DETERMINING MORE PRECISE OPTIMUM NITROGEN RATE FOR EFFECTIVE TESTING OF RHIZOBIA ON GROUNDNUT (Arachis hypogaea L.) IN THE GLASSHOUSE
A study was conducted to determine the adequate mineral N requirement of groundnut (Arachis hypogaea L.) for comparison with rhizobia strains in the glasshouse. Ten treatments, six mineral N rates (0, 0.2, 0.5, 1.0, 3.0 and 5.0 mmoles of N twice a week), three indigenous rhizobia (KBU 026, SNN 335 a...
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| स्वरूप: | Online |
| भाषा: | अंग्रेज़ी |
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The Faculty of Agriculture Obafemi Awolowo University, Ile-Ife, Nigeria.
2020
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| ऑनलाइन पहुंच: | https://ija.oauife.edu.ng/index.php/ija/article/view/579 |
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| _version_ | 1810820103467433984 |
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| author | ABDULLAHI, A. A. ABUBAKAR, F. J. OYEDELE, A. O. |
| author_facet | ABDULLAHI, A. A. ABUBAKAR, F. J. OYEDELE, A. O. |
| author_sort | ABDULLAHI, A. A. |
| collection | OJS |
| description | A study was conducted to determine the adequate mineral N requirement of groundnut (Arachis hypogaea L.) for comparison with rhizobia strains in the glasshouse. Ten treatments, six mineral N rates (0, 0.2, 0.5, 1.0, 3.0 and 5.0 mmoles of N twice a week), three indigenous rhizobia (KBU 026, SNN 335 and SNN 345) and a standard rhizobia strain (NC 92) were involved. These were laid down in a Randomized Complete Block Design (RCBD), replicated five times with SAMNUT 24 as a test crop. The plants were harvested at six weeks after sowing. Shoot dry matter, flowers and N uptake of the plants, were determined, and subjected to analysis of variance (ANOVA). The results showed significant differences (P < 0.01) among the treatments in influencing all the parameters. The 0.5, 1.0, 5.0, 3.0, 0.2 and SNN 335 gave 88, 86, 85, 39, 23 and 15% higher shoot dry matter relative to 0 mmoles N control, respectively. While increases of 71, 67, 50, 50, 71, 33 and 50% flowers were observed on application of 0.5, 3.0, 5.0 ,1.0, KBU 026, NC 92 and SNN 335, respectively, relative to 0 mmoles N. Therefore, the application of 0.5 mmoles twice week-1 gave higher influence on shoot dry matter, flowers and N uptake relative to other N rates. KBU 026 and SNN 335 performed similar to the application of other N rates as shown by the percentages. The study indicates 0.5 mmoles twice a week-1 (1.0 mmoles N week-1) as the precise optimum N application rate that could facilitate N economy and accurate effectiveness testing of rhizobia strains on groundnut in the glasshouse. |
| format | Online |
| id | oai:ojs2.ija.oauife.edu.ng:article-579 |
| institution | My University |
| language | eng |
| publishDate | 2020 |
| publisher | The Faculty of Agriculture Obafemi Awolowo University, Ile-Ife, Nigeria. |
| record_format | ojs |
| spelling | oai:ojs2.ija.oauife.edu.ng:article-5792020-12-17T12:04:13Z DETERMINING MORE PRECISE OPTIMUM NITROGEN RATE FOR EFFECTIVE TESTING OF RHIZOBIA ON GROUNDNUT (Arachis hypogaea L.) IN THE GLASSHOUSE ABDULLAHI, A. A. ABUBAKAR, F. J. OYEDELE, A. O. groundnut, legumes, mineral nitrogen, Nitrogen fixation, Rhizobia. A study was conducted to determine the adequate mineral N requirement of groundnut (Arachis hypogaea L.) for comparison with rhizobia strains in the glasshouse. Ten treatments, six mineral N rates (0, 0.2, 0.5, 1.0, 3.0 and 5.0 mmoles of N twice a week), three indigenous rhizobia (KBU 026, SNN 335 and SNN 345) and a standard rhizobia strain (NC 92) were involved. These were laid down in a Randomized Complete Block Design (RCBD), replicated five times with SAMNUT 24 as a test crop. The plants were harvested at six weeks after sowing. Shoot dry matter, flowers and N uptake of the plants, were determined, and subjected to analysis of variance (ANOVA). The results showed significant differences (P < 0.01) among the treatments in influencing all the parameters. The 0.5, 1.0, 5.0, 3.0, 0.2 and SNN 335 gave 88, 86, 85, 39, 23 and 15% higher shoot dry matter relative to 0 mmoles N control, respectively. While increases of 71, 67, 50, 50, 71, 33 and 50% flowers were observed on application of 0.5, 3.0, 5.0 ,1.0, KBU 026, NC 92 and SNN 335, respectively, relative to 0 mmoles N. Therefore, the application of 0.5 mmoles twice week-1 gave higher influence on shoot dry matter, flowers and N uptake relative to other N rates. KBU 026 and SNN 335 performed similar to the application of other N rates as shown by the percentages. The study indicates 0.5 mmoles twice a week-1 (1.0 mmoles N week-1) as the precise optimum N application rate that could facilitate N economy and accurate effectiveness testing of rhizobia strains on groundnut in the glasshouse. The Faculty of Agriculture Obafemi Awolowo University, Ile-Ife, Nigeria. 2020-12-17 info:eu-repo/semantics/article info:eu-repo/semantics/publishedVersion Peer-reviewed Article application/pdf https://ija.oauife.edu.ng/index.php/ija/article/view/579 Ife Journal of Agriculture; Vol. 32 No. 3 (2020): Ife Journal of Agriculture; 1-11 0331-6351 eng https://ija.oauife.edu.ng/index.php/ija/article/view/579/464 Copyright (c) 2020 Ife Journal of Agriculture |
| spellingShingle | groundnut, legumes, mineral nitrogen, Nitrogen fixation, Rhizobia. ABDULLAHI, A. A. ABUBAKAR, F. J. OYEDELE, A. O. DETERMINING MORE PRECISE OPTIMUM NITROGEN RATE FOR EFFECTIVE TESTING OF RHIZOBIA ON GROUNDNUT (Arachis hypogaea L.) IN THE GLASSHOUSE |
| title | DETERMINING MORE PRECISE OPTIMUM NITROGEN RATE FOR EFFECTIVE TESTING OF RHIZOBIA ON GROUNDNUT (Arachis hypogaea L.) IN THE GLASSHOUSE |
| title_full | DETERMINING MORE PRECISE OPTIMUM NITROGEN RATE FOR EFFECTIVE TESTING OF RHIZOBIA ON GROUNDNUT (Arachis hypogaea L.) IN THE GLASSHOUSE |
| title_fullStr | DETERMINING MORE PRECISE OPTIMUM NITROGEN RATE FOR EFFECTIVE TESTING OF RHIZOBIA ON GROUNDNUT (Arachis hypogaea L.) IN THE GLASSHOUSE |
| title_full_unstemmed | DETERMINING MORE PRECISE OPTIMUM NITROGEN RATE FOR EFFECTIVE TESTING OF RHIZOBIA ON GROUNDNUT (Arachis hypogaea L.) IN THE GLASSHOUSE |
| title_short | DETERMINING MORE PRECISE OPTIMUM NITROGEN RATE FOR EFFECTIVE TESTING OF RHIZOBIA ON GROUNDNUT (Arachis hypogaea L.) IN THE GLASSHOUSE |
| title_sort | determining more precise optimum nitrogen rate for effective testing of rhizobia on groundnut arachis hypogaea l in the glasshouse |
| topic | groundnut, legumes, mineral nitrogen, Nitrogen fixation, Rhizobia. |
| topic_facet | groundnut, legumes, mineral nitrogen, Nitrogen fixation, Rhizobia. |
| url | https://ija.oauife.edu.ng/index.php/ija/article/view/579 |
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