Elemental Status of Pine Bark-Based Potting Media

2011 ◽  
pp. 103-131
Author(s):  
R. J. Ogden ◽  
F. A. Pokorny ◽  
H. A. Mills ◽  
M. G. Dunavent
Keyword(s):  
Pine Bark ◽  
Elemental Status ◽  
Potting Media

scholarly journals Medium and Fertilizer Affect the Performance of Phalaenopsis Orchids during Two Flowering Cycles

HortScience ◽  
1994 ◽  
Vol 29 (4) ◽  
pp. 269-271 ◽  
Author(s):  
Yin-Tung Wang ◽  
Lori L. Gregg
Keyword(s):  
Leaf Size ◽  
Linear Increase ◽  
Pine Bark ◽  
Plant Performance ◽  
Leaf Production ◽  
Flowering Season ◽  
Stalk Diameter ◽  
Potting Media ◽  
Bare Root ◽  
Soluble Fertilizer

Bare-root seedling plants of a white-flowered Phalaenopsis hybrid [P. arnabilis (L.) Blume × P. Mount Kaala `Elegance'] were grown in five potting media under three fertility levels (0.25, 0.5, and 1.0 g·liter-1) from a 20N-8.6P-16.6K soluble fertilizer applied at every irrigation. The five media included 1) 1 perlite:1 Metro Mix 250:1 charcoal (by volume); 2)2 perlite:2 composted pine bark:1 vermiculite; 3) composted pine bark; 4) 3 perlite:3 Metro Mix 250:1 charcoal; and 5) 1 perlite:1 rockwool. During the first flowering season, plants in the 1 perlite: 1 Metro Mix 250:1 charcoal medium had slightly fewer but larger flowers and thicker stalks (section of the inflorescence between the base and oldest flower) than those in the 1 perlite:1 rockwool medium. Medium had no effect on stalk length. Two media (3 perlite: 3 Metro Mix 250: 1 charcoal and 1 perlite: 1 rockwool) resulted in root systems that were inferior to those in the others. Fertilizer level had no effect on bloom date or flower size. Regardless of medium, increasing the fertility from 0.25 to 1.0 g·liter-1 increased flower count, stalk diameter and length, and leaf production following flowering. During the second flowering season, media had limited effect on plant performance. Increased fertility promoted earlier inflorescence emergence and blooming. Higher fertilizer rates also caused a linear increase in the number of flowers and inflorescences per plant, and in stalk diameter, total leaf count, and leaf size.

scholarly journals Optimum Soluble and Slow-release N Rates for Rhododendrons and the Fate of Such N Applied to Various Potting Media

HortScience ◽  
1995 ◽  
Vol 30 (4) ◽  
pp. 794E-794
Author(s):  
Thomas M. Rathier
Keyword(s):  
Plant Growth ◽  
Slow Release ◽  
N Uptake ◽  
Plant Quality ◽  
Pine Bark ◽  
Factorial Experiments ◽  
Total N ◽  
Coated Urea ◽  
Potting Media ◽  
N Rates

Two year-long, factorial experiments were conducted on Rhododendron catawbienses (cv. Roseum elegans) grown in 2.3-liter plastic pots. I) Annual N rates of 0, 0.4, 0.8, 1.6, and 3.2 g/pot were applied as NH4NO3 (SBL) or sulfur-coated urea (SR) to plants potted in a composted hardwood bark (CHB)/peatmoss (P)/sand (S) medium. Plant growth and quality was best at 0.8 g N/pot for SBL and 1.6 and 3.2 g N/pot for SR. II) Annual N rates of 0.8 (SBL) and 2.4 (SR) g/pot were chosen as optimum rates and applied to plants potted in the following media: pine bark (PB)/P/S; CHB/P/S; P/S; and PB/CHB/P/S. Plant growth and N uptake was best in PB/PS. Plant quality was best in P/S. NO3 in leachate did not differ among media, but was greater in SBL. Total N immobilized in media was greater in PB/CHB/P/S. N recovered from SR-treated pots as unused fertilizer did not differ among media. Total applied N recovered was 90% for SBL and 51% for SR.

An Entomogenous Nematode Steinernema carpocapsae is Compatible with Potting Media Environments Created by Horticultural Practices

1991 ◽  
Vol 26 (4) ◽  
pp. 390-394 ◽  
Author(s):  
Ronald D. Oetting ◽  
Joyce G. Latimer
Keyword(s):  
Plant Growth ◽  
Plant Growth Regulators ◽  
Growth Regulators ◽  
Galleria Mellonella ◽  
Steinernema Carpocapsae ◽  
Pine Bark ◽  
Peat Moss ◽  
Negative Effects ◽  
Significant Difference ◽  
Potting Media

Three experiments were conducted to evaluate the effect of different potting media and horticultural practices on the infectivity of Steinernema carpocapsae (Weiser). Bioassays were conducted with S. carpocapsae added to potting media containing Galleria mellonella (L.) larvae. Potting media tested were aged pine bark, new pine bark, peat moss, aged cow manure, and a peat/vermiculite soilless medium (Pro-Gro 200). The horticultural practices tested were potting media pH level, fertilization, salt level, and application of plant growth regulators. The plant growth regulators ancymidol, paclobutrazol, chlormequat, and daminozide were each applied as a medium drench. The LC50s of the nematodes against G. mellonella, in potting media with different horticultural practices, were all between 0.50 and 2.06 with no significant difference in infectivity. Nematodes could be used for insect control with no negative effects under these growing conditions.

scholarly journals Production of desert rose seedlings in different potting media

2017 ◽  
Vol 23 (3) ◽  
pp. 250 ◽  
Author(s):  
Ronan Carlos Colombo ◽  
Vanessa Favetta ◽  
Deived Uilian de Carvalho ◽  
Maria Aparecida da Cruz ◽  
Sergio Ruffo Roberto ◽  
...  
Keyword(s):  
Seed Germination ◽  
Seedling Growth ◽  
Growth Parameters ◽  
Germination Rate ◽  
Seedling Emergence ◽  
Pine Bark ◽  
Initial Growth ◽  
Coconut Fiber ◽  
Potting Media ◽  
Emergence Percentage

Over the past decade the desert rose received fame in the flower market due to its striking and sculptural forms; however, the commercial production of these species is quite recent and little is known about its crop management, including substrates recommendation. The objectives of this study were to investigate the effect of different substrates on desert rose seed germination and production of its seedlings. Experiment I: freshly harvested seeds of desert rose were sown in different substrates e.g. sand, coconut fiber, semi-composted pine bark, sand + coconut fiber, semi-composted pine bark + sand and coconut fiber + semicomposted pine bark. These substrates were evaluated to study the emergence percentage of seeds, initial growth of seedlings and seedling emergence speed index (ESI). Experiment II: desert rose from the experiment I were transferred to plastic pots filled with the same substrates as in experiment I. The pH and electrical conductivity (EC) of the substrates were noted every 30 days while the growth parameters of seedlings were recorded after 240 days. Results from experiment I showed higher germination rate and seedling growth in substrates containing semi-composted pine bark. Similarly, in experiment II, better quality seedlings were observed in substrates containing semi-composted pine bark. Thus, for desert rose seed germination and seedling growth, it is recommended to use substrates containing semi-composted pine bark.

scholarly journals 247 Early Growth and Development of Container-grown Pawpaw Seedlings in Various Potting Media and Nutrient Regimes

HortScience ◽  
2000 ◽  
Vol 35 (3) ◽  
pp. 433E-433
Author(s):  
Kirk W. Pomper ◽  
Snake C. Jones ◽  
Eddie B. Reed
Keyword(s):  
Native American ◽  
Germination Rate ◽  
Pine Bark ◽  
Leaf Number ◽  
Control Medium ◽  
Sphagnum Peat ◽  
Asimina Triloba ◽  
Potting Medium ◽  
Potting Media ◽  
Main Plot

The pawpaw [Asimina triloba (L.) Dunal] is a native American tree fruit with potential in edible landscapes and as a new fruit crop. A split-plot experiment (main plot: fertilizer level and subplot potting medium) was conducted in the greenhouse to identify the best growing medium for production of pawpaw seedlings. Seeds were sown in rootrainers containing one of the following media: 1) Promix (control); 2) 6 pine bark:1 mason sand (v/v); 3) 1 mason sand: 1 sphagnum peat; and 4) 4 pine bark:1 mason sand:1 sphagnum peat. When seedlings had at least two to three leaves, weekly fertigation of seedlings began, using 0, 250, or 500 ppm Peters 20N-20P-20K. Germination rate at 10 weeks was similar in all media, at about 80%. The plants were destructively harvested 10 weeks after imposition of fertigation treatments. Both potting media and fertigation influenced leaf number and height; however, there was a significant interaction between these main effects. Leaf number and height for plants in medium 3 were similar to those of the control (medium 1), at about 11 leaves and 18-cm plant height, respectively, at 500 ppm fertigation. Plants in media 2 and 4 were about half as tall and had about half as many leaves as control medium plants at 500 ppm fertigation. Plant leaf area and biomass data will be discussed.

scholarly journals Shrinkage of Selected Two-component Container Media

HortScience ◽  
1990 ◽  
Vol 25 (8) ◽  
pp. 930-931 ◽  
Author(s):  
Mark A. Nash ◽  
Franklin A. Pokorny
Keyword(s):  
Particle Size ◽  
Size Effects ◽  
Mirror Image ◽  
The Other ◽  
Pine Bark ◽  
Shrinkage Curve ◽  
Particle Size Effects ◽  
Two Component ◽  
Potting Media

Component and particle-size effects on shrinkage of two-component potting media were determined. Milled pine bark-sand mixtures were used to determine particle-size effects on shrinkage. Shrinkage curves formed an inverted V with maximum shrinkage at the 1:1 (v/v) ratio. No shrinkage occurred when bark was mixed with bark or sand with sand. Shrinkage increased linearly in the range of 0% to 50% bark and decreased linearly in the range of 50% to 100% bark. Each half of the shrinkage curve was a mirror image of the other half. Shrinkage curves for peat-sand and peat-perlite were similar in form to that of bark-sand media.

scholarly journals COTTON GIN TRASH AS A CONSTITUENT OF BEDDING PLANT MEDIA

HortScience ◽  
1993 ◽  
Vol 28 (4) ◽  
pp. 273F-273
Author(s):  
Allen D. Owings
Keyword(s):  
Plant Height ◽  
Visual Quality ◽  
Dry Weight ◽  
Pine Bark ◽  
Shoot Dry Weight ◽  
Greenhouse Study ◽  
Quality Ratings ◽  
Bedding Plant ◽  
Potting Media ◽  
Cotton Gin

A greenhouse study was conducted to determine the influence of media containing varying volumetric proportions of composted cotton gin trash and pine bark on the growth of Coleus × hybridus 'Golden Bedder'. All media treatments were amended with 1.5 lbs/yd3 Micromax and 8 lbs/yd3 dolomite. Plant height, shoot dry weight, and visual quality ratings were determined six weeks after potting. Media composed of 100% cotton gin trash produced plants with significantly less height and shoot dry weight. Height inhibition was apparent by 3 weeks after potting. Coleus grown in media composed of 60-1002 pine bark had higher visual quality ratings than those grown in media having cotton gin trash as the primary constituent.

scholarly journals Optimized cutting of yellow passion fruit and its potential for unstaked or trellised cultivation

2020 ◽  
Vol 55 ◽  
Author(s):  
Carlos Augusto Santos de Jesus ◽  
Lucas Kennedy Silva Lima ◽  
Everton Vieira de Carvalho ◽  
Raul Castro Carriello Rosa ◽  
Onildo Nunes de Jesus ◽  
...  
Keyword(s):  
Fruit Yield ◽  
Passion Fruit ◽  
Pine Bark ◽  
Initial Growth ◽  
Plastic Mulch ◽  
Passiflora Edulis ◽  
Phenolic Foam ◽  
Potting Media ◽  
Great Damage ◽  
Yellow Passion Fruit

Abstract: The objective of this work was to evaluate types of cuttings, indole-3-butyric acid (IBA) concentrations, and potting media on the rooting of passion fruit (Passiflora edulis) cultivars, and to compare the initial performance of flowering-competent cuttings cultivated in a trellising system or in a nonstaking method on ground covered with plastic mulch. The passion fruit cultivars evaluated were BRS Gigante Amarelo, Isla Redondo Amarelo, and FB 200 Yellow Master were evaluated. The assessed treatments were: softwood or semi-hardwood cuttings; five concentrations of IBA (0, 500, 1,000, 2,000, and 4,000 mg L-1); and the pine bark or phenolic foam potting media. Initial growth, fruit yield, and bacteriosis severity were evaluated in the field in flowering-competent cuttings and seedlings, both in the trellising system and in the nonstaking method on mulched ground. For the evaluated cultivars, a high rooting rate (>90%) was observed for both softwood and semi-hardwood cuttings grown in phenolic foam or decomposed pine bark for potting media, regardless of the IBA concentration. In the espalier system, 14 months after transplanting, fruit yield was 45% higher for cuttings than for seedlings. Unstaked plants had a low number of flowers and fruit set, and a great damage by bacteriosis according to the used cultivar. The evaluated cultivars can be propagated either by softwood or semi-hardwood cuttings, in phenolic foam or decomposed pine bark, without IBA application. Flowering-competent cuttings have the potential to anticipate the production in the trellised cultivation of yellow passion fruit.

Influence of potting media types and weights on emergence and shoot growth of avocado (Persea americanaMill.) seedlings

Fruits ◽  
2003 ◽  
Vol 58 (6) ◽  
pp. 345-356
Author(s):  
Edossa Etissa ◽  
Seifu G Mariam ◽  
H. Ravishanker
Keyword(s):  
Shoot Growth ◽  
Potting Media ◽  
Media Types
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