Abstract
The article presents the results of the studies concerning the influence of irrigation methods on agrophysical properties and productivity of irrigated medium loamy dark chestnut soil of dry steppe on the left bank of the Volga river. It is proved that the use of surface irrigation by strip flooding leads to the most unfavorable changes in the agrophysical state of the upper layers of the studied soil difference in comparison with the use of surface irrigation along furrows and sprinkling via wide-grip sprinklers. With strip irrigation the total porosity of the arable and subsurface soil horizons decreases to the greatest extent in comparison with furrows and sprinkling, the proportion of the most agronomically valuable meso-aggregates in the soil structure decreases, while the proportion of small silty micro-aggregates and large macro-aggregates increases to the maximum. All this determines the lowest productivity of irrigated dark chestnut soil after irrigation in strips, as compared to sprinkling and furrow irrigation (spring wheat yield decrease makes 0.55 t/ha and 0.77 t/ha, respectively).
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Claims 6
Claim · model-written summary
Strip flooding caused the most unfavorable soil physical changes relative to furrows and sprinkling.
- Taxon
- spring wheat
Triticum aestivume1 - Treatment
- surface irrigation by strip floodinge0
- Outcome
- agrophysical state of the upper layerse0
- Direction
- most unfavorable changese0
- Comparator
- surface irrigation along furrows and sprinklinge0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“use of surface irrigation by strip flooding leads to the most unfavorable changes in the agrophysical state of the upper layers of the studied soil difference in comparison with the use of surface irrigation along furrows and sprinkling”
e1“spring wheat yield”
Claim · model-written summary
Strip irrigation caused the greatest decline in soil porosity versus furrows and sprinkling.
- Taxon
- spring wheatTriticum aestivume1
- Treatment
- strip irrigatione0
- Outcome
- total porosity of the arable and subsurface soil horizonse0
- Direction
- decreasese0
- Comparator
- furrows and sprinklinge0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“With strip irrigation the total porosity of the arable and subsurface soil horizons decreases to the greatest extent in comparison with furrows and sprinkling”
e1“spring wheat yield”
Claim · model-written summary
Strip irrigation decreased meso-aggregate proportion.
- Taxon
- spring wheatTriticum aestivume1
- Treatment
- strip irrigatione0
- Outcome
- proportion of the most agronomically valuable meso-aggregatese0
- Direction
- decreasese0
- Comparator
- furrows and sprinklinge0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“With strip irrigation the total porosity of the arable and subsurface soil horizons decreases to the greatest extent in comparison with furrows and sprinkling, the proportion of the most agronomically valuable meso-aggregates in the soil structure decreases”
e1“spring wheat yield”
Claim · model-written summary
Strip irrigation increased small silty micro-aggregates and large macro-aggregates to the maximum.
- Taxon
- spring wheatTriticum aestivume1
- Treatment
- strip irrigatione0
- Outcome
- proportion of small silty micro-aggregates and large macro-aggregatese0
- Direction
- increasese0
- Comparator
- furrows and sprinklinge0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“With strip irrigation the total porosity of the arable and subsurface soil horizons decreases to the greatest extent in comparison with furrows and sprinkling, the proportion of the most agronomically valuable meso-aggregates in the soil structure decreases, while the proportion of small silty micro-aggregates and large macro-aggregates increases to the maximum”
e1“spring wheat yield”
Claim · model-written summary
Spring wheat yield under strip irrigation was 0.55 t/ha below sprinkling.
- Taxon
- spring wheatTriticum aestivume0
- Treatment
- irrigation in stripse2
- Outcome
- spring wheat yielde0
- Direction
- decreasee0
- Value
- 0.55 t/hae0
- Comparator
- sprinklinge1
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“spring wheat yield decrease makes 0.55 t/ha and 0.77 t/ha, respectively”
e1“as compared to sprinkling and furrow irrigation”
e2“after irrigation in strips”
Claim · model-written summary
Spring wheat yield under strip irrigation was 0.77 t/ha below furrow irrigation.
- Taxon
- spring wheatTriticum aestivume0
- Treatment
- irrigation in stripse2
- Outcome
- spring wheat yielde0
- Direction
- decreasee0
- Value
- 0.77 t/hae0
- Comparator
- furrow irrigatione1
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“spring wheat yield decrease makes 0.55 t/ha and 0.77 t/ha, respectively”
e1“as compared to sprinkling and furrow irrigation”
e2“after irrigation in strips”
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