scholarly journals Phosphate and nitrogen fertilization in the production of Barueiro (Dipteryx alata Vog.) seedlings

2019 ◽  
Vol 41 (6) ◽  
Author(s):  
Erika Katianne Costa Pinho ◽  
Ana Claudia Costa ◽  
Cesar Crispim Vilar ◽  
Manoel Euzébio de Souza ◽  
Aline Borges Vilela Silva ◽  
...  
Keyword(s):  
Nitrogen Fertilization ◽  
Dry Mass ◽  
Phosphorus Concentration ◽  
State University ◽  
Mato Grosso ◽  
Phosphate Fertilization ◽  
Nitrogen Concentrations ◽  
Number Of Leaves ◽  
Plant Stem ◽  
Dipteryx Alata

Abstract Barueiro (Dipteryx alata Vog.), a fruit tree native to the Brazilian cerrado, has aroused the interest of producers and consumers due to its almond highly appraised and valued by local markets. To obtain quality barueiro seedlings, balanced fertilization is required, with special attention to the supply of phosphorus and nitrogen, essential for seedling growth and establishment in the field. The aim of this study was to evaluate the growth of barueiro seedlings produced with different phosphate and nitrogen concentrations in Nova Xavantina – MT. The experiment was conducted at the seedling nursery of the Mato Grosso State University (UNEMAT), Campus of Nova Xavantina - MT, from December 2017 to April 2018. The experimental design was randomized blocks (DBC), in a 5 × 2 factorial scheme, corresponding to 5 phosphorus concentrations and 2 nitrogen concentrations, with 10 treatments, 4 blocks and 10 plants per plot, totalizing 400 seedlings. The applied concentrations were 0, 150, 300, 450 and 600 mg kg-1 P2O5 and 0 and 250 mg kg-1 N. The following variables were evaluated: plant height, plant stem diameter, number of leaves, number of leaflets, fresh and shoot and root dry mass and Dickson’s Quality Index. Significant interaction between phosphorus and nitrogen concentrations for all traits evaluated was observed, except for root dry mass. The greatest growth of barueiro seedlings was obtained when the highest phosphorus concentration (600 mg kg-1de P2O5) was used, associated to nitrogen fertilization of 250 mg kg-1. There was no isolated effect of phosphate fertilization on the growth of barueiro seedlings without nitrogen application.

scholarly journals Production of papaya seedlings and initial growth produced in different polyethylene recipients

2021 ◽  
Vol 14 (8) ◽  
Author(s):  
M. Marcolin ◽  
J. A. Massaroto ◽  
R. N. Souza ◽  
R. R. Rocha
Keyword(s):  
Dry Weight ◽  
Dry Mass ◽  
Initial Growth ◽  
State University ◽  
Mato Grosso ◽  
Randomized Design ◽  
Green Matter ◽  
Number Of Leaves ◽  
Polyethylene Bags ◽  
Completely Randomized Design

The objective of this study was to evaluate the vegetative and productive performance of papaya seedlings in response to different volumes of containers. The experiment was conducted in a seedling production nursery at the State University of Mato Grosso (UNEMAT), Campus de Nova Mutum - MT, using a completely randomized design with five replications, in which four sizes of polyethylene bags were tested in the production of seedlings: 10 x 16 cm, 15 x 21 cm, 17 x 27 cm and 20 x 21 The plots were composed of 3 plants. The parameters evaluated at 70 days after sowing were: plant height, stem diameter, number of leaves, root length, green matter mass and percentage of dry weight of the stem, leaves and roots. The container 17 x 27 cm stood out from the other containers, except for the characteristics of the length of the stem, percentage of dry mass of the stem and leaves where it was equivalent to the container 20 x 21 cm and the percentage of dry mass where all containers were equivalent. The experiment showed that the 17 x 27 cm container is the most recommended for the cultivation of papaya seedlings cultivar Sunrise Solo.

scholarly journals Water Availabilities Associated with Natural Phosphate and Triple Superphosphate in Radish Cultivation

2019 ◽  
pp. 1-11
Author(s):  
Edna Maria Bonfim-Silva ◽  
Juliane de Souza Beltrão ◽  
Raphael Pereira França de Paula ◽  
Wellington Fava Roque ◽  
Ana Paula Alves Barreto Damasceno ◽  
...  
Keyword(s):  
Aerial Part ◽  
Irrigation Management ◽  
Gravimetric Method ◽  
Field Capacity ◽  
Dry Mass ◽  
Fresh Mass ◽  
Triple Superphosphate ◽  
Mato Grosso ◽  
Natural Phosphate ◽  
Phosphate Fertilization

Aims: The objective of this study was to evaluate the development of giant Crimson radish cultivated in a oxisol under phosphate fertilizer sources (natural phosphate, triple superphosphate, natural phosphate + triple superphosphate and control) associated with water availabilities (40, 80 and 120% of the field capacity). Study Design: The experimental design was completely randomized, in a 4x3 factorial scheme, with 4 replications (48 units). Place and Duration of Study: The research was conducted in a greenhouse belonging to the Federal University of Mato Grosso, in the municipality of Rondonópolis (MT). Methodology: The dystrophic Oxisol was used to fill the 1.5 dm3 pots. The irrigation management was in accordance with the methodology of the maximum water retention capacity, by the gravimetric method. Phosphate fertilization was applied before sowing using 265 mg dm-3 phosphorus, varying the source used, triple superphosphate and Bayovar Natural phosphate. After the emergence of the plants, the other nutrients were applied to the soil. The parameters related to vegetative development and after the harvest of radish were evaluated at 20 and 35 days after sowing. Results: The parameters fresh mass of the aerial part, dry mass of the tubercle, dry mass of the aerial part, fresh mass of tubercle and length of tubercle had the highest values with the use of triple superphosphate, and for the field capacities of 80 and 120%. The highest harvest index (1.51) was found for the use of Natural phosphate in the field capacity of 120%. The water consumption by the plants was higher with the use of triple superphosphate and field capacity of 120% (6,425.25 L). The efficiency of water use was better with the application of triple Superphosphate and 40% of the field capacity (0.0547 g mL-1). Conclusion: There was influence of both water availabilities and phosphate fertilization on the studied parameters. Triple superphosphate associated with 80% of the field capacity allowed the best productivity averages for radish.

scholarly journals Reflective material in the formation of Dipteryx alata seedlings

2020 ◽  
Vol 9 (8) ◽  
pp. e430985428
Author(s):  
Edilson Costa ◽  
Thamíris Campaneli Lopes ◽  
Abimael Gomes da Silva ◽  
Tiago Zoz ◽  
Josiane Souza Salles ◽  
...  
Keyword(s):  
Aluminum Foil ◽  
State University ◽  
Rice Husks ◽  
Mato Grosso ◽  
Material Control ◽  
Active Radiation ◽  
Randomized Design ◽  
Completely Randomized Design ◽  
Mato Grosso Do Sul ◽  
Dipteryx Alata

The study aimed to evaluate the influence of reflective materials on the cultivation bench and the use of rice husks over the substrate in the formation of Dipteryxalata seedlings. The experiment was carried out in the experimental area of the Mato Grosso do Sul State University, in Cassilândia-MS, from November 1st, 2016 to January 26th, 2017. A completely randomized design in a 5 x 2 factorial scheme was used, with five replications and five plants per plot. Four reflective material for the cultivation bench and treatment without reflective material (control), combined with or without rice husks over the substrate (0.5 cm layer), were evaluated. Laminated paper tray, mirror, reflective fabric (known as “fake sequin fabric”), and aluminum foil were used as reflective materials. The reflecting materials did not differ in the reflectance of photosynthetically active radiation. However, the mirror and the aluminum foil reflected more than the control. The use of rice husk over the substrate did not increase the Dipteryxalata seedlings' quality. The mirror as a reflective material produced Dipteryxalata seedlings of higher quality than the system without material reflector called control.

scholarly journals MINERAL NUTRITION IN THE TREE Calophyllum brasiliense Cambess. (Calophyllaceae)1

2017 ◽  
Vol 41 (2) ◽  
Author(s):  
Paulo Sérgio Morandi ◽  
Simone Matias Reis ◽  
Beatriz Schwantes Marimon ◽  
Claudinei Oliveira-Santos ◽  
Edmar Almeida Oliveira ◽  
...  
Keyword(s):  
Native Species ◽  
Nutrient Use Efficiency ◽  
Dry Mass ◽  
State University ◽  
Mato Grosso ◽  
Nutrient Use ◽  
Plant Nursery ◽  
Calophyllum Brasiliense ◽  
Arc Of Deforestation ◽  
Gallery Forests

ABSTRACT Riparian and gallery forests located at the “arc of deforestation” have been undergoing fast degradation. With the implementation of the new Brazilian Forest Code (Law 12,651 of 2012), these can be reduced further. Thus, new studies on seedling production for ecological restoration should be carried out using native species from the Amazon and Cerrado. The objective of the present study was to assess under which shading levels the seedlings of Calophyllum brasiliense, a tree species typical of humid environments, show the highest values of growth and nutrient use efficiency, aiming at using these seedlings for restoration. The study was carried out in a plant nursery of the State University of Mato Grosso in Nova Xavantina, Brazil. We assessed seedling growth in diameter, height, number of leaves, production of shoot and root dry mass, Dickson quality index (DQI), and efficiency in the internal use of nutrients (EIUN) in greenhouses at 0 (full sunlight), 30, 50, 70, and 90% shading. The treatments at 50 and 70% shading showed the best results. Ecologically, the species responds well under both gap conditions (50% shading) and canopy or closing gap conditions (70% shading). Our results showed that the ideal conditions to produce seedlings of this species with high EIUN are obtained in greenhouses with 70% shading.

Investigating the Optimal Day for Nitrogen Fertilization on Piatã palisadegrass and Quênia guineagrass after Defoliation

2019 ◽  
pp. 1-11
Author(s):  
Dayana Aparecida De Faria ◽  
Anne Caroline Dallabrida Avelino ◽  
Carlos Eduardo Avelino Cabral ◽  
Joadil Gonçalves De Abreu ◽  
Lívia Vieira De Barros ◽  
...  
Keyword(s):  
Nitrogen Fertilization ◽  
Dry Mass ◽  
Water Soluble ◽  
Soluble Carbohydrates ◽  
Panicum Maximum ◽  
Mato Grosso ◽  
Grass Roots ◽  
Randomized Design ◽  
Water Soluble Carbohydrates ◽  
Structural Carbohydrate

Considering that nitrogen is the main macronutrient limiting pasture productivity, the aim of this study was to investigate the most appropriate day for nitrogen fertilization of the grasses Brachiaria brizantha BRS Piatã and Panicum maximum BRS Quênia. The experiment was conducted in a greenhouse in the city of Rondonópolis, located in the state of Mato Grosso, Brazil, using a completely randomized design. The treatments consisted of five nitrogen fertilization periods: 0; 2; 4; 6 and 8 days after defoliation. The dry mass of the leaf blade (DMLB), dry mass of stem + sheath (DMSS), dry mass of residue (DMRES) and root dry mass (RDM) were evaluated. The non-structural carbohydrate of the grass roots was also quantified. The later nitrogen fertilization after defoliation reduced DMLB (P< .01) and DMSS (P< .01) of the BRS Piatã palisadegrass, and DMRES of both grasses (P< .01). Higher levels of water soluble carbohydrates were observed when nitrogen fertilization was performed on grass cutting (day 0). Nitrogen fertilization of the BRS Piatã palisadegrass close the time of defoliation is recommended. For Quênia guineagrass, nitrogen can be applied between the cutting day and the eighth day after defoliation. For the root system, there is a higher content of water soluble carbohydrates in the BRS Piatã palisadegrass and greater accumulation of starch in the BRS Quênia guineagrass.

scholarly journals LIGHT ENVIRONMENTS AND PHOSPHORUS DOSES IN THE GROWTH OF BASIL PLANTS

Nativa ◽  
2018 ◽  
Vol 6 (4) ◽  
pp. 326
Author(s):  
Maria Elisa Falcão de Oliveira ◽  
Girlene Santos de Souza ◽  
Anacleto Ranulfo dos Santos
Keyword(s):  
Leaf Area ◽  
Phosphorus Content ◽  
Weight Ratio ◽  
Dry Mass ◽  
Ocimum Basilicum ◽  
Phosphate Fertilization ◽  
Number Of Leaves ◽  
Positive Results ◽  
Color Shading ◽  
Phosphorus Levels

AMBIENTES DE LUZ E DOSES DE FÓSFORO NO CRESCIMENTO DE PLANTAS DE MANJERICÃO O objetivo do trabalho foi avaliar o desenvolvimento das plantas de manjericão cultivadas em ambientes de luz modificada com o uso de malhas fotoconversoras sob diferentes dosagens de adubação fosfata. O delineamento experimental foi em blocos ao acaso em esquema fatorial 4 x 3, sendo os tratamentos: 0;50; 100 e 200 kg ha-1 de P2O5, e três ambientes de luz utilizando malhas fotoconversoras nas cores : azul e vermelho com 50% de sombreamento e a pleno sol, com cinco repetições. Após 120 dias de cultivo foram realizadas análises de crescimento das plantas de manjericão, além do teor de fósforo nas raízes. Observou-se interação significativa entre as doses de fósforo e os ambientes de luz para as variáveis número de folhas, área foliar, área foliar especifica, razão de área foliar e razão de peso foliar. Plantas de manjericão cultivadas a pleno sol na dosagem máxima de fósforo (200 kg ha-1 P2O5) apresentaram resultados significativamente superiores em relação àquelas cultivadas sob sombreamento. Porém vale ressaltar que o ambiente sombreado proporcionou maior altura e produção de massa seca, além de maiores teores de fósforo nas raízes. Conclui-se que a interação das malhas fotoconversoras com a adubação fosfatada apresentou resultados positivos em relação ao desenvolvimento das plantas de manjericão.Palavras-chave: luminosidade, planta medicinal, sombreamento, ocimum basilicum L. ABSTRACT:The objective of this work was to evaluate the development of basil plants cultivated in modified light environments with the use of color shading nets under different dosages of phosphate fertilization. The experimental design was a randomized block factorial design 4 x 3, with the treatments: 0, 50; 100 and 200 kg ha-1 P2O5 using shading nets in colors: blue and red, with 50% shading and full sun, and five replications. After 120 days of cultivation, analyzes of the growth of basil plants were carried out, in addition to the phosphorus content in the roots. There was a significant interaction between phosphorus doses and light environments for the number of leaves, leaf area, specific leaf area, leaf area ratio and leaf weight ratio. Basil plants grown in full sun at the maximum phosphorus dosage (200 kg ha-1 P2O5) showed significantly higher results than those grown under shade. However, it is worth noting that the shaded environment provided higher height and dry mass production, in addition to higher phosphorus levels in the roots. It was concluded that the interaction of color shading nets with the phosphate fertilization presented positive results in relation to the development of the basil plants.Keywords: luminosity, medicinal plant, shading, Ocimum basilicum L.

scholarly journals Reactive Natural Phosphate in Safflower Fertilization in Cerrado Oxisol

2019 ◽  
Vol 11 (15) ◽  
pp. 135
Author(s):  
Edna Maria Bonfim-Silva ◽  
Luana Glaup Araújo Dourado ◽  
Denise César Soares ◽  
Túlio Martinez Santos ◽  
Tonny José Araújo da Silva ◽  
...  
Keyword(s):  
Tropical Soils ◽  
Crop Productivity ◽  
Dry Mass ◽  
Growth And Yield ◽  
Mato Grosso ◽  
Nutrient Sources ◽  
Natural Phosphate ◽  
Final Population ◽  
Randomized Design ◽  
Number Of Leaves

Fertilizer management has a direct influence on crop productivity, especially phosphorus, which is most limiting to the development of crops in tropical soils due to the genesis of these soils. In this sense, it is necessary to use nutrient sources that are agronomically efficient at reduced costs compared to conventional sources. Thus, the objective of the present study was to evaluate the effects of reactive natural phosphate as a source of phosphorus on the development, growth, and yield of safflower in Cerrado Oxisol. The experiment was carried out in a greenhouse at the Federal University of Mato Grosso, Campus of Rondon&oacute;polis. The completely randomized design consisted of the following treatments: 0, 100, 200, 400 and 600 mg dm-3 of reactive natural phosphate (Bay&oacute;var reactive phosphate), with 6 replicates, consisting by pots with 2 dm3 of capacity. To the Oxisol used to fill the plots was incorporated dolomitic limestone to increase base saturation to60%. Safflower cultivar used was IMA 0213 with a final population of three plants per plot. Plant height, number of leaves and chlorophyll index were evaluated at 15, 30, 45 and 55 days after emergence. In the last evaluation plants were cut and the number and diameter of the chapters, shoot and chapters dry mass, volume and root dry mass were also evaluated. The results were submitted to analysis of variance and regression up to 10% probability. In general, safflower crop shows a positive response to application of reactive natural phosphate. Doses between 389 and 600 mg dm-3 promoted best results for development and safflower production in an Oxisol.

scholarly journals USE OF NANOCOMPOSITE HYDROGEL WITH N-UREA IN THE PRODUCTION OF EGGPLANT SEEDLINGS

2020 ◽  
Vol 7 (4) ◽  
pp. 80-85
Author(s):  
Josiane Souza Salles ◽  
Marçal Henrique Amici Jorge ◽  
Edilson Costa ◽  
Raphael Augusto de Castro e Melo ◽  
Alexandre Henrique Freitas de Lima ◽  
...  
Keyword(s):  
Dry Matter ◽  
Water Retention ◽  
Water Retention Capacity ◽  
Nanocomposite Hydrogel ◽  
State University ◽  
Retention Capacity ◽  
Mato Grosso ◽  
Number Of Leaves ◽  
Mato Grosso Do Sul ◽  
Dickson Quality Index

The use of quality seedlings of eggplant is directly related to the success of their production, with polymers added to the substrate, which work as water conditioners, increase the water retention capacity, and provide better seedling quality. The study aimed to evaluate the use of nanocomposite hydrogel enriched with different proportions of N-urea in the production of eggplant seedlings. The experiment was conducted at the State University of Mato Grosso do Sul, Cassilândia, MS, Brazil, from June to August 2019, under sombrite® 30%. Five treatments were evaluated, using the commercial substrate, Carolina Soil®: 1) commercial substrate without hydrogel; 2) commercial substrate with 0.075g of pure hydrogel (0.00g of N-urea)/15 mL of a substrate; 3) commercial substrate with 0.075g of hydrogel and 10% N-urea/15 mL of a substrate; 4) commercial substrate with 0.075g of hydrogel and 20% N-urea/15 mL of a substrate, and 5) commercial substrate with 0.075g of hydrogel and 40% N-urea/15 mL of a substrate. The experiment was conducted with four replications of 25 seedlings. The emergence speed index, percentage of emergence, height, number of leaves, stem diameter, shoot dry matter, root dry matter, and total dry matter were evaluated, as well as the Dickson Quality Index. The data were subjected to analysis of variance (SPEEDSTAT statistical software) and grouping test of means. A regression analysis was performed to adjust equations for some of the variables. The best seedlings can be obtained using the dosage of 28.83% N-urea with 0.075g of hydrogel per 15 ml of the substrate, according to the DQI adjustment, which includes several traits of the seedlings, thus reflecting on its quality.

scholarly journals Doses and Sources of Nitrogen in Two Forage Cultivars on the Dry Season

2020 ◽  
Vol 8 (3) ◽  
pp. 352
Author(s):  
Soraia Olivastro Teixeira ◽  
Oscar Mitsuo Yamashita ◽  
Marco Antonio Camillo de Carvalho ◽  
Henrique Lehrbach ◽  
Gustavo Caione ◽  
...  
Keyword(s):  
Nitrogen Fertilization ◽  
Mass Production ◽  
Dry Matter ◽  
Block Design ◽  
Nitrogen Sources ◽  
Dry Season ◽  
Dry Matter Accumulation ◽  
State University ◽  
Mato Grosso ◽  
Randomized Block Design

Nitrogen fertilization is an essential practice for the increase in biomass of forage, reducing the seasonality of production throughout the year. Thus, the objective was to evaluate the green and dry matter accumulation of more sheaths leaf blades and stems of Brachiaria cultivars in the dry season. The experiment was conducted from May to October 2014, at the State University of Mato Grosso, Brazil, in an area of 1.500 m2. The experimental design was a randomized block design with three replications. The treatments were characterized by factorial 2 x 2 x 5, two forage (cv. Marandu and Mulato II), two N sources (urea and ammonium sulphate) and five doses of N (0, 50, 100, 150 and 200 kg ha-1). Nitrogen fertilization affected the productive characteristics of forages, with greater accumulation of biomass at a dose of 200 ha-1 kg N. The nitrogen sources and forage influenced to a greater magnitude green mass production and dry stalks.

scholarly journals Analysis of growth and agronomic characteristics of off-season corn grown insuccession with soybean and submitted to nitrogen doses

2021 ◽  
Vol 14 (1) ◽  
pp. e007960
Author(s):  
Alan Mario Zuffo ◽  
Patrícia Vilela Da Silva ◽  
Gabriel Luiz Reis Devoz ◽  
Natielly Pereira da Silva ◽  
Rafael Felippe Ratke ◽  
...  
Keyword(s):  
Grain Yield ◽  
Growth Analysis ◽  
Management Strategies ◽  
Dry Mass ◽  
Mato Grosso ◽  
Nitrogen Levels ◽  
Leaf Chlorophyll ◽  
Physiological Indexes ◽  
Number Of Leaves ◽  
Ear Number

Nitrogen (N) fertilizer management strategies for the cultivation of off-season corn grown in succession to soybean can be established by growth analysis. Therefore, the objective was to evaluate the growth and agronomic performance of corn in the off-season due to nitrogen levels in an Oxisol of the Cerrado of the state of Mato Grosso do Sul, Brazil. The experimental design used was in randomized blocks, arranged in a split-plot scheme, with six replications. The plots were formed by five nitrogen doses (0, 40, 80, 120 and 160 kg ha-1 of N), and the time of evaluation of the corn development parameters (30, 45, 60 and 75 days after emergency (DAE)) constituted the subplots. The source of N used was urea (45% N), with 30 DAE applied. The cultivar Invictus Viptera 3 of corn was cultivated in the off-season. Plant height, leaf area, number of leaves, dry mass of the plant shoot, physiological indexes of growth analysis were evaluated at 30, 40, 60 and 75 DAE. In the flowering period of corn, after the emission of the female inflorescence, were determined the indirect readings of the leaf chlorophyll, leaf N, height plant, and height of the ear insertion. At the physiological maturity of the grain was evaluated height of ear insertion, ear length, number of rows per ear, number of grains per row and ear diameter, the mass of a thousand grains, and grain yield. The 160 kg ha-1 dose of N showed better performance and higher morphophysiological indices for corn off-season in succession to the soybean crop. However, the higher grain yield of corn was obtained with the 126 kg ha-1 of N.

Sign in / Sign up

Export Citation Format

Share Document