Assessment of the effect of humates produced by “Shubarkol Komir” JSC on germination of vegetable seeds

Abstract

Humic preparations are valuable sources of humic acids, which increase soil fertility and have growthregulating activity on agricultural crops. Application of new humic preparations from local weathered coals allows providing agricultural producers with domestic preparations. To identify the optimal doses of application, we conducted a series of experiments on germination of vegetable seeds to increase their germination. The results of the study showed that humic preparations in different concentrations may not have the same activity on the seeds of plants of different species. The best germination rates are as follows: for white cabbage seeds after soaking in a solution of potassium humate at a concentration of 0.005 %, for eggplant seeds — a mixture of potassium and sodium humate at a concentration of 0.5 %, for tomato seeds — potassium humate 0.005 %, for sweet pepper seeds — a mixture of potassium and sodium humate 0.005 %, for cucumber seeds — a mixture of potassium and sodium humate 0.01 %. The results can be used for agricultural and greenhouse applications.