scholarly journals Forage yield of Coastcross-1 pastures inoculated with Azospirillum brasilense

2017 ◽  
Vol 40 ◽  
pp. 36392 ◽  
Author(s):  
Priscila Flôres Aguirre ◽  
Clair Jorge Olivo ◽  
Patricia Fernandes Rodrigues ◽  
Débora Ribeiro Falk ◽  
Carine Beatriz Adams ◽  
...  
Keyword(s):  
Azospirillum Brasilense ◽  
Accumulation Rate ◽  
Block Design ◽  
Forage Yield ◽  
Nitrogen Fertilizers ◽  
First Year ◽  
Plant Growth Promoting Bacteria ◽  
Randomized Block Design ◽  
Plant Growth Promoting ◽  
Second Year

 The high cost of nitrogen fertilizers increases the expenses in pasture-based animal production. The inoculation with plant growth-promoting bacteria is an alternative to reduce the costs. This study evaluated the forage yield of Coastcross-1 pastures inoculated with Azospirillum brasilense, fertilized with different levels of nitrogen and subjected to cuts. The experiment was a factorial randomized block design with three replications. The factors were the inoculation (without inoculation, inoculated only at planting and reinoculated in the second year), levels of nitrogen (0, 100 and 200 kg ha-1 year-1 N) and seasons (spring, summer, fall and winter) when cuts were made. Forage yield, forage accumulation rate, botanical and structural pasture composition were evaluated. Forage yield without nitrogen fertilizer in pastures was in the first year 9.1, 11.7 and 11.7 t ha-1 DM, and in the second year 8.6, 11.2 and 11.5 t ha-1 DM, for the factor inoculation, respectively. The forage yield rises with inoculation at pasture planting, without nitrogen fertilization. Reinoculation is not necessary. 

scholarly journals Response of dual-purpose wheat to nitrogen fertilization and seed inoculation with Azospirillum brasilense

2019 ◽  
Vol 43 ◽  
Author(s):  
Mauricio Pase Quatrin ◽  
Clair Jorge Olivo ◽  
Gabriela Descovi Simonetti ◽  
Vinicius Felipe Bratz ◽  
Guilherme Librelotto de Godoy ◽  
...  
Keyword(s):  
Grain Yield ◽  
Azospirillum Brasilense ◽  
Block Design ◽  
Forage Yield ◽  
Nitrogen Fertilizers ◽  
Leaf Biomass ◽  
Plant Growth Promoting Bacteria ◽  
Dual Purpose ◽  
Straw Yield ◽  
Nitrogen Rates

ABSTRACT The use of inoculants containing plant growth-promoting bacteria is an alternative to increase the efficiency of nitrogen fertilizers. Studies evaluating the effects of inoculation on forage yield, straw yield, and grain yield in dual-purpose wheat cultivars are scarce. This study aimed to evaluate the forage yield and grain yield in dual-purpose wheat inoculated with Azospirillum brasilense and fertilized with increasing nitrogen rates during two agricultural years (2016-2017) under cutting management. The trial was carried out in a completely randomized block design with four replicates, using a 2 x 4 factorial arrangement. The factors were the inoculation (control or A. brasilense) and nitrogen rates (0, 50, 100 and 150 kg ha-1 of N). Forage, grain and straw yield, and number of tillers were evaluated. Forage yield differed between treatments with inoculation and without inoculation, 3952 and 3350 kg DM ha-1, respectively. There was no effect of inoculation on grain yield. The forage and leaf biomass yield, the number of tillers and straw yield increased with inoculation.

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

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.

scholarly journals El crecimiento y rendimiento del frijol común (Phaseolus vulgaris L.) como cultivo intercalado con café (Coffea arabica L.).

2016 ◽  
Vol 6 ◽  
pp. 134 ◽  
Author(s):  
Moisés Blaco ◽  
C. Corrales ◽  
O. Chevez ◽  
A. Campos
Keyword(s):  
Phaseolus Vulgaris ◽  
Coffea Arabica ◽  
Block Design ◽  
Growth And Yield ◽  
First Year ◽  
Phaseolus Vulgaris L ◽  
Randomized Block Design ◽  
The Common ◽  
Second Year ◽  
Coffea Arabica L

This article summarizes the results of two trials conducted, in 1991 and 1992, at the Centro Experimental de Café del Pacífico Central-Jardín Botánico, Masatepe, Nicaragua. The main objective was to study the growth and yield behavior of the common bean (Phaseolus vulgaris L.- Rev-81 cultivar) intercropped with coffee (Coffea arabica L.- five years old Catuaí cultivar). A Complete Randomized Block design with two treatments and four replications was used. The treatments were: Bean at First (June to August) and Bean at Last (September to November). Plant height was 43 cm and 47 cm, number of pods per plant was 7 and 4, and weight of 1000 seeds was 21 g and 28 g for the first and second year, respectively. The yield was higher in the first year (710 kg/ha) than in the secondyear (406 kg/ha). In both years there were larger values, for all the assayed variables, in the first cyc1e that in the last cyc1e.

Effect of Bacterial Inoculation and Different Phosphorus Doses on Yield Components and Yield of Chickpea (Cicer arietinum L.)

2019 ◽  
Author(s):  
N Bildirici
Keyword(s):  
Grain Yield ◽  
Cicer Arietinum ◽  
Yield Components ◽  
Block Design ◽  
First Year ◽  
Cicer Arietinum L ◽  
Randomized Block Design ◽  
Affected Plant ◽  
Second Year ◽  
Number Of Branches

This research was carried out in 2014-15 to determine yield and yield components of Azkan chickpea (Cicer arietinum L.) varieties with four different phosphorus doses and rhizobium bacteria in Van-Gevaº ecological conditions. The experiment was established as a randomized block design with three replications. The results of the research indicated that inoculation and phosphorus doses affected plant height, height of first pods, number of branches per plant, number of pods per plant, number of grain per plant and grain yield significantly. Grain yield averages ranged between 1556.10-1682.30 kg ha-1 in the first year and 1628.90-1677.30 kg ha-1 in the second year. When the results of inoculation and phosphorus doses were examined, the highest grain yield in both the years (1894.90-1867.70 kg ha-1, respectively) was obtained with 80 kg ha-1 phosphorus doses applied to inoculated plots. Increases in inoculation and phosphorus doses increased the grain yield.

scholarly journals Performance of Centrocema grown on mercury-contaminated tailing inoculated with beneficial bacteria: Preliminary study

2021 ◽  
Vol 882 (1) ◽  
pp. 012061
Author(s):  
R Hindersah ◽  
Y Sunarya ◽  
M Arifin ◽  
R Priyadi
Keyword(s):  
Plant Growth ◽  
Cover Crops ◽  
Block Design ◽  
Control Treatment ◽  
Plant Growth Promoting Bacteria ◽  
Gold Mine ◽  
Phosphate Solubilizing Bacteria ◽  
Randomized Block Design ◽  
Gold Mine Tailings ◽  
Plant Growth Promoting

Abstract Low levels of major essential nutrients and high mercury (Hg) content in gold mine tailings can inhibit plant growth. An inexpensive and effective strategy to overcome these obstacles was inoculation of plant-growth promoting bacteria and planting legume cover crops (LCC). A greenhouse experiment was conducted to evaluate the effect of isolates of Nitrogen Fixing Bacteria (NFB) and Phosphate Solubilizing Bacteria (PSB) on some growth characteristics of LCC Censtrosema pubescens (butterfly pea) grown in Hg-contaminated tailing of gold mine tailing. Moreover, the research was aimed to verify the viability of two bacterial groups in tailing after inoculation. The experiment was set up in randomized block design to test single and mixed inoculation of NFB and PSB. The experiment verified that the single inoculation and mixture of two bacteria did not change plant properties compared to the control treatment. Although the statistical analysis was not significant, there were slightly increase in root length as well as NFB and PSB populations of inoculated plants.

scholarly journals Induction of Senescence and Foliar Abscission in Apple Trees with the Use of Abscisic Acid

2019 ◽  
pp. 1-10
Author(s):  
Caroline De Fátima Esperança ◽  
José Luiz Petri ◽  
Andrea De Rossi ◽  
Marcelo Couto ◽  
André Amarildo Sezerino ◽  
...  
Keyword(s):  
Abscisic Acid ◽  
Block Design ◽  
Apple Fruit ◽  
Fruit Tree ◽  
First Year ◽  
Leaf Fall ◽  
Growing Seasons ◽  
Apple Leaves ◽  
Randomized Block Design ◽  
Second Year

Aims: Evaluate the effects of different concentrations of abscisic acid (ABA) on adult plants of productive age of ‘Daiane’ and ‘Fuji Suprema’, to follow the ecophysiological effects and their efficiency in inducing leaf senescence, sprouting and productivity, in the Midwestern region of the state of Santa Catarina. Study Design: The experiment was arranged in a randomized block design with six replications. Place and Duration of Study: The experiment was carried out in the municipality of Caçador, Brazil (latitude 26º50’07” S, longitude 50º58’32” W, altitude 969 meters), during the growing seasons of 2013/2014 and 2014/2015. Methodology: The apple fruit tree were submitted to the following treatments: 1) Control (without treatment), 2) abscisic acid 750 mg L-1, 3) abscisic acid 750 + 750 mg L-1, 4) abscisic acid 1500 mg L-1 and 5) abscisic acid 1500 + 1500 mg L-1. ABA applications in the first year were carried out on May 2, 2013 in treatments 2, 3, 4, and 5, and after 11 days (05/13/13) the plants of treatments 3 and 5 were sprayed again. In the second year, ABA applications were carried out on May 6 and 15, 2014, following the same application methodology described for the first year. As the source of abscisic acid (ABA) the commercial product ProTone® (20% i.a.) was used, without the use of adjuvant. The exogenous application of ABA was effective in promoting the senescence and leaf fall of the ‘Daiane’ and ‘Fuji Suprema’ cultivars. In the 2013/2014 season, the concentration of 750 mg L-1 was enough to induce 100% leaf fall in 'Daiane' plants. However, a difference was observed between the concentrations of ABA used. There was a difference between concentrations and number of applications. Lower concentrations were efficient and deflated as much as the higher concentration. The application of ABA induces the abscission of apple leaves in early autumn in 'Daiane' and 'Fuji Suprema' apple plants. The ABA does not affect shoots of axillary buds and anticipates the beginning of shoots.

scholarly journals EVALUATION OF SLOW RELEASE FERTILIZER ON THE INITIAL DEVELOPMENT AND COFFEE PRODUCTION

2019 ◽  
Vol 14 (4) ◽  
pp. 538
Author(s):  
Kleso Silva Franco Junior ◽  
Julian Silva Carvalho ◽  
Bernardino Cangussu Guimarães ◽  
Camila Karen Reis Barbosa ◽  
Giselle Prado Brigante ◽  
...  
Keyword(s):  
Shoot Growth ◽  
Slow Release ◽  
Block Design ◽  
First Year ◽  
Coffee Production ◽  
Fresh Matter ◽  
Initial Development ◽  
Slow Release Fertilizer ◽  
Randomized Block Design ◽  
Second Year

The objective in this work was to evaluate the efficiency of slow release fertilizer in seedling production, initial development and first coffee production. The research was carried out at Sitio Santa Felicidade, Campestre - MG, Brazil, in a randomized block design with two treatments and ten replicates, totaling 20 experimental plots. Coffee seedlings were produced using Ciclus Substrate (20% N, 22% P2O5 and 5% K2O) and conventional fertilizers 4 kg simple super phosphate (18% P2O5) and 0.25 kg Potassium Chloride (58% K2O). The variables evaluated were size, dry and fresh matter of the shoot and root system, and the seedlings were transplanted to the field and those from Ciclus Substrate received in the first year Ciclus NS (30% N) and in the second year. NK (19-00-19) and conventionally produced with conventional fertilizers (20-00-20 and 25-00-25 respectively), the variables evaluated were: shoot growth, length and number of plagiotropic branch internodes Slow release fertilizer ciclus Substrate has been found to be a viable technology for the production of arabica coffee seedlings, coffee planting NS provides good plant development and coffee producing NK provides good plant growth and higher productivity.

scholarly journals Maize response to inoculation with strains of plant growth-promoting bactéria

2016 ◽  
Vol 20 (7) ◽  
pp. 606-611 ◽  
Author(s):  
Janaína Dartora ◽  
Vandeir F. Guimarães ◽  
Cid R. J. Menezes ◽  
Mariângela B. Freiberger ◽  
Gustavo Castoldi ◽  
...  
Keyword(s):  
Plant Growth ◽  
Block Design ◽  
N Fertilization ◽  
Plant Growth Promoting Bacteria ◽  
Maize Seeds ◽  
Randomized Block Design ◽  
Plant Growth Promoting ◽  
Growth Promoting ◽  
Maize Response ◽  
Rhizobium Sp

ABSTRACT The aim of this study was to evaluate the response of maize to inoculation with strains of plant growth-promoting bacteria (PGPB) in two cultivation years. The experiment was set in a randomized block design with four replicates in two cultivation years (2012/13 and 2013/14). The treatments consisted of PGPB inoculation: control (without N and without inoculation); 30 kg of N ha-1 at sowing (N1); 160 kg of N ha-1 (N1 + 130 kg of N ha-1 as top-dressing); N1 + A. brasilense, Ab-V5; N1 + A. brasilense, HM053; N1 + Azospirillum sp. L26; N1 + Azospirillum sp. L27; N1 + Enhydrobacter sp. 4331; N1 + Rhizobium sp. 8121. Basal stem diameter, plant height, leaf area, shoot dry matter and yield were evaluated. The strain of Rhizobium sp. 8121and the isolate Azospirillum sp. L26 associated with 30 kg of N ha-1 at sowing promoted yields equivalent to that of the N fertilization of 160 kg ha-1, demonstrating the potential to be used in the inoculation of maize seeds.

scholarly journals Soil fertility and upland rice yield after biochar application in the Cerrado

2012 ◽  
Vol 47 (5) ◽  
pp. 699-706 ◽  
Author(s):  
Fabiano André Petter ◽  
Beáta Emöke Madari ◽  
Mellissa Ananias Soler da Silva ◽  
Marco Aurélio Carbone Carneiro ◽  
Márcia Thaís de Melo Carvalho ◽  
...  
Keyword(s):  
Soil Fertility ◽  
Upland Rice ◽  
Sandy Loam ◽  
Soil Depth ◽  
Block Design ◽  
First Year ◽  
Dry Matter Accumulation ◽  
Randomized Block Design ◽  
Second Year ◽  
Effect On Yield

The objective of this work was to evaluate the effect of biochar made from Eucalyptus on soil fertility, and on the yield and development of upland rice. The experiment was performed during two years in a randomized block design with four replicates, in a sandy loam Dystric Plinthosol. Four doses of NPK 05-25-15, annually distributed in stripes (0, 100, 200 and 300 kg ha-1), and four doses of biochar (0, 8, 16 and 32 Mg ha-1), applied once in the first year - alone or with NPK - were evaluated. In the first year, biochar positively affected soil fertility [total organic carbon (TOC), Ca, P, Al, H+Al, and pH], at 0-10 cm soil depth, and it was the only factor with significant effect on yield. In the second year, the effect of biochar diminished or was overcome by the fertilizer. TOC moved down in the soil profile to the 0-20 cm depth, influencing K availability in this layer. In the second year, there was a significant interaction between biochar and the fertilizer on plant growth and biomass dry matter accumulation.

scholarly journals Potassium Fertilization in Soybean and Its Correlation With Electrical Conductivity in Soil

2018 ◽  
Vol 10 (12) ◽  
pp. 336
Author(s):  
Maryzélia F. de Farias ◽  
Roberto L. V. Boas ◽  
Khalil de M. Rodrigues ◽  
Francisca G. de S. Garreto ◽  
Marileia B. Furtado ◽  
...  
Keyword(s):  
Electrical Conductivity ◽  
Grain Yield ◽  
Analysis Of Variance ◽  
Regression Models ◽  
Block Design ◽  
First Year ◽  
Potassium Fertilization ◽  
Randomized Block Design ◽  
The World ◽  
Second Year

Soybeans stand out among the main oilseeds in the world, with potassium (K+) as the second most required nutrient and exported by the plant. The objective of this study was to evaluate the effect of potassium fertilization on soybean crop and its correlation with the electrical conductivity in a Yellow Dystrophic Latosol in the Cerrado of Maranhão. The experiments were conducted in the years of 2015 and 2016. The design was a randomized block design, with five treatments and five replications. Treatments consisted of the following K2O doses: 0, 50, 100, 200 and 300 kg ha-1 in the sowing groove. The data collected were submitted to analysis of variance and regression. The response of soybean to potassium fertilization occurred for the mass of 100 grains. The highest grain yield was evidenced in the first year of soybean cultivation. The increase in the adjustment parameters of the regression models in the electrical conductivity of 20-40 cm in the second year of cultivation occurred as a function of the increase of the potassium fertilization.

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