Green manure amendments and management of root-knot nematodes on potato in the Pacific North West of USA

Cable tensile forces in winch-assist harvesting have been investigated in order to assess the safety concerns of the technology. However, the literature is lacking, particularly in regards to the impact of winch design. In this study, a Summit Winch Assist tethering a feller-director on ground slopes up to 77% was monitored for four days. The cable tensile forces were simultaneously recorded at the harvesting and anchor machine at a frequency of 100 Hz. Cameras and GNSS devices enabled a time study of the operations and the recording of machine positions. Winch functionality and design were disclosed by the manufacturer and used for the interpretation of the results. The cable tensile forces reached 296 kN at the harvesting machine and 260 kN at the anchor machine. The slow negotiation of obstacles while moving downhill recorded the highest peaks, mainly due to threshold settings of the winch in the brake system activation. Lower but significant peaks were also recorded during stationary work tasks. The peaks, however, were limited to a few events and never exceeded the endurance limit of the cable. Overall, the study confirmed recent findings in cable tensile force analysis of active winch-assist operations and provided evidence of the underlaying mechanisms that contribute to cable tensile forces.

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Evaluation of Green Manure Amendments for the Management of Fusarium Basal Rot (Fusarium oxysporumf.sp.cepae) on Shallot

International Journal of Agronomy ◽

10.1155/2014/150235 ◽

2014 ◽

Vol 2014 ◽

pp. 1-6 ◽

Cited By ~ 1

Author(s):

Assefa Sintayehu ◽

Seid Ahmed ◽

Chemeda Fininsa ◽

P. K. Sakhuja

Keyword(s):

Green Manure ◽

Agricultural Research ◽

Disease Incidence ◽

Limiting Factors ◽

Lepidium Sativum ◽

Ethiopian Mustard ◽

Basal Rot ◽

Fusarium Basal Rot ◽

Manure Amendments

Shallot (Allium cepaL. var.ascalonicum) is the most traditional vegetable crop in Ethiopia. Shallot is susceptible to a number of diseases that reduce yield and quality, among which fusarium basal rot (FBR) caused byFusarium oxysporumf.sp.cepae (Foc)is one of the most important yield limiting factors in Ethiopia. The present study was designed to evaluate the effectiveness ofBrassicacrops for the management of shallot FBR on shallot. The experiments were carried out at Debre Zeit Agricultural Research Center using cabbage (Brassica oleracea), garden cress (Lepidium sativum), Ethiopia mustard (B. carinata), and rapeseed (B. napus). The evaluations were done underin vitroand greenhouse conditions. Underin vitrotest condition it was confirmed that extracts of Ethiopian mustard and rapeseed showed higher inhibition on the growth ofFocpathogen compared to control. Data on seedling emergence, plant height, plant stand, disease incidence, severity, cull bulbs, and bulb weight were collected in greenhouse experiment. The green manure amendments of rapeseed and Ethiopian mustard significantly reduced disease incidence by 21% and 30% and disease severity by 23% and 29%, respectively. However the plant emergency was not significantly different among treatments in greenhouse test. These results indicated that Ethiopian mustard and rapeseed crops have potential as green manure for the management of FBR disease of shallot crop.

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Race and Restriction: Anti-Asian Immigration Pressures in the Pacific North-west of America during the Progressive Era, 1885-1924

History ◽

10.1111/1468-229x.00251 ◽

2003 ◽

Vol 88 (289) ◽

pp. 53-73 ◽

Cited By ~ 1

Author(s):

Kristofer Allerfeldt

Keyword(s):

Progressive Era ◽

North West ◽

Asian Immigration ◽

The Pacific

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Manifest Dominion

American Civil Wars ◽

10.5149/northcarolina/9781469631097.003.0005 ◽

2017 ◽

Author(s):

Richard Huzzey

Keyword(s):

United Kingdom ◽

Travel Writing ◽

Slave Trade ◽

Post Colonial ◽

North West ◽

Imperial Authority ◽

Competing Interests ◽

Political Commentary ◽

The United Kingdom ◽

The Pacific

This chapter analyses how Britons responded to the febrile political and social crises of the Americas in the 1860s. Although the American Civil War created a particular challenge – and great confusion – to observers in the United Kingdom, that conflict was one of a wider range of concerns in balancing the demands of rival imperial and new post-colonial powers to preserve British influence. Considering opinions expressed travel writing and political commentary, the chapter argues that Britons struggled to balance competing interests – in economic affairs, in geopolitical strategy, in imperial authority, and in suppression of the slave trade – to maintain a manifestly uncertain dominion over the Americas. Touching on British concerns stretching from the Mosquito Coast to the Pacific north--west, the chapter suggests that crises in the Americas illuminated diverse priorities and anxieties.

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Snag Management on National Forests in the Pacific Northwest—1984

Western Journal of Applied Forestry ◽

10.1093/wjaf/1.2.41 ◽

1986 ◽

Vol 1 (2) ◽

pp. 41-43

Author(s):

Evelyn L. Bull ◽

Jack Ward Thomas ◽

Kirk Horn

Keyword(s):

Pacific Northwest ◽

Forest Service ◽

National Forests ◽

Usda Forest Service ◽

North West ◽

West Region ◽

The Pacific ◽

Management Recommendations

Abstract A questionnaire was sent to each Ranger District in the Pacific North-west Region of the USDA Forest Service to get information on present snag-management programs. Ninety-five percent of the responding Ranger Districts left snags at levels that ranged from 0.15 snags/ha (0 06/ac) to 12-15 snags/ha (5-6/ac) on all forested lands. Live trees were intentionally left as future snags on 93% of the Ranger Districts. Live trees were killed to create snags on 41% of the Ranger Districts. Management recommendations are made as to the kind of snags to leave and methods of maintaining them. West. J. Appl. For. 1:41-43, April 1986

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CHAPTER VIII. THE PACIFIC FUR COMPANY AND ASTORIA: FROM THE OUTBREAK OF THE WAR TO THE FINAL RELINQUISHMENT OF ASTORIA TO THE NORTH WEST COMPANY, 1812-1818

Harvard Studies in Business History 1 ◽

10.4159/harvard.9780674600126.c15 ◽

2014 ◽

Keyword(s):

North West ◽

The North ◽

The Pacific

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IX. Contributions to terrestrial magnetism.—No. IV

Philosophical Transactions of the Royal Society of London ◽

10.1098/rstl.1843.0010 ◽

1843 ◽

Vol 133 ◽

pp. 113-143 ◽

Cited By ~ 2

Keyword(s):

Pacific Ocean ◽

West Coast ◽

China Seas ◽

North West ◽

The North ◽

The Pacific ◽

The Pacific Ocean ◽

The Times ◽

The China Seas

In the present number of these Contributions, I resume the consideration of Captain Sir Edward Belcher’s magnetic observations, of which the first portion, viz. that of the stations on the north-west coast of America and adjacent islands, was discussed in No. II. The return to England of Her Majesty’s ship Sulphur by the route of the Pacific Ocean, and her detention for some months in the China Seas, have enabled Sir Edward Belcher to add magnetic determinations at thirty-two stations to those at the twenty-nine stations previously recorded. In the notice of the earlier observations, a provisional coefficient was employed in the formula for the temperature corrections of the results with the intensity needles, as no experiments had then been made for the determination of their individual coefficients. As soon therefore as Sir Edward Belcher had completed the observation of the times of vibration of those needles at Woolwich, as the concluding station of the series made with them, Lieut. Riddell, R. A. undertook the determination of their several coefficients, which was performed in the manner and with the results described in the subjoined memorandum.

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