Adoption Of Best Management Practices Research Articles

Valuing the Potential Benefits of Water Quality Improvements in Watersheds Affected by Non-Point Source Pollution

Nonpoint source (NPS) pollution has been identified by the US Environmental Protection Agency (EPA) as “the nation’s largest water quality problem”. Urban development, septic systems, and agricultural operations have been identified as the major sources of diffuse pollution in surface and ground water bodies. In recent decades, urban and agricultural Best Management Practices (BMP) have been developed in several states to address agricultural water quality and water use impacts, including the reduction of nutrient loads to help meet water quality standards. Compliance with BMPs is associated with some costs to local governments, homeowners, and agricultural operations, but the improvements in water quality associated with BMP adoption are expected to yield significant benefits to society in the form of improved recreational opportunities, navigation, flood control, and ecosystem health. The development of sound policies and decision making processes require balancing the costs of BMP adoption to the agricultural operations with the social benefits to be derived from the improved water quality. In this paper we develop a benefits transfer model to provide estimates of the economic benefits of properly implemented and effective Best Management Practices (BMP) throughout the state of Florida. These benefit estimates can be used in a cost-benefit framework to determine the optimal level of BMP adoption throughout the state of Florida and provide a framework for other regions to estimate the potential benefits of BMP-mediated water quality improvements.

Quantifying Adoption Intensity for Weed-Resistance Management Practices and Its Determinants among U.S. Soybean, Corn, and Cotton Farmers

Using data envelopment analysis with principal components, we calculate an adoption-intensity index for herbicide-resistance best management practices (BMPs). Empirical results for over 1,100 farmers in twenty-two U.S. states suggest that many farmers could improve their herbicideresistance BMP adoption. Two-limit truncated regression results show that higher yields and a greater proportion of acres planted with Roundup Ready R seeds motivate weed BMP adoption. While soybean and corn farmers have lower adoption intensity than cotton farmers, farmer educational attainment and greater concern for herbicide effectiveness and for human and environmental safety are found to help increase the adoption of weed BMPs.

Exploring agricultural advice networks, beneficial management practices and water quality on the landscape: A geospatial social-ecological systems analysis

Agricultural practices have been linked to detrimental effects on ecosystems, with water quality of particular concern. Research has been devoted to understanding uptake of beneficial, or best, management practices (BMPs) in agriculture; however, sources of advice and subsequent effects on the landscape have not been elucidated. This study set out to understand (1) what sources of information agricultural producers rely on when making land-management decisions; (2) the characteristics of their advice networks; and (3) how the advice network linked spatially to water quality on the landscape. A watershed in Alberta was used as a case study and respondents identified that regional advisors were relied upon most often for advice and these advisors had the most influence on the adoption of BMPs. Results indicate that respondents with connections to regional actors implemented more BMPs that those without. Regional government actors had a greater effect than regional non-governmental actors. Local actors played a lesser role in advice networks related to BMP adoption. A 3D geovisualization was used to explore linkages among advisors, BMPs, and water quality. This technique may be useful for other scenarios and can contribute to policy development and enhanced practices.

Learning to listen: how collaborative dialogue in regulation influences landowner adoption of best management practices on unregulated lands

The emergence of new environmental policy instruments (NEPIs) has launched a debate about the continued relevance of traditional regulatory approaches. Previous research examining the relationship of regulations and NEPIs has shown that regulations can compel engagement with voluntary approaches. In this paper, we demonstrate that the linkages between regulation and voluntary approaches need not be coercive. Through a study of sediment pollution in northern California, we show that regulatory processes have facilitated learning and motivated landowners to undertake voluntary actions. We suggest three elements that are fundamental to the success of this process: (a) the voluntary action must benefit the landowner, (b) resources must be available to reduce the implementation burden, and (c) the regulatory process must involve open and respectful communication between the landowner and the regulator. While not a panacea, this process of regulatory spillover offers a promising pathway for extending the reach of existing regulations.

Social Indicator Variations Across Watersheds: Implications for Developing Outreach and Technical Assistance Programs

ABSTRACTCurrent policy regarding nonpoint source pollution reduction in the United States involves encouraging voluntary adoption of Best Management Practices. Supporting the voluntary adoption of any practice requires the right combination of education, outreach, assistance, and incentives. Developing this combination necessitates an understanding of the target audience. The Social Indicators Planning and Evaluation System (SIPES) was developed to capture social information about target audiences through the use of customized but consistent survey questions. Close examination and comparison of data collected using SIPES reinforce that social characteristics differ between watersheds and that project managers in one area should not rely on descriptions from another when planning their outreach, education, and technical assistance programs. Policymakers should consider funding community-based watershed organizations to collect social data to improve targeting of water quality restoration efforts.

What characterizes leading companies within business excellence models? An analysis of “EFQM Recognized for Excellence” recipients in Spain

This paper investigates whether there is a specific approach to the adoption of best management practices embedded in the EFQM Excellence Model, which characterizes leading “Recognized for Excellence” organizations in Spain. In addition, it studies which practices within EFQM's enablers predict high performance. In contrast to most previous research that used surveys of managers' perceptions, this study uses the actual criteria and sub-criteria scores attained by organizations in their assessment for EFQM recognition. Scores of a population of 216 organizations, which were assessed in the period from March 2011 to March 2013, are analyzed via ANOVA, factor and regression analyses. The findings show that Spanish organizations adopt the best practices encompassing the EFQM model in a similar fashion: organizations on average follow parallel trends in the scores received per criterion, and there are no significant differences in the importance attributed to enablers. Either role models are being followed, or most organizations know what is expected by the assessors and try to fulfill these expectations. Consequently, an imitative process disseminates and legitimizes the EFQM model in Spain. In addition, it is found that the People criterion makes a difference in attaining high performance, thus emphasizing the relative importance of the softer dimension in Quality Management. This study contributes to the management literature on best practices, by highlighting a consistent trend in the use of the EFQM model, and also provides insights to managers on how to better allocate resources within Business Excellence Models.

Agricultural landowners’ willingness to participate in a filter strip program for watershed protection

Non point source (NPS) pollution remains a challenge to communities meeting watershed management objectives around the world. Installing agricultural best management practices (BMPs) such as filter strips is a widely accepted mechanism to control NPS pollution and agricultural runoff. Government programs in the form of payment for environmental services (PES) have been introduced to encourage BMP adoption for watershed protection. However, the voluntary nature of these programs makes landowners’ decision to participate in them critical to achieving program goals. Understanding the drivers behind landowners’ decisions to participate in watershed protection programs is essential for designing effective and efficient programs. This study examines agricultural landowners’ decisions to participate in a conservation program involving filter strips. Using responses from a survey of agricultural landowners in Michigan's Saginaw Bay watershed, the study examines key programmatic, socio-psychological, and demographic determinants of landowners’ participation decisions. The study results suggest that making contract durations shorter with enhanced rental payments, and educating landowners about program efficacy as well as on- and off-farm benefits of the conservation practice would enhance participation.

Factors affecting adoption of improved management practices in the pastoral industry in Great Barrier Reef catchments

Substantial efforts are being made by industry and government in Australia to reduce adverse impacts of pastoral operations on water quality draining to the Great Barrier Reef. A key target is to achieve rapid adoption of better management practices by landholders, but current theoretical frameworks provide limited guidance about priorities for improving adoption. In this study information from direct surveys with landholders in the two largest catchments draining into the Great Barrier Reef has been collected and analysed. Study outcomes have important implications for policy settings, because they confirm that substantial variations in adoption drivers exist across landholders, enterprises and practices. The results confirm that the three broad barriers to adoption of information gaps, financial incentives and risk perceptions are relevant. This implies that different policy mechanisms, including extension and incentive programs, remain important, although financial incentives were only identified as important to meet capital and transformational costs rather than recurrent costs.

Role of economics in developing fertilizer best management practices

To reduce agricultural water quality impacts, many US states and other countries rely on agricultural best management practices (BMPs). Although fertilizer BMP rates are supposed to ensure the economic viability of agricultural production, BMPs are frequently based on agronomic, rather than economic, research; moreover, some producers resist BMP adoption, citing profit reductions. In this study, we examine the effect of production and market risks, as well as producers’ risk aversion, on producers’ fertilizer rate and BMP adoption decisions. We focus on potato production in the Lower St. Johns River Basin, northern Florida. Using historical data, we estimate the linear stochastic plateau production function that explicitly incorporates production risks related to weather. We develop a financial model and use Monte Carlo simulation and empirical fertilizer and potato sale price distributions to estimate the distributions of ten-year net present values (NPVs) for alternative fertilizer rates. The results show that the preferred fertilizer rate depends on the assumption about potato sale prices and producers’ risk aversion levels. Risk-neutral producers prefer lower fertilizer rates than do risk-averse producers to avoid the downward risk caused by the high fertilizer expense and low yields. BMP adoption can also lead to profit loss when the BMP is designed for a low price scenario while market conditions are favorable. Hence, BMP development should be based on comprehensive analysis of production and market risks, as well as producers’ risk perceptions. It should also be recognized that to achieve water quality targets, BMP adoption may lead to reductions in profits if a subset of possible production and/or market conditions are realized. Insurance-type policies to compensate agricultural producers for the profit losses may be developed.

Estimation of nitrogen pools in irrigated potato production on sandy soil using the model SUBSTOR.

Recent increases in nitrate concentrations in the Suwannee River and associated springs in northern Florida have raised concerns over the contributions of non-point sources. The Middle Suwannee River Basin (MSRB) is of special concern because of prevalent karst topography, unconfined aquifers and sandy soils which increase vulnerability of the ground water contamination from agricultural operations- a billion dollar industry in this region. Potato (Solanum tuberosum L.) production poses a challenge in the area due to the shallow root system of potato plants, and low water and nutrient holding capacity of the sandy soils. A four-year monitoring study for potato production on sandy soil was conducted on a commercial farm located in the MSRB to identify major nitrogen (N) loss pathways and determine their contribution to the total environmental N load, using a partial N budget approach and the potato model SUBSTOR. Model simulated environmental N loading rates were found to lie within one standard deviation of the observed values and identified leaching loss of N as the major sink representing 25 to 38% (or 85 to 138 kg ha-1 N) of the total input N (310 to 349 kg ha-1 N). The crop residues left in the field after tuber harvest represented a significant amount of N (64 to 110 kg ha-1N) and posed potential for indirect leaching loss of N upon their mineralization and the absence of subsequent cover crops. Typically, two months of fallow period exits between harvest of tubers and planting of the fall row crop (silage corn). The fallow period is characterized by summer rains which pose a threat to N released from rapidly mineralizing potato vines. Strategies to reduce N loading into the groundwater from potato production must focus on development and adoption of best management practices aimed on reducing direct as well as indirect N leaching losses.

ON-FARM CITRUS TRIALS IN AUSTRALIA: EFFECTIVE EXTENSION FOR COMMERCIAL ASSESSMENT

Many products and practices have been promoted to the citrus industry and little is known about their performance under Australian conditions. Some of these products have been trialled within Australia. Performance of some of these products on-farm has been highly variable causing confusion in the industry. The variability could be due to differences in site (e.g. soil, climate, variety) and/or management (e.g. irrigation, nutrition). This project examines the on-farm cost-benefit of a number of citrus practices that have been promoted to industry. The project utilizes active learning principles by facilitating grower participation with trials (planning, maintenance and reporting). Over 20 trials have been implemented in the past two seasons. Trials included ground and foliar potassium applications, pruning, foliar fruit size sprays, kaolin clay foliar sprays and crop regulation practices. Trials have resulted in cost savings with reduced potassium application. The project developed tools and methods to enable efficient and effective in-field collection and analysis of data. This enabled the project to implement more trials. Single tree replicated trials (RCBD) are the favoured method to conduct trials. Grower feedback has been very positive indicating that it has helped them make improved and cost effective management decisions. On-farm trials are a very effective extension method to obtain fast assessment and adoption of best management practices suited to site conditions.

Soil Carbon Sequestration in Agroecosystems of India

Soils of agroecosystems of India are degraded, depleted and severely devoid of the soil organic carbon (SOC) pool which is often <1 g kg−1 or barely 10 to 15 Mg C ha−1 to 40 cm depth. Thus, crop yields are low, water and air resources are polluted, and the overall environment is degraded. Indeed, environmental sustainability in India remains a major issue to be addressed. Concentration of SOC is a strong determinant of soil quality. Furthermore, quality of soil also impacts those of plants and animals, and thus, health of human population. Restoration of SOC pool to above the threshold level of 10 to 15 g kg−1 in the root zone is essential to advancing food and nutritional security, achieving climate change adaptation and mitigation, improving water quality and renewability, increasing biodiversity, and alleviating poverty by increasing productivity. Among causes of the severe depletion of SOC pool are extractive farming practices of residue removal, indiscriminate plowing, excessive irrigation by flooding, none or unbalanced application of fertilizers, and use of dung as a household fuel rather than manure. Uncontrolled grazing and shifting cultivation also contribute to soil degradation. The extent and severity of degradation are exacerbated by accelerated erosion by water and wind, salinization, acidification, elemental imbalance, and anerobiosis. Thus, soil degradation trends must be reversed by improving SOC concentration through creation of a positive soil/ecosystem C budget. Among best management practices (BMPs) are afforestation and reforestation of hill slopes and agriculturally marginal lands. Establishment of plantations and agroforestry systems is another option. Some BMPs for cropland, essential to improving SOC pool and advancing food security, are conservation agriculture, integrated nutrient management, and crop diversification especially of the rice-wheat system in the Indo-Gangetic Plains. Policy interventions are needed to promote the adoption of BMPs through payments for ecosystems services. Improved governance and strong political will power are essential to revolutionizing the stagnating Indian agriculture.

Evaluating the effectiveness of management practices on hydrology and water quality at watershed scale with a rainfall-runoff model

The adverse influence of urban development on hydrology and water quality can be reduced by applying best management practices (BMPs) and low impact development (LID) practices. This study applied green roof, rain barrel/cistern, bioretention system, porous pavement, permeable patio, grass strip, grassed swale, wetland channel, retention pond, detention basin, and wetland basin, on Crooked Creek watershed. The model was calibrated and validated for annual runoff volume. A framework for simulating BMPs and LID practices at watershed scales was created, and the impacts of BMPs and LID practices on water quantity and water quality were evaluated with the Long-Term Hydrologic Impact Assessment-Low Impact Development 2.1 (L-THIA-LID 2.1) model for 16 scenarios. The various levels and combinations of BMPs/LID practices reduced runoff volume by 0 to 26.47%, Total Nitrogen (TN) by 0.30 to 34.20%, Total Phosphorus (TP) by 0.27 to 47.41%, Total Suspended Solids (TSS) by 0.33 to 53.59%, Lead (Pb) by 0.30 to 60.98%, Biochemical Oxygen Demand (BOD) by 0 to 26.70%, and Chemical Oxygen Demand (COD) by 0 to 27.52%. The implementation of grass strips in 25% of the watershed where this practice could be applied was the most cost-efficient scenario, with cost per unit reduction of $1m3/yr for runoff, while cost for reductions of two pollutants of concern was $445kg/yr for Total Nitrogen (TN) and $4871kg/yr for Total Phosphorous (TP). The scenario with very high levels of BMP and LID practice adoption (scenario 15) reduced runoff volume and pollutant loads from 26.47% to 60.98%, and provided the greatest reduction in runoff volume and pollutant loads among all scenarios. However, this scenario was not as cost-efficient as most other scenarios. The L-THIA-LID 2.1 model is a valid tool that can be applied to various locations to help identify cost effective BMP/LID practice plans at watershed scales.

Context and capacity: The potential for performance-based agricultural water quality policy

Current Canadian policy approaches to agricultural water quality encourage the adoption of best management practices through voluntary, incentive-based measures. Despite these measures, concerns about agricultural impacts on water quality persist. Performance-based policy approaches with incentives that are tied to defined outcomes, and not to particular practices, may have an important role in managing water quality. Five performance-based approaches to address water quality in agricultural landscapes were identified: water quality trading/permitting, differentiated payments for ecosystem services, reverse auctions; emissions charges, and cross-compliance (a hybrid measure). The purpose of this paper is to critically assess the institutional and socio-cultural context that facilitated existing performance-based policy instrument adoption. Through this analysis, three key contextual factors were identified as enablers of performance based approaches: (1) social context, (2) institutional capacity and (3) standardized, consistent and robust estimation methodologies. A framework was developed to classify performance based programs and approaches. The application of the findings from this research and the classification framework provide an organized approach to assess the feasibility of implementing performance-based approaches for agri-environmental water quality policy.

Willingness to pay for BMP-induced water quality benefits and deviations around expected water quality outcomes

This paper investigates the economic valuation of the benefits accruing to farmers derived from expected water quality improvements stemming from the adoption of best management practices (BMPs). The study applies the stated-choice experiments administered on a sample of farmers located in the Chaudière and Etchemin watersheds just south of Quebec City to characterize the preferences of farmers in terms of the mean and standard deviation of phosphorus and coliform reductions, and the costs borne by local farmers and by taxpayers in the province of Quebec to support the adoption of BMPs. The results show significant observed and unobserved heterogeneity regarding farmers’ marginal utility of phosphorus and coliform reductions. The distribution of risk attitudes encompasses all three types: risk aversion, risk neutrality and risk loving. Benefit valuation decreases with age, but the age effect is smaller than the heterogeneity across farmers of a given age. Farmers experience disutility when their own cost or taxpayers’ cost increases, but a private dollar is worth substantially more to farmers than a public one.

BUILDING CONSENSUS FOR SUSTAINABLE DEVELOPMENT IN AQUACULTURE: A DELPHI STUDY OF BETTER MANAGEMENT PRACTICES FOR SHRIMP FARMING IN INDIA

Shrimp farming in India has developed at an uneven pace since export-oriented production began in the early 1990s. The introduction of Penaeus vannamei in 2009 along with disease-related production declines in competing Asian nations has led to a remarkable expansion in recent years. It is clear that the long-term success of Indian shrimp farming will continue to rely on the widespread adoption of Better Management Practices (BMPs). A two-round stakeholder Delphi survey was conducted in 2012 to elicit views and build consensus on the relative importance of a comprehensive set of BMPs covering most aspects of shrimp farming production. While the vast majority of BMPs were considered important, respondents placed greater emphasis on those BMPs aimed at improving production efficiency. Also, BMPs focused on overall outcomes were ranked higher than those placing specific restrictions on input usage. Results also yielded interesting policy implications on BMPs that are yet to be widely adopted such as distance between farms and construction of effluent treatment systems.

Management practices of Australian manufacturing firms: why are some firms more innovative?

Whilst many studies have focused on the adoption of individual or sets of innovative management practices (e.g. lean production), fewer studies have evaluated a diverse set of management practices and firm contextual factors which may limit (or enable) the accumulation of groups of innovations in organisations. The Australian manufacturing sector is a novel setting to investigate such issues due to, among other reasons, a protracted decline of the competitive position of the sector. In this paper, we use a data-set from the Australian government funded management practices benchmarking project which was part of the World Management Survey and empirically evaluate why some companies have more innovative management practices than others. The conceptual model developed draws mainly on innovation diffusion theory and prior empirical findings. We find that (1) firms which adopt clusters of better management practices have greater performance; and (2) several firm characteristics explain the adoption of better management practices, such as education level of employees and managers, firm size, ownership by a multinational firm, and diffused ownership structure. The study has practical implications for policy-makers and stakeholders who are interested in supporting the adoption of better management practices by firms to enhance productivity in the manufacturing sector.

Urbanization and watershed sustainability: Collaborative simulation modeling of future development states

Summary Urbanization has a significant impact on water resources and requires a watershed-based approach to evaluate impacts of land use and urban development on watershed processes. This study uses a simulation with urban policy scenarios to model and strategize transferable recommendations for municipalities and cities to guide urban decisions using watershed ecohydrologic principles. The watershed simulation model is used to evaluation intensive (policy in existing built regions) and extensive (policy outside existing build regions) urban development scenarios with and without implementation of Best Management practices (BMPs). Water quantity and quality changes are simulated to assess effectiveness of five urban development scenarios. It is observed that optimal combination of intensive and extensive strategies can be used to sustain urban ecosystems. BMPs are found critical to reduce storm water and water quality impacts on urban development. Conservation zoning and incentives for voluntary adoption of BMPs can be used in sustaining urbanizing watersheds.

Agricultural Water Quality BMPs: A Standardized Approach to Financial Analysis

Addressing water quality issues continues to emerge as a challenge to be faced by agricultural interests across the Cornbelt. Agricultural Extension has a role to play in assisting farmers in complying with water quality regulations and adoption of Best Management Practices (BMP) to address water quality impacts. Despite the clear importance of financial information in BMP decision-making, often, published cost assessments are rare and lack transparency. This article provides a framework for Extension personnel who provide water quality BMP cost assessments while also highlighting financial information necessary for creating Extension publications that have transparent and dynamic financial assessments.

Adoption of Best Management Practices for Herbicide-Resistant Weeds in Midsouthern United States Cotton, Rice, and Soybean

In fall 2011, cotton and soybean consultants from Arkansas, Louisiana, Mississippi, and Tennessee were surveyed through direct mail and on-farm visits, and rice consultants from Arkansas and Mississippi were surveyed through direct mail to assess the importance and level of implementation of herbicide resistance best management practices (HR-BMPs) for herbicide-resistant weeds. Proper herbicide timing, clean start with no weeds at planting, application of multiple effective herbicide modes of action, use of full labeled herbicide rates, and prevention of crop weed seed production with importance rating of ≥ 4.6 out of 5.0 were perceived as the most important HR-BMPs in all crops. Purchase of certified rice seed was on 90% of scouted hectares. In contrast, least important HR-BMPs as perceived by consultants with importance ratings of ≤ 4.0 in cotton, ≤ 3.7 in rice, and ≤ 3.8 in soybean were cultural practices such as manual removal of weeds; tillage including disking, cultivation, or deep tillage; narrow (≤ 50 cm)-row crops, cover crops, and altered planting dates. Narrow crop rows and cover crops in cotton; altered planting dates in cotton and soybean; and cleaning of farm equipment and manual weeding in rice and soybean is currently employed on ≤ 20% of scouted hectares. Extra costs, time constraints, adverse weather conditions, lack of labor and equipment, profitability, herbicide-related concerns, and complacency were perceived as key obstacles for adoption of most HR-BMPs. With limited adoption of most cultural practices that reduce risks of herbicide-resistant weeds, there are opportunities to educate growers concerning the proactive need and long-term benefits of adopting HR-BMPs to ensure sustainable weed management and profitable crop production.