Runoff Water Quality Characteristics Following Swine Slurry Application under Broadcast and Injected Conditions

doi:10.13031/trans.11370

Cited by 7 publications

(3 citation statements)

References 24 publications

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“…Although the majority of studies have focused on comparing differences in P runoff due to tillage, less work has been done to determine the effect of manure or inorganic P fertilizer rate or placement methods on P runoff losses. For manure, incorporation has generally been shown to reduce DRP concentrations and loads compared with nonincorporation (Bundy et al, 2001;Allen and Mallarino, 2008;Kaiser et al, 2009;Coelho et al, 2012;Schuster et al, 2017). This is likely because broadcast manure application concentrates soluble P at the soil surface, increasing the susceptibility for runoff losses after heavy precipitation events.…”

Section: Tillage and Fertilizer Management Effects On Phosphorus Runomentioning

confidence: 99%

Tillage and Fertilizer Management Effects on Phosphorus Runoff from Minimal Slope Fields

et al. 2018

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Phosphorus fertilization can increase P losses in surface runoff, but limited information is available for fields with <2% slopes in the US Midwest. Our objectives were to determine the effects of tillage-fertilizer placement (no-till-broadcast, strip till-broadcast; or strip till-deep placement, -15-cm subsurface band) and fertilizer rate applied in the fall (0, 52, or 90 kg PO ha yr) on runoff P concentrations and loads in fields with <2% slopes near Pesotum, IL, during fall and spring simulation runoff events, and to measure corn ( L.) and soybean [ (L.) Merr.] grain yield. Across four simulated runoff events, deep placement reduced dissolved reactive P (DRP) loads by 69 to 72% compared with the broadcast treatments. A tillage-fertilizer placement × P rate interaction showed that DRP and total P (TP) concentrations remained low when P was deep placed, regardless of P rate, whereas concentrations increased with increasing P rate for the broadcast treatments, but no differences existed for bioavailable P (BAP) (α = 0.05). At one site, rainfall simulation in the spring versus fall increased runoff volumes but sharply decreased BAP concentrations. During fall runoff simulations, deep placement reduced TP loads, and greater TP loads occurred with the 90- than the 52-kg PO ha yr rate. Similarly, when P was broadcast in the fall, DRP and TP concentrations were greater than deep-placed P, but no treatment differences occurred in the spring. Deep banding P and K did not reduce crop yield but reduced runoff losses of P from flat fields compared with broadcast P applications, particularly at high rates of P application.

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Section: Tillage and Fertilizer Management Effects On Phosphorus Runomentioning

confidence: 99%

Tillage and Fertilizer Management Effects on Phosphorus Runoff from Minimal Slope Fields

et al. 2018

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“…Nutrient sampling from dairy lagoons in Idaho revealed seasonally higher N and lower P, K, total solids, and volatile solids in spring than in fall, and higher concentrations of N, total solids, volatile solids, and chemical oxygen demand (COD) from freestall dairies than from dry-lot dairies, but no influence of dairy size (Leytem et al, 2017). Land application methods and timing also affect runoff water quality; loads of dissolved P, total P, and ammonium-N were significantly less after six weeks than at one to three days after application, and loads of dissolved P and total P were less for injection than for broadcast application (Schuster et al, 2017). A setback distance of 12.2 m on no-till cropland in Nebraska with 7.7 Mg ha -1 residue and 5% slope was found to reduce runoff concentrations of N, dissolved P, and K, among other constituents, to background levels (Gilley et al, 2017).…”

Section: Livestock Systems Land Application Of Livestock Manurementioning

confidence: 99%

“…While many water quality studies were discussed in other sections, e.g., agricultural drainage (Steppuhn and McArthur, 2017;Kaleita, 2017a, 2017b), crop modeling (Fang et al, 2017b), climate change Renkenberger et al, 2017;Wallace et al, 2017;Yasarer et al, 2017), land application of livestock waste (Gilley et al, 2017;Schuster et al, 2017;Williams and Edwards, 2017), forest resource management (Muwamba et al, 2017), and international watershed technology (Conte and Ahmadi, 2017;Muenich et al, 2017), additional studies addressed nutrient transport and water quality modeling.…”

Section: Water Qualitymentioning

confidence: 99%

Current Research in Land, Water, and Agroecosystems: ASABE Journals 2017 Year in Review

Douglas-Mankin¹

2018

Transactions of the ASABE

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Abstract. This article highlights current research into land and water resources, agroecosystems, and agricultural production systems published by the Natural Resources and Environmental Systems (NRES) community of ASABE journals ( and ) in 2017. Context, scope, and key results of the published articles are reviewed and perhaps more importantly areas for increased research attention are recommended. This article describes experimental and modeling advances in hydrology, agroecosystems, climate change effects, soil erosion, agricultural irrigation, agricultural drainage, forest resource management, livestock systems, natural treatment systems, international water issues, and water quality topic areas. Three special collections were published (International Watershed Technology, Crop Modeling and Decision Support for Optimizing Use of Limited Water, and Advances in Drainage). Other focal areas included 14 articles relating to livestock waste management, 13 concerning irrigated agricultural systems, 8 addressing climate change effects on land, water, and agroecosystems, and 16 on various aspects of soil erosion measurement and modeling. Building on the articles reviewed from 2017 and toward a vision of future agroecosystems research, the NRES community of ASABE journals strives to expand its role in making new knowledge accessible to sustain agricultural and natural systems in a changing world. With this goal in mind, recommendations for future research needs are proposed with an emphasis on increased application of remote sensing data to agroecosystems research, improved assessment of agroecosystem resiliency and vulnerability to land and climate change, development of integrated models of agroecosystem services, meeting stubborn water management challenges in agricultural production systems, and focusing on publishing fully reproducible model results. Keywords: Agriculture, Climate change, Composting, Crop models, Crop water use, Crop yield, Drainage, Drought, Environment, Field experimentation, Food, Forest, Greenhouse gas emissions, Hydrologic modeling, Hydrology, Irrigation, Livestock, Manure management, Mode

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Retention of Swine Slurry Constituents in Soil and Crop Residue as Affected by Setback Distance

Gilley

Bartelt–Hunt

Eskridge

et al. 2020

Water Air Soil Pollut

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Setbacks are prescribed distances from surface waters within which manure application is not allowed. Little information is available concerning the retention of swine slurry constituents in soil and crop residue materials within setback areas. This study was conducted to measure the retention of selected constituents within a setback area following the upslope application of swine slurry and the introduction of simulated rainfall. The no-till cropland site had a slope gradient of 4.9% and a mean winter wheat residue cover of 7.73 Mg ha −1. Soil and vegetative samples were collected on 3.7 m wide by 23.2 m long plots with and without the addition of slurry. Slurry was added at the 0-4.9 m distance on selected plots, and simulated rainfall was then applied to the entire plot area during two separate events. Soil cores and vegetative samples were collected from each plot at distances of 2.44, 5.18, 7.92, 11.0, 14.0, 17.1, and 20.1 m from the upper plot border. The soil cores were separated into 0-10, 10-20, and 20-30 cm depth increments. Significant increases in soil concentrations of chloride, nitrate, phosphorus, and zinc were found both within and downslope from the slurry application area. Residue materials located both within and downslope from the slurry application area contained significantly increased concentrations of boron, calcium, copper, magnesium, sulfur, and zinc. When estimating the downslope transport of constituents contained in swine slurry, contributions from runoff, soil, and residue should all be considered.

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Runoff Water Quality Characteristics Following Swine Slurry Application under Broadcast and Injected Conditions

Abstract: "Runoff water quality characteristics following swine slurry application under broadcast and injected conditions" (2017).

Cited by 7 publications

References 24 publications

Tillage and Fertilizer Management Effects on Phosphorus Runoff from Minimal Slope Fields

Tillage and Fertilizer Management Effects on Phosphorus Runoff from Minimal Slope Fields

Current Research in Land, Water, and Agroecosystems: ASABE Journals 2017 Year in Review

Retention of Swine Slurry Constituents in Soil and Crop Residue as Affected by Setback Distance

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