scholarly journals Growth and Quality of Inga heterophylla Willd Seedlings According to the Slow Release Fertilizer

2019 ◽  
Vol 11 (5) ◽  
pp. 479
Author(s):  
Elson J. S. da Silva ◽  
Jéssy A. V. Senado ◽  
Ádson E. da Silva ◽  
Marcos A. P. Gama ◽  
Selma T. Ohashi ◽  
...  
Keyword(s):  
Slow Release ◽  
Dry Mass ◽  
Experimental Unit ◽  
Native Forest ◽  
Mean Values ◽  
Slow Release Fertilizer ◽  
Performance Point ◽  
Slow Release Fertilizers ◽  
Collar Diameter

Slow release fertilizers have become an alternative for better efficiency in substrate fertilization for seedlings production, however, there are not many studies approaching the use of such fertilizers in the production of native forest species seedlings. This work aimed to evaluate the effect of different doses of a slow release fertilizer (SRF) on the development and quality of the Inga heterophylla seedlings. The experiment was conducted in a vivarium with 50% of shade for a 150-day period. Randomized blocks were the chosen experimental design, constituted of four treatments and four replications, with twenty plants per experimental unit. The treatments were four doses of Osmocote® FLL (0, 4.1, 8.2 and 12.3 g dm-3) in NPK 15-09-12 formulation, with evaluated variables being the height of the seedling (H), collar diameter (CD), number of leaf pairs (NLP), leaf area (LA), aerial part dry mass (APDM), root dry mass, total dry mass (TDM) and Dickson quality index (DQI). All the evaluated parameters responded significantly to the SRF doses and fit the positive quadratic polynomial model. For all of the analyzed variables, results show that the best averages were obtained by using the doses between 5.7 and 6.5 g dm-3, but due to the quadratic response they presented a decrease in the mean values after doses which were superior to the maximum performance point of each characteristic.

scholarly journals APLICAÇÃO DE FERTILIZANTE DE LIBERAÇÃO LENTA NO ESTABELECIMENTO DE MUDAS DE IPÊ-ROXO E ANGICO-BRANCO EM ÁREA DE DOMÍNIO CILIAR

FLORESTA ◽  
2011 ◽  
Vol 41 (2) ◽  
Author(s):  
Aletéia Lang ◽  
Ubirajara Contro Malavasi ◽  
Vanessa Decker ◽  
Paula Vergili Pérez ◽  
Maicon Antonio Aleixo ◽  
...  
Keyword(s):  
Slow Release ◽  
Native Forest ◽  
Initial Growth ◽  
Slow Release Fertilizer ◽  
Below Ground ◽  
Number Of Leaves ◽  
Collar Diameter ◽  
Non Destructive ◽  
Root Collar ◽  
Modern Tool

O uso de fertilizantes de liberação controlada constitui-se em uma das modernas técnicas na produção de mudas. Porém existem poucos relatos de seus efeitos sobre o crescimento inicial de espécies florestais nativas em área de domínio ciliar. O estudo objetivou comparar os efeitos de diferentes fertilizantes de liberação lenta (FLL) com uma formulação convencional no crescimento a campo de mudas de Anadenanthera colubrina e Tabebuia avellanedae. As mudas foram plantadas com 55 g por cova de Basacote 3M, Basacote 6M, Basacote 9M, formulação 16-8-12, e uma testemunha (sem fertilização). As mensurações não destrutivas incluíam os incrementos em altura, diâmetro do coleto e número de folhas aos 90, 180, 270 e 360 dias após o plantio, e avaliações destrutivas da massa seca aérea e radicular em mudas escavadas aos 180 e 360 dias após o plantio. Os resultados revelaram maior incremento para o diâmetro do coleto e o número de folhas em A. colubrina com FLL, enquanto que mudas de T. avellanedae expressaram maiores respostas em incrementos de altura. As biomassas secas da raiz e aérea não foram influenciadas pela adição de fertilizantes na cova, apresentando apenas diferenças entre as espécies.Palavras-chave:  Crescimento inicial; Anadenanthera colubrina; Tabebuia avellanedae; fertilizante de liberação lenta. AbstractEffects of fertilizers applied to ipe roxo and angico during their seedlings planting. Slow release fertilizer (SRF) is a modern tool for seedling production. However, there are few reports on the effects of its application on initial growth of native forest species planted on repairing areas. The aim of this experiment was to compare the effects of SRF and a conventional fertilizer on initial growth of fields planted with Anadenanthera colubrine and Tabebuia avellanedae seedlings. Treatments included 55 g per planting hole of Basacote 3M, Basacote 6M, Basacote 9M, conventional fertilizer NPK (16-8-12) and a control (no fertilizer). Non destructive measurements included increments of root collar, length, and number of leaves at 90, 180, 270 and 360 days after planting date. Destructive measurements included dried biomass of above and bellow ground tissues, root length, and leaf area of three seedling randomly selected from each treatment. The results showed higher increments in root collar diameter and number of leaves for A. colubrine with SRF while T. avellanedae seedlings showed higher increments in plant height. Differences in relation to above and below ground dry masses were detected only between species at 180 and 360 days after planting date.Keywords: Initial growth; Anadenanthera colubrina; Tabebuia avellanedae; slow release fertilizer.

scholarly journals Environment and slow-release fertilizer in the production of Euterpe precatoria seedlings

2018 ◽  
Vol 48 (4) ◽  
pp. 382-389
Author(s):  
Ueliton Oliveira de Almeida ◽  
Romeu de Carvalho Andrade Neto ◽  
Aureny Maria Pereira Lunz ◽  
Sônia Regina Nogueira ◽  
David Aquino da Costa ◽  
...  
Keyword(s):  
Slow Release ◽  
Block Design ◽  
Dry Mass ◽  
Palm Tree ◽  
Slow Release Fertilizer ◽  
Lack Of Information ◽  
Randomized Block Design ◽  
Number Of Leaves ◽  
Collar Diameter ◽  
Root Collar

ABSTRACT Euterpe precatoria Mart. has been demanded due to the functional characteristics of its fruits and, therefore, its planting has been encouraged. However, there is a lack of information about the seedling production system of this palm tree. Neither a favorable environment nor the amount of fertilizer in the substrate have been defined for the production of healthy and vigorous seedlings. This study aimed to evaluate the effect of environments and doses of a slow-release fertilizer on the production of E. precatoria seedlings. The experiment was conducted in a randomized block design, with three replications and ten plants per plot. The treatments were arranged in a 4 x 5 factorial scheme, with four environments (under shading levels of 20 %, 30 %, 50 % and 75 %) and five doses of a slow-release fertilizer (0.0 kg m-3, 2.5 kg m-3, 5.0 kg m-3, 7.5 kg m-3 and 10.0 kg m-3 of substrate). The seedling height; root collar diameter; number of leaves; leaf, shoot, root and total dry mass; and the Dickson quality index were analyzed. There were significant interactions between the shaded environments and slow-release fertilizer doses for all the analyzed variables. The 75 %-shaded environment yielded better quality seedlings. The slow-release fertilizer can be used to produce E. precatoria seedlings in environments under shading levels of 50 % and 75 %, being the 4.60 kg m-3 and 8 kg m-3 doses, respectively, the most recommended ones.

scholarly journals Influence of Slow-release Fertilizer Source on Growth and Quality of Areca Palm, Chrysalidocarpus lutescens Wendl

1988 ◽  
Vol 6 (1) ◽  
pp. 7-9
Author(s):  
F. D. Rauch ◽  
P. Yahata ◽  
P. K. Murakami
Keyword(s):  
Plant Growth ◽  
Slow Release ◽  
Urea Formaldehyde ◽  
Slow Release Fertilizer ◽  
Slow Release Fertilizers ◽  
Coated Urea ◽  
Slow Growing ◽  
Growing Crop

There was little difference noted in plant growth and quality of Areca palm, Chrysalidocarpus lutescens Wendl., when treated with three levels of several slow-release fertilizers at the manufacturer's recommended rates. The two resin-coated (RC) materials 18N-2.6P-10K and 17N-3.1P-10K (18-6-12 and 17-7-12) and urea formaldehyde (UF) fertilizer 10N-4.4P-8.3K (10-10-10) resulted in significantly better growth than either the isobutyledene diurea (IBDU) 20N-2.2P-4.2K (20-5-5) or the sulfur-coated urea (SCU) 14N-6P-12K (14-14-14) fertilizer sources. The RC materials were the least expensive fertilizers used in the production of this slow growing crop.

scholarly journals Matrix management interfers in yield and quality of cocoa seedlings

2018 ◽  
Vol 40 (3) ◽  
Author(s):  
Rafaela Alves Pereira ◽  
Gedeon Almeida Gomes Júnior ◽  
Eliandro Malta Rodrigues ◽  
George Andrade Sodré ◽  
Célio Kersul do Sacramento
Keyword(s):  
Quality Index ◽  
Quality Evaluation ◽  
Pearson Correlation ◽  
Dry Mass ◽  
Experimental Unit ◽  
Plant Management ◽  
Yield And Quality ◽  
Cocoa Seedlings ◽  
Dickson Quality Index

Abstract The influence of two managements on yield and quality of plagiotropic mini-cuttings of four cacao clones was evaluated. The design was completely randomized in a 4 x 2 factorial scheme with 4 clones x 2 mother plant management (apical pruning and bending), with 10 replicates and one plant as experimental unit. Seedlings used were propagated by rooting of semi-woody cuttings of plagiotropic branches and at seven months of age, two seedlings of each clone were transplanted to 12 L pots filled with organomineral substrate. After transplantation, the apex of one of the plants was cut based on the count of the first six leaves from the apex. For bending, stems were folded and horizontally fixed. The first collection of mini-cuttings was performed 30 days after transplantation and the others during the following seven months. The yield of mini-cuttings was estimated during collections and part was used for rooting and quality evaluation of seedlings. After 90 days, 10 mini-cuttings of each clone were evaluated for quality using the Dickson quality index (DQI). Another 10 rooted mini-cuttings were transplanted to 1.5 L polyethylene bags and kept in greenhouse for another 120 days until final quality evaluation at 210 days. Data were submitted to analysis of variance and Tukey test at 5% probability. Shapiro-Wilk normality test and Pearson correlation analysis were performed. bending was more efficient in the average production of mini-cuttings especially for BN 34 clone. The Dickson quality index was correlated with root dry mass, at both 90 and 210 days, and the bending technique was responsible for the best DQI. Variable height was not adequate to estimate the quality of cocoa seedlings.

scholarly journals PRODUÇÃO DE MUDAS DE Physocalymma scaberrimum EM SUBSTRATOS COMPOSTOS POR DIFERENTES PORCENTAGENS DE RESÍDUO ORGÂNICO DE AÇAÍ

FLORESTA ◽  
2012 ◽  
Vol 42 (2) ◽  
pp. 399 ◽  
Author(s):  
Álisson Sobrinho Maranho ◽  
Ary Vieira de Paiva
Keyword(s):  
Native Species ◽  
Urban Forestry ◽  
Dry Weight ◽  
Dry Mass ◽  
Native Forest ◽  
Shoot Height ◽  
The North ◽  
Randomized Design ◽  
Collar Diameter ◽  
Growth Of Seedlings

Physocalymma scaberrimum Pohl é uma espécie nativa que ocorre principalmente no Norte e Centro-Oeste do Brasil, com potencial madeireiro, para arborização urbana e para recomposição de vegetação em áreas degradadas. Considerando a necessidade de conhecimento do seu comportamento em viveiro e da utilização de resíduos agroflorestais como componente de substrato, este estudo teve por objetivo avaliar o crescimento de mudas dessa espécie em substratos compostos por porcentagens de resíduo de açaí (0%, 25%, 50%, 75%, 100%) misturado à terra de mata. O experimento ocorreu em delineamento inteiramente casualizado, com 5 tratamentos (substratos) e 20 repetições. Foi avaliado o crescimento das mudas através da altura, diâmetro do colo, massa seca da parte aérea e radicular e total, e Índice de Qualidade de Dickson (IQD). Houve ajuste de regressão linear e correlação positiva entre altura, diâmetro do colo e massa seca total com as porcentagens de resíduo de açaí. O substrato constituído por 100% do resíduo de açaí proporcionou o maior crescimento das mudas: 32,9 cm de altura, 2,98 mm de diâmetro do colo, 2,003 g de massa seca total e maior IQD (0,1142). Para a utilização com terra de mata, a composição entre 25% e 75% de resíduo também se mostrou possível.Palavras-chave: Resíduos agroflorestais; produção de mudas; espécies florestais nativas; silvicultura. AbstractPhysocalymma scaberrimum seedlings production in substrate composed by different percentages of organic residue of açaí. Physocalymma scaberrimum Pohl is a native species that occurs mainly in the North and Midwest regions of Brazil, with potential for wood production, urban forestry and restoration of vegetation in degraded areas. Considering the need for better understanding of the seedlings behavior in the nursery, and use of agroforestry residue as components of substrate, this study aimed to evaluate the growth of this species in substrates composed by different percentages of açaí residue (0%, 25%, 50%, 75%, 100%) mixed with forest soil. The experiment was set up according to the completely randomized design, with 5 treatments (substrates) and 20 replicates. It was evaluated the growth of seedlings through shoot height, collar diameter, dry weights of shoot and roots and total, and Dickson Quality Index (IQD). A fit linear regression and positive correlation was found out between height, collar diameter and dry weight total dry mass with increasing percentages of açaí residue. The substrate composed by 100% of açaí residue provided the highest mean growth of seedlings: height (32.9 cm seedling-1), collar diameter (2.98 mm seedling-1), total dry mass (2.003 g seedling-1), and highest IQD (0.1142). To use with soil, the composition between 25% and 75% of residue also showed possibility.Keywords:agroforestry residues; seedlings production; native forest species; silviculture.

scholarly journals Componentes não integrantes da carcaça de novilhos terminados em confinamento recebendo ureia protegida ou agrícola em substituição ao farelo de soja

2018 ◽  
Vol 39 (6) ◽  
pp. 2761 ◽  
Author(s):  
Gilmar Dos Santos Cardoso ◽  
Lucas Braido Pereira ◽  
Ana Paula Machado Martini ◽  
Amanda Farias de Moura ◽  
Marcelo Ascoli da Silva ◽  
...  
Keyword(s):  
Body Weight ◽  
Experimental Design ◽  
Soybean Meal ◽  
Slow Release ◽  
Experimental Unit ◽  
Initial Weight ◽  
Absolute Weight ◽  
Mean Values ◽  
Slaughter Weight ◽  
Slow Release Urea

The effect of termination of steers in a feedlot using the total substitution of soybean meal by slow-release or agriculture urea on the non-carcass components was evaluated. Twenty-seven purebred and Charolais × Nellore castrated crossbred steers (mean age 20 months, mean initial weight 293 kg) were allocated to received concentrates containing slow degradation urea, soybean meal, or agricultural urea. The experimental design was in randomized blocks (breed predominance), with three treatments and nine replicates, with the animal being the experimental unit. Diets did not lead to significant differences in empty body weight (EBW). The similarity between treatments was also verified in relation to EBW/slaughter weight, with mean values of 0.87 for treatments containing urea and 0.88 for soybean meal treatment. The gastrointestinal contents, both in absolute weight and in relation to EBW, were similar between the rations evaluated, with mean values of 54.33 kg and 13.52%, respectively. Steers fed with slow-release urea had a 32.8% higher weight of omasum relative to 100 kg of EBW (P < 0.05) compared to the animals fed with soybean meal.

scholarly journals 424 PB 133 EVALUATION OF THE EFFECT OF SLOW-RELEASE FERTILIZERS ON TWO WOODY ORNAMENTAL PLANT GROWN IN CONTAINERS

HortScience ◽  
1994 ◽  
Vol 29 (5) ◽  
pp. 492a-492
Author(s):  
Saâdia Triki ◽  
Isabelle Duchesne ◽  
Jacques-André Rioux
Keyword(s):  
Slow Release ◽  
Ornamental Plants ◽  
Field Studies ◽  
Dry Mass ◽  
The Third ◽  
Slow Release Fertilizers ◽  
Plant Grown ◽  
Woody Ornamental Plant ◽  
Woody Ornamental ◽  
Weigela Florida

Slow-release fertilizers (SRF) are greatly used in container production in addition to an hebdomadal fertigation regime. For economic and environmental motives, growers wish to restrict fertigations. The objectives of this paper are to characterize the release patterns of several SRF and to determine the benefits of these fertilizers on the growth of selected woody ornamental plants. The SRF used in this study were: Osmocote®, Nutricote®, Polyon®, Nutralene® and Woodace®. The two first parts of the study were conducted in a greenhouse in Marsh 1993, with Weigela florida `Rumba' in the first part and without plant in the second one. Fertilizers were top dressed according to a medium suggested concentration. The third part of this study was done in the field in June 1993, with the same fertilizers applied in three concentrations as follow: low suggested concentration (SC), 1.5× SC and 2× SC. Two species were tested in this part, Weigela florida `Rumba' and Spiraea bumalda `Goldflame'. Growth was measured by the height of the plant, the width of canopy and the dry mass of leaves, stems and roots. Samples leachate were collected weekly or monthly for greenhouse and field studies respectively. Leachates were analysed for their mineral content per dry mass of plant tissue and the results will be presented on the poster. In the third study, plants gave a comparable growth with the first and the third fertilizer concentrations.

scholarly journals Slow-release Fertilizer Source and Rate Affects Fall Garden Mum Vegetative Growth

HortScience ◽  
1998 ◽  
Vol 33 (4) ◽  
pp. 593e-593
Author(s):  
Edward Bush ◽  
Jeff Kuehny ◽  
Patricia Branch
Keyword(s):  
Vegetative Growth ◽  
Slow Release ◽  
Dry Weight ◽  
Pine Bark ◽  
High Rate ◽  
Slow Release Fertilizer ◽  
Slow Release Fertilizers ◽  
Fertilizer Rates

Three slow-release fertilizer formulations (Osmocote 14–14–14, 18–6–12, and Nutricote 17–6–10) at three rates (1, 2, and 3 lb/yd3) were incorporated into 4 pine bark: 1 sand (by volume) media filling 1-gal nursery containers. Additional treatments included slow-release fertilizer formulations at 1 lb/yd3 fertigated with 100 ppm N 20–10–20 fertilizer. As fertilizer rates increased, vegetative height, width, and dry-weight accumulation generally increased for both pinched and no-pinch mum crops. Fertigated pinch and no-pinch mums were the largest plants with the greatest dry-weight accumulation for each fertilizer formulation. The high rate for all slow-release fertilizers produced the greatest vegetative growth for nonfertigated treatments. This research suggest that higher rates for incorporated slow-release fertilizers and/or fertigation are required to produce maximum vegetative growth.

scholarly journals FERTILIZANTE DE LIBERAÇÃO LENTA NO DESENVOLVIMENTO DE MUDAS DE Schinus terebinthifolius e Sebastiania commersoniana

FLORESTA ◽  
2013 ◽  
Vol 43 (1) ◽  
pp. 93 ◽  
Author(s):  
Überson Boaretto Rossa ◽  
Alessandro Camargo Angelo ◽  
Antonio Carlos Nogueira ◽  
Danielle Janaina Westphalen ◽  
Marcos Vinícius Martins Bassaco ◽  
...  
Keyword(s):  
Technical Efficiency ◽  
Slow Release ◽  
Dry Weight ◽  
Production Quality ◽  
Experimental Unit ◽  
Total Biomass ◽  
Schinus Terebinthifolius ◽  
Slow Release Fertilizer ◽  
The City ◽  
Different Doses

 O objetivo do trabalho foi avaliar diferentes doses de fertilizante de liberação lenta (FLL) no desenvolvimento de mudas de Schinus terebinthifolius e Sebastiania commersoniana. O estudo foi realizado na região do Vale do Itajaí (SC), entre março e dezembro de 2009, em viveiro localizado no município de Rio do Sul, com sementes provenientes da própria região. O delineamento experimental foi inteiramente casualizado, com 6 tratamentos em 4 repetições, tendo 40 plantas como unidade experimental. Os tratamentos foram: T1–0 kg (testemunha); T2–2 kg; T3–4 kg; T4–6 kg; T5–8 kg e T6–10 kg de FLL por m³ de substrato-base. Decorridos 189 (aroeira) e 245 (branquilho) dias da semeadura, foram analisadas as variáveis altura total, diâmetro do coleto, biomassa seca da parte aérea, biomassa seca da raiz, biomassa seca total e dose de máxima eficiência técnica. As mudas de aroeira e branquilho tiveram um melhor crescimento com a dose de 10 kg de FLL por m³ de substrato padrão e 6 kg de FLL por m3, respectivamente. Ambas as plantas responderam significativamente ao uso do fertilizante de liberação lenta, apresentando as seguintes doses de máxima eficiência técnica: 9,48 (aroeira) e 5,54 kg.m-3 (branquilho) de Basacote 6M.Palavras-chave:Branquilho; aroeira-vermelha; fertilização; produção de mudas; qualidade de mudas florestais.AbstractSlow release fertilizer in development of Schinus terebinthifolius and Sebastiania commersoniana seedlings. This reserach aimed to evaluate different doses of slow-release fertilizer (FLL) in  Schinus terebinthifolius and Sebastiania commersoniana seedlings development. The study was conducted in Vale do Itajai (SC), between March and December 2009, in a nursery in the city of Rio do Sul, with seeds from the region. The experimental design was completely randomized with 6 treatments in 4 replications, with 40 plants as experimental unit. The treatments were: T1-0 kg (control), T2-2 kg, T3- 4kg-, T4-6 kg; T5-8kg; and T6-10 kg per m³ FLL substrate base. After 189 (aroeira) and 245 (branquilho) days of sowing, the variables analyzed were total height, diameter, shoot dry biomass, root dry weight, total biomass and maximum dose of technical efficiency. The seedlings of aroeira and branquilho had better growth with the dose of 10 kg per cubic meter of FLL standard substrate and 6 kg per m3 of FLL, respectively. Both plants responded significantly to the use of slow release fertilizer, with the following maximum doses of technical efficiency 9.48 (aroeira) and 5.54 kg.m-3 (branquilho) of Basacote 6M.Keywords: Sebastiana; red aroeira; fertilization; seedling production; quality forest seedlings.  

Sign in / Sign up

Export Citation Format

Share Document