Abstract
In the conditions of the forest-steppe of the Middle Volga region (Republic of Mordovia) there was carried out the research on studying the effect of various technologies for the use of mineral fertilizers, with and without taking into account the intra-soil variability of soil fertility indicators in crops of spring barley of the Zazersky 85 variety. The experiment was carried out in 2012 and 2018 in two fields of grain-row crop rotation on leached chernozem (humus in the 0-25 сm layer – 5.3-6.9 %, nitrate and ammonium nitrogen 6.1-16.8 mg/kg of soil, mobile phosphorus 83-182 mg/kg of soil and exchangeable potassium 90-196 mg/kg of soil). The scheme of the experiment: control (without fertilizers); average dose of fertilizers (N 70 P 34 K 26 – in 2012, N 72 P 36 K 25 – in 2018); differentiated dose (N 53-80 P 24-43 K 17-34 in 2012 and N 56-80 P 25-42 K 20-27 in 2018). Fertilizer doses are calculated for the planned barley yield of 3.0 t/ha. The experiment was based on the principle of a split plot, where plots of the 1st order were reserved for variants with fertilizers, and plots of the 2nd order (5 plots in each repetition) were used to determine the variability of intra-soil fertility and fertilizer application. On average, for two fields of crop rotation, the highest barley yield (3.14 t/ha) was obtained in the variant with differentiated use of fertilizers, which was significantly 72 % higher than the control and 13 % higher than the variant with average doses. The application of fertilizers taking into account the heterogeneity of nutrients in the soil provided the smallest range of variation in yield (0.8 t/ha) across the plots of the polygon with an insignificant level of variation coefficient (V = 9.8 %). The use of fertilizers in the cultivation of barley had a statistically significant effect on the increase in the weight of 1000 grains, plant height, productive tillering coefficient and ear length. Differentiated doses of fertilizers compared with the averaged doses led to a noticeable increase in the values of productive bushiness of plants (by 8.3 %) and spike length (by 3.9 %). The technology of applying mineral fertilizers, taking into account the intra-soil variability of soil fertility indicators, was distinguished by the highest level of profitability in the production of spring barley grain (47.6 %) compared to traditional (26.2 %) and fertilizer savings (by 7.5-8.5 %).
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Claims 10
Claim · model-written summary
Differentiated fertilizer use gave the highest barley yield, 72 % higher than the control.
- Taxon
- spring barley
.jpg?width=60)
Hordeum vulgaret0 - Treatment
- differentiated use of fertilizerse1
- Outcome
- barley yielde1
- Direction
- highere1
- Value
- 72 %e1
- Comparator
- controle1
- Setting
- forest-steppe of the Middle Volga regiont0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
.jpg?width=500)
Verbatim
t0“cultivating spring barley in the forest-steppe of the Middle Volga region”
e1“the highest barley yield (3.14 t/ha) was obtained in the variant with differentiated use of fertilizers, which was significantly 72 % higher than the control and 13 % higher than the variant with average doses”
Claim · model-written summary
Differentiated fertilizer use gave barley yield 13 % higher than the average-dose variant.
- Taxon
- spring barleyHordeum vulgaret0
- Treatment
- differentiated use of fertilizerse1
- Outcome
- barley yielde1
- Direction
- highere1
- Value
- 13 %e1
- Comparator
- average dosese1
- Setting
- forest-steppe of the Middle Volga regiont0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
t0“cultivating spring barley in the forest-steppe of the Middle Volga region”
e1“the highest barley yield (3.14 t/ha) was obtained in the variant with differentiated use of fertilizers, which was significantly 72 % higher than the control and 13 % higher than the variant with average doses”
Claim · model-written summary
Fertilizer application accounting for nutrient heterogeneity gave the smallest range of yield variation across plots, 0.8 t/ha.
- Taxon
- spring barleyHordeum vulgaret0
- Treatment
- application of fertilizers taking into account the heterogeneity of nutrients in the soile2
- Outcome
- range of variation in yielde2
- Direction
- smalleste2
- Value
- 0.8 t/hae2
- Setting
- forest-steppe of the Middle Volga regiont0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
t0“cultivating spring barley in the forest-steppe of the Middle Volga region”
e2“The application of fertilizers taking into account the heterogeneity of nutrients in the soil provided the smallest range of variation in yield (0.8 t/ha)”
Claim · model-written summary
The coefficient of variation of yield was 9.8 %, an insignificant level.
- Taxon
- spring barleyHordeum vulgaret0
- Outcome
- variation coefficiente3
- Value
- 9.8 %e3
- Qualifier
- insignificant levele3
- Setting
- forest-steppe of the Middle Volga regiont0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
t0“cultivating spring barley in the forest-steppe of the Middle Volga region”
e3“with an insignificant level of variation coefficient (V = 9.8 %)”
Claim · model-written summary
Fertilizer use significantly increased the weight of 1000 grains, plant height and productive tillering coefficient of barley.
- Taxon
- spring barleyHordeum vulgaret0
- Treatment
- use of fertilizerse4
- Outcome
- weight of 1000 grains, plant height, productive tillering coefficiente4
- Direction
- increasee4
- Setting
- forest-steppe of the Middle Volga regiont0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
t0“cultivating spring barley in the forest-steppe of the Middle Volga region”
e4“The use of fertilizers in the cultivation of barley had a statistically significant effect on the increase in the weight of 1000 grains, plant height, productive tillering coefficient and ear length”
Claim · model-written summary
Fertilizer use significantly increased barley ear length.
- Taxon
- spring barleyHordeum vulgaret0
- Treatment
- use of fertilizerse4
- Outcome
- ear lengthe4
- Direction
- increasee4
- Setting
- forest-steppe of the Middle Volga regiont0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
t0“cultivating spring barley in the forest-steppe of the Middle Volga region”
e4“The use of fertilizers in the cultivation of barley had a statistically significant effect on the increase in the weight of 1000 grains, plant height, productive tillering coefficient and ear length”
Claim · model-written summary
Differentiated fertilizer doses increased productive bushiness of plants by 8.3 % compared with averaged doses.
- Taxon
- spring barleyHordeum vulgaret0
- Treatment
- Differentiated doses of fertilizerse5
- Outcome
- productive bushiness of plantse5
- Direction
- increasee5
- Value
- 8.3 %e5
- Comparator
- averaged dosese5
- Setting
- forest-steppe of the Middle Volga regiont0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
t0“cultivating spring barley in the forest-steppe of the Middle Volga region”
e5“Differentiated doses of fertilizers compared with the averaged doses led to a noticeable increase in the values of productive bushiness of plants (by 8.3 %) and spike length (by 3.9 %)”
Claim · model-written summary
Differentiated fertilizer doses increased spike length by 3.9 % compared with averaged doses.
- Taxon
- spring barleyHordeum vulgaret0
- Treatment
- Differentiated doses of fertilizerse5
- Outcome
- spike lengthe5
- Direction
- increasee5
- Value
- 3.9 %e5
- Comparator
- averaged dosese5
- Setting
- forest-steppe of the Middle Volga regiont0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
t0“cultivating spring barley in the forest-steppe of the Middle Volga region”
e5“Differentiated doses of fertilizers compared with the averaged doses led to a noticeable increase in the values of productive bushiness of plants (by 8.3 %) and spike length (by 3.9 %)”
Claim · model-written summary
The mineral fertilizer technology that accounts for intra-soil variability gave the highest spring barley grain profitability, 47.6 %, against traditional technology (26.2 %).
- Taxon
- spring barleyHordeum vulgaret0
- Treatment
- technology of applying mineral fertilizers, taking into account the intra-soil variability of soil fertility indicatorse6
- Outcome
- profitabilitye6
- Direction
- higheste6
- Value
- 47.6 %e6
- Qualifier
- 26.2 %e6
- Comparator
- traditionale6
- Setting
- forest-steppe of the Middle Volga regiont0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
t0“cultivating spring barley in the forest-steppe of the Middle Volga region”
e6“The technology of applying mineral fertilizers, taking into account the intra-soil variability of soil fertility indicators, was distinguished by the highest level of profitability in the production of spring barley grain (47.6 %) compared to traditional (26.2 %) and fertilizer savings (by 7.5-8.5 %)”
Claim · model-written summary
The mineral fertilizer technology that accounts for intra-soil variability gave the highest spring barley grain profitability, 7.5-8.5 % above fertilizer savings.
- Taxon
- spring barleyHordeum vulgaret0
- Treatment
- technology of applying mineral fertilizers, taking into account the intra-soil variability of soil fertility indicatorse6
- Outcome
- profitabilitye6
- Direction
- higheste6
- Value
- 7.5-8.5 %e6
- Comparator
- fertilizer savingse6
- Setting
- forest-steppe of the Middle Volga regiont0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
t0“cultivating spring barley in the forest-steppe of the Middle Volga region”
e6“The technology of applying mineral fertilizers, taking into account the intra-soil variability of soil fertility indicators, was distinguished by the highest level of profitability in the production of spring barley grain (47.6 %) compared to traditional (26.2 %) and fertilizer savings (by 7.5-8.5 %)”
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