Do not measure soil fertilization no one can not

At present, formula fertilization by soil testing is only a technical topic. The soil testing and fertilizer application technology in China has reached the international level and is not a problem. The most annoying thing is that no matter how good the technology has been taught, it is worse

Shan Rubber Group tightens corporate procurement

Since the beginning of this year, Shanxi Synthetic Rubber Group Co., Ltd. has started from the procurement of raw materials, gradually improved and refined the procurement and management of raw materials, and benefited from it. At the end of February, the company carried out the tender for the