Effects of Intercropping Young Plants of the Compact Arabica Coffee Hybrid Cultivar Ruiru 11 with Potatoes, Tomatoes, Beans and Maize on Coffee Yields and Economic Returns in Kenya

1993 ◽  
Vol 29 (3) ◽  
pp. 373-377 ◽  
Author(s):  
J. M. Njoroge ◽  
K. Waithaka ◽  
J. A. Chweya
Keyword(s):  
Economic Benefits ◽  
Coffee Bean ◽  
Dry Beans ◽  
Economic Returns ◽  
Marginal Rate ◽  
Economic Return ◽  
Arabica Coffee ◽  
Hybrid Cultivar ◽  
Bean Size

SUMMARYThe effects of intercropping young plants of the compact arabica coffee hybrid cultivar Ruiru 11 with potatoes, tomatoes, maize and Phaseolus (dry) beans were studied between 1987 and 1989 at Ruiru in Kenya. Yields of clean (hulled) coffee were reduced by the maize intercrop by 59–100%. Coffee bean size, and raw, roast and liquor quality were not significantly affected by the potato, tomato and bean intercrops, which gave positive net economic benefits. Potatoes planted between all the coffee rows gave the largest marginal rate of economic return, followed by tomatoes in combination with beans. The technically and economically viable intercrops for coffee were potatoes, tomatoes, beans, and tomatoes in combination with beans.Siembra simultánea de café Araébica y cultivos para la alimentatión

Economic Benefits of Selected Granular Insecticides for Control of Lesser Cornstalk Borer in Nonirrigated Peanut1

1989 ◽  
Vol 16 (2) ◽  
pp. 82-87 ◽  
Author(s):  
M. E. Gilreath ◽  
J. E. Funderburk ◽  
D. W. Gorbet ◽  
D. J. Zimet ◽  
R. E. Lynch ◽  
...  
Keyword(s):  
Seed Yield ◽  
Growing Season ◽  
Economic Benefits ◽  
Early Flowering ◽  
Economic Returns ◽  
Peanut Seed ◽  
Economic Return ◽  
Yield And Quality ◽  
Elasmopalpus Lignosellus ◽  
Costs Of Treatment

Abstract Selected prophylactic applications of granular insecticides were evaluated during 1985, 1986, and 1987 in North Florida for efficacy against lesser cornstalk borer (LCB), Elasmopalpus lignosellus (Zeller), effects on peanut seed yield and quality, and net economic return. Chlorpyrifos 15G, ethoprop 15G, and fonofos 10G were applied as band treatments over the row at various rates and times during the growing season. Dichloropropene was applied for separation of nematode effects alone and in combination with selected insecticides as an injection treatment 6 or 7 days before planting. Mean percentage of peanut plants infested with LCB larvae did not exceed 5% in any treatment, including the control, in any year. Mean densities of emerging LCB adults estimated from over-the-row wire traps did not exceed 1.2. moths per meter of row from early flowering until one month after scheduled harvest in any treatment during the study. No differences in LCB densities were detected among treatments. However, several treatments significantly improved peanut seed yield or quality in individual years and resulted in economic returns greater than the costs of treatment.

scholarly journals Prediction of Caffein Content of Arabica Coffee Bean by Near Infrared Spectroscopy

2016 ◽  
Vol 04 (2) ◽  
pp. 1-8
Author(s):  
Rini Rosita ◽  
◽  
I Budiastra ◽  
Sutrisno Sutrisno ◽  
◽  
...  
Keyword(s):  
Infrared Spectroscopy ◽  
Near Infrared Spectroscopy ◽  
Near Infrared ◽  
Coffee Bean ◽  
Arabica Coffee

scholarly journals Case analysis on indirect economic benefits of industrial building construction

2021 ◽  
Vol 336 ◽  
pp. 09020
Author(s):  
Yuan Qi ◽  
Ning Kang
Keyword(s):  
Economic Benefits ◽  
Industrial Building ◽  
Literature Mining ◽  
Economic Returns ◽  
Building Models ◽  
Modeling Software ◽  
The Index System ◽  
The Impact ◽  
Assembly Rate ◽  
Prefabricated Building

In this paper, the economic benefits of prefabricated buildings which are not directly reflected in the economic returns of investors are called indirect economic benefits. Based on the literature mining of the indirect economic relationship of a large number of prefabricated buildings, this paper constructs an analysis framework of indirect environment and social and economic benefits. Through BIM modeling software, the three prefabricated building models are modified into traditional building models. The indirect economic benefits of the project are calculated by using the index system. The functional relationship between the indirect economic benefits of prefabricated buildings and the assembly rate is established by using the SSPS statistical data processing software, which more intuitively shows the law of the indirect economic benefits of prefabricated buildings with the assembly rate It shows the impact of prefabricated building on environment and society, which is of great significance for the harmony between prefabricated building and society and environment, and the healthy and sustainable development of construction industry.

Influence of timing of Palmer amaranth control in dicamba-resistant cotton on yield and economic return

2020 ◽  
Vol 34 (5) ◽  
pp. 682-688
Author(s):  
Matthew D. Inman ◽  
David L. Jordan ◽  
Matthew C. Vann ◽  
Andrew T. Hare ◽  
Alan C. York ◽  
...  
Keyword(s):  
Resistance Management ◽  
Residual Activity ◽  
Palmer Amaranth ◽  
Cotton Yield ◽  
Economic Returns ◽  
Economic Return ◽  
Early Season ◽  
Cotton Belt ◽  
The U.S ◽  
Made In

AbstractGlyphosate-resistant (GR) Palmer amaranth continues to be challenging to control across the U.S. cotton belt. Timely application of POST herbicides and herbicides applied at planting or during the season with residual activity are utilized routinely to control this weed. Although glyphosate controls large Palmer amaranth that is not GR, herbicides such as glufosinate used in resistance management programs for GR Palmer amaranth must be applied when weeds are small. Dicamba can complement both glyphosate and glufosinate in controlling GR and glyphosate-susceptible (GS) biotypes in resistant cultivars. Two studies were conducted to determine Palmer amaranth control, weed biomass, and cotton yield, as well as to estimate economic net return when herbicides were applied 2, 3, 4, and 5 wk after planting (WAP). In one experiment POST-only applications were made. In the second experiment PRE herbicides were included. In general, Palmer amaranth was controlled at least 98% by herbicides applied at least three times regardless of timing of application or herbicide sequence. Glyphosate plus dicamba applied at 4 and 5 WAP controlled Palmer amaranth similarly compared to three applications by 8 WAP; however, yield was reduced 23% because of early-season interference. The inclusion of PRE herbicides benefited treatments that did not include herbicides applied 2 or 3 WAP. Glyphosate plus dicamba applied as the only herbicides 5 WAP provided 69% control of Palmer amaranth. PRE herbicides increased control to 96% for this POST treatment. Economic returns were similar when three or more POST applications were applied, with or without PRE herbicides.

Efficacy of reduced-rate herbicide combinations in dry-seeded rice (Oryza sativa) on alluvial clay soil

Weed Science ◽  
1997 ◽  
Vol 45 (1) ◽  
pp. 151-157 ◽  
Author(s):  
David L. Jordan
Keyword(s):  
Water Management ◽  
Oryza Sativa ◽  
Environmental Conditions ◽  
Management Practices ◽  
Clay Soil ◽  
Rice Yield ◽  
Economic Returns ◽  
Economic Return ◽  
Reduced Rate ◽  
Alluvial Clay

Research was conducted from 1993 through 1995 to evaluate barnyardgrass control, rice yield, and estimated economic return with POST applications of propanil or propanil + molinate applied alone or with quinclorac. Herbicides were applied under a variety of water management practices and environmental conditions at rates ranging from 1.1 to 3.4, 1.7 to 5.6, and 0.17 to 0.40 kg ai ha−1for propanil, propanil + molinate, and quinclorac, respectively. Reduced-rate combinations of propanil or propanil + molinate with reduced rates of quinclorac controlled small, actively growing barnyardgrass and provided yields and estimated economic returns similar to combinations of these herbicides at higher rates when irrigated. When herbicides were applied to larger barnyardgrass, propanil + molinate at 5.6 kg ha−1was more effective than propanil at 3.4 kg ha−1or quinclorac at 0.40 kg ha−1applied alone. Propanil + molinate applied with quinclorac at 0.28 or 0.40 kg ha−1controlled barnyardgrass more effectively and provided higher yields and greater estimated economic returns than propanil at 3.4 kg ha−1, propanil + molinate at 5.6 kg ha−1, quinclorac at 0.17, 0.28, or 0.40 kg ha−1, or combinations of propanil and quinclorac.

scholarly journals Effect of Maize Stover Application as Soil Mulch on Yield of Arabica coffee (Coffee arabica L., Rubiaceae) at Western Hararghe Zone, Eastern Ethiopia

2013 ◽  
Vol 2 (3) ◽  
pp. 15
Author(s):  
Zelalem Bekeko
Keyword(s):  
Analysis Of Variance ◽  
Block Design ◽  
Coffee Bean ◽  
Eastern Ethiopia ◽  
Maize Stover ◽  
Arabica Coffee ◽  
Coffee Yield ◽  
Significant Difference ◽  
Bean Yield ◽  
Dry Seasons

<p>An experiment was conducted during the dry seasons in western Hararghe Zone, Eastern Ethiopia at the Haramaya University Chiro Campus to determine the effect of maize stover as soil mulch on yield of Arabica coffee. Five levels of maize stover as soil mulch at a rate of: 0t/ha, 2t/ha, 4t/ha, 6t/ha and 8t/ha were applied in randomized complete block design with four replications from 2008 to 2011. Yield data was recorded during specific phenological stage of the plant. Result from the analysis of variance from the application of maize stover as soil mulch over years showed the presence of significant difference among treatments on bean yield of Arabica coffee. The highest bean yield (1070 kg/ha) and the lowest bean yield (520 kg/ha) were noted at 8 tons/ha and 0 ton/ha, respectively. Similarly, the pooled analysis of variance over seasons corroborated that the effect of maize stover as a soil mulch at a rate of 6t/ha and 8t/ha showed the presence of no significant difference on bean yield of coffee (p&lt;0.05). The result of the present study also elucidated that, the unmulched control plots had the lowest coffee bean yield. While application of 8 tons/ha of maize stover as a soil mulch significantly increased coffee yield both in 2010 and 2011 cropping seasons. Therefore, on the basis of these results, it can be concluded that applying maize stover as soil mulch during the dry seasons at west Hararghe can help to sustain Arabica coffee production. Thus, it is recommended that application of 8tons/ha maize stover as soil mulch can significantly increase the yield of Arabica coffee and sustains its productivity over years.</p>

Climatic factors directly impact the volatile organic compound fingerprint in green Arabica coffee bean as well as coffee beverage quality

2012 ◽  
Vol 135 (4) ◽  
pp. 2575-2583 ◽  
Author(s):  
B. Bertrand ◽  
R. Boulanger ◽  
S. Dussert ◽  
F. Ribeyre ◽  
L. Berthiot ◽  
...  
Keyword(s):  
Organic Compound ◽  
Volatile Organic Compound ◽  
Climatic Factors ◽  
Coffee Bean ◽  
Arabica Coffee ◽  
Volatile Organic

Economic returns to households participating in different models of commercial tree plantations in Lao PDR

2020 ◽  
Vol 22 (1) ◽  
pp. 132-152 ◽  
Author(s):  
A. van der Meer Simo ◽  
P. Kanowski ◽  
K. Barney
Keyword(s):  
Land Use Planning ◽  
Planning Process ◽  
Lao Pdr ◽  
Economic Benefits ◽  
Tree Plantations ◽  
Economic Returns ◽  
Tree Plantation ◽  
Land Sharing ◽  
Household Labour ◽  
Benefits And Costs

Four tree plantation models implemented in Lao PDR and a hypothetical model were compared in terms of the projected economic benefits and those realised by participating rural households, and households' attitudes to further plantation expansion. Models comprised two forms of land-sharing plantation concessions, and contract and independent tree growing. Benefits and costs over the plantation cycle were used to calculate net present values. Tree plantations contributed most to household livelihoods when companies engaged in a participatory land use planning process, where opportunities for household labour were greatest, and where plantation models allowed for intercropping by households. In contrast, where contracts were not honoured, crops cannot be grown jointly, or labour opportunities are limited, returns were not competitive with traditional swidden agriculture. Households were generally open to expansion of more beneficial models. These results suggest a set of principles for developing locally appropriate and beneficial tree plantation systems in Lao PDR.

scholarly journals Seasonal cycles in weight and condition in Atlantic cod (Gadus morhua L.) in relation to fisheries

2005 ◽  
Vol 62 (5) ◽  
pp. 1006-1015 ◽  
Author(s):  
L.G.S. Mello ◽  
G.A. Rose
Keyword(s):  
Gadus Morhua ◽  
Physiological Condition ◽  
Atlantic Cod ◽  
Management Strategies ◽  
Maximum Yield ◽  
Product Yield ◽  
Economic Benefits ◽  
Hepatosomatic Index ◽  
Economic Returns ◽  
Condition Indices

Abstract Seasonal cycle in weight and physiological condition of Atlantic cod (Gadus morhua) influenced productivity and economic impacts of the cod fishery in Placentia Bay, Newfoundland. Condition indices (Fulton's K condition factor and hepatosomatic index – HSI) were lowest during the spawning season (spring) and increased rapidly during the postspawning period, reaching maximum values by fall (K and HSI increased on average 24% and 82% between spring and fall, respectively). Somatic weight and condition indices varied seasonally. Condition indices were correlated with an industry index of product yield. Historically, cod fisheries have been prosecuted during all seasons, but simulations of 1997–1999 fisheries indicate that a fall fishery (period of peak physiological condition) resulted in a 8–17% decrease in the number of cod removed from the stock while maintaining the same weight-based quotas, and profiting from maximum yield and better product quality. Spring and summer fisheries resulted in lower yield (6%) and quality (5–26%) of fish products by weight. Seasonal biological cycles could be used as templates for management strategies that promote fisheries conservation and economic benefits by harvesting fish during periods when biological impacts are minimal and economic returns maximal.

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