Wood chip soil amendments in restored wetlands affect plant growth by reducing compaction and increasing dissolved phenolics

2019 ◽  
Vol 27 (5) ◽  
pp. 1128-1136 ◽  
Author(s):  
Evan C. Wolf ◽  
Eliška Rejmánková ◽  
David J. Cooper
Keyword(s):  
Plant Growth ◽  
Soil Amendments ◽  
Wood Chip ◽  
Restored Wetlands

Soil amendments inhibited the cadmium accumulation in Ligusticum striatum DC. and improved the plant growth

2021 ◽  
Author(s):  
Xian Xiao ◽  
Meng Pei ◽  
Junjie Zhou ◽  
Shuo Sun ◽  
Chengcheng Li ◽  
...  
Keyword(s):  
Plant Growth ◽  
Soil Amendments ◽  
Cadmium Accumulation

scholarly journals Semiarid bunchgrasses accumulate molybdenum on alkaline copper mine tailings: assessing phytostabilization in the greenhouse

2021 ◽  
Vol 3 (8) ◽  
Author(s):  
Paul M. Antonelli ◽  
Matthew G. Coghill ◽  
Wendy C. Gardner ◽  
Lauchlan H. Fraser
Keyword(s):  
Mine Tailings ◽  
Soil Amendments ◽  
Block Design ◽  
Wood Chip ◽  
Biomass Accumulation ◽  
Shoot Biomass ◽  
Tissue Samples ◽  
Copper Mine ◽  
Copper Mine Tailings ◽  
Randomized Complete Block Design

AbstractPhytostabilization is the use of plants and soil amendments to physically stabilize and remediate contaminated mine wastes and to control wind and water erosion in semiarid environments. The aim of this study was to evaluate two native bunchgrass species’ (Pseudoroegneria spicata and Festuca campestris) biomass accumulation and metals uptake response to locally available soil amendments (compost, wood ash and wood chips) to determine their suitability for phytostabilization at an alkaline copper mine tailings site in British Columbia, Canada. In the greenhouse, bunchgrasses important as forage for livestock and wildlife were grown in tailings with various ash–compost–wood chip combinations and evaluated using a randomized complete block design with 13 treatments and 10 replicates. Plants were harvested after 90 d, and tissues were analyzed for root and shoot biomass. Tissue samples (n = 3) from three treatment subsets (ash, compost, blend) were selected for elemental analysis. Biomass increased with increasing compost applications, and the response was greatest for P. spicata. Shoot molybdenum exceeded the maximum tolerable level for cattle and was significantly higher when grasses were grown on the ash treatment (183–202 mg kg−1) compared to the others (19.7–58.3 mg kg−1). Translocation and root bioconcentration factors were highest on the ash treatment (2.53–12.5 and 1.75–7.96, respectively) compared to the other treatments (0.41–3.43 and 1.47–4.79, respectively) and indicate that both species are ‘accumulators.’ The findings suggest that these bunchgrasses were not ideal candidates for phytostabilization due to high shoot tissue molybdenum accumulation, but provide important considerations for mine restoration in semiarid grassland systems.

Pine wood chip aggregates for greenhouse substrates: effect of age on plant growth

2017 ◽  
pp. 269-276 ◽  
Author(s):  
W.G. Owen ◽  
B.E. Jackson ◽  
W.C. Fonteno
Keyword(s):  
Plant Growth ◽  
Wood Chip ◽  
Pine Wood ◽  
Effect Of Age

scholarly journals Effects of Soil Amendments on Heavy Metal Immobilization and Accumulation by Maize Grown in a Multiple-Metal-Contaminated Soil and Their Potential for Safe Crop Production

Toxics ◽  
2020 ◽  
Vol 8 (4) ◽  
pp. 102
Author(s):  
Fayuan Wang ◽  
Shuqi Zhang ◽  
Peng Cheng ◽  
Shuwu Zhang ◽  
Yuhuan Sun
Keyword(s):  
Heavy Metal ◽  
Plant Growth ◽  
Contaminated Soil ◽  
Crop Production ◽  
Metal Uptake ◽  
Soil Amendments ◽  
Heavy Metal Uptake ◽  
X Ray ◽  
Metal Immobilization ◽  
Heavy Metal Immobilization

Soil amendments have been proposed for immobilizing metallic contaminants, thus reducing their uptake by plants. For the safe production of crops in contaminated soil, there is a need to select suitable amendments that can mitigate heavy metal uptake and enhance crop yield. The present experiment compared the effects of three amendments, hydroxyapatite (HAP), organic manure (OM), and biochar (BC), on plant growth and heavy metal accumulation by maize in an acidic soil contaminated with Cd, Pb, and Zn, and their potential for safe crop production. Toxicity characteristic leaching procedure (TCLP) tests, energy dispersive X-ray spectroscopy (EDS) analysis, and X-ray diffraction (XRD) analysis were used to evaluate the effectiveness and mechanisms of heavy metal immobilization by the amendments. The results showed that shoot and root biomass was significantly increased by HAP and 1% OM, with an order of 1% HAP > 0.1% HAP > 1% OM, but not changed by 0.1% OM and BC (0.1% and 1%). HAP significantly decreased Cd, Pb, and Zn concentrations in both shoots and roots, and the effects were more pronounced at the higher doses. OM decreased the shoot Cd and Pb concentrations and root Zn concentrations, but only 1% OM decreased the shoot Zn and root Pb concentrations. BC decreased the shoot Cd and Pb concentrations, but decreased the shoot Zn and root Pb concentrations only at 1%. HAP decreased the translocation factors (TFs) of Cd, Pb, and Zn (except at the 0.1% dose). OM and BC decreased the TFs of Cd and Zn, respectively, at the 1% dose but showed no significant effects in other cases. Overall, plant P, K, Fe, and Cu nutrition was improved by HAP and 1% OM, but not by 0.1 OM and BC. Soil pH was significantly increased by HAP, 1% OM, and 1% BC, following an order of 1% HAP > 1% OM > 0.1% HAP > 1% BC. The TCLP levels for Cd, Pb, and Zn were significantly reduced by HAP, which can be partly attributed to its liming effects and the formation of sparingly soluble Cd-, Pb-, and Zn-P-containing minerals in the HAP-amended soils. To some extent, all the amendments positively influenced plant and soil traits, but HAP was the optimal one for stabilizing heavy metals, reducing heavy metal uptake, and promoting plant growth in the contaminated soil, suggesting its potential for safe crop production.

scholarly journals Physiochemical Properties and Plant Growth of The Hydroponic Substrate Using Waste Wood Chip

2015 ◽  
Vol 43 (3) ◽  
pp. 400-409
Author(s):  
Gu-Joong Kwon ◽  
Ji-Wook Yang ◽  
Hyo-Sub Park ◽  
Joon-Hyeong Cho ◽  
Dae-Young Kim
Keyword(s):  
Plant Growth ◽  
Wood Chip ◽  
Waste Wood ◽  
Physiochemical Properties

scholarly journals Plant-Dependent Soil Bacterial Responses Following Amendment With a Multispecies Microbial Biostimulant Compared to Rock Mineral and Chemical Fertilizers

2021 ◽  
Vol 11 ◽  
Author(s):  
Bede S. Mickan ◽  
Ahmed R. Alsharmani ◽  
Zakaria M. Solaiman ◽  
Matthias Leopold ◽  
Lynette K. Abbott
Keyword(s):  
Plant Growth ◽  
Plant Species ◽  
Soil Amendments ◽  
Subterranean Clover ◽  
Mineral Fertilizer ◽  
Soil Biodiversity ◽  
Rock Mineral ◽  
Wimmera Ryegrass ◽  
Bacterial Richness ◽  
Soil Bacterial

Biostimulants are gaining momentum as potential soil amendments to increase plant health and productivity. Plant growth responses to some biostimulants and poorly soluble fertilizers could increase soil microbial diversity and provide greater plant access to less soluble nutrients. We assessed an agricultural soil amended with a multispecies microbial biostimulant in comparison with two fertilizers that differed in elemental solubilities to identify effects on soil bacterial communities associated with two annual pasture species (subterranean clover and Wimmera ryegrass). The treatments applied were: a multispecies microbial biostimulant, a poorly soluble rock mineral fertilizer at a rate of 5.6 kg P ha–1, a chemical fertilizer at a rate of 5.6 kg P ha–1, and a negative control with no fertilizer or microbial biostimulant. The two annual pasture species were grown separately for 10 weeks in a glasshouse with soil maintained at 70% of field capacity. Soil bacteria were studied using 16S rRNA with 27F and 519R bacterial primers on the Mi-seq platform. The microbial biostimulant had no effect on growth of either of the pasture species. However, it did influence soil biodiversity in a way that was dependent on the plant species. While application of the fertilizers increased plant growth, they were both associated with the lowest diversity of the soil bacterial community based on Fisher and Inverse Simpson indices. Additionally, these responses were plant-dependent; soil bacterial richness was highly correlated with soil pH for subterranean clover but not for Wimmera ryegrass. Soil bacterial richness was lowest following application of each fertilizer when subterranean clover was grown. In contrast, for Wimmera ryegrass, soil bacterial richness was lowest for the control and rock mineral fertilizer. Beta diversity at the bacterial OTU level of resolution by permanova demonstrated a significant impact of soil amendments, plant species and an interaction between plant type and soil amendments. This experiment highlights the complexity of how soil amendments, including microbial biostimulants, may influence soil bacterial communities associated with different plant species, and shows that caution is required when linking soil biodiversity to plant growth. In this case, the microbial biostimulant influenced soil biodiversity without influencing plant growth.

scholarly journals Effect of Commercial Amendments on Immobilization of Arsenic, Copper, and Zinc in Contaminated Soil: Comprehensive Assessing to Plant Uptake Combined with a Microbial Community Approach

Minerals ◽  
2021 ◽  
Vol 11 (10) ◽  
pp. 1143
Author(s):  
Tuan Nguyen Nguyen Quoc ◽  
Zahra Derakhshan Nejad ◽  
Myung Chae Jung
Keyword(s):  
Microbial Community ◽  
Plant Growth ◽  
Growth Parameters ◽  
Soil Amendments ◽  
Diverse Range ◽  
Amended Soils ◽  
Soil Microbial ◽  
Biolog Ecoplate ◽  
Dry Biomass ◽  
Cu And Zn

Identifying the proper chemical and biological materials as soil amendments is a great concern because they replace soil properties and subsequently change the soil quality. Hence, this study was conducted to evaluate the effects of a diverse range of soil amendments including bentonite (B), talc (T), activated carbon (AC), and cornstarch (CS) in form of sole and composite on the immobilization and bioavailability of As, Cu, and Zn. The amendments were characterized by SEM, FT-IR, and XRF, and applied at 2% (w/w) in the experimental pots with an Asteraceae (i.e., lettuce) for 45 days to monitor plant growth parameters and soil microbial community. Soil pH from 6.1 ± 0.02 significantly increased in the amended soils with the maximum value found for TAC (7.4 ± 0.04). The results showed that soil amendments reduced easily in an exchangeable fractionation of As, Cu, and Zn with the maximum values found for BAC by 66.4%, AC by 84.2%, and T by 89.7% respectively. Adding B, T, AC, and their composites induced dry biomass of lettuce >40 wt.%, while CS and its composites did not affect the dry biomass of the plant. The average content of Cu and Zn in plant tissues decreased >45 wt% in B, AC, and their composites amended soils; meanwhile, AC and its composites mitigated As uptake by >30 wt.% in lettuce. The results of Biolog Ecoplate showed that the amending soils improved the microbial community, especially for composites (e.g., TCS). The results demonstrated that adding composites amendments provided an efficient method for the immobilization of metals and metalloids, and also induced plant growth parameters and microbial community.

scholarly journals Influence of Field-grow Fabric Containers and Various Soil Amendments on the Growth of Green Ash

1992 ◽  
Vol 10 (4) ◽  
pp. 218-221
Author(s):  
Janet C. Henderson-Cole ◽  
David L. Hensley
Keyword(s):  
Plant Growth ◽  
Slow Release ◽  
Soil Amendments ◽  
Green Ash ◽  
Slow Release Fertilizer ◽  
Growing Seasons ◽  
Root Restriction ◽  
Hydrophilic Gel

Abstract The influence of field-grow fabric containers (FGFC) and soil amendments (hydrophilic gel, peat and slow release fertilizer) on green ash height and caliper were studied for two years. Green ash seedlings were grown in 30.5 cm (12 in) FGFC or without root restriction throughout the study period. Heights and calipers increased less in plants grown with FGFC than in those without the containers during both growing seasons. Soil amendments had little effect on plant growth throughout the study period.

Biochar and biochar-compost as soil amendments to a vineyard soil: Influences on plant growth, nutrient uptake, plant health and grape quality

2014 ◽  
Vol 191 ◽  
pp. 117-123 ◽  
Author(s):  
Hans-Peter Schmidt ◽  
Claudia Kammann ◽  
Claudio Niggli ◽  
Michael W.H. Evangelou ◽  
Kathleen A. Mackie ◽  
...  
Keyword(s):  
Plant Growth ◽  
Nutrient Uptake ◽  
Soil Amendments ◽  
Plant Health ◽  
Grape Quality ◽  
Vineyard Soil
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