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 Evaluation of almond young trees growth and nutritional status under different slow-release compound fertilizer types and doses at Nubaria region

2019 ◽  
Vol 43 (1) ◽  
Author(s):  
E. K. Nabila ◽  
M. S. Abourayya ◽  
Thanaa Sh. M. Mahmoud ◽  
R. A. Eisa ◽  
Amal M. Rakha ◽  
...  
Keyword(s):  
Nutritional Status ◽  
Vegetative Growth ◽  
Slow Release ◽  
Dry Weight ◽  
Stem Length ◽  
Research Centre ◽  
Research Station ◽  
Mineral Contents ◽  
Slow Release Fertilizers ◽  
Almond Trees

Abstract Background Slow-release fertilizers (SRF) are quite numerous, and diverse group of materials are involved in the improvement of the effectiveness of fertilization, mitigation of the negative impact of fertilizers on the environment, and the reduction of labor and energy consumption connected with the application of conventional fertilizers. The objective of the experiment was to measure vegetative growth parameters and nutritional status of Nonpareil almond young trees under two types of slow-release compound fertilizers: Matador at 30, 60, and 120 kg/Feddan and Nitrophoska at (25, 50, and 100 kg/Feddan. The experiment was conducted in the Experimental Research Station of National Research Centre at Nubaria, El Behera governorate, Egypt, during successive growing seasons 2018 and 2019. Results The results indicated that increasing doses of slow-release fertilizer significantly improved vegetative growth of trees. The highest dose of Nitrophoska had significantly higher stem length, diameter, numbers of branches and leaves/trees, leaf area, leaf chlorophyll content, leaf fresh and dry weight while the highest significant of specific leaf dry weight was obtained by applying the highest dose of Matador compared with control trees that received the fast-release fertilizer NPK 19:19:19 at 200 kg/Feddan. Leaf mineral contents of some macro (N, P, K and Mg) and micro elements (Fe, Mn, Zn, and Cu) were significantly increased as a result of application with slow-release fertilizers. Nitrophoska at 100 kg/Feddan gave the highest values of nitrogen, potassium, magnesium, and iron while Matador at 120 kg/Feddan gave the highest value of manganese. Matador at all doses resulted in a significant increment in phosphorus concentration in leaves in both seasons. Nitrophoska at 100 kg/Feddan and Matador at 120 kg/Feddan recorded the highest values of zinc and copper without significant differences between them. Conclusions It could be concluded that application with slow-release fertilizers resulted in a positive and significant influence on most investigated vegetative growth measurements and leaf mineral contents of Nonpareil almond trees, since the application with Nitrophoska at 100 kg/Feddan was the most effective treatment for increasing growth measurements and improving leaf nutritional status of Nonpareil almond trees grown under Nubaria condition.

scholarly journals Biosolid Residues as Soilless Media for Growing Wildflower Sod

2001 ◽  
Vol 11 (2) ◽  
pp. 194-199
Author(s):  
Bruce R. Roberts ◽  
Henry F. Decker ◽  
Kenneth J. Bagstad ◽  
Kathleen A. Peterson
Keyword(s):  
Slow Release ◽  
Dry Weight ◽  
Echinacea Purpurea ◽  
Single Application ◽  
Slow Release Fertilizer ◽  
Coreopsis Tinctoria ◽  
Purple Coneflower ◽  
Shoot Ratio ◽  
Growing Medium ◽  
Cosmos Bipinnatus

Two biosolid-containing waste media [sewage sludge compost and incinerated biosolids (flume sand)] were tested individually, together, and in combination with a commercial growing medium for growing wildflower sod in greenhouse trials over a 3-year period. A medium composed of flume sand and Metromix (7:3 weight/weight) in 7.5 {XtimesX} 10.5 {XtimesX} 2-inch deep (19 {XtimesX} 27 {XtimesX} 5-cm) plastic trays seeded at 20 oz/1000ft2 (6.1 g·m-2) with cosmos (Cosmos bipinnatus), cornflower (Centaurea cyannis), plains coreopsis (Coreopsis tinctoria), white yarrow (Achillea millefolium) and purple coneflower (Echinacea purpurea) produced a suitable wildflower sod in 10 to 12 weeks. A single application of slow release fertilizer (Osmocote 14-14-14, 14N-4.2P-11.6K) applied as a top dressing had no significant effect on sod development; however, a 4-mil [0.004-inch (0.10-mm)] polyethylene barrier placed in the base of each container resulted in increased dry weight accumulation and a higher root to shoot ratio relative to sod grown without plastic.

scholarly journals Evaluation of Incorporated Slow-release Fertilizers for Two-year Container Production Systems.

HortScience ◽  
1995 ◽  
Vol 30 (4) ◽  
pp. 794C-794
Author(s):  
James B. Calkins ◽  
Bert T. Swanson
Keyword(s):  
Slow Release ◽  
Production Systems ◽  
Nutrient Release ◽  
Dry Weight ◽  
Plant Performance ◽  
Fertility Treatment ◽  
Production Cycle ◽  
Plant Materials ◽  
Slow Release Fertilizers ◽  
Container Production

Media fertility, nutrient availability, and subsequently plant nutrition are critical factors that can be modified by growers to produce quality container-grown plants. The trend in container fertility has been toward incorporation of slow-release fertilizers; however, fertility release curves are variable and fertilizer longevity for many fertilizers is limited. Seventeen slow-release fertilizers were compared for longevity and plant performance over a 2-year production cycle using deciduous and evergreen plant materials. Plant growth was quantified based on height, volume, branching, dry weight, and quality. Soil fertility levels based on leachates were followed. Nutrient release for the incorporated fertilizers evaluated was variable. Fertility treatment effects were species-dependent. Several incorporated, slow-release fertilizers, especially those high in nitrogen and having extended release curves, including Nutricote 20–7–10, Scotts Experimental 24–6–10 and 26–6–11, Scotts Prokote Plus 20–3–10, Sierra 17–6–10, Sierra High N 24–4–6, Sierra Experimental 24–4–8, Woodace 21–4–10, Woodace 23–7–12, and Woodace Briquettes 23–2–0, show promise for use in 2-year container production systems.

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.  

scholarly journals Solvent-Free Synthesis of Iron-Based Metal-Organic Frameworks (MOFs) as Slow-Release Fertilizers

Polymers ◽  
2021 ◽  
Vol 13 (4) ◽  
pp. 561
Author(s):  
Yaxiao Du ◽  
Xuebin Xu ◽  
Fei Ma ◽  
Changwen Du
Keyword(s):  
Slow Release ◽  
Metal Organic Frameworks ◽  
Solvent Free ◽  
Compound I ◽  
Hydrothermal Conditions ◽  
Breakdown Spectroscopy ◽  
Slow Release Fertilizer ◽  
Slow Release Fertilizers ◽  
Metal Organic ◽  
Release Profiles

Metal-organic frameworks (MOFs) were usually synthesized in hydrothermal conditions; in this study, a more energy-saving, easier to control, and solvent-free mechanochemical method was firstly applied to synthesize MOFs with varied reactants as slow release fertilizer, and the components and structures were characterized by X-ray diffraction (XRD), Fourier transform infrared total attenuated reflectance (FTIR-ATR), and laser-induced breakdown spectroscopy (LIBS). Results showed that three MOFs (compounds I, II, and III) were obtained, the MOFs were confirmed as oxalate phosphate oxalate frameworks (OPA-MOF), and ions were adsorbed between layers that contributed to the contents, while urea molecules mainly impacted the structure. The elemental compositions significantly varied among the three compounds; compound I showed the highest content of N (4.91%), P (15.71%), and Fe (18.60%), compound III indicated the highest content of C (6.52%) and K (12.59%), while the contents of C, K, P, and Fe in compound II were in the medium range. Similar release profiles of Fe and P were found among the three MOFs, and the release rates of nutrients were demonstrated as the order of N > K > P > Fe. The compositions and release profiles demonstrated potential application of MOFs as a novel slow-release fertilizer.

Preparation and Properties of the Slow-Release Fertilizer with Green Coat

2012 ◽  
Vol 518-523 ◽  
pp. 4745-4748
Author(s):  
Qing Wang ◽  
Sha Chen ◽  
Pei Guang Zhao ◽  
Yu Cao ◽  
Long Fei Zhu ◽  
...  
Keyword(s):  
Water Retention ◽  
Slow Release ◽  
Nutrient Release ◽  
Release Behavior ◽  
Digestion Method ◽  
Slow Release Fertilizer ◽  
Environmental Friendly ◽  
Influence Of Water ◽  
Slow Release Fertilizers ◽  
Kjeldahl Digestion

A kind of double-coated environmental friendly fertilizer was prepared by urea as a core, well-mixed keratin and oxidation starch as an inner coating, and superabsorbent polymer as the outer coating. The influence of water absorbency, water retention, and the slow-release behavior of the study fertilizer were investigated. 0.01M CaCl2 immersion extraction and Kjeldahl digestion method were used to measure the content of nitrogen. And the result showed that the nutrient release was 72wt% on the thirtieth day. This result corresponded with the standard of slow release fertilizers of the Committee of European Normalization (CEN) [1]. Keratin and oxidation starch were biodegradable polymer and nontoxic. Both the properties of the materials and the result of the slow-release behavior suggested a new kind of excellent, environmental friendly, slow-release fertilizer.

scholarly journals Selecting the Optimum Slow-release Fertilizer Rate for Five Cultivars of Tissue-cultured Hosta

1998 ◽  
Vol 8 (2) ◽  
pp. 203-206 ◽  
Author(s):  
Wendy Britton ◽  
E.J. Holcomb ◽  
David J. Beattie
Keyword(s):  
Slow Release ◽  
Optimum Growth ◽  
Fertilizer Rate ◽  
Nutrient Analysis ◽  
Slow Release Fertilizer ◽  
Foliar Nutrient ◽  
Slow Release Fertilizers

Four rates of two slow-release fertilizers were tested for optimum growth of five hosta cultivars: Hosta sieboldiana `Elegans', Hosta plantaginea `Aphrodite', Hosta `Jade Scepter', Hosta `Hadspen Blue', and Hosta `Francee'. Tissue-cultured hostas from 2.5-cm plugs were planted in 6-inch (15-cm) pots filled with a commercial soilless medium, and the slow-release fertilizer was dibbled into the medium at 0, 3, 6, or 12 g/pot. The plants were maintained for 4 months. Root and shoot fresh and dry weights were recorded at the end of the experiment. In addition, foliar nutrient analysis was conducted on `Aphrodite', `Francee', and `Jade Sceptor'. Overall, hostas grew best when the medium was amended with 3 g of either Osmocote 14N-6P-11.5K or Sierrablen 17N-6P-12K slow-release fertilizer.

scholarly journals 127 Growth of Impatiens `Accent Orange' in Substrates Containing Compost with Four Slow-release Fertilizer Concentrations

HortScience ◽  
1999 ◽  
Vol 34 (3) ◽  
pp. 463D-463
Author(s):  
Kimberly Klock-Moore
Keyword(s):  
Slow Release ◽  
Dry Mass ◽  
Fertilizer Application ◽  
Application Rate ◽  
Slow Release Fertilizer ◽  
Application Rates ◽  
Fertilizer Application Rate ◽  
Fertilizer Rates ◽  
Pot Plants

The objective of this experiment was to compare the growth of impatiens `Accent Orange' in substrates containing compost made from biosolids and yard trimmings with four slow-release fertilizer application rates. Plugs of impatiens were transplanted into 400-ml pots filled with 100% compost as a stand-alone substrate or with 60%, 30%, or 0% compost combined with control substrate components. Six days after transplanting, all plants were top-dressed with 0.5, 1, 2, or 4 g of Nutricote 13N-5.7P-10.8K (type 180) per pot. Shoot dry mass increased as the percentage of compost in the substrate increased from 0% to 100%. Shoot dry mass also increased as the fertilizer application rate increased from 0.5 to 4 g per pot. Plants grown in 30% and 60% compost with 0.5 g of fertilizer were similar in size to plants grown in 0% compost with 4 g of fertilizer per pot. Plants grown in 100% compost at all of the fertilizer rates were larger than all other plants in this study.

scholarly journals Growth and Flowering of Lagerstroemia in Response to Pinching, Photoperiod, and Fertilization

HortScience ◽  
1998 ◽  
Vol 33 (4) ◽  
pp. 590b-590
Author(s):  
James M. Rawson ◽  
Richard L. Harkess
Keyword(s):  
Floral Development ◽  
Slow Release ◽  
Plant Size ◽  
Slow Release Fertilizer ◽  
Liquid Feed ◽  
Fertilizer Experiment ◽  
Affected Plant ◽  
Fertilizer Rates ◽  
Being Moved ◽  
Short Days

Three experiments were conducted using Lagerstroemia `Victor' and `Zuni', one on pinching, another on photoperiod, and the third with fertilizer rates. Liners were potted with either one or three liners per container. In the pinching experiment, treatments were 0, 1, 2, 3, or 4 pinches at 0, 2, 4, or 6 weeks after planting. In the photoperiod experiment the plants were exposed to 0, 4, 8, or 12 weeks of short days before being moved to long days. In the fertilizer experiment the plants were fertilized at 0, 200, 400, 600, or 800 mg.L-1 nitrogen from 20-10-20 liquid feed and 0 or 6 g per container of 15-11-13 slow-release fertilizer. For both `Victor' and `Zuni', three liners per container resulted in plants that were wider and shorter than those with only one liner. Neither timing nor number of pinches significantly affected plant size. Short days prevented vegetative growth and floral development in both cultivars. `Victor' grew and flowered best after receiving 8 weeks of short days before moving to long days. `Zuni' grew and flowered best when moved directly to long days after potting. Both `Victor' and `Zuni' grew best when receiving either 200 mg·L-1 or 6 g of slow-release fertilizer.

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