Nitrogen fertilizer and tillage intensity affected winter wheat macronutrient uptake and utilization efficiencies
Abstract Application of N fertilizer and no‐tillage (NT) can increase winter wheat (Triticum aestivum L) production through improvements in plant available soil water and nutrient availability. However, long‐term tillage and N management interaction effects on winter wheat nutrient uptake are not we...
| Main Authors: | , , , |
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| Format: | Article |
| Language: | English |
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Wiley
2023-03-01
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| Series: | Agrosystems, Geosciences & Environment |
| Online Access: | https://doi.org/10.1002/agg2.20334 |
| _version_ | 1827976503732731904 |
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| author | Augustine K. Obour Johnathon D. Holman Logan M. Simon Yared Assefa |
| author_facet | Augustine K. Obour Johnathon D. Holman Logan M. Simon Yared Assefa |
| author_sort | Augustine K. Obour |
| collection | DOAJ |
| description | Abstract Application of N fertilizer and no‐tillage (NT) can increase winter wheat (Triticum aestivum L) production through improvements in plant available soil water and nutrient availability. However, long‐term tillage and N management interaction effects on winter wheat nutrient uptake are not well known. The objective of this study was to quantify winter wheat grain yield, macronutrient removal, and utilization responses to N fertilizer application and tillage intensity. The study was conducted in 2019 and 2020 at Hays, Kansas after 45 years of tillage and N fertility experiment. Treatments were a combination of two tillage practices (CT, conventional tillage; NT) and four rates of N (0, 45, 90, and 134 kg ha−1). Results showed a significant tillage and N fertilizer interaction effect on wheat grain yield, nutrient removal (NR) (grain‐N, ‐P, ‐K, ‐Mg; stover‐K, and total P), and nutrient concentration (stover‐K and ‐S). Two different quadratic models fit the N rate‐to‐yield relation for CT and NT with yields of 4.3 and 5.2 Mg ha−1 at agronomic optimal N rates of 119 and 199 kg N ha−1, respectively. This suggests that the N rates were not high enough to predict optimum N rate for NT in this environment. With an average yield of 3.30 Mg ha−1, wheat removed about 113 kg N ha−1, 17 kg P ha−1, 56 kg K ha−1, 7 kg Ca ha−1, 8 kg Mg ha−1, and 8 kg S ha−1, irrespective of tillage practice. Grain yields and NR were greater for CT at smaller N rates (<90 kg N ha−1) and for NT at greater N rates (>90 kg ha−1). Findings of the study suggest that adequate N fertility (>90 kg ha−1) should be maintained to improve grain yield, nutrient uptake, and utilization efficiency in dryland NT wheat production systems. |
| first_indexed | 2024-04-09T20:37:39Z |
| format | Article |
| id | doaj.art-29446acfe00448f6a49cd2bb9fdc332a |
| institution | Directory Open Access Journal |
| issn | 2639-6696 |
| language | English |
| last_indexed | 2024-04-09T20:37:39Z |
| publishDate | 2023-03-01 |
| publisher | Wiley |
| record_format | Article |
| series | Agrosystems, Geosciences & Environment |
| spelling | doaj.art-29446acfe00448f6a49cd2bb9fdc332a2023-03-30T07:15:40ZengWileyAgrosystems, Geosciences & Environment2639-66962023-03-0161n/an/a10.1002/agg2.20334Nitrogen fertilizer and tillage intensity affected winter wheat macronutrient uptake and utilization efficienciesAugustine K. Obour0Johnathon D. Holman1Logan M. Simon2Yared Assefa3Department of Agronomy, Agricultural Research Center Kansas State University Hays KS USADepartment of Agronomy, Southwest Research Extension Center Kansas State University Garden City KS USADepartment of Agronomy, Agricultural Research Center Kansas State University Hays KS USADepartment of Agronomy, Southwest Research Extension Center Kansas State University Garden City KS USAAbstract Application of N fertilizer and no‐tillage (NT) can increase winter wheat (Triticum aestivum L) production through improvements in plant available soil water and nutrient availability. However, long‐term tillage and N management interaction effects on winter wheat nutrient uptake are not well known. The objective of this study was to quantify winter wheat grain yield, macronutrient removal, and utilization responses to N fertilizer application and tillage intensity. The study was conducted in 2019 and 2020 at Hays, Kansas after 45 years of tillage and N fertility experiment. Treatments were a combination of two tillage practices (CT, conventional tillage; NT) and four rates of N (0, 45, 90, and 134 kg ha−1). Results showed a significant tillage and N fertilizer interaction effect on wheat grain yield, nutrient removal (NR) (grain‐N, ‐P, ‐K, ‐Mg; stover‐K, and total P), and nutrient concentration (stover‐K and ‐S). Two different quadratic models fit the N rate‐to‐yield relation for CT and NT with yields of 4.3 and 5.2 Mg ha−1 at agronomic optimal N rates of 119 and 199 kg N ha−1, respectively. This suggests that the N rates were not high enough to predict optimum N rate for NT in this environment. With an average yield of 3.30 Mg ha−1, wheat removed about 113 kg N ha−1, 17 kg P ha−1, 56 kg K ha−1, 7 kg Ca ha−1, 8 kg Mg ha−1, and 8 kg S ha−1, irrespective of tillage practice. Grain yields and NR were greater for CT at smaller N rates (<90 kg N ha−1) and for NT at greater N rates (>90 kg ha−1). Findings of the study suggest that adequate N fertility (>90 kg ha−1) should be maintained to improve grain yield, nutrient uptake, and utilization efficiency in dryland NT wheat production systems.https://doi.org/10.1002/agg2.20334 |
| spellingShingle | Augustine K. Obour Johnathon D. Holman Logan M. Simon Yared Assefa Nitrogen fertilizer and tillage intensity affected winter wheat macronutrient uptake and utilization efficiencies Agrosystems, Geosciences & Environment |
| title | Nitrogen fertilizer and tillage intensity affected winter wheat macronutrient uptake and utilization efficiencies |
| title_full | Nitrogen fertilizer and tillage intensity affected winter wheat macronutrient uptake and utilization efficiencies |
| title_fullStr | Nitrogen fertilizer and tillage intensity affected winter wheat macronutrient uptake and utilization efficiencies |
| title_full_unstemmed | Nitrogen fertilizer and tillage intensity affected winter wheat macronutrient uptake and utilization efficiencies |
| title_short | Nitrogen fertilizer and tillage intensity affected winter wheat macronutrient uptake and utilization efficiencies |
| title_sort | nitrogen fertilizer and tillage intensity affected winter wheat macronutrient uptake and utilization efficiencies |
| url | https://doi.org/10.1002/agg2.20334 |
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