Pulse drip application is a management option to prevent clogging and improve water-use efficiency. The measurement of distribution uniformity opportune for pulse irrigation projects ensure efficiency since the shorter time, more negative influence transition periods have. objective present work was monitor quality system with different emitter models times. experiment conducted under laboratory bench conditions, 25 tests were performed each (2, 3, 6 12 minutes) model (non-compensated...

In arid and semi-arid regions, irrigation is extremely important for agricultural production. However, water salinity a major threat both to the soil-plant combination longevity of materials that make up system. Drip with direct intermittent photovoltaic pumping can play key role in optimizing saline water. This article compares two pump models understand which has greatest capacity reduce risks irrigated agriculture. The evaluation ideal was conducted using electrical hydraulic parameters...

Growing tomato plants with fertigation in sand substrates allows growers to maintain optimal levels of water and nutrients for crop production. This practice also reduces risk from phytopathogens the development saline conditions. Potassium (K) is most required nutrient by crop. research evaluated nutritional influence potassium on during beginning reproductive stage. After opening first flowers, are limited availability. Five doses K (60, 120, 180, 240, 300 mg dm-3 K) were applied via...

Irrigation is crucial for agricultural production in dry regions. However, water salinity a risk the soil–plant combination and longevity of materials that make up irrigation system. Drip using direct intermittent photovoltaic pumping can be key optimizing with saline water. This article compares two pump models to understand which has greatest capacity reduce risks irrigated agriculture, aiming system more sustainable through efficient irrigation, without need highly expensive corrective...

Com alto valor nutritivo e ótimas propriedades sensoriais, a goiaba (Psidium gujava L.) possui grande de mercado. No entanto, seu comércio é limitado devido às suas características fisiológicas que reduzem sua vida pós-colheita. Para aumentar útil das goiabas são necessários o uso novas tecnologias, entre elas vem se destacando revestimentos comestíveis com adição extratos vegetais. Desta forma, este trabalho teve objetivo avaliar conservação utilizando extrato barbatimão. Os tratamentos...

The topography directly influences the functioning of an irrigation system, being necessary determination uniformity to verify its performance. Statistical quality control is a powerful tool for verifying process. Thus, it was aimed use statistical in evaluation drip system different slopes. Christiansen’s coefficient (UC) and Uniformity Distribution (UD) were determined analyzed by graphs Shewhart, Zones CUSUM indices process capacity (Cp, Cpl Cpk), slopes (0%, 2% -2%). slope more...

The aim of this study is to identify homogeneous rainfall zones in the winter and summer 1st 2nd crops, state Paraná, Brazil. were defined by clustering using expectation-maximization (EM) algorithm transform seasonal series. Monthly average data collected from 157 weather stations for 20 years (1996 2015) employed. results show that number varied among growing seasons. crop presented two clusters, with averages 1489 1925 mm; second four 1849, 1004, 1454, 1182 had three 969, 1498, 1171 mm....

UNIFORMITY OF DRIP IRRIGATION SYSTEM WITH LIQUID PEAT ON DIFFERENT SLOPES ALLAN REMOR LOPES1; MARCIO ANTONIO VILAS BOAS1; FELIX AUGUSTO PAZUCH1; LUCIANO DALLA CORTE1; BENEDITO MARTINS GOMES1; ROSEBEL TRINDADE CUNHA PRATES2 1 Programa de Pós-Graduação em Engenharia Agrícola (PGEAGRI) – Departamento Recursos Hídricos e Saneamento Ambiental (RHESA), Universidade Estadual do Oeste Paraná (UNIOESTE), Rua Universitária 2069, Jardim Universitário, CEP: 85819-110, Cascavel, Paraná, Brasil,...

<title>Abstract</title> Current solar pumping technology uses electronic systems that increase the output power, performance and overall efficiency of system. However, even with reduced efficiency, system motor pump coupled directly to photovoltaic panel is clearly suitable for regions where access water more a priority than technology, irrigation in areas not connected electricity grid, populations without equipment technical support. This paper therefore describes methodology validating an...

The use of statistical process control tools in irrigation is becoming widespread as it allows for quick and effective investigation detection possible problems with drippers, especially when fertilizer used water different slopes. Therefore, the research quality charts to monitor urea concentration at inclinations lateral line. experiment was conducted a protected environment Irrigation Fertigation Laboratory - LIF) city Cascavel, Paraná State, Brazil. It followed randomized block design,...

A produtividade da cultura do feijão (Phaseolus vulgaris) sofre interferência de vários fatores, dentre eles, a sua densidade que influi consideravelmente no desenvolvimento cultura. Assim, o objetivo deste trabalho foi avaliar efeito diferentes densidades plantas sobre e feijão. O experimento conduzido em delineamento blocos ao acaso, cinco tratamentos com por metro linear: 6, 9, 12, 15 18 linear. cultivar utilizada IAC Milênio. Foram avaliadas nove variáveis, aferiu-se componentes...

<title>Abstract</title> The performance of new irrigation system configurations can be assessed by applying statistical process control techniques. aim this research was to use investigate variations in the application uniformity three systems that differed according manufacturer and, above all, thickness hose. carried out a protected environment at Irrigation and Fertigation Laboratory (LIF), Cascavel - PR. experiment conducted DIC, which dripper models were evaluated (P1 from Irritec 2.1...

O Balanço Hídrico Climatológico (BHC) é uma das formas de monitorar o armazenamento água no solo, sendo ferramenta essencial planejamento agrícola e estratégias manejo culturas. Apesar ser para planejamento, BHC ainda não conhecido regiões com atividade agrícola. Portanto, objetivou-se este estudo estimar analisar Thornthwaite Mather classificar clima município Palmas, Paraná. De acordo os resultados, verificou-se que balanço hídrico apresentou evapotranspiração real (ETR) potencial 774,98...

O objetivo desse trabalho foi investigar os efeitos do extrato de barbatimão nas propriedades físicas e estruturais filmes amido caseína. Foram analisados (A), caseína (AC), com (AB), (ACB). Os resultados indicaram que a espessura não se alterou, AB ACB são menos solúveis, 20,41 20,5 % solubilidade mais opacos sem barbatimão, 5,57 6,64, respectivamente. Com presença tornaram escuros amarelados. A análise morfológica pela microscopia eletrônica varredura (MEV) indicou o ásperos heterogêneos....

This study monitored a drip irrigation system with different hydraulic heads, using control charts. The included 25 tests, and was conducted at the Experimental Nucleus of Agricultural Engineering State University Western Paraná, located in municipality Cascavel, Paraná. operated by gravity, had four heads (10, 11, 12 15 kPa). uniformity determined based on distribution. Uniformity monitoring performed Shewhart exponentially weighted moving-average (EWMA) An increase head increased...

A utilização das telas coloridas visa uma melhor proteção contra a radiação solar. Este trabalho teve como objetivo avaliar influência de diferentes cores nas sombreamento no desenvolvimento da alface americana. O experimento foi conduzido município São João, Paraná. delineamento experimental em blocos casualizados (DBC) com 6 tratamentos e 4 repetições, sendo eles: T1: Testemunha (cultivo céu aberto), T2: Tela azul, T3: prata, T4: preta, T5: verde T6: vermelha. avaliado quanto ao peso raiz,...

A utilização de urina vaca pode ser considerada uma prática baixo custo para os produtores rurais do Sudoeste Paraná. Assim objetivou-se com este trabalho avaliar o efeito da sobre crescimento e produção mudas alface. O delineamento experimental utilizado foi em inteiramente casualizado, quatro repetições. Foram analisados efeitos sete concentrações (1,0; 2,0; 3,0; 4,0; 5,0; 6,0 7,0%) (v v-1). Nas condições sudoeste paranaense, melhor desenvolvimento alface obtido a aplicação concentração...

A colheita mecanizada de soja é fundamental no processo produtivo desta cultura e, caso não seja realizada adequadamente, poderá resultar em danos mecânicos severos aos grãos, acarretando prejuízos significativos na colheita. Essa preocupação com a também deve ser levada consideração campos experimentais, quando são utilizadas colhedoras parcelas. Objetivou-se neste trabalho avaliar as perdas ocorridas uma colhedora parcelas diferentes velocidades deslocamento. Avaliaram-se plataforma,...

The study of climatic conditions Paranavaí region is necessary due to its importance in the national agricultural scenario. aimed calculate climatological water balance (CWB) as well performing climate classification by method Thornthwaite e Mather for municipality Paranavaí, Paraná. Data from a historical series 1975 2018 were used. For calculation CWB was adopted value 100 mm available capacity (AWC). studied presentes na annual average 1523,8 precipitation and 1090,62 evapotranspiration....

Biquinho pepper has been gaining prominence on the national scene because of its sweet taste and low pungency. Therefore, this study aimed to describe phenological growth stages biquinho according BBCH scale. Based general scale, showed 9 10 principal (germination, leaf development, formation side shoots, shoot development harvestable vegetative parts plant, flowering, fruit coloring or ripening fruits senescence). In addition, 25 secondary have also described. The will act as a tool for...