Ingeniero Agronomo

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    RIEGO DEFICITARIO Y DENSIDAD DE SIEMBRA EN INDICADORES MORFOFISIOLÓGICOS Y PRODUCTIVOS DE HÍBRIDO DE MAÍZ
    (Ingeniero Agronomo, 2022) Tapia Chávez Richard Gabriel
    THE RAPID INCREASE IN THE WORLD'S POPULATION HAS MADE EFFICIENT USE OF WATER AN URGENT NECESSITY. THE OBJECTIVE OF THE RESEARCH WAS TO EVALUATE THE EFFECT OF DEFICIT IRRIGATION AND PLANTING DENSITY ON MORPHOPHYSIOLOGICAL AND PRODUCTIVE INDICATORS OF THE HYBRID PY 4039 CORN CROP WITH DRIP IRRIGATION. A BIFACTORIAL EXPERIMENT WAS DEVELOPED WITH A 4X3 ARRANGEMENT WITH 12 TREATMENTS, FOUR PERCENTAGES OF THE RAW SHEET CALCULATED WITH THE CROPWAT 8.0 SOFTWARE WERE EVALUATED. AND THREE PLANTING DENSITIES. AN EXPERIMENT WAS DEVELOPED IN DIVIDED PLOTS. IN THE MAIN PLOTS THE SHEETS WERE EVALUATED AT 120%, 100%, 90% AND 80% OF THE TOTAL GROSS SHEET AND IN THE SECONDARY PLOTS THE PLANTING DENSITIES OF 66,666, 50,000 AND 40,000 PLANTS HA-1. THE MORPHOPHYSIOLOGICAL VARIABLES MEASURED WERE PLANT HEIGHT, STEM DIAMETER, NUMBER OF LEAVES AND EAR INSERTION HEIGHT, AND THE PRODUCTIVE VARIABLES: AVERAGE GRAIN WEIGHT AND ESTIMATED YIELD. THE EFFICIENT USE OF WATER WAS ESTIMATED BY THE RELATIONSHIP BETWEEN THE CORN PRODUCTION OBTAINED AND THE VOLUME OF WATER CONSUMED. THE RESULTS WERE EVALUATED BY MEANS OF A BIFACTORIAL ANALYSIS OF VARIANCE, WITH THE STATISTICAL PROGRAM (STATGRAPHICS) STATISTICAL ANALYSIS SYSTEM. THE RESULTS OBTAINED SHOW THAT WITH AN IRRIGATION SHEET OF 376.31 MM AND A DENSITY OF 66 666 PLANTS, AN AVERAGE YIELD OF 13.49 T IS REACHED. HA-1, AND AN EFFICIENCY IN THE USE OF WATER OF 8.98 KG OF CORN PRODUCED PER M-3 OF APPLIED WATER
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    “Determinación de la entomofauna asociada al cultivo de maíz bajo diferentes tratamientos con insecticidas”
    (Ingeniero Agronomo, 2022) Landivar Sabando Oscar Andres ; Giler Solis Irvin Ivan
    MAIZE (ZEA MAYS L.) IS THE THIRD MOST CULTIVATED GRASS IN THE WORLD AFTER WHEAT AND RICE, CONSTITUTING IN ECUADOR THE MAIN TRANSITORY CROP OF IMPORTANCE. CORN CAN BE AFFECTED BY PEST ARTHROPODS SUCH AS APHIDS, THRIPS AND MITES, ALTERING ITS GROWTH, DEVELOPMENT, YIELD AND QUALITY OF THE FRUITS. DURING THE PERIOD SEPTEMBER-DECEMBER 2021, THE FIELD STUDY WAS CARRIED OUT IN THE PROVINCE OF MANABÍ, ECUADOR WITH THE OBJECTIVE OF DETERMINING THE ENTOMOFAUNA ASSOCIATED WITH CORN CULTIVATION UNDER DIFFERENT INSECTICIDE TREATMENTS. THE INSECTICIDE TREATMENTS EVALUATED WERE: ACEPHATE+CHLORPYRIFOS (1 CM3 L/HA), AZARIDACHTIN (2 CM3 L/HA), LAMBDACYALOTHRIN (5 G L/HA), BACILLUS THURINGIENSIS (2 CM3 L/HA), CHLORANTRANILIPROLE (1.5 L/HA) AND A CONTROL WITHOUT INSECTICIDES
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    “EVALUACIÓN DE LA PODA PRE-COSECHA EN LA PERECIBILIDAD DE LAS RAÍCES FRESCAS DE YUCA (Manihot esculenta Crantz) DE UN MATERIAL PROMISORIO DEL INIAP”
    (Ingeniero Agronomo, 2022) Moreira Alcivar Gema Jamileth ; Pico Moreira Cristina Marisol
    CASSAVA (MANIHOT ESCULENTA CRANTZ) IS A CROP OF GREAT INTEREST TO SMALL PRODUCERS IN THE PROVINCE OF MANABÍ, WIDELY USED IN GASTRONOMY FOR THE PRODUCTION OF FOOD PRODUCTS, SUCH AS: ENCEBOLLADO DE PESCADO, TORTILLAS, MUCHINES, AMONG OTHERS. HIGH STARCH CONTENTS ARE RELATED TO THE RAPID PHYSIOLOGICAL DETERIORATION OF THE CASSAVA ROOT, WHICH CAUSES A BLACKENING AND LOSS OF ROOT QUALITY. PRE-HARVEST PRUNING COULD REDUCE STARCH CONTENT IN THE ROOT. THE RESEARCH AIMED EVALUATE THE EFFECT OF THE INTENSITY AND PRUNING SEASON IN THE CASSAVA VARIETY INIAP PORTOVIEJO 652 "LA RENDIDORA", TO REDUCE THE STARCH CONTENT IN THE ROOT AND LENGTHEN THE USEFUL LIFE PERIOD WHEN FRESH. THE EXPERIMENT WAS CARRIED OUT DURING 2020, AT THE PORTOVIEJO EXPERIMENTAL STATION OF THE INIAP, LOCATED AT 01° 07' 62” S; 80° 24' 34” W AND 60 MSNM.
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    Identificación de la entomofauna presente en el cultivo de pimiento (Capsicum annuun L) en el sector Lodana del cantón Santa Ana, Ecuador
    ( 2022) Franco Ruiz Andrea Monserrate ; Veliz Prado Kimberly Andreina
    AGRICULTURE REPRESENTS THE ACTIVITY THAT GUARANTEES HUMANITY FOOD AND ECONOMIC SUSTENANCE AND ITS PRESERVATION AND CARE IS ESSENTIAL IN ALL PLANT SPECIES. THEREFORE, THE OBJECTIVE OF THIS STUDY WAS TO IDENTIFY THE MAIN INSECTS THAT AFFECT THE CULTIVATION OF PEPPER (CAPSICUM ANNUUM L.) IN THE EXPERIMENTAL CAMPUS "LA TEODOMIRA" CANTON SANTA ANA, ALLOWING THE RECOGNITION OF THE BENEFICIAL AND HARMFUL ENTOMOFAUNA ASSOCIATED WITH THE CROP. THE METHODOLOGY OF THIS STUDY CONSISTED OF THE CAPTURE AND IDENTIFICATION OF INSECTS IN THREE PLOTS TREATED UNDER DIFFERENT METHODS (CONVENTIONAL MANAGEMENT, INTEGRATED PEST MANAGEMENT (IPM), AND WITHOUT APPLICATION). FOR THIS PURPOSE, DIRECT (NETWORK PASS) AND INDIRECT (CHROMATIC TRAPS) EVALUATIONS WERE CARRIED OUT, FINDING FROM PHYTOPHAGOUS INSECTS, PREDATORS, PARASITOIDS AND POLLINATORS OF 61 SPECIES, ENCOMPASSED IN 32 FAMILIES AND 9 ORDERS, SINCE THE GREATEST DIVERSITY OF INSECTS IS OBSERVED IN THE PLOT WITHOUT APPLICATION (75.43%). IT IS WORTH MENTIONING THAT, IN THE ESTIMATION OF BIODIVERSITY, ACCORDING TO THE MARGALEF, SIMPSON AND SHANNON INDICES, THE PLOT WITHOUT APPLICATION STANDS OUT WITH AN INDEX OF 4.956, IN ADDITION TO 4.612 AND 4.267 IN THE PLOT WITH APPLICATION AND IPM, RESPECTIVELY.
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    EFECTO DE BIOESTIMULANTES SOBRE EL CRECIMIENTO EN CUATRO HÍBRIDOS DE PIMIENTO (Capsicum annuum L.)
    (Ingeniero Agronomo, 2022) Pico Alvarado Dayana Briggitte
    IN THE PEPPER (CAPSICUM ANNUUM L.), AS IN OTHER SPECIES CULTIVATED IN ECUADOR, SYNTHETIC CHEMICAL FERTILIZERS ARE APPLIED INDISCRIMINATELY. AN ALTERNATIVE THAT CAN REDUCE SOIL, WATER, AND ATMOSPHERE POLLUTION IS THE USE OF BIOSTIMULANTS. THE OBJECTIVE OF THIS RESEARCH WAS TO EVALUATE THE EFFECT OF BIOSTIMULANTS (BOVINE MANURE, VERMICOMPOST LEACHATES FROM BOVINE MANURE, EFFICIENT MICROORGANISMS) ON GROWTH VARIABLES (PLANT HEIGHT, STEM DIAMETER, NUMBER OF LEAVES) IN FOUR PEPPER HYBRIDS (QUETZAL, ODÍN, NATHALIE AND CANARIO) UNDER PROTECTED CULTIVATION AND LOCALIZED IRRIGATION CONDITIONS, BETWEEN 2017 AND 2019. A RANDOMIZED COMPLETE BLOCK DESIGN WITH THREE REPLICATES WAS USED IN EACH HYBRID. VARIABLES WERE MEASURED 60 DAYS AFTER TRANSPLANTATION. THE USE OF BIOSTIMULANTS INDUCED SIGNIFICANT DIFFERENCES IN THE VARIABLES EVALUATED. THE DIFFERENCES WERE EXPRESSED IN DEPENDENCE ON THE HYBRID, BUT IN ALL THE HYBRIDS AT LEAST ONE BIOSTIMULANT LED TO VALUES SIMILAR OR HIGHER THAN THOSE ACHIEVED WITH CHEMICAL FERTILIZATION BASED ON NITROGEN, PHOSPHORUS AND POTASSIUM (CONTROL).