scholarly journals Laboratory and small-scale field tests of larvicides and larvivorous fishes against Anopheles sundaicus larvae at Perupuk Village, North Sumatra, Indonesia

1986 ◽  
Vol 37 (2) ◽  
pp. 105-112 ◽  
Author(s):  
Takaya IKEMOTO ◽  
SUMITRO ◽  
Willem PANJAITAN ◽  
Toshiro SHIBUYA
Keyword(s):  
Field Tests ◽  
Small Scale ◽  
Scale Field ◽  
North Sumatra

scholarly journals Evaluation of Energy Recovery from Laboratory Experiments and Small-scale Field Tests of Underground Coal Gasification (UCG)

2015 ◽  
Vol 131 (5) ◽  
pp. 203-218 ◽  
Author(s):  
Faqiang SU ◽  
Ken-ichi ITAKURA ◽  
Gota DEGUCHI ◽  
Koutarou OHGA ◽  
Mamoru KAIHO
Keyword(s):  
Energy Recovery ◽  
Laboratory Experiments ◽  
Coal Gasification ◽  
Field Tests ◽  
Small Scale ◽  
Underground Coal Gasification ◽  
Scale Field

scholarly journals Potential of an Indigenous Fungus, Plectosporium tabacinum, as a Mycoherbicide for Control of Arrowhead (Sagittaria trifolia)

Plant Disease ◽  
1998 ◽  
Vol 82 (6) ◽  
pp. 657-660 ◽  
Author(s):  
Young Ryun Chung ◽  
Suk Jin Koo ◽  
Heung Tae Kim ◽  
Kwang Yun Cho
Keyword(s):  
Foliar Spray ◽  
Field Tests ◽  
Potato Dextrose Agar ◽  
Small Scale ◽  
Conidial Suspension ◽  
Corn Meal ◽  
Weed Species ◽  
Potato Dextrose Broth ◽  
Leaf Stage ◽  
Scale Field

An isolate of the indigenous fungus Plectosporium tabacinum was isolated from arrowhead (Sagittaria trifolia) in Yusung, Korea in 1990 and evaluated in laboratory and growth chamber tests as a potential mycoherbicide. The fungus grew comparatively slowly on potato dextrose agar and corn meal agar, attaining a diameter of 65 mm after 12 days at 25°C. Conidia were mass-produced in shake-cultures or in a fermentor using potato dextrose broth containing yeast extract (0.5%, wt/vol) at 25°C. When arrowhead seedlings at the 2- to 3-leaf stage were inoculated with conidial suspensions (2 × 107 conidia/ml) and incubated in a dew chamber for 18 h at 25°C, the plants developed small, brown spots on the leaves and petioles in 2 days, and were blighted completely within 7 days after inoculation. This effect was consistent on arrowhead plants from the 2- to 5-leaf stage. Another arrowhead species, S. pygmaea, was as susceptible as S. trifolia to the pathogen. Several crops, including rice, barley, and wheat and 34 other common weed species, were immune. In small-scale field tests in paddy fields during the summers of 1992 and 1993, a mean reduction of 71.3% in the number of arrowhead plants was observed following a foliar spray of a conidial suspension (107 conidia/ml). These results indicate that P. tabacinum has potential as a selective mycoherbicide for arrowhead control.

Small-Scale Field Tests with Dermally Applied Animal Systemic Insecticides for Control of the Common Cattle Grub13

1970 ◽  
Vol 63 (4) ◽  
pp. 1233-1241 ◽  
Author(s):  
R. O. Drummond ◽  
W. J. Gladney ◽  
T. M. Whetstone ◽  
S. E. Ernst
Keyword(s):  
Field Tests ◽  
Small Scale ◽  
Systemic Insecticides ◽  
Scale Field ◽  
The Common

Field Installation Tests of Monopod Suction Pile and Tripod Suction Buckets

2013 ◽  
Author(s):  
D. Kwag ◽  
Myounghak Oh ◽  
OSoon Kwon ◽  
S. Bang
Keyword(s):  
Field Tests ◽  
Full Scale ◽  
Small Scale ◽  
Site Conditions ◽  
Test Results ◽  
Scale Field ◽  
Penetration Force

Small-scale field tests on a monopod suction pile with and without the detachable penetration apparatus (DPA) and tripod suction buckets have been performed. One of the objectives of the field tests was to identify the capability of the DPA at small-scale and to obtain useful information for planned future full-scale field tests. The DPA which has been developed to control and increase the accuracy of the verticality of monopod suction piles during installation. In addition, it can also contribute to increase the penetration force under certain conditions. Included in this paper are the details of the small-scale field tests, including the site conditions, suction pile details, DPA details, installation, instrumentation equipment, and test results. Results indicate that the tripod suction buckets have a significant advantage over the monopod suction pile for verticality control and that the newly developed DPA is fully capable of enhancing the verticality control of the monopod suction pile during installation.

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