It is mainly distributed in Jiangsu, Zhejiang and Shanghai in the middle and lower reaches of the Yangtze River, and is mainly used as green manure multiple cropping or rice-cotton interplanting and fruit-mulberry intercropping. The tender stems and leaves of cauliflower are high-quality vegetables in early spring with high economic value. The main local varieties are Gushan, Wenling, Yuyao and Dongtai cauliflower. Like warm and humid climate, suitable for growth and development in cold season. It has wide adaptability to soil, can be planted between ph 5.5 ~ 8.5 ~ 8.5 and can tolerate salinity below 0.2%. It can also resist certain acidity and grow on red soil; Poor tolerance, drought tolerance, shade tolerance and moisture tolerance are weak, and it grows vigorously under appropriate fertile soil conditions. The suitable temperature for cauliflower seed germination is 20℃, and under the condition of suitable water content, it will emerge 4 ~ 6 days after sowing. Sowing time should be determined according to local climate, soil and previous farming conditions. Sow in September ~ 10 in Jiangsu and Zhejiang provinces, and in spring in the north. The sowing amount is generally 6 ~ 8kg per mu (with pods). Broccoli is not barren, and the effect of increasing phosphorus and potassium fertilizer is very significant.
Plants can sprout and grow again. Alfalfa has strong adaptability to soil, but clay and alluvial soil which are rich in organic matter and have strong water and fertility conservation are the best.