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 Nitrogen Application in Arugula Culture

2019 ◽  
Vol 11 (2) ◽  
pp. 385
Author(s):  
Katiane Santiago Silva Benett ◽  
Ricardo Caldas Xavier ◽  
Cleiton Gredson Sabin Benett ◽  
Leandro Caixeta Salomão ◽  
Alexsander Seleguini ◽  
...  
Keyword(s):  
Vegetative Growth ◽  
Block Design ◽  
Nitrogen Sources ◽  
State University ◽  
Nitrogen Application ◽  
Leaf Quality ◽  
Randomized Complete Block Design ◽  
Coated Urea ◽  
Nutrient Amounts ◽  
Culture Development

Vegetable development and productivity are influenced by several factors, including the nutrient amounts available. Providing adequate nitrogen favours vegetative growth and promotes increased productivity, in addition to providing greater succulence and improving leaf quality. This work evaluated the effect of nitrogen doses and sources on arugula culture development and productivity. The experiment was conducted on the experimental farm at the State University of Goiás, Ipameri campus, in the municipality of Ipameri, Goiás state (GO). The experiment used a 2 × 5 factorial randomized complete block design, with two sources (normal urea and coated urea), five nitrogen doses (0, 60, 120, 180 and 240 kg ha-1 of N) and four replicates. Plant height, stem diameter, leaf number, fresh shoot matter, dry shoot matter and productivity were evaluated. The results obtained here suggest that nitrogen sources do not influence arugula culture development, but nitrogen doses influence the arugula culture’s productive characteristics.

scholarly journals Nitrogen Application and Leaf Harvesting Improves Yield and Nutritional Quality of Beetroot

2017 ◽  
Vol 27 (3) ◽  
pp. 337-343 ◽  
Author(s):  
Salfina S. Mampa ◽  
Martin M. Maboko ◽  
Puffy Soundy ◽  
Dharini Sivakumar
Keyword(s):  
Block Design ◽  
Root Diameter ◽  
Total Protein Content ◽  
Root Weight ◽  
Nitrogen Application ◽  
Root Yield ◽  
N Application ◽  
Leaf Yield ◽  
Leaf Harvest

Beetroot (Beta vulgaris), commonly known as table beet, is used as a staple in the diet of many people through the consumption of the entire plant, leaf, and the root. The objective of this study was to assess the effects of nitrogen (N) application and leaf harvest percentage on the yield and quality of roots and leaves of beetroot. The treatment design was a randomized complete block design with five levels of N (0, 60, 90, 120, and 150 kg·ha−1) combined with three leaf harvest percentages (0, 30, and 50) and replicated three times. The first leaf harvest was initiated 35 days after transplanting (DAT) by removing the outer matured leaves and the second harvest occurred 80 DAT by removing all the leaves. The results showed increases in leaf and root yield with an increase in N application. Nitrogen application at 90 and 120 kg·ha−1 increased fresh leaf weight, leaf number, and fresh and dry root weight, including root diameter and length with the exception of leaf area which was significantly higher at 120 kg·ha−1 N. Magnesium and iron leaf content, and N root content were significantly improved by the application of 120 kg·ha−1 N. Leaf harvest percentage did not have a significant effect on leaf yield or leaf and root mineral content. However, dry root weight was significantly reduced by the 50% leaf harvest. Leaf harvest at 30% or 50% increased total protein content of the roots of beetroot, whereas an increase in N application decreased concentration of total proteins. Results demonstrate that leaf and root yield, as well as magnesium, zinc, and iron leaf content, increased with the application of 120 kg·ha−1 N, whereas 30% leaf harvest did not negatively affect root yield.

scholarly journals Yield performance of upland rice cultivars at different rates and times of nitrogen application

2012 ◽  
Vol 36 (2) ◽  
pp. 475-483 ◽  
Author(s):  
José Hildernando Bezerra Barreto ◽  
Ismail Soares ◽  
José Almeida Pereira ◽  
Antonio Marcos Esmeraldo Bezerra ◽  
José Aridiano Lima de Deus
Keyword(s):  
Upland Rice ◽  
Oryza Sativa L ◽  
Block Design ◽  
N Fertilization ◽  
Rice Cultivars ◽  
Nitrogen Application ◽  
N Application ◽  
Yield Performance ◽  
Randomized Block Design ◽  
N Rates

Nitrogen is the most important nutrient for rice (Oryza sativa L) yields. This study aimed to evaluate the response of upland rice cultivars to N rate and application times in a randomized block design, in subdivided plots with four replications. The studied factors were five rice cultivars (BRS MG Curinga, BRS Monarca, BRS Pepita, BRS Primavera, and BRS Sertaneja), three application times (100 % at planting, 50 % at planting - 50 % at tillering and 100 % at tillering) and four N rates (0, 50, 100, and 150 kg ha-1). All cultivars responded to increased rates and different times of N application, especially BRS Primavera and BRS Sertaneja, which were the most productive when 50 % N rates were applied at sowing and 50 % at tillering. The response of cultivar BRS Monarca to N fertilization was best when 100 % of the fertilizer was applied at tillering.

scholarly journals Biostimulant and Micronutrient Applications in the Production of Acacia mangium Seedlings

2019 ◽  
pp. 1-11
Author(s):  
Nathália Ferreira Alves ◽  
Sebastião Ferreira de Lima ◽  
Ana Paula Leite de Lima ◽  
Catia Aparecida Simon ◽  
Pedro Paulo Virgilio Damis
Keyword(s):  
Leaf Area ◽  
Plant Height ◽  
Quality Index ◽  
Block Design ◽  
Acacia Mangium ◽  
Dry Mass ◽  
Diameter Ratio ◽  
Mato Grosso ◽  
Randomized Complete Block Design ◽  
Mato Grosso Do Sul

Aims: Evaluate the effects of applying biostimulant and micronutrients on Acacia mangium Willd seedlings. Study Design: A randomized complete block design was used in a 2x5 factorial scheme, with four replications. Place and Duration of Study: The experiment was conducted at the Universidade Federal de Mato Grosso do Sul, at the Chapadão do Sul Campus, MS, with the geographical coordinates 18º46’ 44” S and 52º36’ 49” W, in a nursery area from October 2015 to January 2016. Methodology: The treatments consisted of a combination of the presence or absence of a solution containing micronutrients and five doses of biostimulant (0, 7.5, 15.0, 22.5, and 30.0 mL per L of water). The commercial product Stimulate™ was used as the biostimulant, and the micronutrient solution was prepared at the concentration of 1.0%. The micronutrients in the solution were in the following formulations: ZnS04, H3BO3 and CuS04. The seeds were sown in tubes containing the commercial substrate Carolina Soil do Brasil, together with the use of Osmocote Plus™ fertilizer. Results: The use of biostimulant associated with micronutrients favored the rate of emergency speed. The doses of 24.8, 14.0 and 26.1 mL L-1 of biostimulant water provided the highest values for leaf area, plant height and total dry mass, respectively, when associated with the use of micronutrients. The height / diameter ratio decreased with increasing doses of biostimulant, while the Dicson quality index increased in the same condition. Conclusion: The use of micronutrients and biostimulants were favourable for the production of A. mangium seedlings. Only the height/diameter ratio (HDR) reduced for all biostimulant doses.

scholarly journals Propagation of Aloysia citriodora Palau Using Different Cutting Types under Light Intensity

2020 ◽  
pp. 1-9
Author(s):  
Orivaldo Benedito da Silva ◽  
Ademir Goelzer ◽  
Cleberton Correia Santos ◽  
Elissandra Pacito Torales ◽  
Néstor Antonio Heredia Zárate ◽  
...  
Keyword(s):  
Light Intensity ◽  
Vegetative Propagation ◽  
Block Design ◽  
Survival Rates ◽  
Dry Mass ◽  
Light Conditions ◽  
Fresh Weight ◽  
Mato Grosso ◽  
Randomized Complete Block Design ◽  
Mato Grosso Do Sul

Aims: The aim of this study was to evaluate the effect of types of cuttings and light intensity on cidró vegetative propagation. Place and Duration of Study: Medicinal Plants Garden, Federal University of Grande Dourados (UFGD), Dourados, state of Mato Grosso do Sul, Brazil, September to November 2016. Methodology: The experiment was carried out under two light conditions (shaded and full light), evaluating three types of cuttings (softwood, semi-hardwood and hardwood). Experimental design was a 2 x 3 factorial randomized complete block design (RCBD) with four replications. Results: Hardwood cuttings showed the highest survival rates (86% and 82%), regardless of light. Highest fresh weight (0.6062 g plant-1) and dry mass (0.2987 g plant-1) with a leaf of 44.57 cm2 were from hardwood cuttings, regardless of the light, while the longest root length were those of softwood cuttings under full light. Physiological indices varied as a function of light intensity, The highest values of leaf area ratio (46.11 cm2 g-1) and specific leaf mass (0.0037 g cm-2) occurred in cuttings under full light. Conclusion: The vegetative propagation of cidró can be carried out using the hardwood portion of the cutting branch, under full light.

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 New rhizobial strains for velvet bean (Stizolobium aterrimum) evaluated under greenhouse and field conditions

2017 ◽  
Vol 41 (4) ◽  
pp. 428-438
Author(s):  
Ítalo Augusto Férrer Melo Santos ◽  
Mario de Andrade Lira Junior ◽  
Adeneide Candido Galdino ◽  
Felipe José Cury Fracetto ◽  
Giselle Gomes Monteiro Fracetto
Keyword(s):  
Dry Mass ◽  
Field Conditions ◽  
Velvet Bean ◽  
Mineral N ◽  
N Accumulation ◽  
N Application ◽  
N Concentration ◽  
N Dose ◽  
Mass Increase ◽  
Selection Of

ABSTRACT The selection of efficient rhizobia for the inoculation of velvet bean may increase the use of this plant as green manure, maximizing the addition of nitrogen (N) to the crop. This study aimed to select rhizobia that nodulate velvet bean more efficiently than do strains currently recommended and for the potential of rhizobia to compose an inoculant. A greenhouse experiment evaluated 39 strains using non-sterile soil and was followed by a field experiment with the five most effective strains under field conditions on a dystrocohesive Yellow Argisol. Both experiments included non-inoculated and inoculated treatments with currently recommended strains and N-fertilized controls. Nodules, root and shoot dry mass, shoot N concentration and accumulation and relative efficiency were evaluated. The N dose corresponding to the shoot dry mass increase of the inoculated plants was also estimated. Under field conditions, the plants inoculated with the strains T2.19A and T1.17M had a shoot N concentration similar to that from the application of 80 kg ha-1 N, and the N concentration was significantly higher that of the other treatments; additionally, the N accumulation was significantly higher than that of the control (112 and 104% for the two strains, respectively), the recommended strain mixture inoculation (99 and 91%, respectively) and the mineral N application (58 and 52%, respectively). Inoculation with T2.19A and T1.17M presented promising results, showing the potential of these strains for recommendation and inoculation of velvet bean.

scholarly journals Doses of bokashi in the growth of two basil cultivars

2021 ◽  
Vol 6 ◽  
pp. 1-9
Author(s):  
Roberto Takane ◽  
Cyro Fragoso Silva ◽  
Jessica Soares Pereira ◽  
Christian Morimasa Takemura ◽  
Talita Angélica ◽  
...  
Keyword(s):  
Plant Height ◽  
Vegetative Growth ◽  
Aerial Part ◽  
Block Design ◽  
Dry Mass ◽  
Ocimum Basilicum ◽  
Stem Diameter ◽  
Control Treatment ◽  
Organic Fertilization ◽  
Randomized Block Design

The present work aimed to evaluate the influence of use, as well as to determine adequate doses in organic fertilization of the bokashi type in the cultivation of two basil (Ocimum basilicum L.) cultivars. Seeds from the collection of the Floriculture Laboratory of the Phytotechnics Department of the Federal University of Ceará were used. The treatments used were arranged in a randomized block design (RBD), arranged in a 2x5 factorial scheme, consisting of two cultivars of basil (Genovese and Anão) and five doses of Bokashi, namely: 0, 3, 6, 9 and 18 g.L-1. Plants that received no dose (0 g.L-1) served as a control treatment. Each treatment contained 5 repetitions, with the plot consisting of 7 pots, one plant per pot, the useful unit a pot with a basil seedling. From the transplant, applications of bokashi were started in doses of 0, 3, 6, 9, and 18 g.L-1 in both cultivars. Both applications were performed every 20 days after the first application of Bokashi. Fivety five days after transplantation in the final pot, the following variables were analyzed: plant height, stem diameter, fresh and dry mass of the aerial part and the root. The 9 g.L-1 dose of Bokashi showed the best results for the variables analyzed for both cultivars, in addition to being efficient when compared to the control, in which the vegetative growth was incipient.

Evaluation of Agronomic Performance of Amaranthus (Amaranthus cruentus cv. BRS Alegria) in Times and Seed Densities

2019 ◽  
pp. 1-13
Author(s):  
Fábio Kempim Pittelkow ◽  
Aloisio Bianchini ◽  
Pedro Silvério Xavier Pereira ◽  
Luana Maria de Rossi Belufi ◽  
Maria das Graças Bianchini ◽  
...  
Keyword(s):  
Block Design ◽  
Dry Mass ◽  
Time Interval ◽  
Amaranthus Cruentus ◽  
Soybean Crop ◽  
Final Population ◽  
Significant Difference ◽  
Productive Potential ◽  
Different Seasons ◽  
Sowing Season

The genus Amaranthus comprises several species of the Amaranthaceae family whose leaves and seeds are regularly consumed as food by populations in several countries, among which Brazil is not yet included. The objective of this work was to evaluate the productive potential of amaranth (Amaranthus cruentus cv. BRS Alegria) as a function of different seasons and sowing densities in succession to the soybean crop in the region of Lucas do Rio Verde, MT. The experimental design was a randomized complete block design, with four replications, in a 5x4 factorial scheme. The first factor refers to the five sowing seasons (16/02/2013; 26/02/2013; 05/03/2013; 20/03/2013 and 05/04/2013) and the second factor the four sowing densities (11.4, 20.0, 28.5 and 37.1 ppt m-2). The evaluated characteristics were: plant height (AP, in meters); stem diameter (DC, in millimeters); panicle length (CP, in millimeters); dry panicle mass (MSP, in g); dry mass of stalk (MSC, in g); sheet dry mass (MSF, in g); total dry mass (MST, in g); final population of plants (POP, in plants ha-1); productivity (PROD, in kg ha-1). The experimental data were submitted to analysis of variance and when means were significant the Tukey test to was utilized to compare the means. There was significant difference (p>0.05) in sowing density between the seasons, thus validating the variation of the desired sowing density between the seasons. The obtained real population and the different seasons of sowing were adopted as sources of variation of the other evaluated attributes. The later sows determined a longer time interval between sowing and panicle emission, as well as harvesting. The cumulative precipitation until the panicle and harvesting emission showed a great reduction as a function of the planting times. It is concluded that the productivity of the Amaranth crop is influenced directly by the number of plants per square meter and by the sowing season in succession the soybean crop.

scholarly journals Effect of Number of Seedlings Hill-1 and Rate and Time of Nitrogen Application on the Yield of Late Transplant Aman Rice (cv. Br23)

2015 ◽  
Vol 3 (4) ◽  
pp. 692-698
Author(s):  
N.A.M.Y. Ali ◽  
M.A.R. Sarkar ◽  
S.K. Paul
Keyword(s):  
Field Experiment ◽  
Grain Yield ◽  
Block Design ◽  
Nitrogen Application ◽  
N Application ◽  
Straw Yield ◽  
Field Laboratory ◽  
Randomized Complete Block Design ◽  
Nitrogen Rates

A field experiment was conducted at the Agronomy Field Laboratory, Bangladesh Agricultural University, Mymensingh to examine the effect of number of seedlings hill‑1 and rate and time of nitrogen application on the yield of late transplant Aman rice (cv. BR23). The experiment comprised three levels of number of seedlings hill-1 viz. 2, 4, and 6, three nitrogen rates viz. 0, 60 and 120 kg N ha-1 and three levels of time of nitrogen application viz. nitrogen application in two equal splits at 15 DAT and early tillering stage (ET); nitrogen application in three equal splits at 15 DAT, ET and panicle initiation (PI) stage; nitrogen application in four equal splits at 15 DAT, ET, PI and flowering (F) stages. The experiment was laid out in a randomized complete block design with three replications. Number of effective tillers hill‑1, grain yield and straw yield were the highest when 6 seedlings were transplanted hill‑1 while all yield contributing characters, grain and straw yields were the highest at 120 kg N ha-1. In case of interaction, the highest grain yield was recorded in combination of 6 seedlings hill-1 × 120 kg N ha-1 and 120 kg N ha-1 × three times of nitrogen applications (15 DAT + ET + PI). The highest number of effective tillers hill-1 and grain yield were recorded in 6 seedlings hill-1 × 120 kg N ha-1 × three times N application (15 DAT + ET + PI) and thus this practice appears as the promising one for late transplant Aman rice ( cv. BR23) cultivation.Int J Appl Sci Biotechnol, Vol 3(4): 692-698

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