English (United Kingdom)

https://curated-unify.zendy.io/wp-json/zendy-region/v1/featured_content/oa?rat=en

https://curated-unify.zendy.io/wp-json/zendy-region/v1/highlighted_journal/

Global: Zendy Plus annual

Presents the access of premium content as premium feature

Premium Content

Presents the keyphrase highlighting as premium feature

Keyphrase Highlighting

Presents the summarisation as premium feature

Summarisation

Insights

Presents the pdf analysis as premium feature

PDF Analysis

Presents the zaia usage as premium feature

ZAIA

Global: Zendy Tools annual

Global: Zendy Free Plan

Global: Zendy Tools monthly

Global: Zendy Plus monthly

AVALIACAO DE DIFERENTES MODELOS, VAZOES E ESPACAMENTOS DE GOTEJADORES NA IRRIGACAO DO MELOEIRO  Nildo Da Silva Dias1; Jose Francismar De Medeiros1; Marconi Batista Teixeira21Departamento de Engenharia Agricola, Escola Superior de Agricultura de Mossoro, Mossoro, RN2Departamento de Engenharia Agricola, Escola Superior de Agricultura Luiz de Queiroz, Universidade de Sao Paulo, Piracicaba, SP  1 RESUMO Com objetivo de avaliar os efeitos de diferentes modelos, vazoes e espacamentos de gotejadores novos e apos um ciclo cultural do meloeiro, no desenvolvimento da cultura do meloeiro, foi realizado um experimento na fazenda Sao Joao Ltda, Municipio de Mossoro-RN. O delineamento experimental foi o de blocos casualizados completos em parcelas subdivididas com tres repeticoes. Nas parcelas experimentais foram instaladas diferentes linhas de gotejador, cujos tratamentos foram identificados de acordo com o modelo, vazao e espacamento, respectivamente: katif 3,75 L h-1, 0,80 m – L1; katif 3,75 L h-1, 0,60 m - L2; katif 2,3 L h-1, 0,60 m – L3; katif 2,3 L h-1, 0,40 m – L4; Hydrodrip II 2,3 L h-1, 0,50 m – L5; Hydrodrip II 2,3 L h-1, 0,30 m – L6; Netafim ST-125 1,65 L h-1 0,50 m - L7; Chapin 15 Mil 1,12 L h-1, 0,30 m – L8; Queen gil 1,42 L h-1,0,30 m - L9. Nas subparcelas caracterizaram-se os tempos de determinacao: antes do cultivo – T1 e apos o primeiro cultivo – T2. Os resultados demonstraram que os valores medios de vazao aumentaram significativamente com o tempo de uso e que os valores medios dos coeficientes de variacao de vazao e uniformidade foram adequados para todas as linhas de gotejadores estudadas. UNITERMOS: Cucumis melo L., coeficiente de uniformidade de vazao, coeficiente de variacao  DIAS, N. da S; MEDEIROS, J. F. de; TEIXEIRA, M. B.  EVALUATION OF MODELS, FLOW RATES AND SPACING OF DRIP EMITTERS FOR MELON IRRIGATION  2 ABSTRACT An experiment was developed at Sao Joao Ltda farm in Mossoro-RN, Brazil, in order to evaluate models, spacing and flow rates of drip emitters used in melon culture irrigation. The experimental design had completely randomized blocks and drip lines that were settled with three replications and identified according to the model, flow rate and spacing, respectively: Katif 3.75 L h-1, 0.80 m – L1; Katif 3.75 L h-1, 0.60 m - L2; Katif 2.3 L h-1, 0.60 m – L3; Katif 2.3 L h-1, 0.40 m – L4; Hydrodrip II 2.3 L h-1, 0.50 m – L5; Hydrodrip II 2.3 L h-1, 0.30 m – L6; Netafim ST-125 1.65 L h-1 0.50 m - L7; Chapin 15 Mil 1.12 L h-1, 0.30 m – L8; and Queen gil 1.42 L h-1, 0.30 m - L9. Two periods were also evaluated: before melon plantation (T1) and after it (T2_). The results showed that the flow rate averages increased significantly overtime and flow rate variation coefficient and uniformity coefficient averages were appropriate for all drip lines studied. KEYWORDS: Cucumis melo L., uniformity coefficient, flow rate variation coefficient

AVALIAÇÃO DE DIFERENTES MODELOS, VAZÕES E ESPAÇAMENTOS DE GOTEJADORES NA IRRIGAÇÃO DO MELOEIRO