Photosynthetic activity of spring barley crops in the zone of forest belts influence in the Volgograd region

Abstract

Protective afforestation has a significant impact on the morphometric parameters of spring barley. It increases the number of grains per spikelet and the number of spikelets per spike. As the grain crops approach the field-protective forest belt, the length of the stem and the mass of 1000 grains increase. In fact, the yield increase at a distance from the protective belt is 3.0 c / ha. The influence of forest shelter belts is traced throughout the growing season on the development of Medicum 139 barley and is reflected in such indicators as leaf area, photosynthetic activity of crops, the amount of dry phytomass and net productivity of photosynthesis. The results of the study indicate the important role of forest belts. The area of application of the developments is the zone of soils of the Lower Volga region.