"You see, my fertilizer is white and long hair. Will there be any problems?" During the visit to the countryside, a farmer expressed his concern to the author. The fertilizer he uses is a microbial fertilizer that, after storage for a period of time, produces white plaque on the surface. In response to this problem, the author specifically consulted Professor Li Shidong, a researcher in the biological control laboratory of the Institute of Plant Protection of the Chinese Academy of Agricultural Sciences. According to him, the long hair of the fungus fertilizer is due to the fact that the microorganisms in the fungus fertilizer are proliferated in a suitable environment and there is no problem with the fertilizer. On the contrary, it shows that the microorganism has high activity, good resistance to stress, and can withstand adverse conditions. Survive.

As a distributor and a farmer, how to pick a good fertilizer? Prof. Li took out two kinds of fungus fertilizers, long hairs and no long hairs, and gave the authors a careful comparison and answered: “Because the resistance, content, and activity of strains in bacterial fertilizers are not well considered, therefore, Ordinary users can use some simple methods to initially determine the quality of organic fertilizers and their quality.The first is to see if the fertilizer is stored or used in the ground for a short time, it will not grow hair; Fermented organic matter should be aroma, not malodorous."

Professor Li also said that one of the key indicators for evaluating the quality of bacterial fertilizers is resistance, which is the viability of strains in adverse environments. At present, in the research and development strength of fungicide, China Agricultural University, China Academy of Agricultural Sciences, Nanjing Agricultural University and other units have conducted relatively early research and are relatively strong. Most of the fungicide companies are cooperating with them. In view of the high R&D costs of bacterial fertilizers, the screening and domestication of strains requires a lot of time and manpower. It is recommended that dealers choose a relatively strong scientific research enterprise and cooperate with regular fertiliser companies.

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