Year 2016, Volume 1, Issue 1

Year : 2016
Volume : 1
Issue : 1
   
Authors : Iurii N. ZUBAREV, Lubov V. FALALEEVA, Matvei A. NECHUNAEV, Oksana V. FOTINA
Title : INFLUENCE OF TILLAGE TECHNIQUES FOR OLD-AGE GALEGA ORIENTALIS GRASS STAND ON AGRO-PHYSICAL AND MICROBIOLOGICAL INDICATORS OF SOIL IN MIDDLE PREDURALIE (RUSSIA)
Abstract : The paper presents the results of investigations conducted in 2013 on the experimental and training field of the Perm State Agricultural Academy with the aim to reveal the influence of rejuvenation agro-techniques for perennial grass stands on thickening processes in sod-podzolic soils of Middle Preduralie (Russia). The authors consider dependence of grass stand thinning on different tillage techniques, give data on calculating illumination, light brightness and air temperature in ground surface layer. As investigation object was used partly thinned 13 year old galega orientalis grass stand which is considered to be inapplicable for large scale production. Conducted investigations revealed the dynamics of root system recovery of old-age galega orientalis grass stands for subsequent involvement of degraded grass stands into production with sustainable green mass yield and to produce seeds. Under influence of different rejuvenation techniques the illumination of grass stand changed and as a result growth conditions altered. That leads to alteration in agro-physical and agro-biological factors that favor yield formation. Implemented techniques improved illumination and permeability of sun radiation to the soil surface that increases soil temperature and favorably influences the symbiosis of legumes with resistant microorganisms and root system growth. Root system entirely covers arable layer structuring it, increases the area for nutrition as well as decreases heavy clay soils overcrust creating optimal conditions for growth of nitrogen fixing microorganisms and development of perennial legume grasses. This technology is energy saving and leads to cost reduction and increase of profitability.
For citation : Zubarev, I.N., Falaleeva, L. V., Nechunaev, M. A., Fotina, O. V. (2016). Influence of tillage techniques for old-age Galega orientalis grass stand on agro-physical and microbiological indicators of soil in middle Preduralie (Russia). AGROFOR International Journal, Volume 1. Issue No. 1. pp. 167-171. DOI:10.7251/AGRENG1601167Z
Keywords : old-age grass stands, galega orientalis, rejuvenation, illumination, soil temperature
   
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