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      Influencia de diferentes tipos de fertilizantes en indicadores morfoagronómicos del maní (Arachis hypogaea L.) Translated title: Influence of different types of fertilisers on morphoagronomic indicators of groundnut (Arachis hypogaea L.)

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          Abstract

          RESUMEN La investigación tiene como objetivo determinar la influencia de diferentes tipos de fertilizantes en indicadores morfoagronómicos del maní (Arachis hypogaea L.). Se realizó en la Finca “Elpidio Sosa”, del municipio Sagua La Grande, provincia Villa Clara, Cuba. Se empleó un diseño experimental de bloques al azar con el cultivar Crema VC - 504 y cuatro tratamientos: Control (sin aplicación), NPK (40-30-30 kg ha-1), Compost (8 t ha-1), EcoMic® (0,80 kg + 480 mL H2O por 10 kg de semilla). Los resultados mostraron que en el tratamiento NPK se obtuvieron los máximos valores de altura de la planta, producción de masa seca, número de semillas por planta, peso de frutos y de semillas por planta. Se demostró que la aplicación de NPK (40-30-30 kg ha-1) y de Compost (8 t ha-1) incidió favorablemente en los rendimientos agrícolas en frutos y semillas.

          Translated abstract

          ABSTRACT The research aims to determine the influence of different types of fertilisers on morphoagronomic indicators of groundnut (Arachis hypogaea L.). It was carried out at the “Elpidio Sosa” Farm, in Sagua La Grande municipality, Villa Clara province, Cuba. A randomized block experimental design was used with the Crema VC - 504 cultivar and four treatments: Control (no application), NPK (40-30-30 kg ha-1), Compost (8 t ha-1), EcoMic® (0.8 kg + 480 mL H2O per 10 kg of seed). The results showed that in the NPK treatment the maximum values of plant height, dry mass production, seed number per plant, pod and seed weight per plant were obtained. It was shown that the application of NPK (40-30-30 kg ha-1) and Compost (8 t ha-1) had a favorable impact on seed and pod yield.

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          Comparing individual means in the analysis of variance.

          J TUKEY (1949)
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            Nitrogen increases drought tolerance in maize seedlings.

            Drought and nitrogen availability are two important environmental factors that affect plant growth and the global distribution of plants. We examined the effect of nitrogen on PSII in the leaves of maize seedlings under drought stress using three nitrogen concentrations (0.5, 7.5 and 15mM) and three levels of water availability (normal conditions, mild drought and severe drought). Shoot fresh and dry weights and root fresh weight decreased with increasing drought conditions. In maize leaves subjected to drought stress, the chlorophyll a (Chl a) and chlorophyll b (Chl b) contents, net photosynthetic rate, transpiration rate, stomatal conductance, maximum chemical efficiency (Fv/Fm), and photochemical efficiency of PSII (ΦPSII) were significantly reduced. Moderate nitrogen supply relieved the drought stress and enhanced the photosynthetic capacity. Malondialdehyde, H2O2 and O2-• accumulated in maize leaves under drought stress. Superoxide dismutase and ascorbate peroxidase activities increased in maize leaves under mild drought stress, but were significantly reduced under severe drought stress. The NO3- content and nitrate reductase (NR) activity of maize leaves were significantly reduced under drought stress, while moderate nitrogen supply promoted the accumulation of NO3- and an increase in the nitrate reductase activity. The abscisic acid content increased significantly; this increase was positively correlated with the nitrogen concentration under drought stress. Together, these results indicate that moderate nitrogen supply increases plant resistance to drought stress, while high or low nitrogen concentrations increase the sensitivity of maize to drought stress. These findings are important for guiding the agricultural use of nitrogen fertilisers.
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              Effects of organic and inorganic fertilizers on growth, activity of nitrate reductase and chlorophyll contents of peanuts ( Arachis hypogaea L.)

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                Author and article information

                Journal
                rctu
                Revista Científica y Tecnológica UPSE (RCTU)
                RCTU
                Universidad Estatal Península de Santa Elena (La libertad, Santa Elena, Ecuador )
                1390-7638
                1390-7697
                December 2024
                : 11
                : 2
                : 121-129
                Affiliations
                [1] Santa Clara orgnameUniversidad Central “Marta Abreu” de Las Villas Cuba
                [2] Puyo Pastaza orgnameUniversidad Estatal Amazónica Ecuador
                [3] La Libertad orgnameUniversidad Estatal Península de Santa Elena Ecuador
                Author information
                https://orcid.org/0000-0002-0558-3028
                https://orcid.org/0000-0002-3829-7933
                https://orcid.org/0000-0001-7909-2128
                https://orcid.org/0000-0002-4489-1170
                https://orcid.org/0000-0003-4848-1360
                https://orcid.org/0000-0003-0791-166X
                Article
                S1390-76972024000200121 S1390-7697(24)01100200121
                10.26423/rctu.v11i2.849
                c7702a7d-0272-4a62-9c27-5742508bda04

                This work is licensed under a Creative Commons Attribution-NonCommercial 3.0 International License.

                History
                : 20 October 2024
                : 26 December 2024
                Page count
                Figures: 0, Tables: 0, Equations: 0, References: 25, Pages: 9
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                SciELO null


                soil.,yield,fertilisation,cultivation,growth,suelo.,rendimiento,fertilización,cultivo,crecimiento

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