Selected soil physical properties and aggregate-associated carbon and nitrogen as influenced by gypsum, crop residue, and glucose

Walia, Maninder K.; Dick, Warren A.

doi:10.1016/j.geoderma.2018.01.022

Cited by 54 publications

(33 citation statements)

References 33 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…Soil extractable Ca, Mg, K and S concentrations at this site were 1140, 204, 56, and 12.1 mg kg –1 , respectively. Proportions of sand, silt and clay were 22, 30, 48% at Northwest and 16, 59, 25% at Wooster, respectively (Walia and Dick, 2018).…”

Section: Methodsmentioning

confidence: 99%

Effects of Gypsum Application Rate and Frequency on Corn Response to Nitrogen

et al. 2019

Self Cite

View full text Add to dashboard Cite

The effects of gypsum as a soil amendment and its interaction with nitrogen (N) applications in corn (Zea Mays L.) production are largely unknown. A 4-yr field study was conducted in Ohio, USA to evaluate (i) the effects of gypsum rates and rate frequencies at varying fertilizer N rates on corn grain yields, ear-leaf and grain nutrient concentrations, and on soil nutrients, and (ii) the interactive effects between N and gypsum applications. A splitplot experimental design was used with N rates (0, 84, 168, and 252 kg N ha -1 ) as the main plot factor and either gypsum application rate (0, 1.1 and 2.2 Mg ha -1 ) or application rate frequencies (i.e., 1.1 Mg ha -1 annually, 2.2 Mg ha -1 bi-annually, and 4.4 Mg ha -1 once every four years) as subplot factors. Overall, corn yield response to gypsum applications was inconsistent. A positive corn yield response to gypsum application occurred only in 2017 at the Northwest site. Gypsum applied at 4.4 Mg ha -1 significantly decreased yields at the Northwest site in 2017 and at the Wooster site in 2016 suggesting that the best management strategy may be to apply lower gypsum rates either annually or biannually. Gypsum applications did not improve corn response to N at either study site but significantly increased tissue, grain and extractable soil S concentrations with concentrations decreasing as the application frequency decreased. This suggests that where S deficiencies may occur, an annual rate of 1.1 Mg ha -1 or a bi-annual application of 2.2 Mg ha -1 would increase S availability. ). core Ideas• Corn response to N at different gypsum application rates and frequencies was evaluated. • Gypsum did not improve corn response to N at any of the study sites.• Corn yield response to gypsum applications was very inconsistent and site-specific. • Frequent gypsum applications at lower rates were better than a onetime large application.

show abstract

Section: Methodsmentioning

confidence: 99%

Effects of Gypsum Application Rate and Frequency on Corn Response to Nitrogen

et al. 2019

Self Cite

View full text Add to dashboard Cite

show abstract

“…Physical pathways have received little attention in research on litter-mediated PSFs, but it has long been known that plant litter has strong effects on the physical soil environment (Facelli and Pickett, 1991a), both in natural (Facelli and Pickett, 1991b) and agricultural ecosystems, i.e., via crop residues (Teasdale et al, 1991;Walia and Dick, 2018). The effects of plant litter on the physical soil environment have strong potential to feed back to plant performance through effects on seed germination, seedling establishment, and initial plant growth (Olson and Wallander, 2002;Asplund et al, 2018).…”

Section: Physical Pathwaysmentioning

confidence: 99%

The Role of Plant Litter in Driving Plant-Soil Feedbacks

Veen

Fry

Hooven

et al. 2019

Front. Environ. Sci.

View full text Add to dashboard Cite

Most studies focusing on plant-soil feedbacks (PSFs) have considered direct interactions between plants, abiotic conditions (e. g., soil nutrients) and rhizosphere communities (e.g., pathogens, mutualists). However, few studies have addressed the role of indirect interactions mediated by plant litter inputs. This is problematic because it has left a major gap in our understanding of PSFs in natural ecosystems, where plant litter is a key component of feedback effects. Here, we propose a new conceptual framework that integrates rhizosphere-and litter-mediated PSF effects. Our framework provides insights into the relative contribution of direct effects mediated by interactions between plants and soil rhizosphere organisms, and indirect effects between plants and decomposer organisms mediated by plant root and shoot litter. We distinguish between three pathways through which senesced root and shoot litter may influence PSFs. Specifically, we examine: (1) physical effects of litter (layer) traits on seed germination, soil structure, and plant growth; (2) chemical effects of litter on concentrations of soil nutrients and secondary metabolites (e.g., allelopathic chemicals); and (3) biotic effects of saprotrophic soil communities that can perform different functional roles in the soil food web, or that may have specialized interactions with litter types, thereby altering soil nutrient cycling. We assess the role of litter in PSF effects via physical, chemical and biotic pathways to address how litter-mediated feedbacks may play out relative to, and in interaction with, feedbacks mediated through the plant rhizosphere. We also present one of the first experimental studies to show the occurrence and species-specificity of litter-mediated feedbacks and we identify critical research gaps. By formally incorporating the plant-litter feedback pathway into PSF experiments, we will further our understanding of PSFs under natural conditions.

show abstract

“…[10][11][12][13] In the world, more than 15 million tons of gypsum waste from plasterboard is sent to landfills each year. 14,15) Its accumulation causes serious environmental problems, such as pollution of water, occupation of land and destruction of ecological systems. [10][11][12] Currently, many studies have been performed to treat gypsum waste to reduce its harm through preparing high-strength building gypsum materials, 16,17) fireproof panels, 18,19) and slag-making material, 20) etc.…”

Section: Transformation Behaviour Of Sulfur From Gypsum Waste (Caso 4mentioning

confidence: 99%

Transformation Behaviour of Sulfur from Gypsum Waste (CaSO<sub>4</sub>·2H<sub>2</sub>O) while Roasting with Tin-bearing Iron Concentrate for Tin Removal and Iron Recovery

2020

ISIJ Int.

View full text Add to dashboard Cite

Gypsum waste, with CaSO 4 •2H 2 O as the main ingredient, decomposed into SO 2 (g) at a proper temperature, according to previous research. It could sulfurize SnO 2 to SnS(g) in the presence of C or CO(g), based on which a method of roasting with gypsum waste (CaSO 4 •2H 2 O) for removing Sn from Sn-bearing iron concentrates was put forward in this paper. In addition, a traditional curing agent, FeS 2 , was introduced and comparatively studied. With FeS 2 used as the curing agent for tin sulfurization and removal, the FeS generated from the FeS 2 decomposition played a major role through its transformation to SO 2 (g) and COS(g) in mixed gases of 35 vol.%CO and 65 vol.%CO 2. Besides, the COS(g) had a better sulfurization effect on tin than SO 2 (g). The 'S' from gypsum waste (CaSO 4 •2H 2 O) was mainly transformed into FeS and Ca 3 Fe 4 S 3 O 6 upon roasting with tin-bearing iron concentrate in mixed gases of 35 vol.%CO and 65 vol.%CO 2 , both of which could sulfurize Sn(l) to SnS(g) also through their transformation to SO 2 (g) and COS(g). The amount of sulfur added by CaSO 4 •2H 2 O could be decreased compared with that added by FeS 2 due to the higher utilization efficiency of 'S' in CaSO 4 •2H 2 O. This process realized the cyclic utilization of gypsum waste, Sn effective removal and the iron pre-reduction from tin-bearing iron concentrate.

show abstract

Selected soil physical properties and aggregate-associated carbon and nitrogen as influenced by gypsum, crop residue, and glucose

Cited by 54 publications

References 33 publications

Effects of Gypsum Application Rate and Frequency on Corn Response to Nitrogen

Effects of Gypsum Application Rate and Frequency on Corn Response to Nitrogen

The Role of Plant Litter in Driving Plant-Soil Feedbacks

Transformation Behaviour of Sulfur from Gypsum Waste (CaSO<sub>4</sub>·2H<sub>2</sub>O) while Roasting with Tin-bearing Iron Concentrate for Tin Removal and Iron Recovery

Contact Info

Product

Resources

About