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Nahuel Ignacio Reussi Calvo

Nahuel Ignacio Reussi Calvo
FERTILAB and CONICET · RESEARCH

Dr

About

68
Publications
20,907
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457
Citations
Citations since 2016
42 Research Items
378 Citations
2016201720182019202020212022020406080
2016201720182019202020212022020406080
2016201720182019202020212022020406080
2016201720182019202020212022020406080
Education
March 2006 - April 2009
Universidad Nacional de Mar del Plata
Field of study
  • Doctor en Ciencias Agrarias
March 2000 - April 2005
Universidad Nacional de Mar del Plata
Field of study
  • ingeniero agronomo

Publications

Publications (68)
Article
Calcium (Ca) deficiency could negatively affect potato (Solanum tuberosum L.) tuber yield and quality. Therefore, it is required to develop Ca diagnostic methods and assess the impact of Ca fertilization on tuber yield and quality (dry matter and starch concentration, resistance to mechanical damage, and sensory texture attributes such as firmness,...
Article
The malt industry has specific requirements for malting barley (Hordeum vulgare L.) grain protein concentration (from 9.5 to 13%) and size (> 85%), which could be affected by nitrogen (N) fertilization. We aimed to: (1) define and explain the economic optimum nitrogen rate (EONR) for grain yield in feed (EONRf) and malting barley (EONRm), and (2) a...
Article
Full-text available
Agricultural intensification decreased soil organic matter levels. Therefore, nitrogen (N) and sulfur (S) deficiencies are becoming more frequent, possibly limiting sunflower (Helianthus annuus L.) grain yield and quality. The aim of this work was to evaluate the effect of N and S fertilization on: 1) yield and its components, 2) protein and oil o...
Article
The conversion of native grasslands into croplands with a high frequency of soybean (Glycine max L.) in crop rotations has diminished soil organic carbon (SOC) stocks in the Argentinean Pampas. The aims of our study were to determine the amount of SOC lost due to cultivation (dSOC) and to assess the main factors (land use, climate, and soil propert...
Poster
Full-text available
The aims of this work was to quantify and characterize the spatial variability of P-Bray and generate variable P recommendations for a wheat crop.
Article
The objectives were to i) assess the effect of enhanced-efficiency nitrogen (N) fertilizers (EENF) [maleic itaconic acid copolymer (NSN) or 3,4-dimethylpyrazole phosphate (DMPP)] and urea on potato (Solanum tuberosum L.) tuber yield, N agronomic efficiency (NAE), N recovery efficiency in tuber (NREtuber) and plant (NREplant), N physiological effici...
Article
The most widely used approach for prescribing fertilizer nitrogen (N) recommendations in maize (Zea Mays L.) in Argentina is based on the relationship between grain yield and the available N (kg N ha − 1), calculated as the sum of pre-plant soil NO 3-N at 0− 60 cm depth (PPNT) plus fertilizer N (N f). However, combining covariates related to crop N...
Article
Cover crop species and termination date could affect fertilizer‐N management and N diagnostic methods traditionally used in bare fallow‐maize (Zea mays L.) systems. Our objectives were to (a) assess the impact of cover crop termination date on maize yield and response to fertilizer‐N, (b) determine maize yield at varying N rates following different...
Technical Report
Full-text available
Diagnóstico y monitoreo de nitrógeno en cereales de invierno.
Article
Nitrogen (N) deficiency can severely limits sunflower (Helianthus annuus L.) grain yield and quality. Our objective was to evaluate N diagnosis methods based on: (i) pre‐plant soil NO3–‐N test (PPSNT) and soil N mineralized in short‐term anaerobic incubation (Nan), (ii) Greenness index (GI) and the normalized difference vegetation index (NDVI) meas...
Article
Maize (Zea mays L.) is one of the most susceptible crops to zinc (Zn) deficiency. However, in much of the world, soil Zn tests are poorly calibrated, and thus determining a critical soil test, level for Zn is challenging. The objectives of this study were to: (i) produce a field calibration of the Zn Mehlich-3 (M3-Zn) method for predicting maize gr...
Article
Anaerobically mineralized nitrogen (AN) in bulk soil (ANBS) has been described as a soil health indicator. Considering that large macroaggregates (2000–8000 μm, MA) are more sensitive to management practices than the bulk soil (i.e. whole soil), AN within MA (ANMA) would be a better soil health indicator than ANBS. The aim of this study was to eval...
Technical Report
Full-text available
La soja es el cultivo más importante de los sistemas productivos de la Argentina con una superficie sembrada ~18-20 millones de hectáreas y una producción ~45-50 millones de toneladas. Esto implica que gran parte del área sembrada cada año en el país se encuentra bajo monocultivo de soja o en rotaciones donde la soja cumple un papel preponderante....
Article
The objectives were to calibrate the Soil Plant Analysis Development (SPAD) and Green Seeker (GS) as tools to determine the differential of the economic optimum nitrogen rate (dEONR) at different growth stages of barley and to evaluate if a single SPAD or GS calibration model can be used for two cereal crops: barley and spring wheat. Fourteen field...
Technical Report
Full-text available
En un contexto de producción agropecuaria cada vez más demandante, diagnosticar correctamente el estado nutricional de los cultivos, es condición necesaria para mejorar la eficiencia de utilización de los recursos e insumos involucrados en el sistema productivo. El manejo adecuado de la nutrición del cultivo de maíz constituye uno de los principale...
Article
Soil health status should be monitored to allow planning sustainable management, but indicators available do not encourage frequent soil health evaluation because of the complexity, time-consumption, and expensiveness of the methodologies. Aggregate stability (AS) is a good soil physical health indicator associated with soil (SOC) and particulate (...
Article
Nitrogen (N) and sulfur (S) critical dilution curves and the N:S stoichiometry are useful tools for evaluating nutrient status in maize (Zea mays L.). Nutrient supply for both N and S impact plant nutrient uptake, consequently influencing the overall performance of fertilization diagnostic tools. Interaction between these nutrients has not been stu...
Technical Report
Full-text available
El trigo es el cultivo de invierno más importante en los sistemas de producción de la región pampeana no solo por su nivel de producción sino también por el aporte de carbono que realiza a la rotación. El manejo adecuado de la nutrición constituye uno de los principales factores para maximizar la producción actual y mejorar la calidad de los granos...
Article
En regiones con excesos hídricos al comienzo de la estación de crecimiento, la aplicación de nitrógeno (N) en estadíos tempranos del maíz no es la mejor estrategia para maximizar la eficiencia de uso de dicho nutriente. El medidor de clorofila Minolta SPAD® 502 podría ser utilizado para monitorear el estatus nitrogenado y estimar el déficit o exces...
Conference Paper
Full-text available
El diagnóstico de la fertilidad de suelos y la recomendación de fertilización de cultivos contemplan diferentes etapas entre las que se destacan: 1- muestreo de suelo, 2- el análisis propiamente dicho y 3- la interpretación de los resultados (Barbazán y García, 2015). La primera de ellas resulta clave, dado que representa el primer paso dentro del...
Article
There is a lack of information on how to determine N-use efficiency and monitoring and diagnosing N losses in irrigated potato (Solanum tuberosum L.) production. This study was conducted to determine and validate a simple model to estimate inorganic N leaching losses (Nlosses) from gravitational water and to determine Nlosses thresholds using the s...
Article
The analysis of sulfur concentration (Sc) and nitrogen to S ratio (N/S) in plant tissue are some of the suggested tools to evaluate S deficiency in maize (Zea mays L.). However, the convenience of one over the other and the tissue that should be analyzed (upper leaf or shoot) is still questioned. Therefore, the objectives of our study were to: i) e...
Technical Report
Full-text available
El análisis de nitrógeno disponible-actual y potencial-en el suelo a la siembra es una herramienta clave para el diagnóstico del requerimiento de dicho nutriente. AGRICULTURA l nitrógeno (N) es el principal nutriente que afecta el rendi-miento y la calidad del grano de los cultivos de la región pampeana. En la actualidad, se estima que a nivel naci...
Article
Sulfur (S) deficiency can severely limit maize (Zea mays L.) yield. This deficiency could be predicted by quantifying the S concentration (SC) in the shoot biomass (BM) and by calculating the S nutrition index [SNI = observed SC/critical SC]. However, as shoot SC determination is laborious, alternative S diagnostic methods should be developed in ma...
Article
Full-text available
Sunflower (Helianthus annuus L.) conventional (CONV) and high oleic (HO) genotypes differ in yield and quality. Nitrogen affects grain yield, quality, and by-products protein concentration. The objective was to evaluate the effect of genotype and N on grain yield, oil (OG) and protein (PG) concentration in grain and in by-products (PM). The effect...
Article
The nitrogen (N) released after a 7-d anaerobic incubation (Nan) is a good estimator of the size of the soil N mineralizable pool. However, there is a lack of information on how soil properties and climate affect the apparent field N mineralization (Nmin) of this pool. The objective of our study was to develop and validate a simple model to estimat...
Article
Full-text available
The development of simple predictors of sulfur (S) mineralization and its correlation with field-derived data may help improving corn S availability diagnosis. The objectives of this study were (1) to compare methods to estimate soil S mineralization, (2) to develop a model to predict soil S mineralization from S mineralization indexes and edaphic...
Article
Full-text available
The nitrogen (N) released after a 7-d anaerobic incubation (Nan) is a good estimator of the size of the soil N mineralizable pool. However, there is a lack of information on how soil properties and climate affect the apparent field N mineralization (Nmin) of this pool. The objective of our study was to develop and validate a simple model to estimat...
Article
Full-text available
El nitrógeno (N) es el principal nutriente que afecta el rendi-miento y la calidad del grano de girasol. Es válido mencio-nar que el porcentaje de acei-te determina la calidad comercial de los granos mientras que la proteína es clave para los subproductos (pellets, harinas proteicas, etc.). En general, aplicaciones excesivas de nitrógeno producen r...
Article
Full-text available
Current zinc (Zn) diagnostic methods for corn (Zea mays L.) are often based on soil DTPA (diethylenetriamine-pentaacetic acid) extractable Zn (DTPA-Zn). However, calibration of the DTPA-Zn test may be influenced by other soil properties such as pH, organic matter (SOM) and available Bray-P (PBray-1). Our objective was to assess the contribution of...
Article
Full-text available
Different edaphic properties were evaluated to diagnose soil sulfur (S) availability for corn in 15 field experiments as follows: (a) soil sulfate (SO4−2-S) content at sowing at 0–20 cm and 0–60 cm depths [Sini(0–20) and Sini(0–60)]; (b) soil SO4−2-S content at V6 corn stage at 0–20 and 0–60 cm depths [SV6(0–20) and SV6(0–60)]; (c) potentially mine...
Article
Full-text available
Current N diagnostic methods for corn (Zea mays L.) are oft en based on the nitrate nitrogen (NO3⁻–N) concentration before planting (pre-plant nitrate test, PPNT) and nitrate nitrogen (NO3⁻–N) concentration at V6 stage (PSNT). These tests provide scant information on soil N mineralization during the growing season, which can supply a considerable p...
Technical Report
Full-text available
Abbreviations and notes: N = nitrogen. ARGENTINA N itrogen is the main nutrient that affects yield and seed quality of sunfl ower. Oil concentration determines the commercial quality of the seeds, while protein concentration is key to sunfl ower by-products. Increases of 1% in seed protein would generate increases of up to 5% in by-products. Nitrog...
Technical Report
Full-text available
Introducción: El azufre (S) es un elemento esencial para el crecimiento de las plantas. En los últimos años su deficiencia se ha expandido por varias regiones del mundo, incluida la Argentina (Echeverría et al., 2015), donde es el tercer nutriente limitante de los rendimientos luego del nitrógeno (N) y el fósforo (P). Algunas investigaciones han av...
Conference Paper
Full-text available
Adequate grain zinc (Zn) concentration is important because of its influence on human health. The Argentina Pampas region (APR) provides between 86% and 90% of total grain exports by the country. Soils of the Argentina Pampas region had high fertility under pristine condition but intensification of agriculture, increasing grain yields, and poor or...
Technical Report
Full-text available
V Vi is si ió ón n R Ru ur ra al l | 8 | Año XXII • Nº 109 l azufre (S) es un nutriente esencial para el crecimiento de las plantas, que durante años recibió poca atención desde el sector productivo, debido a que la disponibilidad en los suelos cubría los requerimientos de los cultivos. Sin embargo, en la actualidad, la deficien-cia de S se ha incr...
Article
Full-text available
Nitrogen (N) is the main nutrient limiting yield and industrial quality of barley (Hordeum vulgare L). Nitrogen split applications under humid environments should maximize N use efficiency (EUN). In southeastern Buenos Aires (SEB), the effect of split N rates on yield, EUN, protein percentage (PB) and N recovery efficiency in grain (ERNg) was evalu...
Technical Report
Full-text available
Introducción: El azufre (S) es un elemento esencial para el crecimiento vegetal. Durante años, el estudio de este nutriente recibió poca atención dado que su disponibilidad en el suelo y los aportes atmosféricos y/o en los agroquímicos permitían cubrir la demanda de los cultivos. Sin embargo, en la actualidad, parte de la superficie cultivada a niv...
Article
Full-text available
El nitrógeno (N) es el principal nutriente que limita el rendimiento y la calidad industrial de cebada (Hordeum vuggare L). El fraccionamiento del N en ambientes húmedos, permitiría maximizar la eficiencia de uso de N (EUN). El objetivo de este trabajo fue evaluar el efecto del fraccionamiento de N en el sudeste bonaerense (SEB) sobre el rendimient...
Article
Full-text available
Organic carbon (CO) and anaerobically incubated nitrogen (Nan) are soil quality indicators. In addition, Nan is an estimator of nitrogen (N) supplied by organic matter mineralization, and has been used to adjust crop N fertilization rates. The aims of this study were: 1) to survey and map total CO (COT) and Nan contents in cropped soils of Buenos A...
Conference Paper
Full-text available
Los suelos presentan distinta capacidad para aportar azufre (S) por mineralización, lo que genera la necesidad de contar con metodologías para estimarla. El objetivo del trabajo fue determinar la relación entre la producción de S-SO4-2 por mineralización (Smin) en incubaciones aeróbicas de suelos y el nitrógeno incubado en anaerobiosis (Nan). Se ev...
Article
Full-text available
Particulate soil organic carbon (POC) is sensitive to management changes, and a good soil health indicator. However, its determination is tedious and time consuming. Given POC changes represent most of total organic carbon (TOC) variation due to soil use, we hypothesized that POC can be estimated through the variation of TOC. Our objective was to e...
Conference Paper
Full-text available
Los suelos presentan distinta capacidad para aportar S por mineralización, hecho que lleva, entre otras causas, a una pobre relación entre el contenido de S-SO4-2 en el suelo a la siembra y la respuesta a la aplicación de S por parte del cultivo. Por este motivo surge la necesidad de contar con una metodología que pueda ser utilizada como indicador...
Article
Full-text available
In-season N applications to spring wheat (Triticum aestivum L.) may increase profits and improve N fertilizer accuracy. The objectives were to develop a calibration tool employing normalized difference vegetative index (NDVI) and SPAD 502 chlorophyll meter (SPAD) measurements for calculating the differential from the economic optimum N rate (dEONR)...
Article
Full-text available
Organic carbon (CO) and anaerobically incubated nitrogen (Nan) are soil quality indicators. In addition, Nan is an estimator of nitrogen (N) supplied by organic matter mineralization, and has been used to adjust crop N fertilization rates. The aims of this study were: 1) to survey and map total CO (COT) and Nan contents in cropped soils of Buenos A...
Article
Full-text available
Current wheat (Triticum aestivum L.) N fertility diagnosis models do not take into account organic N provided by mineralization. Anaerobically incubated N (Nan) could contribute to assess this N pool for crops. The aim of this research was to assess the Nan contribution to spring wheat yield without added N (GY(0N)), to grain N export (GNE), and to...
Article
Full-text available
A key aspect of any sulfur (S) availability indicator is its stability throughout the crop cycle. Nine experiments were conducted with the objective to evaluate the stability of the nitrogen (N):S ratio in aerial biomass (W) in spring wheat, and to define the critical curve of S dilution. As the crop cycle progressed, a decrease (P < 0.05) in total...
Article
Full-text available
Sulfur (S) availability indicators are necessary for rational fertilizer use. The goals were to assess the predictive capacity of: i) malate:sulfate ratio in leaf; ii) total nitrogen (N):S ratio in aerial biomass; and iii) total N:S ratio in grain. Six experiments were carried out in Argentina for two years. Between 90 and 100% of samples were corr...
Article
Full-text available
To diagnose sulfur (S) deficiency, methodologies based on soil sample analysis and simulation models have been used, all of which require determination of S availability. The objective was to evaluate the possibility of estimating sulfate concentration up to 60 cm deep, using values from soils 0–20 or 0–40 cm deep as predictive variables. A set of...
Article
Full-text available
The nitrogen and sulphur ratio (N:S) in plants is often used as a sulphur diagnostics tool in wheat. This ratio requires two different analyses results for its calculation, and thus involves two sources of analytical error. The objective of this work was to compare the accuracy and reliability of the Dumas dry combustion method for N and S determin...
Article
Full-text available
The nitrogen and sulphur ratio (N:S) in plants is often used as a sulphur diagnostics tool in wheat. This ratio requires two different analyses results for its calculation, and thus involves two sources of analytical error. The objective of this work was to compare the accuracy and reliability of the Dumas dry combustion method for N and S determin...
Article
Full-text available
Sulfur (S) availability indicators are necessary for a rational use of fertilizers. Experiments were carried out to evaluate the sensitivity and stability of nitrogen (N):S ratio in spring red wheat. Yield responses were determined in three replications over five experimental sites. Sulfur application did not increase N concentration in plant, wher...
Article
Full-text available
Wheat nitrogen fertilization at planting or tillering allows the achievement of high yields, but it does not necessarily considerate grain quality. Under adequate water availability, complementary nitrogen fertilization at booting stage is a promissory strategy to increase grain quality. The aim of this work was to determinate the probability of wa...
Article
Full-text available
Wheat nitrogen fertilization at planting or tillering allows the achievement of high yields, but it does not necessarily considerate grain quality. Under adequate water availability, complementary nitrogen fertilization at booting stage is a promissory strategy to increase grain quality. The aim of this work was to determinate the probability of wa...