Arevalo Aranda, Yuri Gandhi

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Arevalo Aranda, Yuri Gandhi
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Arevalo Aranda, Yuri Gandhi
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Arévalo-Aranda, Yuri G.
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Universidad Peruana Unión
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  • Publicacion
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    Intermittent Rainfed Rice var. INIA 516 LM1: A Sustainable Alternative for the Huallaga River Basin
    (Multidisciplinary Digital Publishing Institute (MDPI), 2025-04-23)
    Flores-Marquez, Ricardo
    ;
    Bahia, Rita De Cássia S.
    ;
    Arevalo Aranda, Yuri Gandhi  
    ;
    Torres-Chávez, Edson E.
    ;
    Guevara Zumaeta, Jonathan Gabriel  
    Climate change is projected to increase global temperatures and alter rainfall patterns. In Peru, these changes could adversely affect the central basin of the Huallaga River by increasing pest and disease incidence, evapotranspiration, and water consumption. This basin is one of the country’s main rice-producing regions, where the crop is traditionally cultivated using inefficient practices, such as continuous flood irrigation. This study evaluated the effects of different irrigation management strategies on the growth and yield of rice (Oryza sativa var. INIA 516 LM1-La Unión 23), the water footprint as an indicator of water use efficiency, and the incidence of pests and diseases associated with irrigation regimes. Three irrigation treatments were implemented: Traditional flooding T1 (maintenance of a 0.15 m water layer with replenishment every 4 days), Optimized flooding T2 (replenishment every 7 days), and Intermittent rainfed irrigation T3 (replenishment every 14 days). Although no significant differences were observed in biometric parameters, yield, or pest and disease incidence, a trend of decreasing yield with longer irrigation intervals was noted: traditional flooding (7.91 t∙ha−1) > reduced flooding (7.82 t∙ha−1) > intermittent rainfed (7.14 t∙ha−1). The incidence of white leaf virus and Burkholderia glumae was highest in the intermittent rainfed treatment, followed by optimized flooding, with the lowest incidence in traditional flooding. Yield reduction and the use of rainwater to cover water requirements resulted in a lower total water footprint for traditional flooding (834.0 m3∙t−1), followed by optimized flooding (843.6 m3∙t−1) and intermittent rainfed (923.9 m3∙t−1). This reflects an improvement in rainwater use efficiency. The findings suggest intermittent rainfed irrigation enhances water use efficiency without significantly compromising rice yield or increasing disease incidence in rice var. INIA 516 LM1-La Unión 23 in the central basin of the Huallaga River.
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    Response of corn to the application of microbial consortium and its combination with biol, under dry tropic conditions
    (Universidad Autonoma de Yucatan, 2024-05-10)
    Díaz-Chuquizuta, Henry
    ;
    Díaz-Chuquizuta, Percy
    ;
    Arevalo Aranda, Yuri Gandhi  
    Background: The utilization of organic fertilizers is put forward as an effective approach to address soil degradation and enhance crop yields. Objective: To assess the impact of applying microbial consortia, in combination with fermented liquid fertilizer (biol), on maize grain production, with a focus on fostering sustainable family farming in dry tropical conditions. Methodology: A randomized complete block design with three blocks and divided plots was employed, with the main plots featuring various maize cultivars, while the subplots consisted of four bioferments and a control treatment. The bioferments included Microbial Consortium (CM), BIOL+CM, and BIOL+EM-1, compared to the commercial product Efficient Microorganisms (EM-1) and a control with no application. Parameters such as days to male and female flowering, plant and ear height, leaf area, grain diameter, and yield, along with the physical and chemical soil characteristics, were evaluated following the bioferment application. Results: The application of BIOL+CM to the Marginal 28T variety resulted in increased plant height (164.17 cm) and cob size (65.83 cm), as well as a larger leaf area (361.17 cm²). It also enhanced the grain yield of the Marginal 28T variety (3.42 tꞏha-1) and the HS-1 hybrid (3.02 tꞏha-1). Implications: The combined use of locally-sourced microbial consortia and Biol significantly improves the agronomic performance of hard yellow corn and aids in maintaining the soil's physical and chemical conditions, thereby promoting its enhancement. Conclusion: The Marginal 28T variety and the HS-1 hybrid exhibited a favorable response to the application of microbial consortia, particularly BIOL+CM, making it a viable option for family farming in dry tropical conditions.
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    Green manuring and fertilization on rice (Oryza sativa L.): A peruvian Amazon study
    (Universidad Nacional de Cuyo, 2024-12-02)
    Arevalo Aranda, Yuri Gandhi  
    ;
    Rodriguez Toribio, Elmer  
    ;
    Rosillo Cordova, Leodan  
    ;
    Díaz-Chuquizuta, Henry
    ;
    Torres-Chávez, Edson E.
    The study was conducted in Juan Guerra district, province and region of San Martin, Peru; it assessed two treatment sets: (1) nitrogen fertilizer dose (FN75, FN100); (2) green manure Crotalaria juncea (CroJ), Canavalia ensiformis (CanE), and without green manure. It was arranged in a split-plot design with four replications. During the experiment, we observed an important fluctuation in soil parameters. Notably, there was a decrease in soil carbon and nitrogen levels, likely attributed to microorganism metabolism. On the other hand, we observed that CanE significantly reduced the diseased tillers through “White Leaf Virus” (RHBV) by 2.82% compared to the control, and significant panicle fertility was achieved by CroJ (91.88%). No significant differences were obtained in yields during this first campaign; however, the highest reported yield was 8.36 t ha-1 with the CanE - FN100 treatment. Additionally, the nutritional quality of the rice was not affected by either green manuring or the application of chemical nitrogen fertilization. These findings allow deeper studies to consider strategic alternatives to reducing dependency on inorganic fertilizers among the poorest communities. Highlights: A reduced incidence of White Leaf Virus (RHBV) was observed with the use of green manures. Rice variety INIA 507 "La Conquista'' reached 8.36 t ha-1 under tropical climate conditions. Canavalia ensiformis accompanied by nitrogen fertilization produced the highest yield. Replacing 25% of chemical nitrogen fertilization with Canavalia or Crotalaria green manures did not significantly affect rice yield. Replacing chemical nitrogen fertilization with green manure did not affect the nutritional quality of rice.
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