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Mostrando ítems 21-40 de 43
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Methods to determine nitrogen in sunflower grains
(Asociación Argentina de la Ciencia del Suelo, 2021-12)In sunflower, grain oil concentration (OG) determines oil industrial yield and protein concentration (PG) determines the protein of by-products as pellets and meals (PM). There are various methodologies to quantify total ... -
Monitoring Corn Nitrogen Concentration from Radar (C-SAR), Optical, and Sensor Satellite Data Fusion
(Multidisciplinary Digital Publishing Institute (MDPI), 2023-02)Corn (Zea mays L.) nitrogen (N) management requires monitoring plant N concentration (Nc) with remote sensing tools to improve N use, increasing both profitability and sustainability. This work aims to predict the corn Nc ... -
Monitoring corn nitrogen nutrition index from optical and synthetic aperture radar satellite data and soil available nitrogen
(Springer, 2023-08)Nitrogen (N) nutrition index (NNI) is a reliable indicator of plant N status for field crops, but its determination is both labor- and cost-intensive. The utilization of remote sensing approaches for monitoring N, mainly ... -
N and S concentration and stoichiometry in soybean during vegetative growth: Dynamics of indices for diagnosing the S status
(Elsevier, 2016-11)Information regarding the pattern of sulphur (S) accumulation in shoots is scarce for field crops and few comprehensive analysis were performed on N:S stoichiometry. Particularly, the need to study the patterns of uptake, ... -
¿El Nan mejora el diagnóstico de nitrógeno en trigo?
(2013-06)El aporte de nitrógeno (N) por mineralización es una de las principales fuentes de N para los cultivos, particularmente en suelos con altos contenidos de materia orgánica (MO) (Echeverría y Ferrari, 1993). En general, el ... -
Nitrato en pecíolo e índice verde en estratos del canopeo del cultivo de papa
(Gerencia de Comunicación e Imagen Institucional, DNA SICC, INTA, 2012-08)La concentración de nitrato en los pecíolos (NBS) y el Índice Verde (IV) medidos en las hojas inferiores del canopeo de papa podrían usarse como alternativa de los métodos tradicionales de evaluación del estado nutricional ... -
Nitrogen balance for potato crops in the southeast pampas region, Argentina
(Springer, 2013-01)The aim of this work was to build an N mass balance for the potato crop under irrigation conditions in the southeast pampas (Argentina) as a function of N rate and gravitational water. The experiment was developed in a ... -
Nitrogen diagnosis for double-cropped maize
(Elsevier, 2022-10)Double cropping has been proposed as a strategy to promote ecological intensification. In temperate regions, maize (Zea mays L.) could be a viable option for double cropping. However, there is a lack of information regarding ... -
Nitrogen Recovery Efficiency from Urea Treated with NSN Co-Polymer Applied to No-Till Corn
(MDPI, 2018-08-19)Nitrogen (N) rate increases used by many farmers produce a reduced or null effect on N recovery efficiency (RE) by crops. Therefore, management practices to reduce N losses and increase RE are necessary. Co-polymer maleic ... -
Nitrógeno incubado en anaerobiosis y carbono orgánico en suelos agrícolas de buenos aires
(2014)El carbono orgánico (CO) y el nitrógeno (N) incubado en anaerobiosis (Nan) son indicadores de calidad del suelo. Además, el Nan es un estimador del aporte de N por mineralización, y ha sido empleado para el ajuste de la ... -
Patterns of resource use efficiency in relation to intra-specific competition, size of the trees and resource availability in ponderosa pine
(Elsevier, 2014-01-15)Patterns of resource use efficiency (RUE) in relation to intra-specific competition, size of the trees and resource availability are under debate. Also, the relationship between RUE and growth efficiency (GE) seems to be ... -
Persistence of tall fescue in a subtropical environment : tiller survival over summer in response to flowering control and nitrogen supply
(Wiley, 2016)Enhancing pasture persistence is crucial to achieve more sustainable grass-based animal production systems. Although it is known that persistence of perennial ryegrass is based on a high turnover of tillers during late ... -
Pérdidas de nitrógeno por volatilización y eficiencia de uso en maíz desde urea aplicada en diferentes momentos
(Ediciones INTA, 2023-06)La volatilización de amoníaco (N-NH3) es una importante vía de pérdida de nitrógeno (N) desde fertilizantes nitrogenados. En tal sentido, existe la necesidad de desarrollar estrategias de manejo que maximicen la eficiencia ... -
Producción de forraje de agropiro alargado en función de la disponibilidad de nitrógeno y la posición topográfica
(2017)El objetivo fue evaluar, en diferentes posiciones topográficas, el crecimiento de agropiro alargado (Thinopyrum ponticum [Podp.] Barkworth & D. R. Dewey Phil) bajo diferente disponibilidad de nitrógeno (N). Se seleccionaron ... -
Quantifying critical N dilution curves across G × E × M effects for potato using a partially-pooled Bayesian hierarchical method
(Elsevier, 2023-03)Multiple critical N dilution curves [CNDCs] have been previously developed for potato; however, attempts to directly compare differences in CNDCs across genotype [G], environment [E], and management [M] interactions have ... -
Revisiting the relationship between nitrogen nutrition index and yield across major species
(Elsevier, 2024-03)Crop nitrogen (N) fertilization diagnoses via the N nutrition index (NNI)-yield relationship have been tested for several crop species, but a cross-species comparison of that relationship has not been performed yet. This ... -
Shoot- and tuber-based critical nitrogen dilution curves for the prediction of the N status in potato
(Elsevier, 2020-09)Critical nitrogen (N) dilution curves describe the critical N concentration in plant tissues during crop growth and they are used to estimate the N nutriton status of whole plants in potato. Little is known, however, about ... -
Soybean shows an attenuated nitrogen dilution curve irrespective of maturity group and sowing date
(2016-02-01)It is generally accepted that the nitrogen (N) dilution curves relating shoot nitrogen concentration (%N) and shoot biomass (W) are similar among genotypes from the same species. However, differences in the pattern of ... -
Stover biogas potential of corn crops grown under contrasting water availability and nitrogen supply
(Elsevier, 2020-12-31)Corn stover is a biogas feedstock capable of enhancing agriculture bioenergy potential. Although the influence of growing conditions on biogas yield of corn stover has been reported, the joint effects of water and nitrogen ... -
Sulfur affects root growth and improves nitrogen recovery and internal efficiency in wheat
(2017)Wheat plants were cultivated in pots with the objective of evaluate the effect of two sulfurrates (+S and -S) on i) shoot growth, S and nitrogen uptake and nitrogen use efficiency(NUE) and ii) root growth and architecture ...