THE PRODUCTIVITY OF MEADOW-CHESTNUT SOILS OF THE NORTH - WESTERN PRECASPIAN REGION ACCORDING TO THE DYNAMICS OF THE ENVIRONMENTAL FACTORS
Rubrics: AGRICULTURAL ECONOMICS AND POLICIES
Authors:
1.
PIBR DSC RAS
2.
PIBR DSC RAS
3.
PIBR DSC RAS
4.
PIBR DSC RAS
5.
PIBR DSC RAS
6.
PIBR DSC RAS
7.
PIBR DSC RAS
8.
PIBR DSC RAS
9.
PIBR DSC RAS
10.
Dagestan state University
11.
Federal state budgetary scientific institution Kisriev Dagestan research institute of agriculture
12.
FSBEINE Dagestan SAU
Type:
Article
eLocation:
Status:
Published
Received:
06.09.2018
Accepted:
15.09.2018
Published:
25.09.2018
Language:
Russian
Keywords:
evaporation, hydrothermal conditions, integral moisture in the soil, the integral of aridity, meadow -chestnut soil, sulphates, chlorides, degree of salinity, salinity type, productivity of phytocenosis, ephemers, halophytes, species composition of phytocenoses, coefficient the use of FAR.
Abstract (English):
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%.
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%.
Keywords:
evaporation, hydrothermal conditions, integral moisture in the soil, the integral of aridity, meadow -chestnut soil, sulphates, chlorides, degree of salinity, salinity type, productivity of phytocenosis, ephemers, halophytes, species composition of phytocenoses, coefficient the use of FAR.
evaporation, hydrothermal conditions, integral moisture in the soil, the integral of aridity, meadow -chestnut soil, sulphates, chlorides, degree of salinity, salinity type, productivity of phytocenosis, ephemers, halophytes, species composition of phytocenoses, coefficient the use of FAR.
