The fertilization of green vegetables is mainly based on the improvement of soil fertility by organic fertilizers, but can't green vegetables really use chemical fertilizers? Green food and fertilizer application are not contradictory Do n’t set green foods against the application of chemical fertilizers. Chemical nitrogen fertilizers are inorganic nitrogen sources that can be directly absorbed by vegetables. Organic fertilizers are decomposed by microorganisms to convert organic nitrogen into inorganic nitrogen. It also supplies inorganic nitrogen to vegetables. Absorbed. Therefore, the view that "vegetables with chemical fertilizers are not green food-standard vegetables" is incorrect. Properly control the amount of nitrogen fertilizer In order to ensure that the green food standard vegetables have better yield and economic benefits, based on the application of organic fertilizers, proper application of nitrogen fertilizer is necessary, but the amount must be controlled. In the current situation that green food vegetables are not valued by quality, it is difficult to resolve the contradiction between quality and yield, yield and benefit without applying chemical nitrogen fertilizer. Strictly grasp the topdressing time of nitrogen fertilizer The nitrate content of vegetable crops is constantly changing. Because the nitrogen that enters the vegetable body is further converted into amino acids during the metabolic process to synthesize proteins. According to research, with the application of nitrogen fertilizer, the nitrate content in vegetables tends to decrease gradually. Therefore, for safety reasons, the topdressing time for green food vegetables should be 15-20 days before harvest. In addition, the combined application of nitrogen fertilizer and potassium fertilizer can promote protein synthesis and reduce nitrate content in the body. Disclaimer: Some articles on this website are transferred from the Internet. If you have third party legal rights, please inform this website to deal with them. phone Other Dried Vegetables,Air Dried Egg Dice,Dehydrated Chrysanthemum,Dehydrated Jasmine Tea,dehydrated green onions Jiangsu Tiankang Food Co., Ltd. , https://www.tiankangfood.com