Purple Cabbage Growth Requires Environmental Conditions
Purple cabbage and cabbage, purple cabbage, etc., Cruciferae is a biennial herb, native to the Mediterranean coast. Purple cabbage is a cold-tolerant vegetable with an average temperature of 7 to 25°C. Normally, the seedlings can grow normally. The optimum temperature for seed germination is 15~20°C. It takes 2~3 days to germinate. The minimum temperature of 2~3°C requires about 15 days to germinate. . Fertility optimum temperature is 18~20°C, suitable temperature for external leaf growth is 20~25°C, and optimum temperature for leaf bulb growth is 15~20°C. Can withstand short-term temperature of 3 ~ 5 °C and 35 °C above the temperature; 25 °C above the shortened stems easily elongate, the heart is not tight. A certain size of bacteria passes vernalization at 4 to 5°C, and it is not easy to pass vernalization above 15°C. Purple Cabbage is a long-day plant. It is sunny and sunny. In the absence of vernalization, a long day of sunshine is conducive to growth. Shorter and weaker days of sunshine are conducive to the growth of the ball; vernalization is accompanied by high temperature and long days of sunshine. flowering. Purple cabbage is hi-fertilizer, fertilizer-resistant, and has a large amount of fertilizer, and the ratio of nitrogen, phosphorus, and potassium is 3:1:4. Phosphate fertilizer has an effect on the firmness of purple cabbage. It is suitable for neutral and slightly acidic soils, and can grow normally on mild saline soils. Purple Cabbage Hi grows well in humid environment conditions, with 80%~90% relative humidity and 70%~80% soil moisture content. Purple cabbage has a certain degree of drought tolerance at the seedling stage and rosette stage. During the ball stage, water should be fully supplied to ensure that the soil is moist and make the ball tight. ZHEJIANG SHENDASIAO MEDICAL INSTRUMENT CO.,LTD. , https://www.shendasiaomed.com