THE PRODUCTIVITY OF MEADOW-CHESTNUT SOILS OF THE NORTH - WESTERN PRECASPIAN REGION ACCORDING TO THE DYNAMICS OF THE ENVIRONMENTAL FACTORS

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Published Oct 4, 2018

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G.N. Gasanov http://orcid.org/0000-0002-6181-5196 T.A. Asvarova http://orcid.org/0000-0002-5285-9250 K.M. Hajiyev http://orcid.org/0000-0003-1150-9593 R.R. Bashirov http://orcid.org/0000-0002-6331-2592 A.S. Abdulayeva http://orcid.org/0000-0001-9056-1909 Z.N. Akhmedova Sh.K. Salikhov http://orcid.org/0000-0001-5531-3045 N.I. Ramazanova http://orcid.org/0000-0001-9525-6292 R.Z. Usmanov A.A. Aytemirov N.R. Magomedov M.R. Musaev

Abstract

The productivity of phytocenoses on the meadow-chestnut soils is theoretically calculated under hydrothermal conditions and practically implanted moisture integral. It is found that high productivity (0.5 t/ha of air-dry weight) of ephemeral synusiae is achieved through the combination of the following environmental factors in April-May; precipitation 80-85 mm, the average temperature is 15-16°C, relative humidity 70-73%, volatility 130-140 mm, coefficient of moisture 0.30, integral hydration period 29.8. In this case, the degree of salinity in soil layer 0-23 cm classified as weak, salinity type is sulfate-chloride. In normal climatic conditions of the year (2013), when precipitation during the vegetation period is distributed relatively evenly, productivity of ephemers and ephemeroids is 2.0 c/ha (centner/hectare) of grasses and thistles – 18.2 c/ha, the coefficient the use of  FAR during the vegetation period of 0.30, the share of the ephemeral synusiae in it – 0.16%.

Article Details

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Vol 61 No 3 (2018)
Section
Статьи

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