The early prognosis of tuber yield based on nitrogen status in potato tops
The pattern of nitrogen net change (ΔN) in potato tops during the period extending from BBCH 33 to BBCH 40 is crucial for tuber yield (TY). This hypothesis was verified based on data from field experiments (2006-2008) with sequentially added nutrients (0, NP, NPK, NPKS, NPKSMg) to potato. The water...
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| Format: | Article |
| Language: | English |
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Czech Academy of Agricultural Sciences
2018-11-01
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| Series: | Plant, Soil and Environment |
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| Online Access: | https://pse.agriculturejournals.cz/artkey/pse-201811-0004_the-early-prognosis-of-tuber-yield-based-on-nitrogen-status-in-potato-tops.php |
| _version_ | 1797898133397569536 |
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| author | Witold GRZEBISZ Jarosław POTARZYCKI Maria BIBER |
| author_facet | Witold GRZEBISZ Jarosław POTARZYCKI Maria BIBER |
| author_sort | Witold GRZEBISZ |
| collection | DOAJ |
| description | The pattern of nitrogen net change (ΔN) in potato tops during the period extending from BBCH 33 to BBCH 40 is crucial for tuber yield (TY). This hypothesis was verified based on data from field experiments (2006-2008) with sequentially added nutrients (0, NP, NPK, NPKS, NPKSMg) to potato. The water shortage in June/July 2006 and in June 2008 significantly affected N content, and in turn TY. The TY was reduced by 38% in 2006 and by 23% in 2008, as compared to 2007 (53.7 t/ha). The N content in potato tops at BBCH 40 of 2.5% indicated the lowest TY, whereas 4.3% the maximum TY. The ΔN of +0.4% within the period from BBCH 33 to BBCH 40 determined the optimal range of the N content for the maximum TY (3.9-4.3%). The ΔN trend depended on the change of phosphorus and potassium contents. The key reason of N inefficiency was the shortage of potassium (K), resulting in its negligible change within this period. The pattern of zinc content at BBCH 40 reflected fairly well disturbances in N as well as K supply to potato. A good supply of K and Zn to potato can improve N management just before tuber initiation. |
| first_indexed | 2024-04-10T08:08:26Z |
| format | Article |
| id | doaj.art-570ce745acab422fa2fc24f9048fce22 |
| institution | Directory Open Access Journal |
| issn | 1214-1178 1805-9368 |
| language | English |
| last_indexed | 2024-04-10T08:08:26Z |
| publishDate | 2018-11-01 |
| publisher | Czech Academy of Agricultural Sciences |
| record_format | Article |
| series | Plant, Soil and Environment |
| spelling | doaj.art-570ce745acab422fa2fc24f9048fce222023-02-23T03:46:39ZengCzech Academy of Agricultural SciencesPlant, Soil and Environment1214-11781805-93682018-11-01641153954510.17221/388/2018-PSEpse-201811-0004The early prognosis of tuber yield based on nitrogen status in potato topsWitold GRZEBISZJarosław POTARZYCKI0Maria BIBER1Department of Agricultural Chemistry and Environmental Biogeochemistry, University of Life Sciences, Poznan, PolandDepartment of Agricultural Chemistry and Environmental Biogeochemistry, University of Life Sciences, Poznan, PolandThe pattern of nitrogen net change (ΔN) in potato tops during the period extending from BBCH 33 to BBCH 40 is crucial for tuber yield (TY). This hypothesis was verified based on data from field experiments (2006-2008) with sequentially added nutrients (0, NP, NPK, NPKS, NPKSMg) to potato. The water shortage in June/July 2006 and in June 2008 significantly affected N content, and in turn TY. The TY was reduced by 38% in 2006 and by 23% in 2008, as compared to 2007 (53.7 t/ha). The N content in potato tops at BBCH 40 of 2.5% indicated the lowest TY, whereas 4.3% the maximum TY. The ΔN of +0.4% within the period from BBCH 33 to BBCH 40 determined the optimal range of the N content for the maximum TY (3.9-4.3%). The ΔN trend depended on the change of phosphorus and potassium contents. The key reason of N inefficiency was the shortage of potassium (K), resulting in its negligible change within this period. The pattern of zinc content at BBCH 40 reflected fairly well disturbances in N as well as K supply to potato. A good supply of K and Zn to potato can improve N management just before tuber initiation.https://pse.agriculturejournals.cz/artkey/pse-201811-0004_the-early-prognosis-of-tuber-yield-based-on-nitrogen-status-in-potato-tops.phpsolanum tuberosum l., tuberous cropnitrogen managementnutrient content |
| spellingShingle | Witold GRZEBISZ Jarosław POTARZYCKI Maria BIBER The early prognosis of tuber yield based on nitrogen status in potato tops Plant, Soil and Environment solanum tuberosum l., tuberous crop nitrogen management nutrient content |
| title | The early prognosis of tuber yield based on nitrogen status in potato tops |
| title_full | The early prognosis of tuber yield based on nitrogen status in potato tops |
| title_fullStr | The early prognosis of tuber yield based on nitrogen status in potato tops |
| title_full_unstemmed | The early prognosis of tuber yield based on nitrogen status in potato tops |
| title_short | The early prognosis of tuber yield based on nitrogen status in potato tops |
| title_sort | early prognosis of tuber yield based on nitrogen status in potato tops |
| topic | solanum tuberosum l., tuberous crop nitrogen management nutrient content |
| url | https://pse.agriculturejournals.cz/artkey/pse-201811-0004_the-early-prognosis-of-tuber-yield-based-on-nitrogen-status-in-potato-tops.php |
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