CROP TOLERANCE OF SOIL ACIDITY RESULTING FROM LONG-TERM CONTINUOUS APPLICATION OF NITROGEN FERTILIZERS
The effects of long-term (12 years) continuous cultivation and application of different N-sources (ammonium sulphate, urea and calcium ammonium nitrate) on soil acidity and the growth of three crops were determined. Continuous cultivation, with and without nitrogen fertilizer addition, for twelve ye...
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| Định dạng: | Online |
| Ngôn ngữ: | Tiếng Anh |
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The Faculty of Agriculture Obafemi Awolowo University, Ile-Ife, Nigeria.
2020
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| Những chủ đề: | |
| Truy cập trực tuyến: | https://ija.oauife.edu.ng/index.php/ija/article/view/427 |
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| _version_ | 1810820080734306304 |
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| author | OLU OBI, A. ADEPETU, J.A. UPONI, J.l. |
| author_facet | OLU OBI, A. ADEPETU, J.A. UPONI, J.l. |
| author_sort | OLU OBI, A. |
| collection | OJS |
| description | The effects of long-term (12 years) continuous cultivation and application of different N-sources (ammonium sulphate, urea and calcium ammonium nitrate) on soil acidity and the growth of three crops were determined.
Continuous cultivation, with and without nitrogen fertilizer addition, for twelve years led to a marked reduction in soil pH and an increase in the soil exchange acidity. The exchange acidity in (NH4)2SO4 treated plots were significantly higher than all other treatments. Of the three N-sources used, ammonium sulphate gave the worst effect on the growth of the crops studied. The acid tolerance of the test crops as reflected in the growth parameters measured was in the order: maize > cowpea > tomato. The production of tomato appeared absolutely impossible under an acid soil condition. |
| format | Online |
| id | oai:ojs2.ija.oauife.edu.ng:article-427 |
| 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-4272020-08-26T11:15:49Z CROP TOLERANCE OF SOIL ACIDITY RESULTING FROM LONG-TERM CONTINUOUS APPLICATION OF NITROGEN FERTILIZERS OLU OBI, A. ADEPETU, J.A. UPONI, J.l. Continuous cultivation, soil acidity, nitrogen fertilizer, exchange acidity The effects of long-term (12 years) continuous cultivation and application of different N-sources (ammonium sulphate, urea and calcium ammonium nitrate) on soil acidity and the growth of three crops were determined. Continuous cultivation, with and without nitrogen fertilizer addition, for twelve years led to a marked reduction in soil pH and an increase in the soil exchange acidity. The exchange acidity in (NH4)2SO4 treated plots were significantly higher than all other treatments. Of the three N-sources used, ammonium sulphate gave the worst effect on the growth of the crops studied. The acid tolerance of the test crops as reflected in the growth parameters measured was in the order: maize > cowpea > tomato. The production of tomato appeared absolutely impossible under an acid soil condition. The Faculty of Agriculture Obafemi Awolowo University, Ile-Ife, Nigeria. 2020-08-26 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/427 Ife Journal of Agriculture; Vol. 9 No. 1 (1987): Ife Journal of Agriculture; 31-42 0331-6351 eng https://ija.oauife.edu.ng/index.php/ija/article/view/427/312 Copyright (c) 2020 Ife Journal of Agriculture |
| spellingShingle | Continuous cultivation, soil acidity, nitrogen fertilizer, exchange acidity OLU OBI, A. ADEPETU, J.A. UPONI, J.l. CROP TOLERANCE OF SOIL ACIDITY RESULTING FROM LONG-TERM CONTINUOUS APPLICATION OF NITROGEN FERTILIZERS |
| title | CROP TOLERANCE OF SOIL ACIDITY RESULTING FROM LONG-TERM CONTINUOUS APPLICATION OF NITROGEN FERTILIZERS |
| title_full | CROP TOLERANCE OF SOIL ACIDITY RESULTING FROM LONG-TERM CONTINUOUS APPLICATION OF NITROGEN FERTILIZERS |
| title_fullStr | CROP TOLERANCE OF SOIL ACIDITY RESULTING FROM LONG-TERM CONTINUOUS APPLICATION OF NITROGEN FERTILIZERS |
| title_full_unstemmed | CROP TOLERANCE OF SOIL ACIDITY RESULTING FROM LONG-TERM CONTINUOUS APPLICATION OF NITROGEN FERTILIZERS |
| title_short | CROP TOLERANCE OF SOIL ACIDITY RESULTING FROM LONG-TERM CONTINUOUS APPLICATION OF NITROGEN FERTILIZERS |
| title_sort | crop tolerance of soil acidity resulting from long term continuous application of nitrogen fertilizers |
| topic | Continuous cultivation, soil acidity, nitrogen fertilizer, exchange acidity |
| topic_facet | Continuous cultivation, soil acidity, nitrogen fertilizer, exchange acidity |
| url | https://ija.oauife.edu.ng/index.php/ija/article/view/427 |
| work_keys_str_mv | AT oluobia croptoleranceofsoilacidityresultingfromlongtermcontinuousapplicationofnitrogenfertilizers AT adepetuja croptoleranceofsoilacidityresultingfromlongtermcontinuousapplicationofnitrogenfertilizers AT uponijl croptoleranceofsoilacidityresultingfromlongtermcontinuousapplicationofnitrogenfertilizers |