ABSTRACT Using sensors to estimate soil water content is important for managing resources and making decisions on their multiple uses. However, commercial platforms are still extremely expensive, the development of more accessible systems essential. This study assesses low-cost capacitive v1.2 in using Arduino platform. Undeformed samples two different soils (Rhodic Paleudalf Rhodic Hapludox) were collected at depths with three sample volumes. The weight difference data due drainage every 5...

Leaf quality is one of the most valued commercial parameters in cultivation flowers and ornamental plants vases, with soil or substrate conditions playing a fundamental role its successful practice. Thus, objective this study was to evaluate vegetative development marigold (Tagetes patula L.) cultivated soils contaminated by Cu, seeking verify phytoremediation potential for an agriculture low environmental impact. The experiment took place greenhouse, using completely randomized, 5x2...

Water availability is one of the most serious natural resource issues facing California, especially given projections for future climate change. The 3 million ha oak ( Quercus spp.) woodlands play a critical role in California's water supply system, providing runoff primarily from winter rainfall events and hosting two‐thirds state's drinking reservoirs. Thus, understanding storage streamflow regulation by soils these watersheds essential planning under change scenarios. primary objectives...

ABSTRACT: The leaf area determination are extremely important in agronomic and physiological studies, as they provide valuable information vegetable metabolism, methods used for this purpose should be accurate. This study aimed to develop polynomial models estimate (LA). were discs ImageJ(r) software, with measures of length (L), width (W), relationship between times (LW) leaves the bell pepper crop two field trials hybrids: Arcade Impacto, well as, correlation values found when using...

Streamflow generation in semiarid Mediterranean environments is governed by the timing and amount of precipitation. Although topography widely considered a dominant factor controlling delivery water to streams, we hypothesized that antecedent soil moisture stratigraphy regulates vertical dimension hydrologic flowpaths streamflow headwater catchment Sierra Foothill Region California. We monitored moisture, subsurface lateral flow, streamflow, meteorological conditions 33-ha study linkage...

The UC Sierra Foothill Research and Extension Center (SFREC) is located in the heart of typical California blue oak live woodlands within metavolcanic terrain Nevada foothills. These types often exist at interface between urban, wild agricultural lands are used extensively for livestock grazing, wildlife habitat surface water supply. Soil surveys this region SFREC depict relatively few soil compared to areas that support more-intensive land uses. Despite inferred homogeneity, our study...

This study aims to evaluate the effects of supplemental irrigation in bell pepper crop under shade mesh and open-field improve management water resources. The experimental design was a randomized complete block with four replications ten treatments factorial arrangement (five levels combined two levels). Irrigation were 0.25, 0.50, 0.75 1.0 rate evapotranspiration control (no irrigation). Shading 0 50% reduction photosynthetically active radiation, compared open field conditions. Crop...

As atividades de mineração e viticultura do Rio Grande Sul têm contribuído para a contaminação solo por cobre. Este trabalho objetivou avaliar o efeito doses cobre no crescimento na qualidade mudas timbó (Ateleia glazioviana) dedaleiro (Lafoensia pacari). O delineamento foi inteiramente casualizado em arranjo fatorial (2 x 4), formado duas espécies florestais quatro (0, 64, 128 192 mg kg-1 solo) com cinco repetições. Avaliaram-se altura da planta, diâmetro colo, peso matéria seca radicular...

Minimizing the harmful effects of copper (Cu) in soil, using plants are slow and gradual, requiring identification species with fitorremediativa fitness for this process. Thus, present work had as objective to evaluate cultivation chrysanthemum cv. Dark Fiji soil added Cu promising phytoremediation. The experiment was conducted period from July December 2014, greenhouse Floriculture UFSM. In a completely randomized experimental design, five treatments composed doses amounts 250, 500, 750...

O controle de insetos-praga com inseticidas é um recurso importante para manutenção das altas produtividades na cultura da soja. Porém, pouco se conhece sobre o desempenho novos inseticidas, tais como, clorantraniliprole em condições adversas, como caso precipitações pluviométricas após a pulverização agrícola. A ação dos adjuvantes associados aos outro fator relacionado à melhora sua eficiência. objetivo deste estudo foi avaliar influência quatro períodos precipitação artificial do...

Biostimulants offer a potentially novel approach for the regulation/modification of physiological processes in plants to stimulate growth, mitigate stress-induced limitations, and increase yield. The objective this work was evaluate influence vegetable biostimulants soybean crop subjected different soil water conditions. experiments were carried out 2017/2018 2018/2019, completely randomized design (water deficit, combination biostimulants, application time). combinations time were: no...

CONSUMO HÍDRICO DE CALLA LILY SUBMETIDA AO MANEJO IRRIGAÇÃO VIA SOLO E TEORES COBRE1 JANINE FARIAS MENEGAES2; ALEXANDRE SWAROWSKY3; FERNANDA ALICE ANTONELLO LONDERO BACKES4; ROGÉRIO ANTONIO BELLÉ4 HÉLCIO JOSÉ IZÁRIO FILHO5 1 Manuscrito referente a parte da Dissertação de Mestrado em Engenharia Agrícola Janine Farias Menegaes.2 Eng. Agrônoma, Mestranda do Programa Pós-Graduação (PPGEA), Universidade Federal Santa Maria (UFSM), Avenida Roraima, 1000, Prédio 42, Sala 3325, CEP 97.105-900,...

O manejo inadequado dos recursos naturais tem como consequencia a crescente degradacao desse meio. Assim sendo, gestao de bacias hidrograficas vem se aprofundando, pois ela e considerada unidade para o planejamento conservacao do ambiente natural urbano. Neste trabalho, objetivou-se realizar uma reflexao sobre aplicabilidade importância da bacia hidrografica ambiental, por meio conceitos mais importantes que integram mesma. Foi observado relacao entre intima. Entretanto, ha necessidade um...

This study aims to evaluate the effect of supplemental irrigation levels on vegetative parameters bell pepper grown in open field and under shade mesh. The experimental design was a randomized complete block with four replications ten treatments factorial scheme (four combined shade). Irrigation consisted 0.25, 0.50, 0.75 1.0 rate crop evapotranspiration control (no-irrigation).Shading treatment 50% reduction photosynthetically active radiation compared conditions. Vegetative were influenced...

Com vistas a viabilizar alternativas de manejo da cultura do arroz irrigado objetivou-se, com o presente trabalho, avaliar diferentes sistemas palha azevém e aplicação adubação base em relação à concentração nutrientes na solução solo três locais. O experimento foi conduzido Universidade Federal Santa Maria, Depressão Central Rio Grande Sul, no ano agrícola 2000/01. delineamento experimental blocos ao acaso, quatro repetições, parcelas sub-subdivididas, fatores: a) resteva níveis (i) planta...

Contaminações cúpricas em áreas de vinhedos no sul do Brasil são comuns devido ao combate doenças fúngicas. A fitoextração pode viabilizar a descontaminação, pois é econômica e ambientalmente favorável. O objetivo deste estudo foi determinar adaptação o potencial da aveia preta solo com diferentes doses cobre. Foi coletado contaminado por cobre área mata nativa, ambos nas dependências Embrapa, município Bento Gonçalves - RS. Com base na análise química contaminado, 5 dosagens (0, 45, 90, 135...

<title>Abstract</title> The use of sensors to estimate soil water content is great importance for managing resources and making decisions on its multiple uses. However, commercial platforms are still very expensive, the development more accessible systems essential. This study was identify insights in calibration low-cost capacitive v1.2 using Arduino platform. Undeformed samples two different soils (Rhodic Paleudalf Rhodic Hapludox) were collected at depths (0 10cm 20 30cm) sample volumes...

the herbicide glyphosate has a non-selective active ingredient for functional groups carboxyl, amino, and phosphonate. Its use was accentuated with opening of agricultural frontiers genetically modified organisms, due to great demand food in world. Thus, objective this study analyze what scientific productions from 2010 2020 bring about theme its impacts on environment. comprised search papers Capes - Web Science Scopus Journals, covering 62 studies. Europe America stood out productions,...

The characterization of evapotranspiration requires time and financial investment, but from meteorological data, it is possible to estimate the values this phenomenon by means indirect methods. Penman-Monteith FAO (PM) method considered most accurate Food Agriculture Organization United Nations (FAO), which recommends its use because takes into account solar radiation, temperature, relative humidity, wind speed, data that are not always available in some locations Brazil, making necessary...

O pagamento por serviços ambientais (PSA) é um mecanismo de política pública, que combina e determina práticas para a conservação ambiental desenvolvimento sustentável. No entanto, o PSA bacias hidrográficas, pouco utilizado no Brasil, permite ampliar efetividade em quatro aspectos: custos do programa, adicionalidade, perdas ou excessos mensuração, bem como prestação real ambientais. Desta forma, este trabalho teve objetivo determinar os aspectos relativos ao hidrográficas. A metodologia...