Consulta: subjectFacets:"Benefit-cost ratio"
Registros recuperados: 12
Data/hora: 11/06/2024 10:04:15

Use of Adjuvants to Optimize the Activity of Two Broad-Spectrum Herbicides for Weed Control in Wheat
Provedor de dados: Planta Daninha
Autores: ABBAS,N.; TANVEER,A.; AHMAD,T.; AMIN,M.
ABSTRACT: Herbicide resistance development among weeds, environmental contamination and health concerns due to the overuse of herbicides have led researchers to focus on ways to reduce herbicides to be sprayed for weed management. Adjuvants are best suited for that purpose, as they accomplish a crucial role in achieving satisfactory control of weeds by maximizing herbicidal activity. A two-year field investigation was carried out at the Agronomic Research Area, in the University of Agriculture, in Faisalabad, Pakistan during the winter of 2014 and 2015, with the objective to optimize the activity of two broad-spectrum herbicides at reduced dose (75% of the label mentioned rate) for weed control in wheat. Minimum weed density, weed dry weight and NPK uptake...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Triticum aestivum L.; Adjuvants; Grain yield; Benefit-cost ratio.
Ano: 2018
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0100-83582018000100325

Naphthalene Acetic Acid and Irrigation Regimes Influence Paddy Yield and its Economics under Arid Conditions
Provedor de dados: Planta Daninha
Autores: HASNAIN,Z.; BAKHSH,I.; HUSSAIN,I.; SHEHERYAR,; E.A.,KHAN.
ABSTRACT: The study aimed to highlight the impact of naphthalene acetic acid (NAA) and irrigation regimes on the productivity of coarse rice under agro-ecological conditions of Dera Ismail Khan, Pakistan. The experiment was comprised of two factors with four levels (0, 60, 90, 120 mL ha-1) of NAA and irrigation at the depths (60, 75, 90 and 105 cm) of soil profile. The data was interpreted to observe the plant height (cm), productive tillers (m-2), sterility percentage (%), biological yield (t ha-1), and grain yield (t ha-1) of coarse rice. The benefit cost ratio (BCR) was also calculated. The results indicated that the application of NAA was found very effective in improving paddy yield and hence resulted in better BCR value. The maximum paddy yield was...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Agronomic efficiency; Soil moisture; Growth regulator; Benefit-cost ratio; Oryza sativa.
Ano: 2020
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0100-83582020000100207

Weed Management in Direct Seeded Rice Grown under Varying Tillage Systems and Alternate Water Regimes
Provedor de dados: Planta Daninha
Autores: RIAZ,A.; KHALIQ,A.; FIAZ,S.; NOOR,M.A.; NAWAZ,M.M.; MAHBOOB,W.; ULLAH,S.
ABSTRACT: In direct seeded rice (DSR), flushes of weeds are encountered, and mostly subsequent herbicides need to apply to control weeds that appear later. A farmer friendly approach was hypothesized in present study to integrate the management strategies for water, soil and cost effective weed free rice production. Efficacy of various herbicides in weed control to improve the performance of aerobic rice grown under varying tillage and alternate water regimes was evaluated. Five weed management techniques (weedy check, weed-free, pendimethalin followed by manual weeding, pendimethalin + bispyribac sodium (BS) + bensulfuron (B) and pendimethalin + MCPA) were carried out within the alternate wetting and drying (AWD) regimes (15 and 20 cm depth) under two...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Aerobic rice; Herbicides; Irrigation management; Benefit-cost ratio.
Ano: 2018
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0100-83582018000100259

Control of Footrot in Small Ruminants of Nepal
Provedor de dados: Research in Agricultural & Applied Economics (AgEcon Searh)
Autores: McLeod,   Ross.
Footrot, a bacterial disease which attacks the feet of sheep and goats causing lameness and high levels of flock mortality, was endemic in the western districts of Nepal. As a result of the collaborative efforts between Nepalese, Australian and British scientists within ACIAR projects AS2/1991/017 and AS2/1996/021, the virulent form of this disease has been eradicated from the livestock industries of the country. The economic benefits stemming from this achievement are described and quantified in this report. Over the 1993–2022 period, ACIAR invested $A1.5 million in research designed to improve the management of footrot in Nepal. Based on levels of disease prevalence reported at the beginning of the projects and a probability of the disease spreading to...
Tipo: Book
Palavras-chave: Footrot; Ruminants; Bacterial disease; Nepal; Australia; Livestock; Economic benefits; Net present value; Benefit-cost ratio; Disease eradication; Farm Management; International Development; Livestock Production/Industries; Production Economics.
Ano: 2001
URL: http://purl.umn.edu/47694

Protecting the Booroolong Frog in the Namoi Catchment: A Cost-Benefit Analysis
Provedor de dados: Research in Agricultural & Applied Economics (AgEcon Searh)
Autores: Greyling,   Tertius; Bennett,   Jeffrey W.
The Booroolong frog project in the Namoi Catchment represents an environmental investment to protect the species and around 10.7 kilometres of its habitat in the catchment. The project’s benefit-cost ratio (BCR) of 8.6 indicates that the benefits outweigh the costs by a significant margin. The measures introduced by landholders, at relatively low cost, should therefore result in a significant return on investment upon project completion in 10 years time. The benefits are estimated using a choice modelling study which was recently developed for the valuation of investment in natural resource management in the Namoi Catchment. As this is a largely ex ante cost-benefit analysis, the BCR is subject to uncertainty associated with assumptions which had to be...
Tipo: Report
Palavras-chave: Cost-benefit analysis; Benefit-cost ratio; Choice modelling; Booroolong Frog; Namoi Catchment; Environmental Economics and Policy; Research Methods/ Statistical Methods.
Ano: 2011
URL: http://purl.umn.edu/107851

Cost-Benefit Analysis of the protection of Malleefowl in the Lachlan Catchment
Provedor de dados: Research in Agricultural & Applied Economics (AgEcon Searh)
Autores: Greyling,   Tertius; Bennett,   Jeffrey W.
A cost-benefit analysis (CBA) of an investment in the protection of malleefowl and associated native vegetation in the Lachlan Catchment’s central-west yielded a benefit-cost ratio of 1.4. The CBA is based on project expenditures over the past four years coupled with benefit estimates from a recent Choice Modelling study in the Lachlan Catchment. The project targets the protection of malleefowl on private land which has not yet been surveyed but where the species is known to be present. The CBA is subject to significant uncertainty due to a lack of available data. Nonetheless, sensitivity analysis indicates that the BCR is consistently larger than unity, if marginal in some cases. This suggests that the project is a worthwhile investment at this early...
Tipo: Report
Palavras-chave: Cost-benefit analysis; Benefit-cost ratio; Choice modelling; Malleefowl; Lachlan Catchment; Environmental Economics and Policy.
Ano: 2011
URL: http://purl.umn.edu/107849

Breeding and feeding pigs in Australia and Vietnam
Provedor de dados: Research in Agricultural & Applied Economics (AgEcon Searh)
Autores: Tisdell,   Clement A.; Wilson,   Clevo.
This report establishes that ACIAR Research Project AS2/1994/023, ‘Breeding and feeding pigs in Australia and Vietnam’ (supported by ACIAR from July 1995 to the end of 2000) has yielded an extraordinarily high rate of economic return on the funds invested. The collaborating agencies were the Department of Primary Industries, Queensland, James Cook University and The University of Queensland in Australia, and the Institute of Agricultural Sciences of South Vietnam in Vietnam. The best estimate benefit–cost ratio for investment in this project is at least 159:1 with a corresponding internal rate of return of 900% and a net present value of A$496 million. This is a total value, not an annual value. To give context to the number A$496 m, in 2000, 1.3 million...
Tipo: Book
Palavras-chave: Pig; Vietnam; Australia; Breeding; Feeding; High rate of return; High impact; High economic return; DPI QLD; James Cook University; University of QLD; Institute of Agricultural Sciences of South Vietnam; Benefit-cost ratio; Net present value; Internal rate of return; Significant returns; Genetic; Nutrition; Pork; Agribusiness; Farm Management; Food Consumption/Nutrition/Food Safety; International Development; Livestock Production/Industries; Production Economics.
Ano: 2001
URL: http://purl.umn.edu/47695

Economic benefits to Papua New Guinea and Australia from the biological control of banana skipper (Erionota thrax)
Provedor de dados: Research in Agricultural & Applied Economics (AgEcon Searh)
Autores: Waterhouse,   Doug F.; Dillon,   Birribi; Vincent,   David P.
Larvae of the butterfly Erionota thrax, the banana skipper, destroy the leaves of bananas by eating them and forming massive protective rolls of leaf tissue. They were first observed in north-western Papua New Guinea in 1983 and over the next 6 years spread throughout the mainland at the rate of up to 500 km/year.  E. thrax has also spread across the ocean to the east, to invade New Britain, Duke of York and New Ireland islands, and possibly Bougainville.  As the banana skipper spread, it destroyed an average of some 60% of banana leaves, leading to both a serious delay in fruit maturation and reduced weight of banana bunches. Previous successful biological control of E. thrax when it invaded Mauritius, Hawaii, Guam and Saipan encouraged Papua New Guinea...
Tipo: Book
Palavras-chave: Erionota thrax; Banana skipper; Moth; Larvae; Benefit-cost ratio; Net present value; Banana; Papua New Guinea; PNG; Australia; Agricultural and Food Policy; Crop Production/Industries; Farm Management; Food Security and Poverty; International Development; Production Economics.
Ano: 1998
URL: http://purl.umn.edu/47653

Revegetation of Regent Honeyeater habitat in the Capertee Valley: a Cost-Benefit Analysis
Provedor de dados: Research in Agricultural & Applied Economics (AgEcon Searh)
Autores: Greyling,   Tertius; Bennett,   Jeffrey W.
This study considers the costs and benefit of the Regent Honeyeater Project in the Capertee Valley over the past 10 years. The benefits are estimated using choice modelling and the costs are based on project expenditure and forgone agricultural production. A comparison of the benefits and costs yields a benefit-cost ratio (BCR) of 4.45, which implies that the benefits outweigh the costs. However, variation in the underlying assumptions reveal significant sensitivity to the uncertainty associated with the maturation of native tree plantings and the successful establishment of a significant population of birds within the native vegetation. The Cost Benefit Analysis (CBA) is dominated by the benefit derived from protection of the native species (i.e. the...
Tipo: Report
Palavras-chave: Cost-benefit analysis; Benefit-cost ratio; Choice modelling; Regent Honeyeater; Capertee Valley; Environmental Economics and Policy; Land Economics/Use.
Ano: 2010
URL: http://purl.umn.edu/107580

Production Performance and Economic Appraisal of Broiler Farms in Anand District of Gujarat
Provedor de dados: Research in Agricultural & Applied Economics (AgEcon Searh)
Autores: Shaikh,   A.S.; Zala,   Y.C.
The production performance of different sizes of broiler farms has been studied by collecting data from 60 broiler producers of Anand district during 2005. To examine production performance, the average feed conversion ratio, livability percentage, average body weight and age at marketing have been worked out. Though broiler production is capital-intensive, it has been found profitable. The average cost of production per broiler has been found to be ` 64 and per kilogram live weight of broiler as ` 32. The variable cost and fixed cost constitute 84.5 per cent and 15.5 per cent of total cost, respectively. The major cost components have been found as feed cost (58.6%), chick cost (21.5%) and depreciation on buildings (10.7%). The net profit per broiler as...
Tipo: Article
Palavras-chave: Broiler farms; Feed conversion ratio; Livability percentage; Benefit-cost ratio; Break-even analysis; Agricultural and Food Policy; Q120; Q130.
Ano: 2011
URL: http://purl.umn.edu/119385

Improved drying of high moisture grains
Provedor de dados: Research in Agricultural & Applied Economics (AgEcon Searh)
Autores: McLeod,   Ross.
An economic evaluation of three ACIAR projects whose primary objective was to improve postharvest grain drying in Thailand and Australia is provided in this report.  During 1983–1996, ACIAR invested A$1.2 million in research designed to improve grain drying in these countries. Based on current adoption, the investment has resulted in a realised net present value of A$3.6 million. A benefit–cost ratio of 3:1 was estimated for the projects. In other words, for each dollar invested, three dollars of project benefits have resulted. A high proportion of realised benefits was estimated to accrue to Australian rice producers, through reduced grain drying costs, while benefits have also been captured by the Thai rice production industry through reduced postharvest...
Tipo: Book
Palavras-chave: Economic evaluation; Australia; Thailand; Postharvest grain drying; Rice; Net present value; Benefit-cost ratio; High impact; Benefits; Grain drying; Agribusiness; Crop Production/Industries; Farm Management; Food Security and Poverty; International Development; Production Economics.
Ano: 1999
URL: http://purl.umn.edu/47692

Forage sorghum-legumes intercropping: effect on growth, yields, nutritional quality and economic returns
Provedor de dados: Bragantia
Autores: Iqbal,Muhammad Aamir; Hamid,Abdul; Ahmad,Tanvir; Siddiqui,Muzammil Hussain; Hussain,Imtiaz; Ali,Sajid; Ali,Anser; Ahmad,Zahoor.
ABSTRACT Cereal-legumes intercropping is among the most economical and effective agronomic strategies to boost forage biomass production, nutritional quality and monetary returns. This review synthesizes the research findings on how intercropping affects productivity, quality, competitiveness and economic viability of sorghum-legumes mixed, row and strip intercropping systems under varied pedo-climatic conditions. Though component crops show yield reductions in row (additive and row-replacement series), mixed (seed blended crops) and strip intercropping systems, in general overall productivity per unit land area increases to a great extent. The significantly higher resource capturing with better utilization efficacy by intercrops in temporal and spatial...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Benefit-cost ratio; Economics of production; Forage quality; Land equivalent ratio; Row replacement series.
Ano: 2019
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0006-87052019000100082