|
|
|
|
|
| Almeida,André Quintão de; Souza,Rodolfo Marcondes Silva; Loureiro,Diego Campana; Pereira,Donizete dos Reis; Cruz,Marcus Aurélio Soares; Vieira,Jodnes Sobreira. |
| Abstract: The objective of this work was to model the spatial dependence and to map the rainfall erosivity index (EI30) in the semiarid region of Brazil. Registers of monthly erosivity from 210 rainfall stations were used, with daily time series equal to or greater than 15 years. Based on the values of the EI30, a spatial dependence model was made by adjusting the semivariogram. From the semivariogram models, erosivity isoline maps were generated with a kriging interpolator. According to the historical data series, the maximum monthly average value of the EI30 was observed in March, and the annual value ranged from 1,439 to 5,864 MJ mm ha-1 per year, classified as low and moderate, respectively. The highest EI30 values were obtained in the northern and... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: EI30; Geostatistics; Northeastern Brazil; Semivariogram. |
| Ano: 2017 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0100-204X2017000600371 |
| |
|
|
| Loureiro,Diego Campana; Aquino,Adriana Maria de; Zonta,Everaldo; Lima,Eduardo. |
| O objetivo deste trabalho foi avaliar a produção de adubo orgânico de resíduos domiciliares, por meio da integração de compostagem e vermicompostagem, com e sem esterco bovino nesses processos. Foram realizadas duas etapas experimentais: na primeira, testou-se a termoestabilização dos resíduos e estabeleceram-se condições propícias para a introdução das minhocas; na segunda, aos 27 dias de termoestabilização, os resíduos resultantes da primeira etapa foram colocados em um recipiente de 9 dm³, com e sem minhocas, em delineamento inteiramente casualizado, com quatro repetições. Aos 19, 55 e 69 dias, avaliaram-se as taxas de reprodução e sobrevivência das minhocas adultas e os atributos químicos do composto com e sem minhoca. As minhocas sobreviveram e se... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Minhocas; Composto orgânico; Reprodução. |
| Ano: 2007 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0100-204X2007000700018 |
| |
|
|
| Loureiro,Diego Campana; De-Polli,Helvécio; Ceddia,Marcos Bacis; Aquino,Adriana Maria de. |
| The objective of this work was to study the spatial variability of soil microbial biomass (SMB) and labile soil organic matter pools (labile SOM), under different management systems and plant cover. The experiment was conducted in a Haplic Planosol soil on an Integrated Agroecological Production System (SIPA), in Seropédica, Rio de Janeiro. The evaluated management systems were: alley cropping, pasture, and bush garden, the late one was used as reference area. Three grids of regular spacing of 2.5 x 2.5 meters were used for sampling, consisting of 25 georeferenced points each, where soil samples were taken at 0-10 cm depth. The following labile constituents of soil organic matter were determined: free light fraction (FLF), water soluble C and N, C and N of... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Organic carbon; Geoestatistic; Glomalin; Precision agriculture. |
| Ano: 2010 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0006-87052010000500010 |
| |
|
|
|
