plant height of about 20-50 centimeters, underground with round or oval taproot, small varieties of only a few tens of grams, large varieties weighing more than 10 kilograms. Leaves have pinnately compound or spatulate lobed leaves, with coarse hairs, flowers terminal, corolla yellow, root skin with white, light green or purple.

2, growing environment:

Kale like mild and humid, plenty of light. More cold hardy, also has the ability to adapt to high temperature. Growing temperature 15-20 degrees. Fleshy stem expansion period, such as more than 30 degrees high temperature fleshy easy to fibrosis. The choice of soil is not very strict, but it is suitable for planting in humus-rich clay loam or sandy loam. Seedlings of kale must pass through vernalization at 0-10 degrees, and then draw, flower and fruit under long sunshine and moderate temperature.

Kohlrabi prefers coolness, does not tolerate heat, fertility moderate temperature 15-22 degrees.

Kale:

Kale (Brassica oleracea L.) is an annual or biennial herbaceous plant in the genus Brassica of the Cruciferae family, and is one of the important vegetables in China. In addition to Brassica oleracea originated in China, all varieties of kale originated from the Mediterranean Sea to the North Sea coast. As early as 4000 ~ 4500 years ago in ancient Rome and the ancient Greeks have been cultivated, northeast China is commonly known as "big head vegetable".

Turnips:

Turnips, also known as cranberries, kudzu, big head of cabbage, round beetroot, round root, panchayote, white radish, Northeast China, known as Bryuk, Latin name Brassicarapa, Brassica species turnip subspecies of the genus Brassica, can form a fleshy root of biennial herbs. Fertile fleshy roots for food, fleshy roots tender, dense, for frying, cooking or pickling. It is cultivated in Europe, Asia and the Americas.