Physical properties of a latosol eutrophic red under management systems after different winter crops successful by the soybean crop
| Autor: | Jeferson Tiago Piano, Milciades Ariel Melgarejo Arrua, Loreno Egidio Taffarel, Paulo Sérgio Rabello de Oliveira, Shaline Sefara Lopes Fernandes, Poliana Ferreira da Costa, M. V. M. Sarto |
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| Rok vydání: | 2016 |
| Předmět: |
0106 biological sciences
biology Randomized block design Compaction 04 agricultural and veterinary sciences biology.organism_classification Latosol 01 natural sciences Penetrometer law.invention chemistry.chemical_compound Soil structure chemistry Agronomy Crambe law Glyphosate 040103 agronomy & agriculture 0401 agriculture forestry and fisheries Environmental science Cultivar General Agricultural and Biological Sciences 010606 plant biology & botany |
| Zdroj: | African Journal of Agricultural Research. 11:3929-3939 |
| ISSN: | 1991-637X |
| DOI: | 10.5897/ajar2016.11320 |
| Popis: | The objective was to verify the influence of winter crops under management mechanical (roller knife) and chemical (glyphosate), on soil physical properties and yield of soybeans. The experiment was carried out at the field under randomized block design in tracks scheme. The treatments consisted of four different winter crops (oats IPR 126, wheat BRS Tarumat crambe FMS Bright and forage radish cultivar common) in tracks A and management different (chemical and mechanical) in bands B. The soil properties (macroporosity, microporosity, total porosity and density) were determined by collecting soil core in layers 0-10 and 10-20 cm depth, penetration resistance was determined with the aid of a penetrometer impact to a depth of 30 cm. The soybean harvest was held on 03/12/13, collecting two lines of the floor area of each plot. The evaluations were carried out after the winter crop management and post-harvest of soybeans. There was no significant difference in the interaction of the factors to the values of the porosity in the layer 0-10 cm of soil. As to the values obtained for the penetration resistance of the soil, it was found that the oat (0.91 MPa) and crambe (1.43 MPa) provided significant differences in the layer 0-5 cm depth, after the cycle of winter crops. Winter crops and different managements not affect soybean yield. Key words: Plantation direct, compaction, conservation systems, soil structure. |
| Databáze: | OpenAIRE |
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