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- Author:
- Dexter B. Watts, et al. ; Javier M. Gonzalez; Warren A. Dick; Rafiq Islam; Norman R. Fausey; Dennis C. Flanagan; Tara T. VanToai; Marvin T. Batte; Randall C. Reeder; David Kost; Vinayak S. Shedekar; Show all 11 Authors
- Source:
- Soil Science Society of America journal 2022 v.86 no.3 pp. 781-794
- ISSN:
- 0361-5995
- Subject:
- Glycine max; Secale cereale; Zea mays; agricultural land; chemical analysis; corn; cover crops; flue gas desulfurization; food production; food security; gypsum; no-tillage; plant growth; rye; soil; soil amendments; soil chemistry; soil quality; soybeans; water quality
- Abstract:
- ... Worldwide food security is a pressing concern as population increases. Thus, there is a need to increase food production on existing farmland while improving soil health and water quality. We report the effect of two conservation practices, flue‐gas desulfurization (FGD) gypsum (hereafter “gypsum”) soil amendment and cereal rye (Secale cereale L.) cover crop, on soil chemistry. Emphasis was placed ...
- Handle:
- 10113/7778001
- DOI:
- 10.1002/saj2.20394
- https://doi.org/10.1002/saj2.20394
- Author:
- Dexter B. Watts, et al. ; Yaru Lin; Joseph W. Kloepper; Yucheng Feng; H. Allen Torbert; Show all 5 Authors
- Source:
- Communications in soil science and plant analysis 2020 v.51 no.2 pp. 250-264
- ISSN:
- 1532-2416
- Subject:
- Zea mays; absorption; biomass production; chlorophyll; corn; crop yield; developmental stages; drought; fertilizers; greenhouse experimentation; irrigation rates; leaf area; leaves; nutrients; phytomass; plant growth; plant growth substances; plant growth-promoting rhizobacteria; plant height; poultry manure; rhizosphere; roots; soil; urea; water stress
- Abstract:
- ... Water availability is a major constraint affecting the growth and yield of crops/plants worldwide. Some studies have shown that specific strains of free-living bacteria found in the plant rhizosphere can improve the tolerance of plants during water stress. A greenhouse study was conducted to evaluate the effects of two mixtures of plant growth-promoting rhizobacteria (PGPR) and two fertilizer sour ...
- DOI:
- 10.1080/00103624.2019.1705329
- https://doi.org/10.1080/00103624.2019.1705329
- Author:
- Dexter B. Watts, et al. ; Jian Wang; Qinqian Meng; Fan Ma; Qingfeng Zhang; Penghui Zhang; Thomas R. Way; Show all 7 Authors
- Source:
- AgriEngineering 2022 v.4 no.2 pp. 533-543
- ISSN:
- 2624-7402
- Subject:
- disturbed soils; growth models; hydraulic flumes; prediction; runoff; soil density; soil erosion; soil structure; tillage
- Abstract:
- ... Agricultural soils undergo periods of saturation followed by desiccation throughout the course of a growing season. It is believed that these periods of wetting and drying influence soil structure and may affect the rate of soil detachment. Thus, an experiment was conducted to investigate the influence of a disturbed soil (soil sieved to simulate tillage) subjected to various wetting and drying cy ...
- DOI:
- 10.3390/agriengineering4020036
- https://doi.org/10.3390/agriengineering4020036
- Author:
- Dexter B. Watts, et al. ; Rajveer Singh; Rishi Prasad; Dennis P. Delaney; Show all 4 Authors
- Source:
- Agronomy 2021 v.11 no.8 pp. -
- ISSN:
- 2073-4395
- Subject:
- Glycine max; agronomy; application rate; experimental design; field experimentation; loamy sand soils; nutrient content; poultry manure; sandy loam soils; silty clay loam soils; soybeans
- Abstract:
- ... Broiler litter (BL) has the potential to be used as an alternative multi-nutrient source for soybean (Glycine max L.) production. While previous research on soybean yield response to BL has reported inconsistent results, the effects of BL application on soybean seed nutrient concentrations are largely unknown or less studied. The objective of this two-year field study was to investigate the effect ...
- DOI:
- 10.3390/agronomy11081523
- https://doi.org/10.3390/agronomy11081523
- Author:
- Dexter B. Watts, et al. ; Yaru Lin; H. Allen Torbert; Julie A. Howe; Show all 4 Authors
- Source:
- Crop, forage & turfgrass management 2019 v.5 no.1 pp. -
- ISSN:
- 2374-3832
- Subject:
- Glycine max; Triticum aestivum; conservation tillage; continuous cropping; double cropping; experimental design; fallow; grain yield; loamy sand soils; nitrogen; nitrogen fertilizers; nutrients; poultry manure; sandy loam soils; soybeans; winter; winter wheat
- Abstract:
- ... Poultry litter (PL) application and double cropping are management practices that could be used with conservation tillage to increase yields compared with conventional mono-cropping systems. The objective of this study was to evaluate winter wheat (Triticum aestivum L.) and soybean [Glycine max (L.) Merr.] yield response to PL alone and combinations of PL and inorganic N versus inorganic N alone w ...
- Handle:
- 10113/6562446
- DOI:
- 10.2134/cftm2018.10.0082
- https://doi.org/10.2134/cftm2018.10.0082
- Author:
- Dexter B. Watts, et al. ; Thomas R. Way; Show all 2 Author
- Source:
- Soil & tillage research 2019 v.194 pp. 104325
- ISSN:
- 0167-1987
- Subject:
- Zea mays; band placement; corn; crop production; cropping systems; fertilizer application; mineral fertilizers; nitrogen; no-tillage; nutrients; phosphorus; poultry manure; rain; rainfall simulation; runoff; soil; surface water; Southeastern United States
- Abstract:
- ... Poultry litter (PL) is often used as an alternative nutrient source to inorganic fertilization for crop production in the southeastern US. Historically, PL has been broadcast applied on the soil surface, leaving the nutrients susceptible to runoff. Developments made in recent years allow for placing PL in narrow bands below the soil surface with minimal disturbance. This technological advancement ...
- DOI:
- 10.1016/j.still.2019.104325
- https://doi.org/10.1016/j.still.2019.104325
- Author:
- Dexter B. Watts, et al. ; Thomas R. Way; Haile Tewolde; Show all 3 Authors
- Source:
- Applied engineering in agriculture v.35 no.5 pp. 815-822
- ISSN:
- 0883-8542
- Subject:
- ammonia; band placement; conveyors; impellers; lint cotton; lint yield; mass flow; nutrients; poultry manure; rocks; runoff; soil; volatilization; water content
- Abstract:
- ... Broadcast application is the typical application method for poultry litter, which is a mixture of poultry manure and a bedding material. Applying poultry litter in subsurface bands reduces concentrations of nutrients from the litter in surface runoff water, reduce loss of ammonia to volatilization, and has been shown to increase cotton lint yield, relative to conventional broadcast application. An ...
- Handle:
- 10113/6720110
- DOI:
- 10.13031/aea.13146
- https://doi.org/10.13031/aea.13146
- Author:
- Dexter B. Watts, et al. ; H. Allen Torbert; Eton Codling; Show all 3 Authors
- Source:
- International journal of poultry science 2019 v.18 no.9 pp. 445-453
- ISSN:
- 1682-8356
- Subject:
- NPK fertilizers; barns; body size; broiler breeders; calcium; carbon; composted manure; flocks; litter (bedding); livestock housing; livestock husbandry; manure storage; nitrogen content; nutrient content; oxides; phosphorus; phosphorus content; poultry housing; poultry manure; pullets; Alabama
- Abstract:
- ... Background and Objectives: It is believed that the poultry litter’s nutrient composition is influenced by management. However, limited information exists on whether current poultry litter management strategies influence litter nutrients. To fill this knowledge gap, Alabama poultry producers were surveyed to evaluate their management strategies and asked to submit a litter sample to determine how t ...
- Handle:
- 10113/6625372
- DOI:
- 10.3923/ijps.2019.445.453
- https://doi.org/10.3923/ijps.2019.445.453
- Author:
- Dexter B. Watts, et al. ; H. Allen Torbert; Show all 2 Author
- Source:
- Journal of environmental quality 2016 v.45 no.3 pp. 1071-1079
- ISSN:
- 0047-2425
- Subject:
- Cynodon dactylon; coastal plains; eutrophication; growing season; gypsum; pastures; phosphorus; poultry manure; rainfall simulation; residual effects; runoff; Southeastern United States
- Abstract:
- ... Controlling the threat that pastures intensively managed with poultry litter (PL) pose to accelerating eutrophication is a major issue in the southeastern United States. Gypsum (CaSO₄) has been identified as a promising management tool for ameliorating litter P losses to runoff. Thus, research was conducted to elucidate gypsum’s residual effects on P losses from a bermudagrass (Cynodon dactylon L. ...
- Handle:
- 10113/62732
- DOI:
- 10.2134/jeq2015.04.0203
- https://doi.org/10.2134/jeq2015.04.0203
- Author:
- Dexter B. Watts, et al. ; Kipling S. Balkcom; Leah M. Duzy; Francisco J. Arriaga; Dennis P. Delaney; Show all 5 Authors
- Source:
- Agronomy journal 2018 v.110 no.4 pp. 1233-1242
- ISSN:
- 0002-1962
- Subject:
- Kandiudults; autumn; biomass production; carbon nitrogen ratio; conservation tillage; cover crops; crop residues; fertilizer rates; fertilizer requirements; growing season; kaolinitic soils; loam soils; nitrogen fertilizers; organic fertilizers; poultry; poultry manure; rye; sand; spring; Alabama
- Abstract:
- ... Winter cereal cover crops are necessary to achieve maximum benefits of conservation tillage in the southeastern United States. These benefits generally increase as cover crop biomass increases; therefore, we conducted a study to evaluate N application times, sources, and optimal rates to maximize cover crop biomass production at Headland, AL, on a Fuquay sand (loamy, kaolinitic, thermic Arenic Pli ...
- Handle:
- 10113/6563658
- DOI:
- 10.2134/agronj2017.08.0505
- https://doi.org/10.2134/agronj2017.08.0505
- Author:
- Dexter B. Watts, et al. ; Pamela Calvo; Joseph W. Kloepper; H. Allen Torbert; Show all 4 Authors
- Source:
- Zeitschrift für Pflanzenernährung und Bodenkunde 2017 v.180 no.1 pp. 56-70
- ISSN:
- 1436-8730
- Subject:
- Zea mays; biomass; corn; developmental stages; fertilizer application; fine roots; metabolites; nitrates; nitrogen; nitrogen content; nitrogen fertilizers; nutrient content; nutrient uptake; phosphorus; potassium; root growth; surface area; urea
- Abstract:
- ... Microbial‐based inoculants have been reported to stimulate plant growth and nutrient uptake. However, their effect may vary depending on the growth stage when evaluated or fertilizer applied. Thus, the objective of this study was to test the hypothesis that microbial‐based inoculants known to promote root growth and nutrient uptake will promote plant growth, enhance early root development, and inc ...
- Handle:
- 10113/5879525
- DOI:
- 10.1002/jpln.201500616
- CHORUS:
- 10.1002/jpln.201500616
- https://doi.org/10.1002/jpln.201500616
- Author:
- Dexter B. Watts, et al. ; Jian Wang; Qinqian Meng; Thomas R. Way; Qingfeng Zhang; Show all 5 Authors
- Source:
- Applied engineering in agriculture v.33 no.4 pp. 551-558
- ISSN:
- 0883-8542
- Subject:
- agricultural land; best management practices; data collection; economic resources; energy; rain; rain intensity; raindrop impact; rainfall energy; soil; soil erosion; soil erosion models; terminal velocity; China
- Abstract:
- ... The Loess Plateau of China is regarded as the most intensively eroded region in the world and soil erosion caused by raindrop impact is a common occurrence on agricultural land within this region. Therefore, understanding the influence of rainfall energy on the soil surface is needed to improve prescriptions for best management practices aimed at mitigating erosion. Disdrometers for measuring rain ...
- Handle:
- 10113/5860541
- DOI:
- 10.13031/aea.11518
- https://doi.org/10.13031/aea.11518
- Author:
- Dexter B. Watts, et al. ; H. Allen Torbert; Rufus L. Chaney; Show all 3 Authors
- Source:
- Journal of environmental quality 2018 v.47 no.4 pp. 865-872
- ISSN:
- 0047-2425
- Subject:
- antimony; arsenic; barium; beryllium; cadmium; calcium; chromium; cobalt; copper; flue gas desulfurization; fly ash; gypsum; industrial byproducts; iron; lead; magnesium; manganese; manure spreading; nickel; nutrients; phosphorus; plant response; potassium; poultry manure; rainfall simulation; runoff; selenium; sodium; soil; soil pollution; surface water; thallium; toxic substances; vanadium; water pollution; zinc
- Abstract:
- ... There are concerns regarding the fate of nutrients from surface application of animal manure. One approach to reduce losses of P is to treat manure with industrial byproducts such as flue gas desulfurization (FGD) gypsum. However, concerns regarding potentially toxic elements contributed to the environment have arisen based on previous element-rich forms of FGD gypsum that included fly ash, wherea ...
- Handle:
- 10113/6562445
- DOI:
- 10.2134/jeq2017.11.0437
- https://doi.org/10.2134/jeq2017.11.0437
- Author:
- Dexter B. Watts, et al. ; H. Allen Torbert; Show all 2 Author
- Source:
- Soil science 2017 v.182 no.1 pp. 18-27
- ISSN:
- 0038-075X
- Subject:
- Cynodon dactylon; Hapludults; aluminum; ammonium nitrogen; byproducts; calcium; electricity; flue gas desulfurization; growing season; gypsum; iron; magnesium; manganese; nitrate nitrogen; nitrogen; phosphorus; poultry manure; power generation; rainfall simulation; runoff; sandy loam soils; soil amendments; soil structure; sulfur; surface water; United States
- Abstract:
- ... Considerable amounts of flue gas desulfurization (FGD) gypsum are being produced as a by-product of generating electricity. As a result, beneficial reuse of this by-product is being sought to reduce landfilling and its associated cost. The use of this by-product as a low-cost soil amendment for suppling Ca and S to crops, improving soil structure, or reducing P loss from agricultural fields may be ...
- Handle:
- 10113/5661739
- DOI:
- 10.1097/SS.0000000000000189
- https://doi.org/10.1097/SS.0000000000000189
- Author:
- Dexter B. Watts, et al. ; Katy E. Chapman; H. Allen Torbert; Show all 3 Authors
- Source:
- European Agrophysical Journal 2016 v.3 no.3 pp. 76-90
- ISSN:
- 2296-7664
- Subject:
- air; ammonia; coatings; detectors; gas emissions; glass; oxalic acid; quantitative analysis; soil; volatilization
- Abstract:
- ... A modified low-cost method of measuring ammonia (NH3) volatilization is described for use with static chambers. This technique utilizes glass tubes coated with oxalic acid placed inside the chambers to adsorb NH3 being evolved from soil. The advantage of this procedure is that it can be used to quantify NH3 emissions from field plots used for evaluating multiple management practices in an agricult ...
- Handle:
- 10113/5661731
- DOI:
- 10.17830/j.eaj/2016.03.078
- https://doi.org/10.17830/j.eaj/2016.03.078
16. Influence of Poultry Litter on Crop Productivity under Different Field Conditions: A Meta-Analysis
- Author:
- Dexter B. Watts, et al. ; Yaru Lin; Edzard van Santen; Guanqun Cao; Show all 4 Authors
- Source:
- Agronomy journal 2018 v.110 no.3 pp. 807-818
- ISSN:
- 0002-1962
- Subject:
- Cynodon dactylon; Festuca arundinacea; band placement; clay loam soils; conventional tillage; corn; corn silage; cotton; crop production; crops; fertilizer application; loam soils; meta-analysis; mineral fertilizers; no-tillage; organic fertilizers; peanuts; poultry manure; rice; sandy loam soils; sandy soils; silt loam soils; silty clay loam soils; silty clay soils; soil properties; soybeans; strip tillage; wheat
- Abstract:
- ... Research has shown that poultry litter (PL) can be used as a nutrient source for crop production. However, yield responses often varied when compared with inorganic fertilizer (IF) depending on soil type, management conditions, and PL application practices. Therefore, we reviewed the literature and conducted a meta-analytic assessment to summarize the effects of PL vs. IF on yield response under d ...
- Handle:
- 10113/6563660
- DOI:
- 10.2134/agronj2017.09.0513
- https://doi.org/10.2134/agronj2017.09.0513
17. Influence of Plant Growth-Promoting Rhizobacteria on Corn Growth Under Different Fertility Sources
- Author:
- Dexter B. Watts, et al. ; Yaru Lin; Joseph W. Kloepper; H. Allen Torbert; Show all 4 Authors
- Source:
- Communications in soil science and plant analysis 2018 v.49 no.10 pp. 1239-1255
- ISSN:
- 1532-2416
- Subject:
- Zea mays; aboveground biomass; biosolids; corn; developmental stages; greenhouse experimentation; leaf area; phytomass; plant growth-promoting rhizobacteria; plant height; poultry manure; root growth; urea; vegetative growth
- Abstract:
- ... A greenhouse study was conducted to evaluate the effects of plant growth-promoting rhizobacteria (PGPR) on root establishment and biomass production of corn (Zea mays L.) using three fertility sources (poultry litter (PL), biosolids, and urea). Applying PL significantly improved root morphological parameters and increased plant biomass at the V4, V6, and VT growth stages when compared to the other ...
- Handle:
- 10113/5952997
- DOI:
- 10.1080/00103624.2018.1457155
- https://doi.org/10.1080/00103624.2018.1457155
- Author:
- Dexter B. Watts, et al. ; Yaru Lin; Thomas R. Way; Show all 3 Authors
- Source:
- Agronomy journal 2017 v.109 no.4 pp. 1678-1686
- ISSN:
- 0002-1962
- Subject:
- Gossypium hirsutum; ammonium sulfate; application rate; band placement; chlorophyll; cotton; crop yield; fertilizer application; fertilizers; greenhouse experimentation; leaf area; leaves; loamy sand soils; nitrogen; phosphorus; phytomass; poultry manure; rowcrops; runoff; seedling emergence; seeds; sowing; surface water; volatilization; Southeastern United States
- Abstract:
- ... Interest in using poultry litter (PL) as a nutrient source for row crop production has increased in the southeastern United States. Poultry litter is generally broadcasted on the soil surface. This practice exposes N to volatilization and P to loss with surface water runoff, which potentially negatively impacts the environment. Placing PL in narrow bands below the soil surface has been shown to re ...
- Handle:
- 10113/6562447
- DOI:
- 10.2134/agronj2016.09.0541
- https://doi.org/10.2134/agronj2016.09.0541
- Author:
- Dexter B. WATTS, et al. ; Zhongqi HE; Irenus A. TAZISONG; Xinhua YIN; Zachary N. SENWO; Henry Allen TORBERT; Show all 6 Authors
- Source:
- Pedosphere 2019 v.29 no.2 pp. 180-194
- ISSN:
- 1002-0160
- Subject:
- Ultisols; ammonium nitrogen; base saturation; calcium; carbon; cation exchange capacity; copper; corn; cover crops; crop residues; cropping systems; fertilizer application; magnesium; manganese; nitrate nitrogen; no-tillage; nutrient management; nutrients; organic fertilizers; pH; phosphorus; potassium; poultry manure; runoff; sodium; soil physical properties; soil sampling; soybeans; standard deviation; sulfur; sustainable agriculture; total nitrogen; wheat; zinc; Alabama
- Abstract:
- ... Sustainable agricultural practices have been steadily increasing in the last couple of decades. These management practices frequently involve cover crops, less or no-tillage, and organic fertilization. In this study, we evaluated the effects of cropping systems, tillage and no-tillage, and the application of poultry litter (PL) on selected soil physicochemical properties and soil test nutrients. S ...
- DOI:
- 10.1016/S1002-0160(19)60797-6
- https://doi.org/10.1016/S1002-0160(19)60797-6
- Author:
- Dexter B. Watts, et al. ; H. Allen Torbert; Show all 2 Author
- Source:
- Journal of environmental quality 2014 v.43 no.1 pp. 273-280
- ISSN:
- 0047-2425
- Subject:
- Cynodon dactylon; Hapludults; aluminum; antimony; barium; boron; cadmium; calcium; chromium; coastal plain soils; coastal plains; cobalt; copper; detection limit; environmental fate; fuel production; gypsum; heavy metals; iron; land application; lead; magnesium; manganese; mercury; nickel; nutrients; pastures; phosphorus; potassium; poultry manure; rainfall simulation; runoff; sandy loam soils; selenium; silicon; sodium; water quality; zinc
- Abstract:
- ... There are growing concerns regarding the fate of nutrients, especially phosphorus (P), from land application of animal waste. One approach being studied to reduce runoff losses of P is to treat manure or the soil receiving manure with chemical amendments such as gypsum. This study used rainfall simulations to examine the impact of flue gas desulfurization (FGD) gypsum application on runoff nutrien ...
- Handle:
- 10113/62468
- DOI:
- 10.2134/jeq2012.0422
- https://doi.org/10.2134/jeq2012.0422
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