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(1) On the 20th, Daigen Japan introduced the red cultivars, which are white and tender, spherical, 2 to 3 cm in diameter, and 15 to 20 grams in weight. The growth period is 20 to 30 days, and the appropriate temperature for fertility is about 20°C.
(2) On the 40th, Daigenchi was introduced in Japan. The root of the meat was spherical, red in color, and tender, with a diameter of 2 to 4 cm and a single ball weight of 20 to 25 grams. It was mild and warm, and was resistant to heat and fertility. 15 to 22 °C, more than 25 °C easy convulsions, growth period of 30 to 40 days, winter production delay of 5 to 7 days.
In addition, there are cherry radish varieties such as Fuding Radish, Beijing Cherry Radish, Shanghai Red Carrot and Northeastern Dish Radish. Appropriate water radish varieties are four water radish, five water radish, Keshan red, red radish and so on.
2. Arrangement The cherry radish has a short growing period and can generally be harvested about 30 days after sowing. The water radish can be harvested 50 to 60 days after sowing, and it is easy to intercropping and interplanting with crops such as tomato and kidney bean. Therefore, the supply of annual radish in the northern solar greenhouse can be supplied on the anniversary of annual production, and the sowing date is not strictly required. The sowing date and the sown area should be mainly determined according to the market demand. Such as sowing in late November, before and after the Spring Festival harvest; sowing in early February, harvested in April.
Seasonal radish greenhouse cultivation type
1. Types and Varieties There are many types of radish, which can be divided into spring radish, summer radish, autumn radish, and season radish depending on the cultivation season. The varieties commonly used in the production of solar greenhouses for production are mainly radish, radish and cherry radish.