Abstract
The aim of the research was to study water-physical properties of chestnut soils under different tillage practices when cultivating corn (Povolzhsky 89 MV hybrid) under irrigated conditions in the Lower Volga region. Therefore, the following characteristics of the soil were studied - soil density, soil moisture, field capacity, maximal hygroscopic moisture, wilting point and porosity. The results revealed that after chisel loosening, a qualitative improvement of soil water-physical properties was observed in comparison with the control variant - moldboard plowing. To describe the dynamics of changes in soil density by layers and tillage variants, a regression of the 2nd order was proposed, and coefficients of the equation were calculated. In order to maintain the specified irrigation regime during the observation periods, 7 to 9 vegetative irrigations with application rate from 2250 to 2750 m3ha-1 were carried out in the variants with moldboard plowing, 7 to 8 irrigations with application rate from 2200 to 2600 m3ha-1 in the variants with chisel loosening, and 6 to 7 irrigations with application rates from 2100 to 2500 m3ha-1 in the variants with chisel moldboard plowing. The yield of corn in the variant with chisel moldboard plowing averaged 8.75 tha-1 during the research period, which is 18 % higher than in the control variant. Moreover, the cost of irrigation water for producing one ton of grain decreased by almost 20 %, and the coefficient of water consumption decreased by 17 %.
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Claims 4
Claim · model-written summary
Chisel loosening improved soil water-physical properties over moldboard plowing.
- Taxon
- corn
Zea mays subsp. mayst0 - Treatment
- chisel looseninge0
- Outcome
- soil water-physical propertiese0
- Direction
- improvemente0
- Comparator
- moldboard plowinge0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“after chisel loosening, a qualitative improvement of soil water-physical properties was observed in comparison with the control variant - moldboard plowing”
t0“cultivating corn (Povolzhsky 89 MV hybrid)”
Claim · model-written summary
Chisel moldboard plowing yielded an average 8.75 tha-1 of corn, 18 % above control.
- Taxon
- cornZea mays subsp. mayse0
- Treatment
- chisel moldboard plowinge0
- Outcome
- yield of corne0
- Direction
- highere0
- Value
- 8.75 tha-1e0
- Qualifier
- 18 %e0
- Comparator
- control variante0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“The yield of corn in the variant with chisel moldboard plowing averaged 8.75 tha-1 during the research period, which is 18 % higher than in the control variant.”
Claim · model-written summary
Irrigation water cost per ton of grain decreased by almost 20 %.
- Taxon
- cornZea mays subsp. mayst0
- Outcome
- cost of irrigation water for producing one ton of graine0
- Direction
- decreasede0
- Value
- almost 20 %e0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“the cost of irrigation water for producing one ton of grain decreased by almost 20 %”
t0“cultivating corn (Povolzhsky 89 MV hybrid)”
Claim · model-written summary
The water consumption coefficient decreased by 17 %.
- Taxon
- cornZea mays subsp. mayst0
- Outcome
- coefficient of water consumptione0
- Direction
- decreasede0
- Value
- 17 %e0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“the coefficient of water consumption decreased by 17 %”
t0“cultivating corn (Povolzhsky 89 MV hybrid)”
The same questions in other papers
tillage · yield · Zea mays (maize)Positive and negative results
811 papers in the same direction as this paper · 230 in the opposite direction · 57 reporting no difference from an alternative
- negative
- no effect
- negative
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See all 1,099 papers →Claims are grouped by organism, treatment and what was measured or targeted. A paper counts as positive when any of its claims in the group is positive.