Initial Growth of Planted Bare-root and Containerized Seedlings of Japanese Cypress (<i>Chamaecyparis obtusa</i>) after Nursery Rearing with Slow-release Fertilizer

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.

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DOSES OF SLOW RELEASE FERTILIZER IN THE INITIAL GROWTH OF TAMARIND SEEDLINGS

Nucleus ◽

10.3738/1982.2278.2800 ◽

2018 ◽

Vol 15 (1) ◽

pp. 137-146

Author(s):

Patrick Luan Ferreira dos Santos ◽

Amanda Pereira Paixão ◽

Oda Nubia Martins da Santos ◽

Regina Maria Monteiro de Castilho ◽

Raiana Crepaldi de Faria ◽

...

Keyword(s):

Slow Release ◽

Initial Growth ◽

Slow Release Fertilizer

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THE EFFECTS OF DIFFERENT FERTILIZER APPLICATIONS ON Acer rubrum `AUTUMN BLAZE' AND Acer rubrum `RED SUNSET'ON POT-IN-POT NURSERY PRODUCTION

HortScience ◽

10.21273/hortsci.40.3.884c ◽

2005 ◽

Vol 40 (3) ◽

pp. 884c-884

Author(s):

Kathryn Wimberley ◽

Dr. Pat Williams

Keyword(s):

Slow Release ◽

Block Design ◽

Acer Rubrum ◽

Late Summer ◽

State University ◽

Labor Costs ◽

Slow Release Fertilizer ◽

Nursery Production ◽

Bare Root ◽

One Year

Kentucky West Nursery Cooperative, producers of pot-in-pot trees, needed recommendations on slow-release fertilizer applications due to regional environmental influences affecting production. Murray State University established a pot-in-pot tree nursery to research these influences in 2004. Two different fertilizer applications in three different treatments were tested on one-year old bare-root whips of Acer rubrum `Red Sunset' and `Autumn Blaze'. These trees were planted in 100% pine bark in 15-gallon pots and placed in the sockets with a complete random split-block design. Drip irrigation by spray stakes watered each pot. Nursery floor was kept clean by landscape fabric. New growth was pruned as needed to keep the trees within nursery standards. Tree calipers were measured on 1 Apr. and 1 Dec. 2004 at the beginning and end of growth. Leaves for chlorophyll readings were randomly selected to measure nitrogen uptake in late summer. Measurements were analyzed by SAS 9.1 and results found no significant differences among the treatments either in caliper increase or in chlorophyll levels (SAS, 2002). This experiment recommends a treatment using one application of slow-release fertilizer, versus split or additional applications, provides equal, quality growth of Acer rubrum `Autumn Blaze' and `Red Sunset'. The information gathered will direct fertilizer applications for KWNC and reduce their labor costs.

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Slow-release fertilizer and hydrogel on the initial growth of camu-camu under different water conditions in a Savannah soil

Revista Brasileira de Ciências Agrárias - Brazilian Journal of Agricultural Sciences ◽

10.5039/agraria.v15i3a8139 ◽

2020 ◽

Vol 15 (3) ◽

pp. 1-11

Author(s):

J.L.L. Monteiro Neto ◽

W.F. Araújo ◽

E.A. Chagas ◽

R.H.S. Siqueira ◽

P.C. Chagas ◽

...

Keyword(s):

Slow Release ◽

Initial Growth ◽

Slow Release Fertilizer ◽

Water Conditions

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345 Incorporation of Slow-release Fertilizer Accelerates Growth during Adventitious Rooting of Artemisia, Gaura, and Nepeta

HortScience ◽

10.21273/hortsci.35.3.451d ◽

2000 ◽

Vol 35 (3) ◽

pp. 451D-451

Author(s):

D. Bradley Rowe

Keyword(s):

Slow Release ◽

Dry Weight ◽

Adventitious Rooting ◽

Primary Objective ◽

Initial Growth ◽

Root Number ◽

Slow Release Fertilizer ◽

Nursery Stock ◽

Four Blocks ◽

Propagation Media

Accelerating growth of nursery stock can produce marketable plants in less time, thus potentially increasing profits. The primary objective of this study was to compare adventitious rooting and initial growth of cuttings of three perennials species in response to slow-release fertilizer incorporated into the propagation media. The experiment was a split-plot consisting of four blocks, nine nutrient treatments, three species, and four cuttings per replication within each block-nutrient, species treatment. Treatments consisted of Nutricote 13-13-13 Type 180 and Nutricote 18-6-8 Type 180 incorporated into the rooting media, each at 3, 6, 9, and 12 g·L-1, and a control with no Nutricote. Species studied were Artemisia ludoviciana `Valerie Finnis', Gaura lindheimeri `Whirling Butterflies', and Nepeta ×faassenii `Six Hills Giant'. There were of 144 cuttings per species for a total of 432 cuttings. Fertilizer treatments did not influence rooting percentage, and no significant differences were found between the two formulations of fertilizer for top growth, root growth, rooting percentage, or root number. However, regardless of formulation or rate, the eight fertilizer treatments resulted in greater top and root dry weights when compared to the control. Top and root dry weight increased linearly within both fertilizer formulations.

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Loading rates of nutrients discharging from a golf course and a neighboring forested basin

Water Science & Technology ◽

10.2166/wst.1999.0535 ◽

1999 ◽

Vol 39 (12) ◽

pp. 99-107 ◽

Cited By ~ 10

Author(s):

Takao Kunimatsu ◽

Miki Sudo ◽

Takeshi Kawachi

Keyword(s):

Nutrient Loading ◽

Chamaecyparis Obtusa ◽

Phosphorus Loading ◽

Golf Course ◽

Nutrient Concentrations ◽

Golf Courses ◽

Japanese Cypress ◽

Arithmetic Average ◽

Loading Rates ◽

Runoff Rate

In the last ten years, the number of golf courses has been increasing in some countries as the game gains popularity. This indicates, a need to estimate the nutrient loading from golf courses in order to prevent the eutrophication of water bodies. Nutrient concentrations and flow rates of a brook were measured once a week from 1989 to 1990 at two sites: Site A of a brook flowing out from D-golf course (53 ha) and Site B of the same brook discharging into the golf course from an upper forested basin (23 ha) covered mainly with planted Japanese cypress (Chamaecyparis obtusa SIEB. et ZUCC). The bedrock of the area was granite. The annual values of precipitation and mean temperature were 1947 mm and 13.5°C in 1989, respectively. The arithmetic average values of discharge from the forested basin and the golf course were 0.392 and 1.26 mg/l total nitrogen (TN), 0.0072 and 0.145 mg/l total phosphorus (TP), 0.82 and 3.53 mg/l potassium ion (K+, 5.92 and 8.24 mg/l sodium ion (Na+), 2.1 and 9.9 mg/l suspending solid (0.001–2.0 mm, SS), 0.087 and 0.147 mS/cm electric conductivity (EC), and 0.031 and 0.037 m3/km2•s specific discharge, respectively. The loading rates of the forested basin and the golf course were 5.42 and 13.5 TN, 0.133 and 3.04 TP, 8.84 and 33.9 K+, 55.0 and 73.0 Na+, and 54.3 and 118 SS in kg/ha•y. The leaching and runoff rate of nitrogen in the chemical fertilizers applied on the golf course was calculated as 32%. These results indicated the importance of controlling the phosphorus loading for the management of golf courses.

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