Yield Predictive Worth of Pre-Flowering and Post-Flowering Indicators of Nitrogen Economy in High Yielding Winter Wheat
Indicators of nitrogen economy in winter wheat during vegetative development are a reliable tool for yield prognosis. This hypothesis was verified in a field experiment, carried out in the 2013/2014, 2014/2015, and 2015/2016 seasons. The field experiment, in a two-factor split-plot design, included...
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| Format: | Article |
| Language: | English |
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MDPI AG
2022-12-01
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| Series: | Agronomy |
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| Online Access: | https://www.mdpi.com/2073-4395/13/1/122 |
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| author | Witold Szczepaniak Witold Grzebisz Jarosław Potarzycki |
| author_facet | Witold Szczepaniak Witold Grzebisz Jarosław Potarzycki |
| author_sort | Witold Szczepaniak |
| collection | DOAJ |
| description | Indicators of nitrogen economy in winter wheat during vegetative development are a reliable tool for yield prognosis. This hypothesis was verified in a field experiment, carried out in the 2013/2014, 2014/2015, and 2015/2016 seasons. The field experiment, in a two-factor split-plot design, included the following systems of wheat protection (CFP): (i) N + micronutrients, (ii) N + fungicides, (iii) N + micronutrients + fungicides; and N rates: 0, 40, 80, 120, 160, 200, 240 kg N ha<sup>−1</sup>. The content and accumulation of N in wheat at the beginning of stem elongation and at heading were used for grain density and yield prediction. In the grain-filling phase, the stem N acted as a buffer, stabilizing yield at a high level. The condition for such action was the stem N equilibrium with the ear N at flowering. The N depletion from the leaves during the grain-filling period significantly depended on the grain density. The post-flowering uptake of N by wheat was affected by the grain density, which was affected by the N reserves in the stem. Yield forecast based on pre-flowering indices of nitrogen economy in cereals affects both agronomic decisions aimed at correcting the nutritional status of plants, and farm economics. |
| first_indexed | 2024-03-09T13:52:06Z |
| format | Article |
| id | doaj.art-6d2ee419541b49af8ff3c94bfc6a2fe2 |
| institution | Directory Open Access Journal |
| issn | 2073-4395 |
| language | English |
| last_indexed | 2024-03-09T13:52:06Z |
| publishDate | 2022-12-01 |
| publisher | MDPI AG |
| record_format | Article |
| series | Agronomy |
| spelling | doaj.art-6d2ee419541b49af8ff3c94bfc6a2fe22023-11-30T20:49:14ZengMDPI AGAgronomy2073-43952022-12-0113112210.3390/agronomy13010122Yield Predictive Worth of Pre-Flowering and Post-Flowering Indicators of Nitrogen Economy in High Yielding Winter WheatWitold Szczepaniak0Witold Grzebisz1Jarosław Potarzycki2Department of Agricultural Chemistry and Environmental Biogeochemistry, Poznan University of Life Sciences, Wojska Polskiego 28, 60-637 Poznan, PolandDepartment of Agricultural Chemistry and Environmental Biogeochemistry, Poznan University of Life Sciences, Wojska Polskiego 28, 60-637 Poznan, PolandDepartment of Agricultural Chemistry and Environmental Biogeochemistry, Poznan University of Life Sciences, Wojska Polskiego 28, 60-637 Poznan, PolandIndicators of nitrogen economy in winter wheat during vegetative development are a reliable tool for yield prognosis. This hypothesis was verified in a field experiment, carried out in the 2013/2014, 2014/2015, and 2015/2016 seasons. The field experiment, in a two-factor split-plot design, included the following systems of wheat protection (CFP): (i) N + micronutrients, (ii) N + fungicides, (iii) N + micronutrients + fungicides; and N rates: 0, 40, 80, 120, 160, 200, 240 kg N ha<sup>−1</sup>. The content and accumulation of N in wheat at the beginning of stem elongation and at heading were used for grain density and yield prediction. In the grain-filling phase, the stem N acted as a buffer, stabilizing yield at a high level. The condition for such action was the stem N equilibrium with the ear N at flowering. The N depletion from the leaves during the grain-filling period significantly depended on the grain density. The post-flowering uptake of N by wheat was affected by the grain density, which was affected by the N reserves in the stem. Yield forecast based on pre-flowering indices of nitrogen economy in cereals affects both agronomic decisions aimed at correcting the nutritional status of plants, and farm economics.https://www.mdpi.com/2073-4395/13/1/122wheat indicative organsnitrogen concentrationnitrogen accumulationgrain-filling periodnitrogen remobilizationyield prediction |
| spellingShingle | Witold Szczepaniak Witold Grzebisz Jarosław Potarzycki Yield Predictive Worth of Pre-Flowering and Post-Flowering Indicators of Nitrogen Economy in High Yielding Winter Wheat Agronomy wheat indicative organs nitrogen concentration nitrogen accumulation grain-filling period nitrogen remobilization yield prediction |
| title | Yield Predictive Worth of Pre-Flowering and Post-Flowering Indicators of Nitrogen Economy in High Yielding Winter Wheat |
| title_full | Yield Predictive Worth of Pre-Flowering and Post-Flowering Indicators of Nitrogen Economy in High Yielding Winter Wheat |
| title_fullStr | Yield Predictive Worth of Pre-Flowering and Post-Flowering Indicators of Nitrogen Economy in High Yielding Winter Wheat |
| title_full_unstemmed | Yield Predictive Worth of Pre-Flowering and Post-Flowering Indicators of Nitrogen Economy in High Yielding Winter Wheat |
| title_short | Yield Predictive Worth of Pre-Flowering and Post-Flowering Indicators of Nitrogen Economy in High Yielding Winter Wheat |
| title_sort | yield predictive worth of pre flowering and post flowering indicators of nitrogen economy in high yielding winter wheat |
| topic | wheat indicative organs nitrogen concentration nitrogen accumulation grain-filling period nitrogen remobilization yield prediction |
| url | https://www.mdpi.com/2073-4395/13/1/122 |
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