Agriculture
Mostrando 25-36 de 2272 artigos, teses e dissertações.
-
25. DESIGN AND IMPLEMENTATION OF FLC APPLIED TO A SMART GREENHOUSE
ABSTRACT Greenhouse cultivation needs an accurate modelling and an optimised control system to ensure an adequate microclimatic condition for plants. It represents a complex task due to the high number of input factors. For this reason, an improved intermediate modelling was established under the platform of the MATLAB/Simulink environment to simulate the en
Eng. Agríc.. Publicado em: 2020-12
-
26. ADSORPTION OF ATRAZINE BY BIOCHARS PRODUCED FROM BYPRODUCTS OF THE WOOD INDUSTRY
ABSTRACT Atrazine is a herbicide widely used in agriculture; however, because of its toxicity, alternatives are needed to remove this compound from the environment. In this study, we investigated the adsorption process and the atrazine-adsorbing ability of three biochars produced at different pyrolysis temperatures from byproducts of the wood industry. The b
Eng. Agríc.. Publicado em: 2020-12
-
27. Steier G. Advancing Food Integrity: GMO Regulation, Agroecology, and Urban Agriculture. New York: CRC Press Inc. Tayloy & Francis Group; 2018.
RESUMO: Conhecer a forma como os passageiros vivenciam a hospitalidade a bordo das aeronaves que voam no mercado aéreo doméstico brasileiro permite identificar os fatores que são valorizados pelos passageiros e que podem se tornar um diferencial competitivo no disputado mercado da aviação. Dentro do universo da hospitalidade na aviação, a presente pes
Ciênc. saúde coletiva. Publicado em: 2020-12
-
28. Estimativa da Evapotranspiração na Mesorregião do Baixo São Francisco
Resumo Um dos fatores mais importantes em qualquer programa de gerenciamento dos recursos hídricos é ter o conhecimento sobre os processos naturais que regulam o ciclo hidrológico. O objetivo desse estudo foi realizar a estimativa da Evapotranspiração de referência (ETo) na bacia hidrográfica do Baixo São Francisco (BSF), com uso do método de Penman
Rev. bras. meteorol.. Publicado em: 2020-12
-
29. Effects of different legume green manures on tropical soil microbiology after corn harvest
ABSTRACT Legume green manure is a popular practice for sustainable agriculture in tropical environments. The use of grain, forage and purely green manure legumes in a subhumid tropical area in Northeast Brazil was investigated to determine the total C and N contents and estimate C-microbial biomass, soil basal respiration, microbial and metabolic quotients,
Bragantia. Publicado em: 2020-12
-
30. Efeitos de Trichoderma longibrachiatum (NGJ167) e composto no crescimento inicial de Bougainvillea spectabilis
Resumo Bougainvillea spectabilis é uma planta ornamental cultivada em zonas temperadas e tropicais. Elas são propagadas principalmente por estacas de caule; no entanto, a dificuldade de crescimento nos estágios iniciais ocorre rotineiramente, causando barreira para sua propagação em massa. Este estudo foi realizado para estudar os efeitos da integraçã
Ornam. Hortic.. Publicado em: 2020-12
-
31. Achados de fundoscopia de pacientes diabéticos e/ou hipertensos
ABSTRACT Soil compaction in agricultural areas has greatly increased in recent decades due to intensive farming practices, including short-cycle crops and machinery intensification. This study aimed to evaluate the impacts of management systems on the physical quality of a dystrophic Yellow Oxisol, in the Cerrado region of Brazil. Treatments consisted of fiv
Rev. bras.oftalmol.. Publicado em: 2020-10
-
32. APPLICABILITY OF THE SWAT HYDROLOGICAL MODEL IN THE MUCURI RIVER BASIN
ABSTRACT Land-use changes promote significant variations in streamflow regimes, and hydrological models allow studying their impacts. Based on this approach, this study aimed to assess the applicability of the SWAT model for different land-use scenarios and their respective impacts on the flow regime of the Mucuri River. The average monthly and daily water b
Eng. Agríc.. Publicado em: 2020-10
-
33. CHANGES IN PHYSICAL QUALITY OF OXISOLS UNDER DIFFERENT MANAGEMENT SYSTEMS IN THE BRAZILIAN CERRADO
ABSTRACT Soil compaction in agricultural areas has greatly increased in recent decades due to intensive farming practices, including short-cycle crops and machinery intensification. This study aimed to evaluate the impacts of management systems on the physical quality of a dystrophic Yellow Oxisol, in the Cerrado region of Brazil. Treatments consisted of fiv
Eng. Agríc.. Publicado em: 2020-10
-
34. OPERATIONAL AND ENERGY PERFORMANCE OF 250 kW DOUBLE WHEELED VERSUS RUBBER HALF-TRACKED TRACTORS IN THE SOYBEAN SOWING
ABSTRACT The technological innovation in agriculture seeks to improve the performance of mechanized assemblies and, currently, rubber half-tracks are a valuable solution for agricultural tractors, combining traction performance and less soil compaction. The objective of the experiment was to evaluate the operational and energy performance of double wheeled v
Eng. Agríc.. Publicado em: 2020-10
-
35. IMPORTANCE OF CROP PRODUCTIVITY AND EQUIPMENT LIFETIME IN THE STRATEGIC AND TACTICAL MANAGEMENT OF SUGARCANE HARVESTERS
ABSTRACT Recently, Brazilian agriculture and the mechanization process have been improved and developed, particularly in sugarcane cultivation. The developed processes should adopt suitable management practices in terms of the technical, economic, and operational logistical aspects. As a management tool, the present study aimed to measure the impact of the a
Eng. Agríc.. Publicado em: 2020-10
-
36. ACHPA: A sensor based system for automatic environmental control in hydroponics
Abstract The trend towards tunnel farming and hydroponic systems is increasing owing to the climatic changes as well as the need to increase crop yield. Hydroponic is a technique of growing plants without soil. Tunnel farming and hydroponic system requires controlled environmental parameters like temperature, humidity and soil moisture for better production
Food Sci. Technol. Publicado em: 2020-09