Soil test phosphorus and nitrate adjacent to artificial and natural cattle watering sites in southern Alberta

2010 ◽  
Vol 90 (2) ◽  
pp. 331-340 ◽  
Author(s):  
J J Miller ◽  
T W Curtis ◽  
E. Bremer ◽  
D S Chanasyk ◽  
W D Willms
Keyword(s):  
Best Management Practices ◽  
Management Practices ◽  
Surface Soil ◽  
Management Practice ◽  
Soil Test ◽  
Nutrient Distribution ◽  
Background Levels ◽  
Southern Alberta ◽  
Subsurface Soil ◽  
Soil Test Phosphorus

Off-stream watering troughs may reduce surface water pollution by keeping nutrients away from natural water bodies, but may increase nutrient contaminant of groundwater. The objective of this study was to determine to what extent off-stream watering troughs active for 2 to 7 yr caused enrichment and leaching of soil test P (STP) and KCl-extractable NO3-N. The study was conducted in the Lower Little Bow (LLB) River watershed of southern Alberta, Canada. Soil samples were obtained at three recently installed off-stream watering troughs, four active cattle watering sites adjacent to the LLB River, and at two sites along a fenced reach of the river with no cattle access. At each location, samples were obtained along four 100-m transects. Surface (0-5 cm) soil immediately adjacent to the LLB River was not enriched in STP or NO3-N, which was attributed to flushing of nutrients during periods of high flow. Surface soil at distances ≤ 5 m from the three water troughs was approximately three times higher in STP than surface soil obtained at distances ≥10 m and was seven times higher in NO3-N. Subsurface soil layers adjacent (3 m distance) to the three water troughs were not enriched in STP compared with background levels (100 m distance). The subsurface soil adjacent (3 m) to the longest active watering trough was enriched in NO3-N to the 60 cm depth compared with background levels (100 m). Greater nutrient enrichment at the off-stream watering troughs than at the cattle watering sites adjacent to the river suggested that this beneficial management practice (BMP) was effective in shifting nutrient distribution away from the river. Key words: Pasture, nutrient leaching, nitrate, best management practices

Assessment of uncertainty in soil test phosphorus using kriging techniques and sequential Gaussian simulation: implications for water quality management in southern Quebec

2013 ◽  
Vol 48 (4) ◽  
pp. 344-357 ◽  
Author(s):  
Alaba Boluwade ◽  
C. A. Madramootoo
Keyword(s):  
Best Management Practices ◽  
Management Practices ◽  
Water Quality Management ◽  
Sequential Gaussian Simulation ◽  
Soil Test ◽  
Conditional Probability Distribution ◽  
Land Use Pattern ◽  
Soil P ◽  
Soil Test Phosphorus ◽  
Gaussian Simulation

Missisquoi Bay, located in southern Quebec at the north-eastern extremity of Lake Champlain, is subject to eutrophication arising from excess nutrients, predominantly phosphorus (P), contributed by agricultural watersheds. Factors such as land use pattern, management practices, soil properties and geomorphology have an impact on soil P levels. Land patches under different management practices introduce a cyclic pattern, especially when fitting the variogram. Geostatistics procedures were used to model soil test phosphorus (STP) within the 11 km2 Castor Watershed in southern Quebec, Canada. An ordinary kriging (OK) method was used to estimate STP at unsampled points, but this had a smoothing effect, resulting in an underestimation of high values and overestimation of low values. Therefore, a more efficient technique was needed to draw predictions from the conditional probability distribution at the simulation grid nodes. A sequential Gaussian simulation (SGS) was adopted for this purpose, and used to create 50 equal probable realizations. Uncertainty was modelled using the E-type (mean) of the realizations, which ranged from 12.5 to 223 mg P kg–1 soil. The adequate spatial probability pattern for STP is a valuable criterion when seeking to delineate areas of high STP for site-specific best management practices (BMPs).

Agronomic and environmental soil test phosphorus in manured and non-manured Manitoba soils

2007 ◽  
Vol 87 (1) ◽  
pp. 73-83 ◽  
Author(s):  
D. Kimaragamage ◽  
O O Akinremi ◽  
D. Flaten ◽  
J. Heard
Keyword(s):  
Iron Oxide ◽  
Surface Soil ◽  
Single Equation ◽  
Soil Samples ◽  
Soil Test ◽  
Regression Equations ◽  
Soil P ◽  
Soil Test Phosphorus ◽  
Bray 1 ◽  
Water Extractable

Quantitative relationships between soil test phosphorus (STP) methods are needed to guide P management especially in manured soils with high P. Our objectives were: (i) to compare amounts of P extracted by different methods; (ii) to develop and verify regression equations to convert results among methods; and (iii) to establish environmental P thresholds for different methods, in manured and non-manured soils of Manitoba. We analyzed 214 surface soil samples (0–15 cm), of which 51 had previous manure application. Agronomic STP methods were Olsen (O-P), Mehlich-3 (M3-P), Kelowna-1 (original; K1-P), Kelowna-2 (modified; K2-P), Kelowna-3 (modified; K3-P), Bray-1 (B1-P) and Miller and Axley (MA-P), while environmental STP methods were water extractable (W-P), Ca Cl2 extractable (Ca-P) and iron oxide impregnated filter paper (FeO-P) methods. The different methods extracted different amounts of P, but were linearly correlated. For an O-P range of 0–30 mg kg-1, relationships between O-P and other STP were similar for manured and nonmanured soils, but the relationships diverged at higher O-P levels, indicating that one STP cannot be reliably converted to another using a single equation for manured and non-manured soils at environmentally critical P levels (0–100 mg kg-1 O-P). Suggested environmental soil P threshold ranges, in mg P kg-1, were 88–118 for O-P, 138–184 for K1-P, 108–143 for K2-P, 103–137 for K3-P, 96–128 for B1-P, 84–111 for MA-P, 15–20 for W-P, 5–8 for Ca-P and 85–111 for FeO-P. Key words: Phosphorus, soil test phosphorus, manured soils, non-manured soils, environmental threshold

scholarly journals Silvicultural Best Management Practice Compliance Monitoring Programs in the Southern United States

2005 ◽  
Vol 29 (1) ◽  
pp. 48-52 ◽  
Author(s):  
Amanda L. Husak ◽  
Stephen C. Grado ◽  
Steven H. Bullard ◽  
Steverson O. Moffat
Keyword(s):  
Best Management Practices ◽  
Management Practices ◽  
Management Practice ◽  
Compliance Monitoring ◽  
Public And Private ◽  
Best Management ◽  
Monitoring Programs ◽  
Nps Pollution ◽  
Implementation Level ◽  
Private Forestland

Abstract Passage of the Clean Water Act (CWA) of 1972 prompted states to invest significant resources to develop programs to control nonpoint source (NPS) pollution from forestry and other activities. Forestry-related agencies and organizations have since developed silvicultural best managementpractice (BMP) guidelines to reduce NPS pollution, maintain stream integrity, and meet state water quality standards. To determine the effectiveness and implementation level of best management practices (BMP) on public and private forestland, states further developed and implemented theirBMP compliance monitoring programs. This study documents the similarities and differences in efforts, methods, resources, and expenditures among BMP compliance monitoring programs across the 13 southern states. 29(1):48–52.

Early seeding dates improve oat yield and quality in the eastern prairies

2004 ◽  
Vol 84 (2) ◽  
pp. 431-442 ◽  
Author(s):  
W. E. May ◽  
R. M. Mohr ◽  
G. P. Lafond ◽  
A. M. Johnston ◽  
F. C. Stevenson
Keyword(s):  
Best Management Practices ◽  
Management Practices ◽  
Management Practice ◽  
Kernel Weight ◽  
Crown Rust ◽  
Test Weight ◽  
High Quality ◽  
Canadian Prairies ◽  
Best Management ◽  
Yield And Quality

Demand for high quality oat (Avena sativa L.) for consumption by humans and race horses has increased, leading to increased oat production on the Canadian prairies. Little information exists on the best management practices for producing high-quality, high-yielding oat using direct seeding systems and cropping practices developed and adopted over the past 15 yr. The objective of this study was to determine the effect of early seeding on grain yield and quality of oat cultivars currently grown in the eastern prairie region. Four seeding dates and four cultivars were tested at Indian Head, Melfort, and Brandon over 3 yr. Moving the seeding date from mid-June to early May increased oat yield, seeds per panicle, kernel weight, test weight and plump seed by 76, 33, 10, 13 and 11%, respectively, when averaged across all locations and years. This increase in yield and quality was probably due to improved environmental conditions and a reduction in crown rust infection (Puccina coronata Corda). Crown rust has a larger effect on seed yield and quality as one moves east and south from Melfort, Saskatchewan, and as seeding was delayed from early May. Early seeding of oat decreases the risk of obtaining low yield and/or quality, and should be considered a best management practice for growing milling oats, especially in the southeastern prairies of Canada. Key words: Yield components, test weight, oat, Puccina coronata, lodging, plump seed, thin seed

Welfare effects of forestry best management practices in the United States

2006 ◽  
Vol 36 (7) ◽  
pp. 1674-1683 ◽  
Author(s):  
Changyou Sun
Keyword(s):  
Best Management Practices ◽  
Management Practices ◽  
Management Practice ◽  
The United States ◽  
Welfare Loss ◽  
Equilibrium Displacement Model ◽  
Best Management ◽  
Long Run ◽  
Welfare Losses ◽  
State Forestry

State forestry best management practice (BMP) programs have been widely developed and implemented to prevent nonpoint source water pollution in the past three decades. The unanswered question is how forestry BMPs have affected the welfare positions of consumers, mills, loggers, and forest landowners. A Muth-type equilibrium displacement model was constructed to examine welfare changes of these stakeholders. The model considered a two-stage vertical production system with variable proportion production technology and imperfect market structure. Industrial mills experienced little welfare loss from forestry BMP regulation. Consumers had the largest absolute welfare loss, and loggers had the largest relative welfare loss in the base scenario. The supply elasticity of harvesting services had the greatest impact on the relative incidence of welfare losses between landowners and loggers, and in the long run their welfare losses were comparable. These results may help to improve future state forestry BMP guidelines and design incentive systems for increasing implementation rates.

scholarly journals Best Management Practices (BMPs): Perimeter Borders

EDIS ◽  
2021 ◽  
Vol 2021 (3) ◽  
Author(s):  
Vivek Sharma ◽  
Kati W. Migliaccio ◽  
Brian Boman ◽  
Jemy Hinton ◽  
Kevin Hancock
Keyword(s):  
Best Management Practices ◽  
Management Practices ◽  
Management Practice ◽  
Best Management Practice ◽  
Biological Engineering ◽  
Best Management

This publication addresses perimeter borders as a best management practice. Written by Vivek Sharma, Kati W. Migliaccio, Brian Boman, Jemy Hinton, and Kevin Hancock, and published by the UF/IFAS Department of Agricultural and Biological Engineering, revised May 2021.

scholarly journals Case study of extracting soil and land use maps to determine agricultural best management practices that can be applied to prevent erosion and fertile soil loss

2020 ◽  
Vol 61 (4) ◽  
pp. 313-327
Author(s):  
Akıner Ernur
Keyword(s):  
Land Use ◽  
Best Management Practices ◽  
Management Practices ◽  
Assessment Tool ◽  
Management Practice ◽  
Global Climate ◽  
Residential Areas ◽  
Filter Strips ◽  
Land Type ◽  
Agricultural Areas

The Büyük Melen river in the Melen Basin meets Istanbul's drinking water needs. Protecting the basin against nutrient pollution is vital in this regard as well. This study focuses on the best possible management practice (BMPs) in the Melen Basin to reduce the export of nutrients from the agricultural areas. A region comprising industrial, farming, and residential zones is the Melen basin. There is a forecast of global climate change in Turkey, and scientists and also governors must know which areas are no longer farming zones and which will be more appropriate for agriculture. Turkey's territory is a high-risk desertification area. In Melen Basin, the soil type and land use properties have been determined and mapped using GIS and Soil and Water Assessment Tool (SWAT). Buffer BMP filter strips can be used effectively for nutrient protection that can be carried from residential areas and motorways by runoff. The region in the basin is steep, and its clay and sandy soil structures are ideal for parallel terraces, grade stabilization, strip, and contour cultivation. Unless the ground can not retain or store water, the soil can undergo sudden floods, causing an erosion of the soil's productive surface layer. When we protect the land, this condition is reduced. The land type and land use mapping should be drawn up as soon as possible for the remaining Turkish basins by scientific methods. This research is intended to be an illustration for researches on other agricultural basins in Turkey and the world for this reason.

scholarly journals Storm Water Best Management Practices that Maximize Aquifer Recharge

2008 ◽  
Vol 3 (1) ◽  
pp. 126-138 ◽  
Author(s):  
Rebecca A Larson ◽  
Steven I Safferman
Keyword(s):  
Best Management Practices ◽  
Management Practices ◽  
Management Practice ◽  
Storm Water ◽  
Aquifer Recharge ◽  
Detention Ponds ◽  
Filter Strips ◽  
Best Management ◽  
Separate Table ◽  
Porous Pavement

This article reviews and provides evaluation guidelines for six major storm water best management practices including bioretention areas, grassed swales/filter strips, infiltration trenches, porous pavement, rain barrels and wet detention ponds. A detailed table allows for quick and easy design comparisons, including a separate table which allows for site specific cost comparisons. A logic diagram is provided as a basic tool for screening the most feasible management practice.

scholarly journals Improving Best Management Practice Decisions in Mixed Land Use and/or Municipal Watersheds: Should Approaches Be Standardized?

Land ◽  
2021 ◽  
Vol 10 (12) ◽  
pp. 1402
Author(s):  
Jason A. Hubbart
Keyword(s):  
Decision Making ◽  
Best Management Practices ◽  
Management Practices ◽  
Management Practice ◽  
The United States ◽  
Decision Makers ◽  
Monitoring Methods ◽  
Best Management ◽  
Mixed Use ◽  
Decision Making Processes

Best management practices (BMP) are defined in the United States Clean Water Act (CWA) as practices or measures that have been demonstrated to be successful in protecting a given water resource from nonpoint source pollution. Unfortunately, the greatest majority of BMPs remain unvalidated in terms of demonstrations of success. Further, there is not a broadly accepted or standardized process of BMP implementation and monitoring methods. Conceivably, if standardized BMP validations were a possibility, practices would be much more transferrable, comparable, and prescriptive. The purpose of this brief communication is to present a generalized yet integrated and customizable BMP decision-making process to encourage decision makers to more deliberately work towards the establishment of standardized approaches to BMP monitoring and validation in mixed-use and/or municipal watersheds. Decision-making processes and challenges to BMP implementation and monitoring are presented that should be considered to advance the practice(s) of BMP implementation. Acceptance of standard approaches may result in more organized and transferrable BMP implementation policies and increased confidence in the responsible use of taxpayer dollars through broad acceptance of methods that yield predictable and replicable results.

Development of Web GIS based Surface Soil Erosion Prediction System

2020 ◽  
Author(s):  
Dongjun Lee ◽  
Jae E Yang ◽  
Kyoung Jae Lim ◽  
Jonggun Kim ◽  
Won Seok Jang
Keyword(s):  
Soil Erosion ◽  
Best Management Practices ◽  
Management Practices ◽  
Surface Soil ◽  
Web Gis ◽  
Analysis Tool ◽  
Prediction System ◽  
Erosion Prediction ◽  
Soil Information ◽  
The Web

<p>This study is to develop the Web GIS-based surface soil erosion prediction system that informs soil information such as daily potential soil erosion, soil quality, and best management practices (BMPs). The system involves three functions that are: 1) to predict daily potential soil erosion in the study areas (e.g., Jaun-Cheon, Bukhan-Gang, Namhan-Gang, and Gyoungan-Cheon); 2) to provide the current levels of soil qualities at field scale; 3) to recommend BMPs which can improve soil qualities. This study developed a module based on MUSLE and assessed the availability of the module comparing with the measured data at sample fields (3%, 9% slope). After verification of the module, the Web GIS-based system was developed using a user-friendly interface. The users can obtain the visualized soil erosion information through the interface and compare the amount of soil erosion using the single field or multi-fields analysis tool developed in this study. Moreover, the users can find the current level of soil qualities at fields they selected and gain various applicable BMPs information. The system enables to inform non-experts to soil information without using a complex model and equation. Therefore, the system can play a significant role in recognizing the importance of soil resources and enacting laws relative to soil conservation.</p>

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