Biblioteca Digital de VanguardiaPenetration resistance of a dystrophic Red-Yellow Latosol (Oxisol) under different managements and methods
Soil management systems have a great influence on soil physical properties and are related to soil compaction. This work aimed to evaluate the soil mechanical resistance to penetration of a dystrophic Red-Yellow Latosol (Oxisol) under different management. The experiment was carried out at Embrapa R...
| Autores principales: | , , , , , , , |
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| Formato: | info:eu-repo/semantics/article |
| Lenguaje: | Portugués |
| Publicado: |
Universidade de São Paulo. Faculdade de Filosofia, Letras e Ciências Humanas
2020
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| Materias: | |
| Acceso en línea: | https://www.revistas.usp.br/rdg/article/view/162486 http://biblioteca-repositorio.clacso.edu.ar/handle/CLACSO/42353 |
| Sumario: | Soil management systems have a great influence on soil physical properties and are related to soil compaction. This work aimed to evaluate the soil mechanical resistance to penetration of a dystrophic Red-Yellow Latosol (Oxisol) under different management. The experiment was carried out at Embrapa Rondônia experimental field, in Porto Velho, RO, Brazil. Samples were collected for analysis at depths from 0 to 0.05; 0.05 to 0.10; and 0.10 to 0.20 m. The penetrometers used were: an electronic model MA-933 / Marconi, and an automated field, model SOLO TRACK / Falker. The treatments consisted of the absence and addition of 2000 kg ha -1 of agricultural plaster, absence and presence of soil scarification, and three crop succession systems: SP (soybean / fallow), SMP (soybean / corn / fallow) and SMBP (soybean / maize / brachiaria / fallow). The experimental design was in randomized blocks, in a 2x2x3 factorial scheme with eight blocks. Data were subjected to analysis of variance, and when significance was found, means were compared by the Scott-Knott test at the 5% probability level. Crop succession systems can influence soil physical characteristics, the lowest PR values were observed in SMBP and SMP succession systems. The MA-933 was better to evaluate of mechanical penetration resistance. |
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