ЭКСТРАКЦИЯ ГУМАТА КАЛИЯ ИЗ МАТЕРИАЛА, ПОЛУЧЕННОГО ПУТЁМ МИКРОБИОЛОГИЧЕСКОЙ ПЕРЕРАБОТКИ КОРОДРЕВЕСНЫХ ОТХОДОВ

The influence of the composition of alkaline solutions, temperature and incubation time on the extraction of potassium humate from the products of biotechnological processing of the material of bark and wood waste from the Krasnokamsk bark dump by isolated microorganisms-destructors of lignocellulosic materials was studied. It has been shown that an effective method for obtaining potassium humate from this substance is a 3-hour extraction with pyrophosphate or potassium hydroxide when it has been shown that the obtained preparations of potassium humate stimulate the germination of tomato seeds. The conducted vegetation experiment with model tomato plants showed high efficiency of the extracted humates as plant growth stimulators. The results of the study can be used to develop a production process for the preparation of potassium humate. In the production process, the extraction temperature can be reduced to 50oC without significantly reducing the yield of the active product. The work was carried out within the framework of the project ISG No. С-26/796, funded by the Ministry of Education and Science of the Perm region.