Rapid assessment of the rate of nitrogen immobilisation in organic components of potting media: I. Method development

The availability of organic components of potting media is limited due to supply and shipping costs. Disposal of solid waste has also become a serious problem for many municipalities. The utilization of solid waste compost in agricultural production promises to be a solution for both concerns. The objective of this experiment was to determine the efficacy of sol id waste compost from Miami, Dade County, Florida as a propagation medium for vegetative reproduction of ornamental and landscape plants.Cuttings of Podocarpus macrophylla, Chrysobalanus icaro, and Impatiens spp. 1-13 cm long, treated with .2% NAA ppm IBA were rooted in media composed of sphagnum peatmoss: perlite (1:1) or Agrisoil (TM) solid waste compost: perlite (1:). Cutting rooted well in both media. Data included number of roots and root weight.

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EFFICACY OF SOLID WASTE COMPOST AS A PROPAGATION MEDIUM

HortScience ◽

10.21273/hortsci.25.9.1107 ◽

1990 ◽

Vol 25 (9) ◽

pp. 1107G-1107

Author(s):

S. D. Verkade ◽

G. E. Fitzpatrick

Keyword(s):

Solid Waste ◽

Agricultural Production ◽

Vegetative Reproduction ◽

Root Weight ◽

Dade County ◽

Organic Components ◽

Landscape Plants ◽

Potting Media ◽

Propagation Medium ◽

Media Data

The availability of organic components of potting media is limited due to supply and shipping costs. Disposal of solid waste has also become a serious problem for many municipalities. The utilization of solid waste compost in agricultural production promises to be a solution for both concerns. The objective of this experiment was to determine the efficacy of sol id waste compost from Miami, Dade County, Florida as a propagation medium for vegetative reproduction of ornamental and landscape plants. Cuttings of Podocarpus macrophylla, Chrysobalanus icaro, and Impatiens spp. 1-13 cm long, treated with .2% NAA ppm IBA were rooted in media composed of sphagnum peatmoss: perlite (1:1) or Agrisoil (TM) solid waste compost: perlite (1:). Cutting rooted well in both media. Data included number of roots and root weight.

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Zone-axis ALCHEMI for the rapid assessment of site occupancies in garnets

Proceedings, annual meeting, Electron Microscopy Society of America ◽

10.1017/s0424820100144905 ◽

1986 ◽

Vol 44 ◽

pp. 706-707

Author(s):

M.T. Otten ◽

P.R. Buseck

Keyword(s):

Single Crystals ◽

Rapid Assessment ◽

Site Occupancy ◽

Zone Axis ◽

Synthetic Compounds ◽

X Ray ◽

Large Group ◽

Crystallographic Planes

ALCHEMI (Atom Location by CHannelling-Enhanced Microanalysis) is a TEM technique for determining site occupancies in single crystals. The method uses the channelling of incident electrons along specific crystallographic planes. This channelling results in enhanced x-ray emission from the atoms on those planes, thereby providing the required site-occupancy information. ALCHEMI has been applied with success to spinel, olivine and feldspar. For the garnets, which form a large group of important minerals and synthetic compounds, the channelling effect is weaker, and significant results are more difficult to obtain. It was found, however, that the channelling effect is pronounced for low-index zone-axis orientations, yielding a method for assessing site occupancies that is rapid and easy to perform.

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