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| Araújo, Ademir Sérgio Ferreira de; Lima, Luciano Moura; Melo, Wanderley José de; Santos, Vilma Maria dos; Araujo, Fabio Fernando de. |
| This study evaluated soil properties and cowpea yield after six years of consecutive amendment of composted tannery sludge. The compost was applied annually at 0, 2.5, 5, 10, and 20 Mg ha-1 and at the end of the sixth year, the chemical and physical properties of the soil were evaluated using a randomized block design. The Cr, P, K, Ca, Na and organic C contents and the pH and cation exchange capacity increased linearly after six years of compost amendment. The soil bulk density decreased linearly while the aggregate stability index increased after compost amendment. As a consequence of the changes in the chemical and physical properties of the soil, cowpea yield showed a quadratic response to the tannery rates, with an estimated maximum cowpea yield at... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Waste management; Soil fertility; Soil quality Ciencia do Solo. |
| Ano: 2016 |
URL: http://periodicos.uem.br/ojs/index.php/ActaSciAgron/article/view/28281 |
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| Araújo, Ademir Sérgio Ferreira de; Melo, Wanderley José de. |
| Agricultural production systems have to combine management practices in order to sustain soil's profitability and quality. Organic farming is gaining worldwide acceptance and has been expanding at an annual rate of 20% in the last decade, accounting for over 24 million hectares worldwide. Organic practices avoid applications of synthetic fertilizers and pesticides, rely on organic inputs and recycling for nutrient supply, and emphasize cropping system design and biological processes for pest management, as defined by organic farming regulation in the world. In comparison with conventional farming, organic farming has potential benefits in improving food quality and safety. Plant production in organic farming mainly depends on nutrient release as a function... |
| Tipo: Journal paper |
Palavras-chave: Soil biology. |
| Ano: 2010 |
URL: http://orgprints.org/22389/1/Araujo_Soil.pdf |
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