scholarly journals Cobalt and Molybdenum applicated via leaf in the growth vegetative and yield of soybean

2020 ◽  
Vol 13 (4) ◽  
pp. 51
Author(s):  
P. L. G. Galdino ◽  
C. S. Pereira ◽  
I. V. A. Fiorini ◽  
F. G. Moraga ◽  
A. G. Comiran ◽  
...  
Keyword(s):  
Yield Components ◽  
Mass Number ◽  
Dry Mass ◽  
Trifoliate Leaf ◽  
Mato Grosso ◽  
Soybean Yield ◽  
Soybean Crop ◽  
High Yields ◽  
Different Doses ◽  
Made In

Advanced agricultural techniques have considerably increased soybean yield, but have led to the depletion of micronutrients in soils without adequate replenishment and have a key role in the maintenance and / or attainment of high yields in the soybean crop. Thus, the objective of this work was to determine the soybean yield components as a function of different doses and times of application of Cobalt (Co) and Molybdenum (Mo) via leaf. The experiment was conducted at the Celeste Farm, in Vera - Mato Grosso. Two applications of Co and Mo were made in the culture with the following doses of 0, 50, 100, 150 and 300 mL, the first application occurred in the V5 stage (fourth fully developed trifoliate leaf), and the second application in R2 (flowering full). A cultivar BRS811CRR was used in 40 plots of 11.25 m². The following variables were evaluated: plant height, dry mass, one hundred grain mass, number of pods per plant, grains per pod and productivity. The agronomic characteristics of the plants were not altered by the application of molybdenum cobalt via leaf, in the different stages of development of the soybean crop.

scholarly journals Modes of application with Cobalt and Molybdenum fertilizations in different stages of soybean development and yield of soybean

2020 ◽  
Vol 13 (3) ◽  
pp. 31
Author(s):  
A. G. Comiran ◽  
C. S. Pereira ◽  
I. V. A. Fiorini ◽  
P. L. F. Galdino ◽  
F. G. Moraga ◽  
...  
Keyword(s):  
Yield Components ◽  
Dry Mass ◽  
Reproductive Period ◽  
Atmospheric Nitrogen ◽  
Mato Grosso ◽  
Time Of Application ◽  
Full Flowering ◽  
Different Doses ◽  
Soybean Nodulation

The elements cobalt (Co) and molybdenum (Mo) are micronutrients of great importance for legumes, since they play a fundamental role in the fixation of atmospheric nitrogen assimilated by bacteria of the genus Bradyrhizobium. The objective of the present study was to evaluate the yield components of soybean as a function of different doses and time of application of cobalt and molybdenum via leaf. The experiment was conducted in the municipality of Vera - Mato Grosso. The treatments consisted of the combination of five doses of the micronutrient (0, 50, 100, 150 and 300 mL ha-1) with two phenologicals stages of application periods (V5, fifth node and fourth trifoliate flower and R2, full flowering)). The characteristics evaluated: dry mass of the nodules, number of nodules, number of pods per plant, grains per pod, mass of 100 grains and productivity. It is concluded that under the conditions of this experiment, the application of cobalt and molybdenum via leaf in V5 and R2 does not alter soybean nodulation. The application in the reproductive period (R2) provides a greater number of pods per plant and number of grains per pod, but does not affect productivity

scholarly journals CARACTERÍSTICAS AGRONÔMICAS DE SOJA EM FUNÇÃO DE ESPAÇAMENTOS ENTRE LINHAS DE SEMEADURA

2018 ◽  
Vol 14 (3) ◽  
pp. 187-193
Author(s):  
Maycon Wilhann Pereira ◽  
Leandro Meert ◽  
Antônio Mendes de Oliveira Neto ◽  
Naiara Guerra ◽  
Antonio Krenski ◽  
...  
Keyword(s):  
Plant Height ◽  
Stem Diameter ◽  
The Other ◽  
Row Spacing ◽  
Soybean Yield ◽  
Positive Correlation ◽  
Soybean Crop ◽  
High Yields ◽  
Response Variables

To obtain high yields in the soybean crop, it is necessary to have the minimum of competition among the plants.The objective of this work was to evaluate the influence of different spacing on productivity components and soybean yield. The design adopted was randomized blocks with 4 treatments (22, 44, 66 and 88 cm between rows) and six replicates. The cultivar used was 5909 with a population of 204 thousand plants per hectare. The response variables evaluated were plant height and first pod insertion, stem diameter, number of pods per plant, number of grains per pod, mass of one thousand grains and productivity. The height of plants and the diameter of the stem behaved in a quadratic manner, where the measure with which one increased the other reduced. The highest number of pods per plant (92) was obtained with the spacing of 64 cm between rows. The number of grainsper pod reduced linearly with increasing row spacing. The mass of 1000 grains and the productivity presented a quadratic behavior for the spacing, where the highest productivity 4772.60 kg ha-1was obtained with the spacing of 60 cm. The stem diameter showed a positive correlation with the number of pods per plant and with productivity. The height of insertion of the first pod showed a positive correlation with the mass of a thousand grains. The number of pods per plant was the variable that presented the highest correlation with productivity (0.84).

scholarly journals Productive characteristics of peanut cultivars fertilized with wood ash

2020 ◽  
pp. 691-696
Author(s):  
Edna Maria Bonfim Silva ◽  
Pollyanna Yoko Takenaka ◽  
Júlio José Nonato ◽  
Salomão Lima Guimarães ◽  
Tonny José Araújo da Silva
Keyword(s):  
Significant Interaction ◽  
Mass Number ◽  
Polynomial Regression ◽  
Low Cost ◽  
Dry Mass ◽  
Wood Ash ◽  
Mato Grosso ◽  
Leaf Dry Mass ◽  
Regression Test ◽  
Peanut Cultivars

Aiming to assist small farmers, the search for low cost fertilizers and soil acid correctives has intensified. The wood ash waste is an alternative, which can act as fertilizer and corrective. It is also from available materials, which are reuse-able with less environmental impact. The objective of this study was to evaluate the effect of wood ash doses (0, 6, 12, 18, 24 and 30 g dm-3) on the productive characteristics of peanut cv. IAC OL3 and IAC 503. The experiment was carried in a complete randomized block in factorial scheme 2x6 with five replications in a greenhouse at the Federal University of Mato Grosso campus of Rondonópolis, MT. The substrate was Cerrado Oxisol to fill 1.5 dm3 pots. The analysis of variance with sequential polynomial regression test was employed. The results showed that incorporation of wood ash to the soil was beneficial to the productive characteristics of peanuts. The dry mass of pods was influenced by wood ash application with higher results found for cultivar IAC 503. To the variables leaf dry mass, root dry mass, number of pods, grains pot-1 and grains yield showed no significant interaction between wood ash and cultivars. This study recommends wood ash doses in the range between 22.34 g dm-3 and 29.78 g dm-3.

scholarly journals Nitrogen application forms in different stages of soy culture development

2020 ◽  
Vol 13 (5) ◽  
pp. 1
Author(s):  
C. S. Pereira ◽  
J. V. Sanchez
Keyword(s):  
Vegetative Growth ◽  
Block Design ◽  
Dry Mass ◽  
Nitrogen Application ◽  
Mineral N ◽  
N Application ◽  
Mato Grosso ◽  
Soybean Crop ◽  
N Assimilation ◽  
Culture Development

In Brazil, inoculation with Bradyrhizobium japonicum strains is the main form of N assimilation by soybeans, but there are reports of the use of mineral N as a complement to the demand of this nutrient by the plant. The objective of this work was to verify the effect of different forms and times of N application on vegetative growth and soybean crop yield in northern Mato Grosso. The experimental design was a randomized block design (DBC) with 10 treatments: control (no N application); and in all other treatments 10 kg ha-1 of N was applied, changing season and form of application as: the haul in cover at planting; in V2 at hedging; in V2 via leaf; in V4 at hedging; of N in leaf V4; from N in R1 to hedging; N in leaf R1; in R2 at cover and in R2 leaf. The cultivar used was Bonus from Brasmax®. Vegetative growth was evaluated by height, stem diameter, shoot dry mass, nodulation by number of nodules and yield by variables, number of pods, grains per pod, mass of 1000 grains, and weight. productivity. In practically all variables analyzed, no effects of nitrogen application on soybean crop were verified. The shoot dry mass was higher when nitrogen was applied to V2 via foliar spraying and to V4 in soil cover. In general, although there was no statistical difference between treatments, N application at the beginning of crop development increased soybean yield. The application treatment V2 was the most productive, produced 34% more than the control without N, or 17.34 more bags than the control.

scholarly journals Genotype and environment interaction on soybean yield in Mato Grosso State, Brazil

2006 ◽  
Vol 41 (5) ◽  
pp. 785-791 ◽  
Author(s):  
José Francisco Ferraz de Toledo ◽  
Cláudio Guilherme Portela de Carvalho ◽  
Carlos Alberto Arrabal Arias ◽  
Leones Alves de Almeida ◽  
Rodrigo Luis Brogin ◽  
...  
Keyword(s):  
Block Design ◽  
Environment Interaction ◽  
Mato Grosso ◽  
Soybean Yield ◽  
Cultivar Development ◽  
Genotype Environment Interaction ◽  
Sowing Dates ◽  
Randomized Complete Block Design ◽  
North And South ◽  
Made In

The objective of this work was to investigate the genotype-environment interaction in Mato Grosso State, MT. The relative importance of locations, years, sowing dates and cultivars and their interactions was analyzed from data collected in regional yield trials performed in a randomized complete block design with four replications, from 1994-1995 through 1999-2000, in nine locations and two sowing dates. Individual and pooled analyses of variance over years and locations were performed. Complementary analyses of variances partitioned MT State in two main and five smaller regions, respectively: North and South of Cuiabá; and MT-South-A (Pedra Preta area), MT-South-B (Rondonópolis and Itiquira), MT-East (Primavera do Leste and Campo Verde), MT-Central (Nova Mutum, Lucas do Rio Verde and Sorriso) and MT-Parecis (Campo Novo dos Parecis and Sapezal). Locations are relatively more important than years for yield testing soybeans in the MT State, therefore, investment should be made in increasing locations rather than years to improve experimental precision. Partitioning the MT State into regions has little impact on soybean yield testing results and, consequently, on the efficiency of the soybean breeding program in the State. Breeding genotypes with broad adaptation for the MT State is an efficient strategy for cultivar development.

scholarly journals Co-inoculation of Bradyrhizobium japonicum and Azospirillum brasilense in the Soybean Crop

2020 ◽  
Vol 12 (10) ◽  
pp. 154
Author(s):  
Cleudson J. Michelon ◽  
Anderson D. Schott ◽  
Vitor A. B. Rubin ◽  
Emanuele Junges ◽  
Thamara E. Pinto ◽  
...  
Keyword(s):  
Grain Yield ◽  
Root System ◽  
Central Region ◽  
Bradyrhizobium Japonicum ◽  
Azospirillum Brasilense ◽  
Mass Number ◽  
Rio Grande ◽  
Dry Mass ◽  
Rio Grande Do Sul ◽  
Soybean Crop

The objective of this paper was to evaluate the effect of the co-inoculation of Bradyrhizobium japonicum (B. japonicum) and Azospirillum brasilense (A. brasilense) on the agronomic characteristics of the soybean crop in the central region of State of Rio Grande do Sul (RS). The experiment was conducted during three harvests (2016/2017, 2017/2018, 2018/2019), in the central region of the State of RS. The treatments were: T1-inoculation with 1 dose B. japonicum; T2-co-inoculation with 1 dose of B. japonicum + 1 dose of A. brasilense; T3-co-inoculation with 2 doses of B. japonicum + 1 dose of A. brasilense; T4-co-inoculation with 2 doses of B. japonicum + 2 doses of A. brasilense; T5-co-inoculation with 1 dose of B. japonicum + 2 doses of A. brasilense; T6-without inoculation (control). The determinations were: shoot and root system dry mass, number and dry mass of nodules, and grain yield. It was observed that the use of co-inoculation with 1 dose of B. japonicum + 2 doses of A. brasilense provided a higher dry mass of nodules and grain yield of the soybean crop.

scholarly journals Spatial arrangements and fertilizer doses on soybean yield and its components

2016 ◽  
Vol 20 (11) ◽  
pp. 960-964 ◽  
Author(s):  
Tiago C. Duarte ◽  
Simério C. S. Cruz ◽  
Guilherme F. Soares ◽  
Darly G. de Sena Júnior ◽  
Carla G. Machado
Keyword(s):  
Yield Components ◽  
Block Design ◽  
Population Number ◽  
Soybean Yield ◽  
Single Row ◽  
Final Population ◽  
Randomized Block Design ◽  
K Fertilization ◽  
Different Doses ◽  
Number Of Seeds

ABSTRACT The aim with this study was to evaluate the effects of single- and twin-row spatial arrangements associated with different doses of fertilization on soybean yield and its components. The experiment was carried out at Federal University of Goiás, Campus of Jataí, in a split-plot randomized block design with 10 treatments and four replicates. Each plot corresponded to a dose of P and K fertilization (0, 50, 100, 200 and 400% of the recommended dose) and the subplots to two types of spatial arrangements: single and twin rows. The yield components evaluated were plant final population, number of pods and seeds per plant, number of seeds per pod, weight of a thousand grains and yield. The increase in fertilization dose, even at doses two and four times higher than recommendation, results in increased soybean grain yield for both studied arrangements. The single-row arrangement provides greater soybean yield, regardless of the dose of fertilization, although most of the production components were not negatively affected, except the population.

scholarly journals Interference of Morning Glory in Soybean Yield

2018 ◽  
Vol 36 (0) ◽  
Author(s):  
F. PICCININI ◽  
S.L.O. MACHADO ◽  
T.N. MARTIN ◽  
N.D. KRUSE ◽  
A. BALBINOT ◽  
...  
Keyword(s):  
Experimental Design ◽  
Field Study ◽  
Weed Control ◽  
Mechanism Of Action ◽  
Yield Components ◽  
Morning Glory ◽  
Southern Brazil ◽  
Soybean Yield ◽  
Soybean Crop ◽  
Tolerant Plants

ABSTRACT: Weed control using herbicides with the same mechanism of action can encourage the emergence of resistant biotypes or tolerant plants. An example of this is the occurrence of morning-glory (Ipomoea sp.) in soybean crops in southern Brazil. In this sense, the aim of this study was to quantify the losses arising from two species of morning-glory weeding coexisting with soybean crop. A field study was conducted in the 2013/2014 season. The experimental design was a randomized block with four replications, with treatments being distributed in a factorial arrangement (2x2x5), which assessed the effect of competition on two soybean cultivars (TEC6029 and TEC7849) of morning-glory species (I. triloba and I. purpurea) in different population (0, 4, 8, 16 and 32 plants m-2). The interaction of soybean with different densities of morning-glory affects yield components. The first eight morning glory plants have a more intense competition, reducing productivity by 45% and 27% for TEC6029 and TEC7849 cultivars, respectively.

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