FRINK Linked Data Fragments server

Matches in SemOpenAlex for { <https://semopenalex.org/work/W2029724841> ?p ?o ?g. }

• W2029724841 abstract "Human population pressure has forced smallholder farmers in some areas of the central plateau region of the Ethiopian highlands to cultivate plots located on slopes or hillsides having varying amounts of stone cover. The objectives of this pilot study were to determine if slope and(or) stone cover influenced tillage operations on smallholder farms in the Debre Birhan area of the Ethiopian highlands, and to examine the relationship between different soil/tillage-related factors and draft of the indigenous single-tined ard (maresha). This paper also briefly describes the traditional systems of cropping and soil management, and provides data on selected physical and chemical properties of soils found in the study area. A land classification (LC) system was developed to categorize plots according to the slope and stone cover. Surface stone cover of plots was calculated and a method of estimating subsurface stones was tested. Tillage measurements included plowing frequency or number (PN) per area per annum, soil moisture tension, plowing depth, furrow wedge of soil moved, area plowed, contour angle, and the speed of travel and pulling force exerted by oxen. Plots were located on slopes ranging from 0% to 23%. Degree of slope was a key factor in determining the acuteness of angle of the contour at which plowing is done prior to seed covering, but had no significant effect on maresha draft. Stone cover of plots ranged up to 27%, with individual stones moved by the ard weighing up to 2.5 kg. Plowing depth ranged from 10.1-15.3 cm for all PN across LC. Oxen travelled at speeds of 0.35-0.58 m s -1 . Mean values for draft of the maresha across LC ranged from 0.83-1.04 kN. Farmers plowed from 0.10-0.15 ha during a 5-6 h work period, irrespective of LC or PN. Soil moisture tension (range 16-33 kPa) was found not to have a significant effect on draft, due to tillage being carried out prior to the major and minor rains. Percent stone cover explained very little of the variation in implement draft (R 2 =0.10). Adding stone weight to the model increased R 2 slightly (0.22), but significance was low (P<0.16). Furrow wedge of soil displaced by the ard head accounted for most of the variation in draft of the maresha across all LC and PN (R 2 =0.75, P<0.008). The design and construction of the maresha allows it to be used equally well for tillage operations on plots having minimal or high stone cover which may be located on flat or gentle sloping land, or on steep hillsides." @default.
• W2029724841 created "2016-06-24" @default.
• W2029724841 creator A5032001592 @default.
• W2029724841 date "1999-01-01" @default.
• W2029724841 modified "2023-09-27" @default.
• W2029724841 title "Influence of slope and stone cover on tillage operations in the Ethiopian highlands" @default.
• W2029724841 cites W132772496 @default.
• W2029724841 cites W1966398159 @default.
• W2029724841 cites W1996445657 @default.
• W2029724841 cites W2001590079 @default.
• W2029724841 cites W2006453731 @default.
• W2029724841 cites W2006645874 @default.
• W2029724841 cites W2009912561 @default.
• W2029724841 cites W2019628806 @default.
• W2029724841 cites W2027110768 @default.
• W2029724841 cites W2059192561 @default.
• W2029724841 cites W2062689653 @default.
• W2029724841 cites W2062773547 @default.
• W2029724841 cites W2062948926 @default.
• W2029724841 cites W2073866672 @default.
• W2029724841 cites W2079340348 @default.
• W2029724841 cites W2085742408 @default.
• W2029724841 cites W2089668540 @default.
• W2029724841 cites W2091160252 @default.
• W2029724841 cites W2099656668 @default.
• W2029724841 cites W2160533570 @default.
• W2029724841 cites W2319586091 @default.
• W2029724841 cites W2324788417 @default.
• W2029724841 cites W2332015652 @default.
• W2029724841 cites W2505715968 @default.
• W2029724841 cites W2789402830 @default.
• W2029724841 cites W4246289461 @default.
• W2029724841 doi "https://doi.org/10.1016/s0167-1987(98)00183-4" @default.
• W2029724841 hasPublicationYear "1999" @default.
• W2029724841 type Work @default.
• W2029724841 sameAs 2029724841 @default.
• W2029724841 citedByCount "13" @default.
• W2029724841 countsByYear W20297248412016 @default.
• W2029724841 crossrefType "journal-article" @default.
• W2029724841 hasAuthorship W2029724841A5032001592 @default.
• W2029724841 hasConcept C127313418 @default.
• W2029724841 hasConcept C144024400 @default.
• W2029724841 hasConcept C149923435 @default.
• W2029724841 hasConcept C16397148 @default.
• W2029724841 hasConcept C166957645 @default.
• W2029724841 hasConcept C180429540 @default.
• W2029724841 hasConcept C187320778 @default.
• W2029724841 hasConcept C205649164 @default.
• W2029724841 hasConcept C2775962983 @default.
• W2029724841 hasConcept C2908647359 @default.
• W2029724841 hasConcept C39432304 @default.
• W2029724841 hasConcept C6557445 @default.
• W2029724841 hasConcept C76886044 @default.
• W2029724841 hasConcept C86803240 @default.
• W2029724841 hasConceptScore W2029724841C127313418 @default.
• W2029724841 hasConceptScore W2029724841C144024400 @default.
• W2029724841 hasConceptScore W2029724841C149923435 @default.
• W2029724841 hasConceptScore W2029724841C16397148 @default.
• W2029724841 hasConceptScore W2029724841C166957645 @default.
• W2029724841 hasConceptScore W2029724841C180429540 @default.
• W2029724841 hasConceptScore W2029724841C187320778 @default.
• W2029724841 hasConceptScore W2029724841C205649164 @default.
• W2029724841 hasConceptScore W2029724841C2775962983 @default.
• W2029724841 hasConceptScore W2029724841C2908647359 @default.
• W2029724841 hasConceptScore W2029724841C39432304 @default.
• W2029724841 hasConceptScore W2029724841C6557445 @default.
• W2029724841 hasConceptScore W2029724841C76886044 @default.
• W2029724841 hasConceptScore W2029724841C86803240 @default.
• W2029724841 hasLocation W20297248411 @default.
• W2029724841 hasOpenAccess W2029724841 @default.
• W2029724841 hasPrimaryLocation W20297248411 @default.
• W2029724841 hasRelatedWork W1828594592 @default.
• W2029724841 hasRelatedWork W1991285164 @default.
• W2029724841 hasRelatedWork W1994109567 @default.
• W2029724841 hasRelatedWork W2030039284 @default.
• W2029724841 hasRelatedWork W2035658327 @default.
• W2029724841 hasRelatedWork W2035823680 @default.
• W2029724841 hasRelatedWork W2049790053 @default.
• W2029724841 hasRelatedWork W2053999305 @default.
• W2029724841 hasRelatedWork W2065031405 @default.
• W2029724841 hasRelatedWork W2070692307 @default.
• W2029724841 hasRelatedWork W2092970388 @default.
• W2029724841 hasRelatedWork W2125129723 @default.
• W2029724841 hasRelatedWork W2142041998 @default.
• W2029724841 hasRelatedWork W2146314606 @default.
• W2029724841 hasRelatedWork W2461769138 @default.
• W2029724841 hasRelatedWork W2615035855 @default.
• W2029724841 hasRelatedWork W2948998444 @default.
• W2029724841 hasRelatedWork W2186423254 @default.
• W2029724841 hasRelatedWork W2199256494 @default.
• W2029724841 hasRelatedWork W299248098 @default.
• W2029724841 isParatext "false" @default.
• W2029724841 isRetracted "false" @default.
• W2029724841 magId "2029724841" @default.
• W2029724841 workType "article" @default.