Determination of Plant Biomass based on Energy Indicators of The Arid Region

¹ Russian State Agrarian University - Moscow Timiryazev Agricultural Academy, Moscow, the Russian Federation
² The Kazakh Scientific Research Institute of Water Economy, Taraz, Republic of Kazakhstan

^* Corresponding author: ubezborodov@rgau-msha.ru

Abstract

The aim of the research is to find out the energetic efficiency of the applied adaptive landscape agricultural system under the conditions of the arid zone in Kazakhstan. During the field studies at the experimental site in Zhambyl region of the Republic of Kazakhstan the calculation of corn biomass was carried out. The existing technology for determining the biomass values requires a lot of manual labor and time. Therefore, relied on the analysis of long-term data obtained by domestic and foreign scientists, it was concluded that biomass accumulation is closely related to plant height. The results of biomass calculations of corn grown for grain demonstrate that biomass varies within the range of 542-634 c/ha, which corresponds to the index of PAR utilization in the diapason of 32-37%. So, in the field experiment under the conditions of arid zone the dry biomass can amount to 96.6-110.4 c/ha. The proposed methodology allows improving the agricultural system and intensifying agriculture, taking into consideration the rational use of energy resources, which leads to the changes in crop placement structure depending on the solar radiation coefficient (К_R).