What is good for corn base fertilizer in Baoding area?

It is recommended that you use Zhuyoubao SOD microbial fertilizer, which is jointly developed and produced by Eco-environmental Research Center of Chinese Academy of Sciences and Zhongke Vitality (Beijing) Biotechnology Co., Ltd., and the fermentation strain is Rhodotorula globosa, using two invention patent technologies authorized by the state (China Z L2005 10 13262.7) and (China ZL 2004655). Transformation project of agricultural scientific and technological achievements of Ministry of Science and Technology in 2009. You can try