Abstract
Goal. To determine the influence of agrophysical parameters of arable soil layer on the productivity of spring barley varieties of different types of intensity under conditions of application of mineral fertilizers on the example of typical deep low humus deep-boiling heavy loam on loess-like loam chernozem of the Left Bank part of Forest-steppe of Ukraine. Methods. Laboratory-analytical, laboratory-model, field (small-area), mathematical-statistical, computational. Results. The improvement of conditions of germination, development, and increase of biological mass of cultivars of the studied culture at soil density and humidity at the level of 1.2 g/cm3 and 80% of the lowest moisture content (LMC) in comparison with compacted soil is established. The optimal values of structure density and soil moisture are determined, which ensure the maximum biomass of intensive variety of spring barley Vzirets: 1.2 g/cm3 and 100% of LMC (at the application of 90 kg/ha of the active substance (a.s.) of nitrogen, phosphorus and potassium fertilizers); semi-intensive variety Zdobutok: 1.2 g/cm3 and 80% of LMC (at the application of 45 kg/ha of nitrogen and phosphorus fertilizers, and 90 kg/ha of potassium fertilizers). In the course of field research, a decrease in the use of nutrients from the soil was revealed: nitrogen by 4.0% — for intensive and 2.0% — for semi-intensive varieties; phosphorus — by 3.4 and 4.7%; potassium — by 10.7 and 6.3%, respectively, at a high (1.4 g/cm3) level of compaction compared to its low (1.0 g/cm3) level. Under the same conditions, a decrease in the yield of spring barley grain was revealed: intensive variety — by 25, semi-intensive — by 22%. Conclusions. According to the results of experimental studies, the complex influence of soil moisture and compaction levels was revealed and their optimal parameters were established for growing intensive and semi-intensive varieties of spring barley, which achieved their maximum yield in soil fertilization.
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Claims 11
Claim · model-written summary
At 1.2 g/cm3 and 80% LMC, barley germination, development and biomass improved relative to compacted soil.
- Taxon
- spring barley
.jpg?width=60)
Hordeum vulgaret0 - Treatment
- 1.2 g/cm3 and 80% of the lowest moisture content (LMC)e0
- Outcome
- germination, development, and increase of biological masse0
- Direction
- improvemente0
- Comparator
- compacted soile0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
.jpg?width=500)
Verbatim
e0“The improvement of conditions of germination, development, and increase of biological mass of cultivars of the studied culture at soil density and humidity at the level of 1.2 g/cm3 and 80% of the lowest moisture content (LMC) in comparison with compacted soil is established.”
t0“spring barley varieties”
Claim · model-written summary
Vzirets attained maximum biomass at 1.2 g/cm3 and 100% LMC with 90 kg/ha NPK fertilizer.
- Taxon
- spring barleyHordeum vulgaree0
- Material
- Vziretse0
- Treatment
- 90 kg/ha of the active substance (a.s.) of nitrogen, phosphorus and potassium fertilizerse0
- Outcome
- biomasse0
- Direction
- maximume0
- Qualifier
- 1.2 g/cm3 and 100% of LMCe0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“maximum biomass of intensive variety of spring barley Vzirets: 1.2 g/cm3 and 100% of LMC (at the application of 90 kg/ha of the active substance (a.s.) of nitrogen, phosphorus and potassium fertilizers)”
Claim · model-written summary
Zdobutok attained maximum biomass at 1.2 g/cm3 and 80% LMC with the stated NP and K rates.
- Taxon
- spring barleyHordeum vulgaret0
- Material
- Zdobutoke0
- Treatment
- 45 kg/ha of nitrogen and phosphorus fertilizers, and 90 kg/ha of potassium fertilizerse0
- Outcome
- maximum biomasse1
- Direction
- maximume1
- Qualifier
- 1.2 g/cm3 and 80% of LMCe0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“semi-intensive variety Zdobutok: 1.2 g/cm3 and 80% of LMC (at the application of 45 kg/ha of nitrogen and phosphorus fertilizers, and 90 kg/ha of potassium fertilizers)”
t0“spring barley varieties”
e1“The optimal values of structure density and soil moisture are determined, which ensure the maximum biomass of intensive variety of spring barley Vzirets: 1.2 g/cm3 and 100% of LMC (at the application of 90 kg/ha of the active substance (a.s.) of nitrogen, phosphorus and potassium fertilizers); semi-intensive variety Zdobutok: 1.2 g/cm3 and 80% of LMC (at the application of 45 kg/ha of nitrogen and phosphorus fertilizers, and 90 kg/ha of potassium fertilizers).”
Claim · model-written summary
High compaction reduced soil nitrogen use by 4.0% in intensive barley.
- Taxon
- spring barleyHordeum vulgaret0
- Material
- intensivee0
- Treatment
- high (1.4 g/cm3) level of compactione1
- Outcome
- use of nutrients from the soile0
- Direction
- decreasee0
- Value
- 4.0%e0
- Comparator
- low (1.0 g/cm3) levele1
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“a decrease in the use of nutrients from the soil was revealed: nitrogen by 4.0% — for intensive”
t0“spring barley varieties”
e1“In the course of field research, a decrease in the use of nutrients from the soil was revealed: nitrogen by 4.0% — for intensive and 2.0% — for semi-intensive varieties; phosphorus — by 3.4 and 4.7%; potassium — by 10.7 and 6.3%, respectively, at a high (1.4 g/cm3) level of compaction compared to its low (1.0 g/cm3) level. Under the same conditions, a decrease in the yield of spring barley grain was revealed: intensive variety — by 25, semi-intensive — by 22%.”
Claim · model-written summary
High compaction reduced soil nitrogen use by 2.0% in semi-intensive barley.
- Taxon
- spring barleyHordeum vulgaret0
- Material
- semi-intensive varietiese0
- Treatment
- high (1.4 g/cm3) level of compactione1
- Outcome
- nitrogene0
- Direction
- decreasee1
- Value
- 2.0%e0
- Comparator
- low (1.0 g/cm3) levele1
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“nitrogen by 4.0% — for intensive and 2.0% — for semi-intensive varieties”
t0“spring barley varieties”
e1“In the course of field research, a decrease in the use of nutrients from the soil was revealed: nitrogen by 4.0% — for intensive and 2.0% — for semi-intensive varieties; phosphorus — by 3.4 and 4.7%; potassium — by 10.7 and 6.3%, respectively, at a high (1.4 g/cm3) level of compaction compared to its low (1.0 g/cm3) level. Under the same conditions, a decrease in the yield of spring barley grain was revealed: intensive variety — by 25, semi-intensive — by 22%.”
Claim · model-written summary
High compaction reduced phosphorus use by 3.4% in intensive barley.
- Taxon
- spring barleyHordeum vulgaret0
- Material
- intensivee1
- Treatment
- high (1.4 g/cm3) level of compactione1
- Outcome
- phosphoruse0
- Direction
- decreasee1
- Value
- 3.4e0
- Comparator
- low (1.0 g/cm3) levele1
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“phosphorus — by 3.4 and 4.7%”
t0“spring barley varieties”
e1“In the course of field research, a decrease in the use of nutrients from the soil was revealed: nitrogen by 4.0% — for intensive and 2.0% — for semi-intensive varieties; phosphorus — by 3.4 and 4.7%; potassium — by 10.7 and 6.3%, respectively, at a high (1.4 g/cm3) level of compaction compared to its low (1.0 g/cm3) level. Under the same conditions, a decrease in the yield of spring barley grain was revealed: intensive variety — by 25, semi-intensive — by 22%.”
Claim · model-written summary
High compaction reduced phosphorus use by 4.7% in semi-intensive barley.
- Taxon
- spring barleyHordeum vulgaret0
- Material
- semi-intensivee1
- Treatment
- high (1.4 g/cm3) level of compactione1
- Outcome
- phosphoruse0
- Direction
- decreasee1
- Value
- 4.7e0
- Comparator
- low (1.0 g/cm3) levele1
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“phosphorus — by 3.4 and 4.7%”
t0“spring barley varieties”
e1“In the course of field research, a decrease in the use of nutrients from the soil was revealed: nitrogen by 4.0% — for intensive and 2.0% — for semi-intensive varieties; phosphorus — by 3.4 and 4.7%; potassium — by 10.7 and 6.3%, respectively, at a high (1.4 g/cm3) level of compaction compared to its low (1.0 g/cm3) level. Under the same conditions, a decrease in the yield of spring barley grain was revealed: intensive variety — by 25, semi-intensive — by 22%.”
Claim · model-written summary
High compaction reduced potassium use by 10.7% in intensive barley.
- Taxon
- spring barleyHordeum vulgaret0
- Material
- intensivee1
- Treatment
- high (1.4 g/cm3) level of compactione1
- Outcome
- potassiume0
- Direction
- decreasee1
- Value
- 10.7e0
- Comparator
- low (1.0 g/cm3) levele1
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“potassium — by 10.7 and 6.3%, respectively”
t0“spring barley varieties”
e1“In the course of field research, a decrease in the use of nutrients from the soil was revealed: nitrogen by 4.0% — for intensive and 2.0% — for semi-intensive varieties; phosphorus — by 3.4 and 4.7%; potassium — by 10.7 and 6.3%, respectively, at a high (1.4 g/cm3) level of compaction compared to its low (1.0 g/cm3) level. Under the same conditions, a decrease in the yield of spring barley grain was revealed: intensive variety — by 25, semi-intensive — by 22%.”
Claim · model-written summary
High compaction reduced potassium use by 6.3% in semi-intensive barley.
- Taxon
- spring barleyHordeum vulgaret0
- Material
- semi-intensivee1
- Treatment
- high (1.4 g/cm3) level of compactione1
- Outcome
- potassiume0
- Direction
- decreasee1
- Value
- 6.3%e0
- Comparator
- low (1.0 g/cm3) levele1
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“potassium — by 10.7 and 6.3%, respectively”
t0“spring barley varieties”
e1“In the course of field research, a decrease in the use of nutrients from the soil was revealed: nitrogen by 4.0% — for intensive and 2.0% — for semi-intensive varieties; phosphorus — by 3.4 and 4.7%; potassium — by 10.7 and 6.3%, respectively, at a high (1.4 g/cm3) level of compaction compared to its low (1.0 g/cm3) level. Under the same conditions, a decrease in the yield of spring barley grain was revealed: intensive variety — by 25, semi-intensive — by 22%.”
Claim · model-written summary
High compaction lowered intensive barley grain yield by 25%.
- Taxon
- spring barleyHordeum vulgaree0
- Material
- intensive varietye0
- Treatment
- high (1.4 g/cm3) level of compactione1
- Outcome
- yield of spring barley graine0
- Direction
- decreasee0
- Value
- 25e0
- Comparator
- low (1.0 g/cm3) levele1
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“a decrease in the yield of spring barley grain was revealed: intensive variety — by 25”
t0“spring barley varieties”
e1“In the course of field research, a decrease in the use of nutrients from the soil was revealed: nitrogen by 4.0% — for intensive and 2.0% — for semi-intensive varieties; phosphorus — by 3.4 and 4.7%; potassium — by 10.7 and 6.3%, respectively, at a high (1.4 g/cm3) level of compaction compared to its low (1.0 g/cm3) level. Under the same conditions, a decrease in the yield of spring barley grain was revealed: intensive variety — by 25, semi-intensive — by 22%.”
Claim · model-written summary
High compaction lowered semi-intensive barley grain yield by 22%.
- Taxon
- spring barleyHordeum vulgaret0
- Material
- semi-intensivee0
- Treatment
- high (1.4 g/cm3) level of compactione1
- Outcome
- yield of spring barley graine1
- Direction
- decreasee1
- Value
- 22%e0
- Comparator
- low (1.0 g/cm3) levele1
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“semi-intensive — by 22%”
t0“spring barley varieties”
e1“In the course of field research, a decrease in the use of nutrients from the soil was revealed: nitrogen by 4.0% — for intensive and 2.0% — for semi-intensive varieties; phosphorus — by 3.4 and 4.7%; potassium — by 10.7 and 6.3%, respectively, at a high (1.4 g/cm3) level of compaction compared to its low (1.0 g/cm3) level. Under the same conditions, a decrease in the yield of spring barley grain was revealed: intensive variety — by 25, semi-intensive — by 22%.”
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