Technical and economic viability of cowpea co-inoculated with Azospirillum brasilense and Bradyrhizobium spp. and nitrogen doses

ABSTRACT Biological nitrogen fixation efficiency can be increased by co-inoculation with Bradyrhizobium spp. and Azospirillum brasilense, allowing even greater uptake of water and nutrients, leading to higher yields and enabling the insertion of unusual crops, such as cowpea (Vigna unguiculata L. Walp.), in the agricultural production system in the Cerrado region of Brazil. Thus, this study aimed to evaluate the technical and economic viability of cowpea in the Cerrado region, as a function of N doses and co-inoculation of seeds with Azospirillum brasilense and Bradyrhizobium. The study was carried out in a no-tillage system in Selvíria, MS, Brazil. The experimental design was a randomized block design, with four repetitions, arranged in a 3 x 5 factorial scheme, corresponding to three types of inoculation (without inoculation - control, with two strains of Bradyrhizobium spp. SEMIA 6462 and SEMIA 6463 - the conventional inoculation of cowpea, and these two strains of Bradyrhizobium spp. plus A. brasilense strains Ab-V5 and Ab-V6); and five N doses (0, 20, 40, 80 and 160 kg ha-1), as urea, applied as topdressing. The following evaluations were performed: grain yield, total operating cost, effective operating cost, gross revenue, operating profit, profitability index, equilibrium price and equilibrium yield. Co-inoculation with A. brasilense increases cowpea grain yield, which makes cowpea production in the Cerrado region of Brazil technically and economically viable, without the need to apply N fertilizers in topdressing.

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Technical and economic viability of co-inoculation with Azospirillum brasilense in soybean cultivars in the Cerrado

Revista Brasileira de Engenharia Agrícola e Ambiental ◽

10.1590/1807-1929/agriambi.v22n1p51-56 ◽

2018 ◽

Vol 22 (1) ◽

pp. 51-56 ◽

Cited By ~ 12

Author(s):

Fernando S. Galindo ◽

Marcelo C. M. Teixeira Filho ◽

Salatier Buzetti ◽

Mariana G. Z. Ludkiewicz ◽

Poliana A. L. Rosa ◽

...

Keyword(s):

Nitrogen Fixation ◽

Grain Yield ◽

Biological Nitrogen Fixation ◽

Azospirillum Brasilense ◽

Block Design ◽

Economic Viability ◽

No Tillage ◽

Randomized Block Design ◽

Tillage System ◽

Biological Nitrogen

ABSTRACT Biological nitrogen fixation (BNF) efficiency can be increased by co-inoculation with bradyrhizobia and Azospirillum brasilense, allowing even greater uptake of water and nutrients, leading to higher yields. Thus, this study aimed to evaluate the technical and economic viability of soybean in the Cerrado, according to the cultivars and co-inoculation with Azospirillum brasilense. The experiment was conducted in Selvíria, MS, in no-tillage system, in Oxisol, arranged in a randomized block design in a 2 x 2 factorial scheme with two cultivars (‘Potência’ and ‘Valiosa’), with and without co-inoculation with Azospirillum brasilense in the seed. Co-inoculation with A. brasilense increases grain yield in the cultivars ‘Potência’ and ‘Valiosa’, being economically viable. However, using the cultivar ‘Potência’ co-inoculated led to the highest profitability.

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Technical and Economic Viability of Wheat with Forms of Application and Doses of Boron

Journal of Agricultural Science ◽

10.5539/jas.v10n4p306 ◽

2018 ◽

Vol 10 (4) ◽

pp. 306 ◽

Cited By ~ 1

Author(s):

Fernando S. Galindo ◽

Marcelo C. M. Teixeira Filho ◽

Salatiér Buzetti ◽

Eduardo H. M. Boleta ◽

Willian L. Rodrigues ◽

...

Keyword(s):

Experimental Design ◽

Block Design ◽

Leaf Tissue ◽

Economic Viability ◽

No Tillage ◽

Wheat Grain ◽

Economic Return ◽

Randomized Block Design ◽

Tillage System ◽

Irrigated Wheat

Boron is one of the most limiting micronutrients in grains production system in Brazil. In this way, the objective was to evaluate the effect of forms of application and doses of boron in irrigated wheat grain yield evaluating the economic terms in Cerrado region. The experiment was conducted in no-tillage system in an Oxisol with clay texture in Selvíria, MS, Brazil. The experimental design was a randomized block design with four replicates, arranged in a 4 × 3 factorial scheme: four doses of boron (0, 1, 2 and 4 kg ha-1) with boric acid source (B = 17%); and three apllication forms: a) in desiccation of the predecessor straw, together with herbicide; b) at the time of sowing, in soil along with the formulated fertilization seeding and c) via leaf tissue with the application of post emergent herbicide. The application of 2 kg ha-1 provides greater grain yields, but the highest economic return was obtained at the dose of 1 kg ha-1, with application in soil, ensuring profitability from production of irrigated wheat in the Cerrado.

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Does the nitrogen application associated with Azospirillum brasilense inoculation influence corn nutrition and yield?

Revista Brasileira de Engenharia Agrícola e Ambiental ◽

10.1590/1807-1929/agriambi.v23n1p53-59 ◽

2019 ◽

Vol 23 (1) ◽

pp. 53-59 ◽

Cited By ~ 3

Author(s):

Elton M. de Souza ◽

Fernando S. Galindo ◽

Marcelo C. M. Teixeira Filho ◽

Paulo R. T. da Silva ◽

Arthur C. dos Santos ◽

...

Keyword(s):

Grain Yield ◽

Azospirillum Brasilense ◽

Nutritional Value ◽

Block Design ◽

Brazilian Cerrado ◽

Nitrogen Application ◽

No Till ◽

Randomized Block Design ◽

Set Up ◽

Corn Grain

ABSTRACT The aim of this study was to investigate the synergistic effect between inoculation with Azospirillum brasilense and nitrogen application, thus enabling a higher efficiency of nitrogen fertilization, as evaluated by nutritional value, components production, and grain yield of irrigated corn. The experiment was conducted in Selvíria, MS, Brazil, under a no-till system, on an Oxisol in the Brazilian Cerrado. The experiment was set up in a randomized block design with four replications, in a 4 × 2 factorial arrangement: four patterns of nitrogen application [application of 30 kg ha-1 of N at sowing and 150 kg ha-1 as cover (30 + 150); 30 kg ha-1 of N at sowing, split into two applications of 75 kg ha-1 as cover (30 + 75 + 75); 180 kg ha-1 of N at sowing (180); and 150 kg ha-1 of N at sowing and 30 kg ha-1 as cover (150 + 30)]; with and without inoculation of the seeds with A. brasilense. The application of 30 kg ha-1 of N at sowing and a single application of 150 kg ha-1 or two applications of 75 kg ha-1 in topdressing, inoculated with Azospirillum brasilense provided better nutrition and development, with a positive reflection on irrigated corn grain yield in the Brazilian Cerrado.

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AGRONOMIC PERFORMANCE OF MAIZE UNDER Azospirillum brasilense INOCULATION AND TOP-DRESSING NITROGEN FERTILIZATION

Revista Brasileira de Milho e Sorgo ◽

10.18512/rbms2020v19e1185 ◽

2020 ◽

Vol 19 ◽

pp. 15

Author(s):

VINÍCIUS BALEIRO FERNANDES ◽

FABIO LUIZ CHECCHIO MINGOTTE ◽

ORLANDO FERREIRA MORELLO ◽

ANDERSON PRATES COELHO ◽

LEANDRO BORGES LEMOS

Keyword(s):

Grain Yield ◽

Nitrogen Fertilization ◽

Azospirillum Brasilense ◽

Block Design ◽

Nitrogen Fertilizers ◽

Agronomic Performance ◽

Positive Effects ◽

Viable Cells ◽

Randomized Block Design ◽

Pre Treatment

Maize inoculation with bacteria of the genus Azospirillum can reduce the consumption of nitrogen fertilizers to obtain maximum grain yield. In this context, the aim was to evaluate the effect of inoculation with Azospirillum brasilense associated with nitrogen fertilization on the maize agronomic performance. A randomized block design was used in a split-plot scheme with four replicates. Four inoculation managements with Azospirillum brasilense (T0 - control without inoculation; TC2 - seed box inoculation, 200x108 viable cells ha-1; TC3 - seed box inoculation, 400x108 viable cells ha-1; TS1 - previous inoculation of the seeds, 600x108 viable cells ha-1) associated with four top-dressing N doses (0, 60, 120 and 180 kg ha-1), applied at maize stage V6 by urea. Inoculation with Azospirillum brasilense associated with top-dressing nitrogen fertilization increases the number of grain rows per ear, number of grains per row, number of grains per ear and grain yield of maize, mainly due to its positive effects on plant nutrition. Managements with seed box inoculation with 400x108 viable cells per ha (TC3) and inoculation in seed pre-treatment (TS1) are the most recommended for maize.

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Spacing, population density and nitrogen fertilization in corn grown in an Oxisoil

Revista CERES ◽

10.1590/s0034-737x2014000300018 ◽

2014 ◽

Vol 61 (3) ◽

pp. 424-433 ◽

Cited By ~ 1

Author(s):

Maria do Carmo Lana ◽

Leandro Rampim ◽

Tatiane Ohland ◽

Fernando Fávero

Keyword(s):

Grain Yield ◽

Plant Density ◽

Block Design ◽

Leaf Nitrogen ◽

Leaf Nitrogen Content ◽

Randomized Block Design ◽

Plant Densities ◽

Tillage System ◽

Leaf N Content ◽

Nitrogen Rates

The objective of this study was to evaluate yield components, leaf nitrogen content and grain yield in corn as affected by row spacing, plant density and nitrogen topdressing. The experiment was conducted with the single-cross hybrid AG 8021, in the municipality of Toledo-PR, in an Oxisoil under no-tillage system, in the crop year 2005/ 2006. The experiment was arranged in a randomized block design and treatments in split-split-plots, with four replications. The two row spacings (0.45 and 0.90 m) were allocated in the main plots, the two plant densities (60,000 and 80,000 plants ha-1) were allocated in the subplots and the three nitrogen rates (80, 100, 120 and 140 kg ha-1 N) were allocated in the sub-subplots. Topdress nitrogen was applied using urea as N source. The rise of the plant population from 60,000 to 80,000 plants ha-1 and the application of topdress nitrogen resulted in increased production components. The application of topdress fertilization provided increase in leaf N content and grain yield for the spacings 0.45 m and 0.90 m. Yield was higher in the spacing 0.45 m than 0.90 m. Yield was higher with 60,000 plants than with 80,000 plants at 0.90 m, while at 0.45 m there was no difference in relation to the plant density.

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Corn and soybean yields as affected by cover crops and herbicide timing under no-tillage system

Planta Daninha ◽

10.1590/s0100-83582013000400020 ◽

2013 ◽

Vol 31 (4) ◽

pp. 939-946

Author(s):

P. Oliveira ◽

A.S. Nascente ◽

J. Kluthcouski ◽

T.A.P. Castro

Keyword(s):

Grain Yield ◽

Common Bean ◽

Cover Crops ◽

Cover Crop ◽

Block Design ◽

No Tillage ◽

Brachiaria Brizantha ◽

Grain Yields ◽

Randomized Block Design ◽

Tillage System

To achieve better results in the no-tillage system (NTS), it is important to properly manage the cover crop prior to planting by using herbicides, usually glyphosate. The effect of glyphosate on plant coverage is slow, and plants take a few days to die completely. Thus, when applying the herbicide on the same day of planting soybean or corn, cover crops are still alive and standing, causing initial shading on seedlings of the crop and delaying its establishment. Therefore, this study aimed to evaluate the effect of distinct cover crops and their timing of desiccation prior to planting soybean or corn, on crop yield and yield components. Two experiments were installed, one for soybean and another for corn. Each experiment consisted in combining three cover crops (Brachiaria brizantha, common bean or millet) chemically desiccated at two timings before planting the crop (15 or 0 days before planting) under no-tillage system (NTS). Experiments were installed in a completely randomized block design with five replications. Brachiaria brizantha produced the highest amount of biomass; common bean and millet as cover crops allowed higher soybean grain yields; herbicide application under common bean, millet and Brachiaria brizantha 15 days before planting soybean allowed higher crop grain yields; desiccation timing of common bean did not affect corn grain yield; Brachiaria brizantha should be desiccated 15 days before planting corn to allow maximum grain yield; when millet was used as a cover crop, glyphosate application at planting of corn allowed the highest grain yield.

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Effect of phosphorus applied as monoammonium phosphate-coated polymers in corn culture under no-tillage system

Semina Ciências Agrárias ◽

10.5433/1679-0359.2018v39n1p99 ◽

2018 ◽

Vol 39 (1) ◽

pp. 99

Author(s):

Ana Carolina Marostica Lino ◽

Salatiér Buzetti ◽

Marcelo Carvalho Minhoto Teixeira Filho ◽

Fernando Shintate Galindo ◽

Paulo Ricardo Maestrelo ◽

...

Keyword(s):

Grain Yield ◽

Block Design ◽

Quadratic Function ◽

Leaf Tissue ◽

No Tillage ◽

Monoammonium Phosphate ◽

Randomized Block Design ◽

Tillage System ◽

Essential Nutrient ◽

Cropping Seasons

The use of phosphate fertilizers as coated polymers reduces phosphorus losses that occur by adsorption of P to soil particles, thereby providing this essential nutrient for a longer period. The objective of this study was to evaluate the effect of phosphorus doses applied as conventional monoammonium phosphate or as coated polymers on corn grown in a clayey Oxisol, in the Cerrado region. The experiment was conducted in Selvíria - MS, located at 22°22? S and 51°22? W. The experiment was laid out in a randomized block design arranged as a 4 × 2 factorial, with four doses of P2O5 (0, 50, 100, and 150 kg ha-1) and two sources of phosphorus (monoammonium phosphate (MAP) and monoammonium phosphate coated polymers). The experiment was conducted under no-tillage system during the cropping seasons in 2008/09 and 2009/10. The MAP and MAP-coated sources did not differ in most of the yield components in either of the two seasons. We found a quadratic function adjustment for P doses up to 117 and 98 kg ha-1 of P2O5 for P concentration in leaf tissue and grain yield in the 2008/2009 crop, respectively. We also obtained a quadratic function adjustment for P rates for grain yield and number of plants, up to 118 and 113 kg ha-1 of P2O5, respectively, in the 2009/2010 harvest.

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AADUBAÇÃO NITROGENADA E INOCULAÇÃO COM Azospirillum brasilense EM CEVADA

Nativa ◽

10.31413/nativa.v6i1.4611 ◽

2018 ◽

Vol 6 (1) ◽

pp. 01 ◽

Cited By ~ 1

Author(s):

Gustavo Ribeiro Barzotto ◽

Sebastião Ferreira Lima ◽

Osvaldir Feliciano Santos ◽

Gabriel Luiz Piati ◽

Carlos Roberto Wassolowski

Keyword(s):

Hordeum Vulgare ◽

Grain Yield ◽

Nitrogen Fertilization ◽

Azospirillum Brasilense ◽

Block Design ◽

Dry Mass ◽

Plant Production ◽

Randomized Block Design ◽

Productivity Gain ◽

Barley Grains

A cevada constitui uma importante cultura no Brasil devido, principalmente, a utilização de seu grão na produção de cervejas. O objetivo deste trabalho foi avaliar os efeitos da adubação nitrogenada e da inoculação com Azospirillum brasilense em cevada. O experimento foi instalado em campo, utilizando o delineamento em blocos casualizados em esquema fatorial, sendo quatro doses de nitrogênio (0, 40, 80 e 120 kg ha-1) na presença ou ausência de inoculação de sementes com A. brasilense e três repetições. Foram avaliadas características de crescimento e massa seca de planta, componentes de produção, teor de N e produtividade de grãos. A maior produtividade de grãos foi alcançada com 66 kg ha-1 de N, sem a aplicação da bactéria. Concluiu-se que o uso de A. brasilense aumenta a produtividade de grãos de cevada na ausência da adubação nitrogenada, mas não suplanta o ganho de produtividade apenas com o uso do N em doses superiores. A severidade de B. sorokidiana foi favorecida com a aplicação de A. brasilense nas maiores doses de N. A inoculação com A. brasilense é uma alternativa viável para aumentar a produtividade de grãos de cevada, caso se opte pelo cultivo sem fertilização mineral nitrogenada.Palavra-chave: Hordeum vulgare, bactérias diazotróficas, malte. NITROGEN FERTILIZATION AND INOCULATION WITH AZOSPIRILLUM BRASILENSE IN BARLEY ABSTRACT:The barley is an important crop in Brazil, mainly due to the use of its grain in the production of beers. The objective of this work was to evaluate the effects of nitrogen fertilization and inoculation with Azospirillum brasilense on barley. The experiment was carried out in the field, using a randomized block design in a factorial scheme, with four nitrogen doses (0, 40, 80 and 120 kg ha-1) in the presence or absence of seed inoculation with A. brasilense and three replications. Growth characteristics and dry mass of the plant, production components, N content and grain yield were evaluated. The highest grain yield was achieved with 66 kg ha-1 of N, without application of the bacteria. It was concluded that the use of A. brasilense increases the yield of barley grains in the absence of nitrogen fertilization, but does not supplant the productivity gain only with the use of N in higher doses. The B. sorokidiana severity was favored by the application of A. brasilense in the highest N doses. The inoculation with A. brasilense is a viable alternative to increase the yield of barley grains, in case of cultivation without nitrogen fertilization.Keywords: Hordeum vulgare, diazotrophic bacteria, malt. DOI:

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Azospirillum Brasilense And Zinc Rates Affecting Fungal Root Colonization and Yield of Cereal Crops in Succession Under Brazilian Cerrado Conditions

10.21203/rs.3.rs-897135/v1 ◽

2021 ◽

Author(s):

Philippe Solano Toledo Silva ◽

Ana Maria Rodrigues Cassiolato ◽

Fernando Shintate Galindo ◽

Arshad Jalal ◽

Thiago Assis Rodrigues Nogueira ◽

...

Keyword(s):

Grain Yield ◽

Mycorrhizal Fungi ◽

Azospirillum Brasilense ◽

Root Colonization ◽

Block Design ◽

Wheat Yield ◽

Arbuscular Mycorrhizal ◽

Symbiotic Association ◽

Brazilian Cerrado ◽

Randomized Block Design

Abstract Soil and plant beneficial microbes capitalize plant nutrition through successful colonization in roots rhizosphere which could sustainably increase cereal production. Zinc (Zn) is intensively reported a deficient nutrient for maize and wheat production in Brazilian Cerrado, which could be sustainably managed by beneficial microorganisms and their symbiotic association with other microorganisms like arbuscular mycorrhizal fungi (AMF) and dark septate endophytes (DSE). The objective of this study was to evaluate the effect of Azospirillum brasilense inoculation and residual Zn rates on root colonization and grain yield of maize and wheat in succession under Brazilian Cerrado conditions. These experiments were conducted in a randomized block design with four replications and arranged in a 5x2 factorial scheme. The treatments were consisted of five Zn rates (0, 2, 4, 6 and 8 kg ha-1) applied from zinc sulfate in maize and residual on wheat, and without and with seed inoculation of A. brasilense. Both crops were evaluated for root colonization of AMF and DSE, number of spores of AMF, quantification of CO2-C and grain yield. Colonization by AMF and DSE were significantly increased with interaction of Zn rates and inoculation treatments. The inoculation of A. brasilense favored root AMF and DSE colonization while increasing Zn rates by 4 kg ha-1 for maize and while 2 and 4 kg ha-1 Zn in residual for wheat reduced these colonizations. The inoculation did not influence spore production and CO2-C in both crops while maize-wheat yield were increased with Zn rates up to 4 kg ha-1 in edaphoclimatic condition of Brazilian Cerrado.

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Path Analysis in Soybean Cultivars Grown under Foliar Spraying and Furrow Inoculation with Azospirillum brasilense

Journal of Agricultural Science ◽

10.5539/jas.v9n10p137 ◽

2017 ◽

Vol 9 (10) ◽

pp. 137

Author(s):

Alan Mario Zuffo ◽

Joacir Mario Zuffo Júnior ◽

Wéverson Lima Fonseca ◽

Everton Vinicius Zambiazzi ◽

Augusto Matias de Oliveira ◽

...

Keyword(s):

Experimental Design ◽

Grain Yield ◽

Path Analysis ◽

Plant Height ◽

Azospirillum Brasilense ◽

Block Design ◽

Soybean Plant ◽

Randomized Block Design ◽

Established Plant ◽

Part Plant

The objective of this study was to evaluate, through path analysis, the influence of agronomic characters as a function of foliar spraying and furrow inoculation by Azospirillum brasilense on soybean yield. Two experiments were conducted in the crop years of 2013/14 and 2014/15, grown in Lavras, Minas Gerais. In the first experiment, the experimental design was a randomized block in a factorial 4 × 6, four cultivars (Anta 82 RR®, BRS Favorita RR®, BRS 780 RR®, BRS 820 RR®) and six doses of A. brasilense (0, 300, 400, 500, 600, 700 mL ha-1), with three replications. In the second experiment, the experimental design was a randomized block design, arranged in a 4 × 2 factorial scheme, four cultivars (Anta 82 RR®, BRS Favorita RR®, BRS 780 RR®, BRS 820 RR®) and two treatments with A. brasilense (inoculated and non-inoculated) with three replications. For both experiments, it was established plant height, phytomass of the aerial part, plant height at harvest, first legume insertion, number of legumes, number of grains per legume, mass of one thousand grains and grain yield. In the study with foliar spraying of soybean with A. brasilense, plant height at harvest was the only variable that had a direct effect on soybean grain yield. As such, in the study with furrow inoculation of A. brasilense in soybean, plant height at harvest and number of vegetables were the variables with the greatest direct effects on soybean grain yield.

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