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| Conti,Lessandro De; Ceretta,Carlos Alberto; Couto,Rafael da Rosa; Ferreira,Paulo Ademar Avelar; Silva,Lincon Oliveira Stefanello da; Piccin,Rogério; Lourenzi,Cledimar Rogério; Girotto,Eduardo; Brunetto,Gustavo. |
| Abstract: The objective of this work was to evaluate the effect of pig slurry applications on the exchangeable Al content, activity, and distribution of Al chemical species in the soil solution. Soil samples of a Typic Hapludalf were obtained from an experiment conducted during eight years, with 19 applications of 0, 20, 40, and 80 m3 ha-1 pig slurry. The soil samples were collected in stratified layers to determine exchangeable Al content and to extract the soil solution by the saturated soil paste method. The concentrations of the main cations and anions, dissolved organic carbon, and pH in the soil solution were determined. The distribution of the chemical species of Al and the activity of the Al3+ species were obtained through the Visual Minteq... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Inorganic ligand; Organic amendment; Phytotoxicity; Soil solution. |
| Ano: 2017 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0100-204X2017001000914 |
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| Lira-Saldivar,RH; Salas,MA; Cruz,J; Coronado,A; Hernández,FD; Guerrero,E; Gallegos,G. |
| The effect of soil solarization during 30 days and the fertilize with goat manure to the soil at the rate of 0,20 and 40 t ha-1 was studied; the objective of this experiment was to increase soil temperature in order to study its effect on weeds population and on muskmelon yield. Solarization produced maximum soil temperatures of 55°C and 44°C at the depth of 1.5 and 10 cm respectively, which in turn clearly reduced the emergence and growth of weeds in solarized plots. Goat manure only increased soil temperature by 1.5 to 2.5°C, but it had an apparent antagonist effect on weeds density, however, this effect was not clear on solarized plots. Perennial weeds like Cyperus esculentus was affected but not eliminated by solarization. The effect of high soil... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Weeds control; Organic amendment; Muskmelon; Soil temperature. |
| Ano: 2004 |
URL: http://www.scielo.org.ar/scielo.php?script=sci_arttext&pid=S1851-56572004000100025 |
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| Arismendi,Nolberto; Böhm,Laura. |
| Extracts of many plant species have shown nematicide activity attributable to phytochemicals present in their tissues or formed during a degradation process. Nevertheless, before the application of plant compounds in the field, it is necessary to know their effect on plant hosts. Three concentrations (1, 2.5 and 5% w/w) of dry leaves of Buddleja globosa, Drymis winteri, Eucalyptus globulus, Gevuina avellana, Laurelia sempervirens and Ugni molinae were evaluated on growth parameters (plant height, root length and leaf dry matter) in plants of Lactuca sativa infested with Meloidogyne hapla. Lettuce growth parameters were significantly affected by the interaction between the species and dry leaf tissues concentrations. Drymis winteri showed the biggest... |
| Tipo: Journal article |
Palavras-chave: Forestry species; Lactuca sativa; Meloidogyne hapla; Organic amendment; Root-knot nematodes. |
| Ano: 2011 |
URL: http://www.scielo.cl/scielo.php?script=sci_arttext&pid=S0718-16202011000100007 |
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| Lopes,Everaldo Antônio; Ferraz,Silamar; Ferreira,Paulo Afonso; Freitas,Leandro Grassi de; Dallemole-Giaretta,Rosangela. |
| Greenhouse experiments were conducted to evaluate the effect of soil amendment with chopped (1cm²) or ground (1mm sieve) dry leaves of assa-peixe (Vernonia polyanthes), lemon-grass (Cymbopogon citratus), eucalyptus (Eucalyptus citriodora), castor (Ricinus communis), mango (Mangifera indica) or neem (Azadirachta indica) for the control Meloidogyne javanica. Into the soil (Yellow red oxisol) of each pot were added leaves (5g kg-1 of soil) and 5,000 eggs of the nematode. After seven days, one tomato seedling "Santa Cruz Kada" was transplanted to each pot. The tomato root weight, galls and eggs/root system were determined 60 days after transplant. None of the soil amendments reduced gall or eggs, when applied as leaf pieces. However, all tested plant species... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Root-knot nematodes; Organic amendment; Castor; Neem; Eucalyptus; Lemon-grass; Mango and assa-peixe. |
| Ano: 2011 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0103-84782011000600003 |
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