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Listar Agronomía Costarricense 38(2) por título 
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Listar Agronomía Costarricense 38(2) por título

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    • Agronomic evaluation of thirteen genotypes of sweet potato (Ipomoea batatas L.) 

      Castillo Matamoros, Rolbin Esteban; Brenes Angulo, Arturo; Esker, Paul D.; Gómez Alpízar, Luis (2014-12-01)
      The goal of this study was to determine the agronomic performance of 13 sweet potato genotypes for their cultivation in Costa Rica. Ten were introduced from North Carolina State University’s Micropropagation and Repository ...
    • Expected genetic gain and genotype- environment interaction in Acacia mangium in the northern region of Costa Rica 

      Pavlotzky, Benjamín; Murillo, Olman (2014-12-01)
      Two Acacia mangium Willd. progeny tests were evaluated, pursuing an increment in the profitability of commercial plantations. The 25 open-pollinated families were established in Los Chiles and San Carlos, northern region ...
    • Hypocalcemia and hipomagnesemia in a Holstein, Jersey and Guernsey grazing herd 

      Sánchez González, Jorge Manuel; Saborío Montero, Alejandro (2014-12-01)
      The aim of this study was to determine the prevalence of hypocalcemia and hypomagnesemia in a Holstein, Jersey and Guernsey cow herd at parturition, under the same feeding, management and environmental conditions. It was ...
    • In vitro evaluation of nematophagous fungi of Costa Rica rice-growing regions against the root-knot Meloidogyne javanica 

      Peraza Padilla, Walter; Orozco Aceves, Martha; Esquivel Hernández, Alejandro (2014-12-01)
      Parasitism in vitro of 14 isolates of nematophagous fungi (6 Trichoderma sp., 4 Paecilomyces sp., 2 Fusarium oxysporum and 2 Monacrosporium sp.) was evaluated againts juveniles and eggs of the root-knot nematode, Meloidogyne ...
    • Nutrient absorption curves in papaya (Carica papaya L.) cv. “Pococí” during vegetative growth, flowering and the beginning of the harvest period 

      Fallas Corrales, Róger Armando; Bertsch Hernández, Floria; Barrientos, Mauricio (2014-12-01)
      In a commercial papaya farm located at Guácimo, Costa Rica, the requirements of nutrients, and the nutrient absorption curves for the Costa Rican high-yielding papaya hybrid “Pococí”, were established. The experiment was ...
    • Prevalence of hypocalcemia in four grazing Jersey herds in Costa Rica 

      Sánchez González, Jorge Manuel; Saborío Montero, Alejandro (2014-12-01)
      Clinical hypo-calcemia (CH) is a common metabolic disease in cows grazing lush pastures high in potassium. The aim of this study was to determine the prevalence of CH and subclinical hypocalcemia (SH) in 4 grazing Jersey ...
    • The effect of the application of compost and nematicide on the dynamics of microorganism populations, soil phytoparasite nematodes and the root system health in the banana crop (Musa AAA) planted on domes 

      Araya, María; Tapia, Ana María; Mata Chinchilla, Rafael; Serrano Elizondo, Edgardo; Acuña Navarro, Oscar (2014-12-01)
      The effect of implementing 6 doses of compost plus a control, interacting with the nematicide application or non-application, on the dynamics of the soil microorganisms population (bacteria, fungi and actinomycetes), the ...
    • Watery rot of pseudo-stem (Dickeya sp.) management in banana (Musa sp.) under greenhouse conditions 

      Ramírez, Joaquín Guillermo; Jaraba, Abraham Benjamid; Buriticá, Pablo Elías (2014-12-01)
      This crop has serious constraints with diseases, including those caused by bacteria, such as Dickeya sp. This research aimed to evaluate the effect of 4 resistance inductors and 3 doses in Chlorine Dioxide in handling ...

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