scholarly journals Foliar fertilization in Bermuda grass DiscoveryTM

2020 ◽  
Vol 26 (3) ◽  
pp. 448-457
Author(s):  
Jefferson Oliveira Silvério ◽  
Patrick Luan Ferreira dos Santos ◽  
Matheus Vinícios Leal do Nascimento ◽  
Camila Aparecida Nunes de Souza ◽  
João Victor Costa ◽  
...  
Keyword(s):  
Dry Mass ◽  
Bermuda Grass ◽  
Quick Response ◽  
New Variety ◽  
Foliar Fertilization ◽  
Foliar Fertilizer ◽  
Unique Color ◽  
Bluish Green ◽  
Response Method ◽  
Experimental Plots

Abstract Bermuda grass DiscoveryTM is a new variety of ornamental and sports turfgrass with a unique color (bluish green), which has great potential to grow in Brazil. However, information regarding its development is still incipient, mainly related to the management of foliar fertilization. Thus, the aimed was to evaluate the development of Bermuda grass DiscoveryTM based on doses of foliar fertilizer. The experiment was carried out in the experimental area, in 2019 autumn; and the experimental design was completely randomized, with 4 treatments and 3 repetitions, totaling 12 experimental plots of 1.5 m2 each. The treatments were: 0 mL L-1 (Control), 50 mL L-1, 75 mL L-1 and 100 mL L-1 of the foliar fertilizer: NPK (6-2-3 + 20% amino acids). The applications were carried out with costal spray, in the late afternoon (17h), to avoid losses by evapotranspiration, and the evaluations were daily over 15 days. The following were evaluated: chemical analysis of the soil, green color index, height of the lawn, dry mass of the clippings and analysis by digital image. It was observed that with the doses increasing, there was better development and coloring of the lawn, showing that foliar fertilization is an effective and quick response method for the turfgrass, with the need for regular applications in an interval of 7 days to maintain the quality desired aesthetics. However, this variety presents low vertical growth, consequently less need for maintenance of cut compared to the other Bermuda grass. The dose of 75 mL L-1 is recommended for the management of the species.

scholarly journals Sewage sludge composted in the coloring and development of Bermuda grass

2020 ◽  
Vol 26 (3) ◽  
pp. 440-447
Author(s):  
Brian Turati Rezende ◽  
Patrick Luan Ferreira dos Santos ◽  
Jéssica Cristina Meira Bezerra ◽  
Maximiliano Kawahata Pagliarini ◽  
Regina Maria Monteiro de Castilho
Keyword(s):  
Sewage Sludge ◽  
Cynodon Dactylon ◽  
Bermuda Grass ◽  
N Accumulation ◽  
New Variety ◽  
Bluish Green ◽  
Sustainable Cultivation ◽  
Black Plastic ◽  
Leaf Accumulation ◽  
Plastic Containers

Abstract ‘Barazur’ or DiscoveryTM (Cynodon dactylon) is a new variety of Bermuda grass that has slow vertical growth and a bluish-green colour, and the use of sewage sludge in implantation of this species may be an alternative for its sustainable cultivation, without need for chemical fertilizers. Thus, the objective was to evaluate the influence of sewage sludge compound on colour and development of Bermuda grass DiscoveryTM. The experiment was conducted in the field with sod implanted in black plastic containers (volume 8.46 L) filled with soil + sand (1:1) and added different dosages of sludge compost, being: 0 g L -1 (control), 30 g L-1, 60 g L-1 and 120 g L-1. Digital image analysis, fresh and dry leaf mass, Nitrogen leaf and Nitrogen leaf accumulation were evaluated. It was observed that the sewage sludge influenced on turfgrass colouring and development, where 30 g L-1 showed excellent results for colouring with less mass production and N accumulation than the highest dose, showing that this treatment is sufficient for lawn development, without the need of using higher concentrations of compound. It is concluded that the use of composted sewage sludge at a dose of 30 g L-1 is recommended for use in implantation of Bermuda grass DiscoveryTM.

scholarly journals Foliar fertilization on the production of grafted dwarf cashew seedlings

2019 ◽  
Vol 43 ◽  
Author(s):  
Ricardo Miranda dos Santos ◽  
Luiz Augusto Lopes Serrano ◽  
Carlos Alberto Kenji Taniguchi ◽  
Adriana Guirado Artur ◽  
William Natale ◽  
...  
Keyword(s):  
Dry Mass ◽  
Fertilizer Application ◽  
Ease Of Use ◽  
Experimental Unit ◽  
Foliar Fertilization ◽  
Foliar Fertilizer ◽  
Time Of Application ◽  
Randomized Design ◽  
Significant Difference ◽  
Fertilizer Rates

ABSTRACT Foliar fertilization is an important agricultural technique that has stood out for its ease of use and can contribute to the production of high-quality and -vigor cashew seedlings. The objective of this study was to evaluate the effect of foliar fertilizer rates and time of application on ‘BRS 226’ dwarf cashew seedlings after grafting. The experiment was carried out in a completely randomized design, with five treatments and 24 replicates. Each experimental unit consisted of one plant. The commercial product (NPK 20-20-20) was used at the recommended rate for fruit crops in general, 2.5 g L-1. Foliar fertilizer applications at 45 and 60 days after grafting (DAG), with 50% of the recommended rate (1.25 g L-1), or at 80 DAG, with 100% of the recommended, promoted increments of 9% and 13% in the total dry mass, respectively, in comparison to unfertilized plants. Besides that, at 80 DAG the foliar fertilizer application caused significant difference in the B contents, allowed obtaining better quality ‘BRS 226’ grafted dwarf-cashew seedlings. In the production of grafted seedlings of ‘BRS 226’ dwarf-cashew, it’s recommended to foliar fertilization at 45 and 60 days after grafting, with 1.25 g L-1 of the product based on NPK 20-20-20; or a single dose application 2.5 g L-1 at 80 days after grafting.

QUICK-RESPONSE METHOD FOR PREVENTING GAS MIXTURE PHOTOTHERMAL IGNITION

2016 ◽  
pp. 57-61
Author(s):  
Y. Polyakov ◽  
◽  
I. Begishev ◽  
A. Belikov ◽  
◽  
...  
Keyword(s):  
Gas Mixture ◽  
Quick Response ◽  
Response Method

Exogenous Nitrogen Uptake and Distribution in Chestnut

2020 ◽  
Author(s):  
Cheng Xu ◽  
Sujuan Guo ◽  
Jing Wang
Keyword(s):  
Nitrogen Uptake ◽  
Nitrogen Availability ◽  
N Uptake ◽  
Fertilizer Application ◽  
Ammonium Nitrogen ◽  
Foliar Fertilization ◽  
Foliar Fertilizer ◽  
One Year ◽  
Exogenous Nitrogen ◽  
Soil Fertilizer

Yield and quality of chestnut (Castanea mollissima) are affected by nitrogen availability; however, there are few reports on foliar and root absorption of different chemical forms of N in chestnut. To analyze the absorption characteristics of exogenous nitrogen fertilizer labeled by 15N in chestnut, nitrate and ammonium nitrogen uptake and allocation were determined in one-year-old seedlings that received soil- and foliar 15NH4NO3 and NH415NO3. We found that 29% of the nitrate and 25% of the ammonium absorbed by the leaves were translocated to the roots, while 62.01% of the nitrate and 63.27% of the ammonium absorbed by the roots were translocated to the shoots. The seedlings absorbed more nitrate nitrogen than ammonium nitrogen and their foliar N uptake was faster than their root uptake. Most of the N absorbed by the seedlings was fixed in the shoots in both foliar and soil uptake. The proportion of N fixed was greater in seedlings subjected to foliar fertilization than in those treated with soil fertilizer. Foliar fertilizer application can meet the N nutritional needs of fast-growing shoots more effectively than soil fertilizer application. However, soil fertilization was a better long-term N source than foliar fertilization. Thus, ensuring an adequate supply of nitrate N fertilizer in the soil accompanied by a commensurate increase in foliar fertilizer application can effectively meet the nutrient requirements associated with the rapid growth of chestnut seedling shoots.

scholarly journals POTENCIAL FISIOLÓGICO DE SEMENTES DE SOJA PRODUZIDAS COM ADUBO FOLIAR FOSFATADO

2020 ◽  
Vol 35 (3) ◽  
pp. 447-456
Author(s):  
Camila Gianlupi ◽  
Tathiana Elisa Masetto ◽  
João Miguel Azevedo ◽  
César Pedro Hartmann Filho ◽  
José Vinícius dos Santos Zanzi
Keyword(s):  
Glycine Max ◽  
Accelerated Aging ◽  
Cold Test ◽  
Soybean Seeds ◽  
Foliar Fertilization ◽  
Foliar Fertilizer ◽  
High Germination ◽  
Phosphate Fertilization ◽  
Physiological Quality

POTENCIAL FISIOLÓGICO DE SEMENTES DE SOJA PRODUZIDAS COM ADUBO FOLIAR FOSFATADO   CAMILA GIANLUPI1, TATHIANA ELISA MASETTO2, JOÃO MIGUEL AZEVEDO3, CÉSAR PEDRO HARTMANN FILHO4, JOSÉ VINÍCIUS DOS SANTOS ZANZI5   1 Faculdade de Ciências Agrárias, Universidade Federal da Grande Dourados, Rodovia Dourados-Itahum, 79804-970, Dourados-MS, Brasil, [email protected]. 2 Faculdade de Ciências Agrárias, Universidade Federal da Grande Dourados, Rodovia Dourados-Itahum, 79804-970, Dourados-MS, Brasil, [email protected]. 3 Faculdade de Ciências Agrárias, Universidade Federal da Grande Dourados, Rodovia Dourados-Itahum, 79804-970, Dourados-MS, Brasil, [email protected]. 4 Faculdade de Ciências Agrárias, Universidade Federal da Grande Dourados, Rodovia Dourados-Itahum, 79804-970, Dourados-MS, Brasil, [email protected] 5 Faculdade de Ciências Agrárias, Universidade Federal da Grande Dourados, Rodovia Dourados-Itahum, 79804-970, Dourados-MS, Brasil, [email protected]   RESUMO: O fósforo é um dos macronutrientes mais limitantes à produtividade da soja e pode influenciar na qualidade fisiológica das sementes. O objetivo deste trabalho foi avaliar o efeito da adubação foliar com fósforo aplicada em diferentes estádios de desenvolvimento, na produtividade e no potencial fisiológico de sementes de soja cultivar M6410 IPRO recém-colhidas e após o armazenamento por 180 dias em condições controladas. Foi avaliada a influência do adubo foliar fosfatado nos seguintes estádios de desenvolvimento “V5, R2, R4, V5+R2, V5+R4, R2+R4 e V5+R2+R4” na dose de 2,0 l ha-1. A qualidade fisiológica das sementes foi avaliada por meio da germinação, primeira contagem, índice de velocidade de germinação e emergência, envelhecimento acelerado, teste de frio, emergência a campo, tetrazólio e desempenho de plântulas. Os componentes de produtividade de sementes de soja não foram influenciados pela aplicação de adubo foliar com fósforo nas diferentes fases fenológicas. A aplicação nos estádios V5 e V5+R2+R4 proporcionou sementes com elevada germinação e vigor, no entanto, o armazenamento por 180 dias mesmo sob condições controladas prejudica o potencial fisiológico das sementes.   Palavras-chaves: Glycine max, adubação fosfatada, vigor, armazenamento.   PHYSIOLOGICAL POTENTIAL OF SOYBEAN SEEDS PRODUCED WITH PHOSPHATE FOLIAR FERTILIZER   ABSTRACT: Phosphorus is one of the most limiting macronutrients for soybean productivity, and it may influence the physiological quality of seeds. The focus of this study was to evaluate the effect of foliar fertilization with phosphorus used in different plant stages in productivity and physiological quality of soybean seeds cv. M6410 IPRO. The influence of foliar fertilization was measured in different plant stages of development “V5, R2, R4, V5+R2, V5+R4, R2+R4 e V5+R2+R4” and the dose was 2,0 l ha-1. The physiological quality of seeds was evaluated by germination, first score, rate of germination speed and emergence speed, field conditions emergence, tetrazolium test, seedlings performance, cold test and accelerated aging. The yield components of soybean seeds were not influenced by the period of foliar fertilization application with phosphorus. The application on V5 and V5+R2+R4 stages provided seeds with high germination and vigor. However, storage for 180 days even under controlled conditions reduced the seeds physiological potential.   Keywords: Glycine max, phosphate fertilization, vigor, storage.  

scholarly journals Use of a water-retaining polymer in the cultivation substrate of palmito-juçara (Euterpe edulis Mart.)

2020 ◽  
Vol 15 (7) ◽  
pp. 1
Author(s):  
Gimena Picolo Amendola Correa ◽  
Leandro Amendola Correa ◽  
Ana Aparecida da Silva Almeida ◽  
Julio Cesar Raposo de Almeida
Keyword(s):  
Aerial Part ◽  
Block Design ◽  
Initial Period ◽  
Dry Mass ◽  
Chicken Manure ◽  
Productive Capacity ◽  
Mata Atlântica ◽  
Euterpe Edulis ◽  
Mata Atlantica ◽  
Experimental Plots

Over the years, the natural landscape of Atlantic forest has undergone significant changes. Inventories carried out by the Fundação SOS Mata Atlântica and by the National Institute for Space Research (SOS Mata Atlântica and INPE, 2017), showed that 83.7% of the São Paulo territory initially covered by this biome has already been transformed into pasture, monoculture and other uses. This intensive exploration resulted in extensive degraded areas, resulting from abandonment after the loss of the productive capacity of the soil. For the recovery of physical and chemical characteristics and the reduction of soil loss due to erosive processes, forest species are planted. During planting and in the first weeks of plant growth, the lack or excess of water can limit development. In this case, an alternative used is to add water-retaining polymers to the soil that have the ability to increase water retention. This study evaluated the effect on the growth of Palmito-Juçara (Euterpe edulis Mart) seedlings of different doses of water-retaining polymer incorporated into the growing substrate, with watering on five consecutive days and with alternating watering for a period of three months in a nursery. The experiment started when the seedlings presented 220 days after sowing. The juçara plants were grown in plastic bags filled with 850 g of substrate composed of a mixture of peat, carbonized rice husk, horse manure, chicken manure, tanned bovine manure, mineral fertilizer and dolomitic limestone. To study the effect of the hydro-retaining polymer, the following doses of a polyacrylic potassium copolymer were added to the dry substrate: D0 = without adding the polymer to the substrate (control); D2 = 2g of polymer; D3 = 3 g of polymer; D4 = 4 g of polymer; and, D5 = 5 g of polymer. Each dose was combined with two irrigation regimes, watering for five consecutive days or alternating, in a 5 x 2 factorial arrangement, with 15 repetitions, totaling 150 experimental plots in a randomized block design. The transplanting of the seedlings to the bags took place in April 2019 and every 30 consecutive days, five individuals were collected from each dose and each type of irrigation (50 experimental plots / collection), that is, 3 collections (250 days, 280 days and 310 days after sowing). In each collection, the length of the leaves and the root system, the diameter of the stem, the height of the plant, the dry mass of the aerial part, the dry mass of the root and the total dry mass were measured. After checking the normality of the data and the homoscedasticity of the variances, analyses of variances were performed (ANOVA, p <0.05) and the differences between the means were compared using the Tukey test (p <0.05). The analysis of the results showed significant differences between the irrigations, with greater growth for the variables of leaf length, stem diameter, plant height and dry mass of the aerial part in the initial period of development of juçara plants. In the condition of irrigation in five consecutive days, the highlight was for dose D3 and, in alternate watering, for dose D5.

scholarly journals Increasing Quality through Implementing the Quick Response Method to Achieve Competitiveness of the Company

2008 ◽  
Vol 2 (4) ◽  
Author(s):  
Lenka Branská Lenka Branská ◽  
Zuzana Pecinová Zuzana Pecinová
Keyword(s):  
Quick Response ◽  
Response Method

scholarly journals ESTIMATION OF THE GROWTH OF ‘VANDA’ MAIDEN SWEET CHERRY TREES ON THREE ROOTSTOCKS AND AFTER APLICATION OF FOLIAR FERTILIZATION IN A NURSERY

2019 ◽  
Vol 18 (1) ◽  
pp. 109-118
Author(s):  
Sławomir Świerczyński ◽  
Klaudia Borowiak ◽  
Maciej Bosiacki ◽  
Magdalena Urbaniak ◽  
Agnieszka Malinowska
Keyword(s):  
Sweet Cherry ◽  
Dry Mass ◽  
Gas Exchange Parameters ◽  
Cherry Tree ◽  
Foliar Fertilization ◽  
Trunk Diameter ◽  
Lateral Shoots ◽  
Increasing Demand ◽  
Positive Effect ◽  
Cherry Trees

Cultivation of sweet cherry trees is growing in popularity in Poland thus there is an increasing demand for good quality nursery material. The growth of maiden sweet cherry trees of ‘Vanda’ depending on three rootstocks was compared within three years of the nursery experiment. Also the nutritional status as well as photosynthetic activity of maiden trees after the use of four foliar preparations were in the scope of interest. On the basis of the size of the trunk diameter and weight of maiden sweet cherry tree fresh mass as well as on the basis of dry mass of leaves, the strongest vigor of growth was observed on Colt rootstock, contrary to the vigor on GiSeLa 5 rootstock, in which it was the weakest. Maidens produced on Colt rootstock formed more lateral shoots in comparison to other rootstocks. After foliar fertilization, maiden sweet cherry trees growing on Colt rootstock did not show better parameters of growth, except for Maxi Grow Excel preparation that caused better results of growth. The influence of preparations used on the content of macro and microelements was differentiated. A positive effect of all preparations was noted as far as gas exchange parameters were concerned, especially in the case of Maxi Grow Excel.

Estructura del pasto forrajero con cultivares de Urochloa brizantha bajo sombra

2021 ◽  
Vol 12 (3) ◽  
pp. 828-844
Author(s):  
Estella Rosseto Janusckiewicz ◽  
Luísa Melville Paiva ◽  
Henrique Jorge Fernandes ◽  
Alex Coene Fleitas ◽  
Patricia Dos Santos Gomes
Keyword(s):  
Rainy Season ◽  
Block Design ◽  
T Test ◽  
Foliar Fertilization ◽  
Foliar Fertilizer ◽  
Randomized Block Design ◽  
Dead Material ◽  
Urochloa Brizantha ◽  
Leaf Fertilizer ◽  
Dry And Rainy Seasons

This study evaluated the structure of swards planted with Urochloa brizantha cv. BRS Paiaguas and BRS Piata under the eucalyptus shading system, fertilized via foliar at the beginning of the dry and rainy seasons. The experiment followed a randomized block design with a 4×2×2 (4 leaf fertilizer levels × 2 systems × 2 seasons) factorial arrangement. The results were analyzed using the GLIMMIX PROC of SAS University while means were compared by the T-test at 5%. Foliar fertilizer had a significant (P≤0.05) effect on cv. BRS Paiaguas stem mass under shading while the 3 and 6 L/ha levels produced the lowest (P≤0.05) masses. The forage and root masses were not significantly affected (P≥0.05) by the systems and seasons whereas the dead material mass was not influenced by the seasons. The shading system resulted in (P≤0.05) significantly lower dead material mass for both cultivars and higher (P≤0.05) leaf and stem masses for the cv. BRS Piata. In the rainy season, leaf and stem masses were greater (P≤0.05). Foliar fertilization up to 6 L/ha favored the stem control in cv. BRS Paiaguas under shading. The resulting masses of forage, dead material, and root allow concluding that the cultivars adapted well to the shading and dry season.

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