Choose good varieties such as Bai Yuchun, early spring big (small) root, April birth, Xiaozheng and so on. These varieties are imported from abroad, and are resistant to low temperature and rainy weather, and are not prone to convulsions, even in the early stage after convulsions. Spring sowing can be cultivated in large and medium sheds, or in small arch sheds. According to the characteristics and climatic conditions of the varieties, we will aim at the off-season supply of radish from April to May and determine the suitable sowing date. It can be cultivated in greenhouses or in the middle shed. It is suitable for planting in early February. It will be listed in the middle and late April. If it is covered with small arch sheds, it will be planted in late February and early March, and will be listed from late April to early May. It is better to choose the sandy loam with deep soil, good drainage and fertile and loose soil. At the same time, it is required that the previous work must not be a cruciferous crop (such as cabbage, cabbage, autumn radish, etc.). The spring radish has a high yield, the fleshy root is long, and the late growth has the characteristics of upwards and shoulders. It is necessary to implement "two ploughing and two hoeing". The tillage work should be completed in January. The first ploughing should be deep, and the larger soil mass should be destroyed. When the second ploughing is carried out, combined with the application of base fertilizer, 2000 kg of faecal manure per mus, 50 kg of ternary compound fertilizer, fully flattened and leveled. It is best to use ridge cultivation to plant 2~3 seeds per hole. Field management should be given higher temperatures before sowing, 20 ° C ~ 25 ° C during the day, 10 ° C ~ 13 ° C during the night. Therefore, when planting, the film can be covered to increase the temperature. Coverage can be removed after emergence, but the temperature should be above 8 °C ~ 10 °C, otherwise it will cause convulsions when the low temperature time is long. After the seedlings are unearthed, it is necessary to have time and seedlings, so as not to crowd. In general, 2 to 3 leaves during the period of Miao Ding, and 1 seedling for each hole. After the emergence of the seedlings, the thin manure and manure water were applied once, and the second human excrement was applied after the seedlings were fixed. Prevention and control of pests and diseases should be treated with 10% sputum (one pass net, big hero, imidacloprid, Kangfuduo) to control aphids; 2.5% enemy killing to control yellow striata, cabbage caterpillar, larvae of larvae, etc.; Streptomyces control black rot. Timely harvesting of spring sowing radishes should be harvested before convulsions to avoid jealousy. The wintering radish can still be harvested normally when the height is 15~20 cm. Disclaimer: Some articles on this website are transferred from the Internet. If legal rights of third parties are involved, please inform this website. phone Organic Intermediates N-Hydroxy Succinimide,Pharmaceutical Intermediates 2 3-Dichloroaniline,Trifluoromethanesulfonic Anhydride,3-Chloroaniline Colorless Liquid Shandong YingLang Chemical Co.,Ltd , https://www.sdylhgtrade.com