Eco-friendly polymeric material for horticulture application - Oliveira, M.; Mota, C.; Abreu, Ana S.; Machado, A. V.
Poly(lactic acid) (PLA), was mixed with wood fibers, coffee grounds, fertilizer and a foaming agent to developed a ecofriendly
material to be used in horticulture. The developed materials should have mechanical properties similar to PLA,
increasing biodegradability and lower price. The materials were prepared by melt processing in an internal mixer at 190??C
and were characterized by several techniques. The mechanical properties of the bio-composites, measured by flexural tests,
were similar to neat PLA even with a reduction of 40 wt. % of polymer. Biodegradation assessment by composting tests in
aerobic environment demonstrated that the green materials developed exhibited higher biodegradability than PLA.
Bio-composites containing wood...
The Ginkgo in America - Peter Del Tredici
During the eighteenth and nineteenth centuries, private estates played a central role in the development of American horticulture. Wealthy landowners enthusiastically planted everything they could get a hold of in a spirit of experimentation. Most of these gardens are now either badly overgrown or totally destroyed. The few that remain are fully mature and give little indication of the reckless abandon with which they were originally planted. Wodenethe, Henry Winthrop Sargent’s estate in Beacon, New York, is a good example of this horticultural experimentation. Between 1840 and 1882, Sargent planted hundreds of exotic species, many of which had never been...
Outline of greenhouse laboratory work / - Green, Samuel B.
1859-1910.; Strandberg, Ione,
MnU; Thatland, Eugene,
MnU; Mackintosh, R. S.
Mode of access: Internet.
Transactions. - Massachusetts Horticultural Society.
Beginning with the year 1920 The Reports formerly published as Part 2 of the Transactions, are published separately.
Johnson's Gardener's dictionary. - Johnson, George William,
1802-1886.; Dewar, D.
1860?-1905.; Wright, Charles Henry.
"List of works quoted": p. -1072.
Spray calendar, - Price, Robert Henderson,
1864-; Ferguson, Alexander McGowan,
1874-; Texas Agricultural Experiment Station.
Dept. of Horticulture and Mycology.
At head of title: Texas Agricultural Experiment Stations. Department of Horticulture and Mycology.
Annual report ... annual meeting. - Oregon Horticultural Society.; Oregon Lily Growers Association.
Proceedings of the Oregon Lily Growers Association.
Vol. 19-22 include proceedings of the Oregon Lily Growers Association, 1st-4th (1927-1930).
The relationship between learning style and level of cognition of instruction of horticulture teachers - Jamie Cano; Associate Professor; Susan Metzger; Extension Associate
The flexibility for learners to learn begins with the teacher's style of learning and the levels of cognition utilized in the classroom. Teachers have the basic capability to learn and teach; however, they are not all able to learn and teach effectively in the same exact way. The current study sought to determine the learning style and cognitive level of instruction of central Ohio horticulture teachers. The Florida Taxonomy of Cognitive Behaviors (FTCB) and the Group Embedded Figures Test (GEFT) were used to assess the level of cognitive instruction (FTCB) and the learning style (GEFT). The results indicated that 44...
EFFECT OF A POLYMER ON GROWTH AND YIELD OF SOYBEANS (Glycine max) GROWN IN A COARSE TEXTURED SOIL - S. Sivapalan; Wagga Wagga
The water holding capacity of coarse textured soils is low. It can be increased by the addition of soil conditioners such as the cross-linked polymers (PAM). A synthetic anionic acrylic copolymer (ALCOSORB®400) was mixed with a sandy soil at 5 different rates (0, 0.05, 0.1, 0.2 and 0.3 % PAM by weight) and subjected to 5 different irrigation regimes (3, 4, 5, 6 and 7 days interval between 2 irrigations). Soybean (Glycine max; CV Stephens) was grown during the period from January to March 2001 in pots containing 800 g of treated soil under glasshouse environment. Dry matter productions at...
A method for creating collaborative mobile learning trails. Convergence Workshop, Intersecting and integrating collaborative-mobile-inquiry learning - Kevin Walker
In this paper I report results from recent trials in which students used mobile devices to collaboratively create, edit and share trails. These included 9- to 10-year-olds as well as adult diploma students, in the subject of horticulture in botanic gardens. Findings indicate that a narrow subject focus and a manageable amount of data capture are appropriate in most cases; trails are most effective when framed with structured tasks and a narrow focus. Structure can be introduced through the use of collaboration scripts that specify tasks, roles and groups. Findings also show that audio is an important mode for communication...