Chain of safe vegetables and fruits in off-season

Seeds and seed treatment: cabbage in off-season and early season, heat-resistant varieties such as Takii (T40) should be selected; KK Cross, Thuy Phong, Rome. Before sowing seeds, they should be treated with warm water (3 boiling 2 cold) for 20 minutes or treated with fungicides. Then soak in cold water for 8-10 hours before sowing. It is best to sow the seeds in the potting tray to ensure that the seeds grow evenly, and the seedlings will not be lost due to heat or heavy rain. If sowing on a bed, sowing in a canal and making a plastic dome, or white canvas to cover rain and sun. A suitable amount of seeds is 2 gr / m2. Season: Spring crop is sown from January to February, cultivated from February to March, harvested from April to May. Early crop: sown at the end of June, early July, planted at the end of July and August, harvested September to May. 10. Fertilizer varieties for plant protection drugs are used and strictly controlled to ensure the quarantine time to harvest products to ensure safety for users.