Gypsum incubation tests to evaluate its potential effects on acidic soils of Colombia
Tropical soils are characterized by acidity and poor plant nutrient availability, limiting their agricultural productivity. These soils are commonly amended with lime, but its low solubility impairs its effectiveness to enhance soil fertility. The use of gypsum has gained attention among farmers due...
| Main Authors: | , |
|---|---|
| Format: | Article |
| Language: | English |
| Published: |
Universidad Nacional de Colombia, Sede Medellín
2020-09-01
|
| Series: | Revista Facultad Nacional de Agronomía Medellín |
| Subjects: | |
| Online Access: | https://revistas.unal.edu.co/index.php/refame/article/view/85259 |
| _version_ | 1818522709586345984 |
|---|---|
| author | Jorge Enrique Cuervo-Alzate Nelson Walter Osorio |
| author_facet | Jorge Enrique Cuervo-Alzate Nelson Walter Osorio |
| author_sort | Jorge Enrique Cuervo-Alzate |
| collection | DOAJ |
| description | Tropical soils are characterized by acidity and poor plant nutrient availability, limiting their agricultural productivity. These soils are commonly amended with lime, but its low solubility impairs its effectiveness to enhance soil fertility. The use of gypsum has gained attention among farmers due to its higher solubility and mobility in the soil, local accessibility, and low price. Therefore, this study was conducted to determine the effects of Agricultural Gypsum (AG) addition on ten Colombian acid soils that had poor fertility and contrasting their physical and chemical characteristics. Surface (0-20 cm) soil samples were air-dried, sieved (<2 mm), and transferred into plastic vases, 40 g (dry base) per vase. Increasing rates of gypsum were added by duplicate: 0.0, 0.25, 0.5, 1.0, 2.0, 4.0, 8.0, and 16.0 g kg-1. Then, the soils were incubated for two weeks and watered to maintain 50% of their maximum water holding capacity. Soil pH, Al+3, Ca+2, Mg+2, K+, S-SO4-2, and P-H2PO4-2 were measured using standard methods. The results showed that AG addition significantly (P<0.05) increased soil exchangeable Ca+2-K+, Ca+2 saturation, S-SO4-2 concentration, and exchangeable Al+3, particularly with doses above 4.0 g kg-1. In contrast, soil Al+3 saturation, P-H2PO4-2 and pH significantly decreased as the AG doses increased, while soil exchangeable Mg+2 levels were not significantly affected. The use of gypsum incubation tests could be promissory for its effects on soil amelioration associated mainly to increase soil exchangeable Ca2+ and S-SO 42- and to decrease Al3+ saturation. |
| first_indexed | 2024-12-11T05:36:40Z |
| format | Article |
| id | doaj.art-d6742ce91f2c4752aed0ff3e05e95908 |
| institution | Directory Open Access Journal |
| issn | 0304-2847 2248-7026 |
| language | English |
| last_indexed | 2024-12-11T05:36:40Z |
| publishDate | 2020-09-01 |
| publisher | Universidad Nacional de Colombia, Sede Medellín |
| record_format | Article |
| series | Revista Facultad Nacional de Agronomía Medellín |
| spelling | doaj.art-d6742ce91f2c4752aed0ff3e05e959082022-12-22T01:19:16ZengUniversidad Nacional de Colombia, Sede MedellínRevista Facultad Nacional de Agronomía Medellín0304-28472248-70262020-09-017339349935910.15446/rfnam.v73n3.8525953983Gypsum incubation tests to evaluate its potential effects on acidic soils of ColombiaJorge Enrique Cuervo-Alzate0Nelson Walter Osorio1Universidad Nacional de Colombia - Sede MedellínUniversidad Nacional de Colombia - Sede MedellínTropical soils are characterized by acidity and poor plant nutrient availability, limiting their agricultural productivity. These soils are commonly amended with lime, but its low solubility impairs its effectiveness to enhance soil fertility. The use of gypsum has gained attention among farmers due to its higher solubility and mobility in the soil, local accessibility, and low price. Therefore, this study was conducted to determine the effects of Agricultural Gypsum (AG) addition on ten Colombian acid soils that had poor fertility and contrasting their physical and chemical characteristics. Surface (0-20 cm) soil samples were air-dried, sieved (<2 mm), and transferred into plastic vases, 40 g (dry base) per vase. Increasing rates of gypsum were added by duplicate: 0.0, 0.25, 0.5, 1.0, 2.0, 4.0, 8.0, and 16.0 g kg-1. Then, the soils were incubated for two weeks and watered to maintain 50% of their maximum water holding capacity. Soil pH, Al+3, Ca+2, Mg+2, K+, S-SO4-2, and P-H2PO4-2 were measured using standard methods. The results showed that AG addition significantly (P<0.05) increased soil exchangeable Ca+2-K+, Ca+2 saturation, S-SO4-2 concentration, and exchangeable Al+3, particularly with doses above 4.0 g kg-1. In contrast, soil Al+3 saturation, P-H2PO4-2 and pH significantly decreased as the AG doses increased, while soil exchangeable Mg+2 levels were not significantly affected. The use of gypsum incubation tests could be promissory for its effects on soil amelioration associated mainly to increase soil exchangeable Ca2+ and S-SO 42- and to decrease Al3+ saturation.https://revistas.unal.edu.co/index.php/refame/article/view/85259acidityagricultural gypsumaluminumcalcium sulfatephsoil fertility |
| spellingShingle | Jorge Enrique Cuervo-Alzate Nelson Walter Osorio Gypsum incubation tests to evaluate its potential effects on acidic soils of Colombia Revista Facultad Nacional de Agronomía Medellín acidity agricultural gypsum aluminum calcium sulfate ph soil fertility |
| title | Gypsum incubation tests to evaluate its potential effects on acidic soils of Colombia |
| title_full | Gypsum incubation tests to evaluate its potential effects on acidic soils of Colombia |
| title_fullStr | Gypsum incubation tests to evaluate its potential effects on acidic soils of Colombia |
| title_full_unstemmed | Gypsum incubation tests to evaluate its potential effects on acidic soils of Colombia |
| title_short | Gypsum incubation tests to evaluate its potential effects on acidic soils of Colombia |
| title_sort | gypsum incubation tests to evaluate its potential effects on acidic soils of colombia |
| topic | acidity agricultural gypsum aluminum calcium sulfate ph soil fertility |
| url | https://revistas.unal.edu.co/index.php/refame/article/view/85259 |
| work_keys_str_mv | AT jorgeenriquecuervoalzate gypsumincubationteststoevaluateitspotentialeffectsonacidicsoilsofcolombia AT nelsonwalterosorio gypsumincubationteststoevaluateitspotentialeffectsonacidicsoilsofcolombia |