Where can I make an analysis of straw for mushroom blocks
The laboratories engaged in agrochemical soil research and plant chemical composition research correspond to various agro- and phytolabs usually run by large agricultural holdings, agricultural research centers and universities as well as independent research facilities. Most of them accept samples sent by mail or delivery services.
During the nitrogen content calculation according to Kjeldahl method, the sample humidity is also measured – do not forget to remind that you need this figure as well. Straw and sunflower husk with moisture above 16% must be purchased with caution, because with this humidity, reproduction of pathogenic microorganisms (molds and bacteria) start to occur.