scholarly journals Agro-industrial-residues as potting media: physicochemical and biological characters and their influence on plant growth

2021 ◽  
Author(s):  
Pratibha Agarwal ◽  
Sampa Saha ◽  
P. Hariprasad
Keyword(s):  
Plant Growth ◽  
Industrial Residues ◽  
Potting Media ◽  
Biological Characters

scholarly journals Variability in Plant Growth in Retail Potting Media

2006 ◽  
Vol 16 (1) ◽  
pp. 7-12 ◽  
Author(s):  
Amanda Wiberg ◽  
Richard Koenig ◽  
Teresa Cerny-Koenig
Keyword(s):  
Plant Growth ◽  
Chemical Properties ◽  
Assessment Tools ◽  
Plant Performance ◽  
Physical And Chemical Properties ◽  
Growth Responses ◽  
Potting Media ◽  
Complete Fertilizer ◽  
Physical And Chemical ◽  
And Chemical Properties

There is extensive variability in physical and chemical properties among brands of retail potting media. The purpose of this study was to assess variability in seed germination and plant growth responses among and within brands. Twenty-four different brands of media, and multiple bags of five brands, were purchased at nine retail stores. Tomato (Lycopersicon esculentum) seeds were germinated in 11 different brands of media and in media from different bags of four of the same brands. Marigold (Tagetes erecta) and petunia (Petunia×hybrida) were grown to flowering in 10 brands of media. Germination varied significantly among media brands and among bags of one of the brands. Plant performance also varied significantly, with several of the brands producing plants with few flowers, long times to flowering, and low shoot and root dry weights even though all treatments received uniform applications of a complete fertilizer solution three times per week. Few relationships could be discerned between individual physical and chemical properties of the media and plant performance. Results indicate improvements in quality among brands and quality control within brands are needed in the retail potting media industry. Quality assessment tools emphasizing plant performance could improve overall media quality.

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.

Glomus intraradix effects on citrus rootstock seedling growth in various potting media

1992 ◽  
Vol 118 (3) ◽  
pp. 315-323 ◽  
Author(s):  
S. Nemec
Keyword(s):  
Plant Growth ◽  
Linear Models ◽  
Fine Sand ◽  
Root Weight ◽  
Sour Orange ◽  
Rough Lemon ◽  
Wood Shavings ◽  
Citrus Rootstock ◽  
Potting Media ◽  
Glomus Intraradix

SUMMARYFive potting media components mixed in various combinations and in various percentages of one with another (0, 14·3, 29, 42, 57, 71 and 100% by volume of the second component with the first) were inoculated with Glomus intraradix in six experiments. Seedlings of citrus rootstocks were grown from seed in these mixes. Sour orange in inoculated peat plus vermiculite, Astatula fine sand plus vermiculite, and peat plus Perlite® in all percentage combinations grew c. two- to threefold taller than noninoculated control plants. Up to twofold growth increases of sour orange occurred in vermiculite amended with wood shavings. The best evidence for fungus-mediated plant growth occurred in Astatula fine sand amended with 29–71% Perlite, and the roots in that combination had the highest percentage of infection. In another experiment in which Astatula fine sand was amended with up to 16% of an acid peat, ratios of inoculated rough lemon plant growth to controls decreased as the peat content in the medium increased. Top and root weight ratios of inoculated:control seedlings in the six experiments did not fit four simple linear models.

AERATION OF POTTING MEDIA AND PLANT GROWTH

Soil Science ◽  
1986 ◽  
Vol 141 (6) ◽  
pp. 438-441 ◽  
Author(s):  
G. J. BUGBEE ◽  
C. R. FRINK
Keyword(s):  
Plant Growth ◽  
Potting Media

scholarly journals 322 In Vitro Propagation of the Ornamental Bromeliad, Tillandsia eizii

HortScience ◽  
2000 ◽  
Vol 35 (3) ◽  
pp. 447E-447
Author(s):  
Kimberly A. Pickens ◽  
Jan Wolf ◽  
James M. Affolter ◽  
Hazel Y. Wetzstein
Keyword(s):  
Plant Growth ◽  
In Vitro Propagation ◽  
Habitat Destruction ◽  
Adventitious Bud ◽  
Naphthaleneacetic Acid ◽  
Growth And Survival ◽  
In The Wild ◽  
Potting Media ◽  
Highland Maya

Many bromeliad species indigenous to the rain forests of Central and South America are threatened because of over-collection and habitat destruction. Studies were conducted to develop propagation protocols for Tillandsia eizii, a rare ornamental bromeliad of ceremonial significance to the Highland Maya communities in Chiapas, Mexico. We anticipate using in vitro propagation for the conservation of this species with the potential of utilizing bromeliads as an alternative and sustainable forest resource. Protocols were developed for the sterilization and germination of axenic seed. Seedling growth in vitro was assessed and outplanting studies were conducted. Media were evaluated to promote adventitious bud production in experiments using the plant growth regulators naphthaleneacetic acid and benzylaminopurine. Pulse time and duration, as well as the stage of seed development, had a marked effect on bud production. The effects of various potting media on plant growth and survival were assessed. A pure pine bark medium elicited over 95 percent survival. Plants exhibited a “tank-like” morphology characteristic of plants in the wild.

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 Substrates and irrigation levels for growing desert rose in pots

2018 ◽  
Vol 42 (1) ◽  
pp. 69-79 ◽  
Author(s):  
Ronan Carlos Colombo ◽  
Vanessa Favetta ◽  
Marcelo Augusto Aguiar e Silva ◽  
Ricardo Tadeu de Faria
Keyword(s):  
Plant Growth ◽  
Ornamental Plant ◽  
Water Retention Capacity ◽  
Dry Density ◽  
Coconut Fiber ◽  
Retention Capacity ◽  
Irrigation Level ◽  
Potting Medium ◽  
Potting Media ◽  
Irrigation Levels

ABSTRACT In the past decades, desert rose has become a very popular ornamental plant, especially among collectors, due to its exotic and sculptural forms. However, it has been grown on a commercial scale only recently, and little is known about how to best manage it as a container-grown plant, or even which potting medium (substrate) to recommend. Therefore, the aim of this study was to investigate the interactions between potting media and irrigation levels for growing desert rose as a potted ornamental plant. The experiment was conducted in a greenhouse using a 6 x 2 factorial arrangement with six replications, six potting media and two irrigation levels. The mixes were characterized by measuring their physical properties, specifically the density and water retention capacity (WRC), as well as chemical properties, such as the pH and electrical conductivity (EC). After 210 days, plant growth and plant water consumption were evaluated and measured. A lower dry density for the vermiculite mixes was observed in comparison to that for the sand mixes. However, WRC ranged from 428 to 528 mL L-1 among the mixes, values considered close to ideal. In general, plant growth exhibited higher increases in mixes consisting of coconut fiber + sand or vermiculite, regardless of the irrigation level. Mixes of vermiculite + coconut fiber and sand + coconut fiber can be used to grow desert rose in pots, as long as irrigation is used to maintain the moisture content of the potting medium (mix) between 60-70% and 80-90% of the WRC.

scholarly journals Impact of Vermicompost on Vegetable Transplant Quality

HortScience ◽  
2005 ◽  
Vol 40 (7) ◽  
pp. 2020-2023 ◽  
Author(s):  
Lindsay C. Paul ◽  
James D. Metzger
Keyword(s):  
Plant Growth ◽  
Eisenia Fetida ◽  
Solanum Melongena ◽  
Field Performance ◽  
Organic Wastes ◽  
Microbial Metabolites ◽  
Valuable Contribution ◽  
Available Nutrients ◽  
Potting Media ◽  
Nutritional Balance

Vermicomposting is a promising method of transforming unwanted and virtually unlimited supplies of organic wastes into usable substrates. In this process, the digestive tracts of certain earthworm species (e.g., Eisenia fetida) are used to stabilize organic wastes. The final product is an odorless peat-like substance, which has good structure, moisture-holding capacity, relatively large amounts of available nutrients, and microbial metabolites that may act as plant growth regulators. For these reasons, vermicompost has the potential to make a valuable contribution to soilless potting media. The objective of this study was to evaluate the transplant quality and field performance of vegetable transplants grown in vermicompost. Tomato (Lycopersicon esculentum Mill.), eggplant (Solanum melongena L.), and pepper (Capsicum annuum L.) transplants were grown in a commercial soilless mix including 0%, 10%, or 20% (v/v) worm-worked cattle manure. Growth of vegetable transplants was positively affected by addition of vermicompost, perhaps by altering the nutritional balance of the medium. Transplant quality was improved in peppers and eggplants while tomato transplant quality was slightly reduced. There were no significant differences in field performance.

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