Resultados de búsqueda - "field experiment"

Effect of intercropping oats with alfalfa on dry matter yield, nutritive value, in vitro ruminal fermentation kinetics and silage quality por Wana, Daniel

“…However, there is limited knowledge on the ideal planting density for oats and alfalfa when intercropped to achieve a mixture of high nutritional quality for use as animal feed. A field experiment was carried out to study the effect of seed ratio on yield components (total dry matter and seed), nutritional value (CP, OM, NDF, ADF, ADL and Ash), in vitro fermentation kinetics (gas production, short chain fatty acids), silage quality (physical and chemical properties) and soil improvement (PH, OC, OM, EC, CEC, TN, K, P) of oats and alfalfa grown in the pure stand and intercropping system. …”
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Bottom-up effect of nitrogen fertilization on the density of the corn leafhopper and its impact on both disease incidence and natural parasitism por Virla, Eduardo Gabriel, Luft Albarracín, Erica B., Díaz, Cecilia, Van Nieuwenhove, Guido Alejandro, Fernandez, Franco Daniel, Coll Aráoz, María Victoria, Melchert, Nicolás A., Conci, Luis Rogelio, Gimenez, Maria De La Paz

“…Modern agriculture is dependent on the addition of fertilizers, especially nitrogen, which may influence the nutritional quality and/or the defense ability of the plants possibly with a subsequent increment of herbivorous insect populations. Through a field experiment, using a randomized design with four treatments with incremental levels of fertilization, we evaluated the effects of nitrogen in corn on the population level of the vector D. maidis, on the incidence of the diseases transmitted by it, and on the level of parasitism of the vectors’ eggs. …”
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Efecto de distintas fuentes de fósforo y su interacción con nitógeno sobre el rendimiento y calidad de trigo por Fernandez, Romina, Martín, Christian, Quiroga, Alberto Raul

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Is the Direct Soil Application of Two-Phase Olive Mill Waste (Alperujo) Compatible with Soil Quality Protection? por García-Randez, Ana, Marks, Evan A.N., Pérez-Murcia, María Dolores, Orden, Luciano, Andreu-Rodríguez, Francisco Javier, Martínez-Sabater, Encarnación, Cháfer, María Teresa, Moral, Raúl

“…In order to validate this circular economy fertilization and soil protection strategy, an 18-month field experiment was undertaken, applying moderate quantities of alperujo on permanent crop groves throughout the Spanish region of Valencia. …”
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Breeding for increased grains/m2 in wheat crops through targeting critical period duration : a review por Fischer, Tony, Gonzalez, Fernanda Gabriela, Miralles, Daniel Julio

“…Ds responses can be related to the major photoperiod sensitivity alleles present. A field experiment with a unique reduced photoperiod treatment demonstrated a strong positive effect on Ds, fertile florets and GN, especially in the fully recessive photoperiod-sensitive isoline. …”
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Density-dependent and density-independent effects on outbreak dynamics in an invasive forest insect por Villacide, Jose Maria, Liebhold, Andrew M., Cavigliasso, Pablo, Corley, Juan Carlos

“…To test this, we conducted a field experiment in an invaded region, where host susceptibility was manipulated using herbicide-induced stress, and local population density was assessed by selecting plantations with contrasting wasp densities. …”
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Long-term effect of tillage systems on soil microbiological, chemical and physical parameters and the incidence of charcoal rot by Macrophomina phaseolina (Tassi) Goid in soybean por Perez Brandan, Carolina, Arzeno, Jose Luis, Huidobro, Dina Jorgelina, Grumberg, Betiana Clarisa, Conforto, Erica Cinthia, Hilton, Sally, Bending, Gary D., Meriles, Jose Manuel, Vargas Gil, Silvina

“…A 20-year field experiment was employed with the aim of evaluating the effect of tillage systems on biological, chemical and physical aspects of the soil, and to establish whether there was a correlation of these parameters with the incidence of charcoal rot (Macrophomina phaseolina) of soybean and crop yield. …”
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Invasión de Hieracium pilosella L. en pastizales de Tierra del Fuego por Rauber, Ruth Bibiana

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Evaluación morfológica de la rebrotación de plantas de cebolla (cv. Valcatorce INTA) para la producción de semillas por Gaviola, Julio Cesar, Planchuelo, A.M., Oliva, Ruben Nestor

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Physiological responses of cowpea (Vigna unguiculata L. Walp) varieties to Rhizobia inoculation, phosphorus application and sequential cropping system in Minna, Nigeria por Adediran, O.A.

“…A glasshouse and two field experiments were conducted between 2015 and 2017. …”
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Harnessing the potential of selected bio-agents for sustainable management of plant parasitic nematodes in coffee por Anyango, O.C.

“…Two biocontrol agents, Trichoderma asperellum and Purpureocilium lilacinum, were tested in the field experiment. The recommended dose for other annual crops, 2 × 107 spores/ml, was applied in seven fields, each with three treatments and four replicates, spanning for two years. …”
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Development of a soil quality index for sequences with different levels of land occupation using soil chemical, physical and microbiological properties por Serri, Dannae Lilia, Perez Brandan, Carolina, Meriles, Jose Manuel, Salvagiotti, Fernando, Bacigaluppo, Silvina, Malmantile, Alberto, Vargas Gil, Silvina

“…Our objectives were: 1) to evaluate the effect of crops sequences on soil chemical, physical and microbial parameters, and 2) to develop a soil quality index (SQI) from a minimum set of indicators for cropping sequences with different levels of land occupation. A long field experiment under no-tillage was established in 2006, where soil samples were collected during three agricultural seasons (2015, 2016, and 2017). …”
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Uso de efluentes líquidos de tambo para mejorar la fertilidad del suelo y productividad de los cultivos por Gambaudo, Sebastian, Imhoff, Silvia, Carrizo, María Eugenia, Marzetti, Martín, Racca, Sofía

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Depth distribution of soil, glyphosate, and aminomethylphosphonic acid (AMPA) properties and analysis of crop yield in six long-term experiments por Aparicio, Virginia Carolina, De Geronimo, Eduardo, Frolla, Franco Daniel, Domínguez, Germán, Galarza, Carlos Martin, Barbagelata, Pedro Anibal, Irizar, Alicia Beatriz, Costa, José Luis, Cerda, Artemio

“…Methods: In winter/spring 2015, three undisturbed soil sub-samples were collected from the top 20 cm of depth in 6 field experiments with a minimum duration of 15 years and mollic epipedon. …”
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Effect of Grasses on Native Tree Seedling Establishment Along a Water Stress Gradient: Results of Forest and Greenhouse Experiments por Trinco, Fabio Daniel, Rusch, Veronica Elena, Cardozo, Andrea, Garibaldi, Lucas Alejandro, Tittonell, Pablo Adrian

“…This study aims to evaluate the impact of grass cover on tree seedling survival under varying levels of soil water stress. We conducted a field experiment using 36 experimental exclosures in two northwest Patagonian valleys, representing a regional gradient in altitude, rainfall, and tree canopy openness. …”
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Efecto de la infección natural de Phoma oleracea var. helianthi-tuberosi Sacc. sobre algunos caracteres agronómicos y el rendimiento de aceite de cuatro genotipos de girasol (Helia... por Velazquez, Pablo Daniel, Formento, Angela Norma

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Environmental effects on seed yield determination of irrigated peanut crops: links with radiation use efficiency and crop growth rate por Haro Juarez, Ricardo Javier, Otegui, María Elena, Collino, Daniel, Dardanelli, Julio Luis

“…An additional field experiment was performed with widely spaced plants (i.e. with no interference among them) to evaluate the effect of peg removal on RUE and leaf carbon exchange rate (CER). …”
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Ny teknik för kombisådd por Nilsson, Staffan, Nilsson, Tobias

“…An overview of the literature on combi-drilling in Sweden 2. A practical field experiment in which we used Tume Nova Combi and Väderstad Rapid to combi-drill malting barley. …”
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Djup icke vändande bearbetning i sockerbetsodling por Yngwe, Johan

“…A field experiment was carried out in 2006 to investigate the effects of deep rotary cultivation on sugarbeet growth. …”
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Tidiga tillväxteffekter av kvävetillförsel på SeedPAD och plantor por Kollberg, Elin

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