Method for the efficiency improving of the soil moisture meter

The monitoring method for the botanical garden greenhouses soil moisture has been proposed, that are specific to the botanical garden greenhouses (black earth with loose masonry grains). The implementation of this method has improved the soil moisture analysis efficiency by 2-4 times in comparison with existing analogues. In order to implement the proposed method the model sample of the meter has been designed and its basic metrological characteristics have been determined: the main absolute error - no more than ±1.4 %; the additional absolute error - no more than ±3 %; the total absolute error - no more than ±5 % in the working range of the moisture from 30 to 90 %. Established metrological characteristics of the developed meter prototype satisfy regulatory requirements. The theoretical and practical results of the researches give an effective set of measuring tools in the industrial botany and plant breeding.