9 documents found, page 1 of 1
Impacts of plant growth-promoting rhizobacteria on tropical forage grass in Bra...
LOPES, M. J. dos S.; DIAS FILHO, M. B.; CASTRO, T. H. dos R.; SILVA, E. F. da; RÊGO, M. C. F.; SILVA, G. B. daThe aim of this study was to evaluate the effects of plant growth-promoting rhizobacteria effects on anatomical characteristics and nutritional value of Brachiaria (Syn. Urochloa) brizantha cv. BRS Piatã. The experimental design applied was completely randomized design with three treatments: (1) non-inoculated unfertilized-control plants (C-), (2) non-inoculated fertilized-control plants (C+) and (3) B. brizant...
Cost of opportunity: economic competitiveness of community forest management by...
SILVA, D. A. S. da; FERREIRA, R. L. C.; GUEDES, M. C.; SOUSA, C. S. C. de; LIMA, R. B. de; ALMEIDA, A. S. de; SILVA, E. F. daThe structuring of a consolidated forest economy in the Amazon region would be an unprecedented contribution to the conservation and socioeconomics of the rural community. Therefore, the objective of this work was to conduct a literature review on the economic competitiveness of multiple-use community-forest management by land use in the Amazon region and thus elucidate the main causes and possible solutions fo...
Allocation of storage yards in management plans in the Amazon by means of mathe...
SILVA, E. F. da; SILVA, G. F. da; FIGUEIREDO, E. O.; BINOTI, D. H. B.; MENDONÇA, A. R. de; TORRES, C. M. M. E.; PEZZOPANE, J. E. M.The present study aimed to optimize the location of wood storage yards in forest management for the production of wood in the Brazilian Amazon. The area of forest management studied was 638.17 ha, with 1478 trees selected for harvest with a diameter at breast height of at least 50 cm in accordance with Brazilian legislation. Taking the topography into account-permanent preservation areas, restricted areas, and ...
Evaluation of soil temperature effect on herbicide leaching potential into grou...
PARAIBA, L. C.; CERDEIRA, A. L.; SILVA, E. F. da; MARTINS, J. S.; COUTINHO, H. L. da C.The effect of annual variations in the daily average soil temperatures, at different depths, on the calculation of pesticide leaching potential indices is presented. This index can be applied to assess the risk of groundwater contamination by a pesticide. It considers the effects of water table depth, daily recharge net rate, pesticide sorption coefficient, and degradation rate of the pesticide in the soil. The...
Agricultural management systems affect on physical, chemical and microbial soil...
LOURENTE, E. R. P.; SILVA, E. F. da; MERCANTE, F. M.; SERRA, A. P.; PEIXOTO, P. P. P.; FERREIRA, R. C. F.; ENSINAS, S. C.; NETO NETO, A. L.The purpose of this research was to assess the effects of replacement of native ?Cerrado? vegetation (NV) into croplands on soil chemical, physical and microbial properties. This research was carried out on a farm under Rhodic Hapludox soil with different types of agricultural managements systems, and it was used a NV to compare the systems. The experimental design was set up in completely randomized with five ...
Soybean agronomic performance in narrow and wide row spacing associated with NP...
ROSA, C. B. C. J.; MARCHETTI, M. E.; SERRA, A. P.; SOUZA, L. C. F. de; ENSINAS, S. C.; SILVA, E. F. da; LOURENTE, E. R. P.; DUPAS, E.The purpose of this research was to evaluate soybean agronomic traits performance under row spacing associated with NPK fertilizer. The experimental design was set up in a randomized complete block and the treatments were arranged with factorial concept, consisting of four NPK (02-20-18%) fertilizer rates (0; 200; 400 and 600 kg ha-1) and five row spacing (0.35; 0.45; 0.50; 0.60 and 0.70 m), with three replicat...
Cover crops affect on soil organic matter fractions under no till system.
ENSINAS, S. C.; SERRA, A. P.; MARCHETTI, M. E.; SILVA, E. F. da; PRADO, E. A. F. do; LOURENTE, E. R. P.; ALTOMAR, P. H.; POTRICH, D. C.; MARTINEZ, M. A.The purpose of this research was to identify the soil organic matter (SOM) fractions changes in a crop rotation system under no-till system (NTS). This research was carried out from October 2010 to February 2014 in a Rhodic Hapludox. The experiment was set up in completely randomized blocks in a factorial design with eight cover crops and three soil depths (0-5, 5-10 and 10-20 cm) with four repetitions. Cover c...
Infection by Helminthes in Mylossoma duriventre Cuvier, 1817, a characid from t...
SILVA, E. F. da; TAVARES-DIAS, M.This study describes the parasitic fauna of Mylossoma duriventre caught at Lake Coari, a tributary of the middle Solimões River, in the state of Amazonas (central Amazon, Brazil) and the relative condition factor (Kn). Out of 70 necropsied specimens, 90% had the gills parasitized by the helminth Anacanthorus paraspathulatus Kritsky, Boeger & Van Every, 1992 (Dactylogyridae: Anacanthorinae) and the intestine by ...
Diversity and genetic struture in cajá tree (Spondias mombin L.) populations in...
SILVA, E. F. da; MARTINS, L. S. S.; OLIVEIRA, V. R. deSpondias mombinL. is a fruit tree from the American continent from the Anacardiaceae family. In Brazil it is common in different vegetation types but is more frequent in the Atlantic and Amazonian rainforests. It is economically important because of its fruits, which are widely consumed raw or processed as fruit jellies, juices and ice creams. The leaves have great importance in the pharmaceutical industry beca...