soil pH Articles
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Influence of soil pH on the toxicity of zinc oxide nanoparticles to the terrestrial isopod Porcellionides pruinosus
The effects of soil pH on the toxicity of ZnO nanoparticles (NPs) to the terrestrial isopod Porcellionides pruinosus were evaluated. Isopods were exposed to a natural soil amended with CaCO3 to reach three different pHCaCl2 levels (4.5, 6.2 and 7.3) and standard Lufa 2.2 soil (pH 5.5) spiked with ZnO NPs (30 nm), non‐nano ZnO (200 nm) and ionic Zn as ZnCl2. Toxicity was expressed based on ...
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Amelioration of acidic soil increases the toxicity of the weak base carbendazim to the earthworm Eisenia fetida
Amelioration of acidic soils is a common practice and may affect the bioavailability of an ionizable organic pollutant to organisms. The toxicity of the weak base carbendazim to the earthworm (Eisenia fetida) was studied in an acidic soil (pH‐H2O, 4.6) and in the ameliorated soil (pH‐H2O, 7.5). The results indicated that the median lethal concentration (LC50) of carbendazim for E. fetida ...
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Relationships between soil properties and toxicity of copper and nickel to bok choy and tomato in Chinese soils
The toxicity of copper (Cu) and nickel (Ni) to bok choy and tomato shoot growth was investigated in a wide range of Chinese soils with and without leaching with artificial rainwater. The results showed that the variations of Ni toxicity induced by soil properties were wider than that of Cu toxicity to both tomato and bok choy plant growth. Leaching generally decreased the toxicity of Cu and Ni ...
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New Download – Soil Geomorphology: A Pedological Guide to Soil Moisture Sensors
Developed by B. K. Bellingham, Soil Scientist at Stevens, this is an excellent resource for anyone installing soil moisture sensors and interpreting soil moisture data. Here’s what’s inside: Soil Geomorphology and Properties Soil Development Soil Texture and Components Soil Horizons Soil Orders and Taxonomy Soil pH Soil Bulk Density Shrink/Swell Clays Soil ...
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Economic returns from monitoring and remediation of acid soils with lime application - Case Study
A long term soil acidity monitoring study was conducted in the Gabby Quoi Quoi catchment located in the central agricultural region of Western Australia, measuring change in soil pH at GIS located sample points in 1999 and 2006. Of the 300 sites sampled, 75% of the topsoil and 85% of the midsoil sampled in 1999 had pH values < 5.0, with 15% of these soils having a pH value of < 4.0. Liming ...
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Soil and plant minerals associated with rice straighthead disorder induced by Arsenic
Application of As as monosodium methanearsonate (MSMA) to soil has become the common practice for rice (Oryza Sativa L.) straighthead evaluation, a physiological disorder. So far, no study has reported on soil mineral availability and plant mineral uptake as affected by MSMA. Understanding how MSMA influences the availability and uptake should help reveal the causal factors of straighthead. Six ...
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Soil pH sensor: Agriculture and Environmental Management
In recent years, the development of the soil pH sensor change the way that the soil pH monitoring. Provide real-time data to enable farmers to optimize land management practices.This article explores the significance of soil pH sensors, their key features and capabilities, the benefits and applications they offer, as well as the challenges and future directions in this field. Significance of Soil ...
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Transfer model of lead in soil‐carrot (Daucus carota L.) system and its food safety thresholds in soil
Reliable empirical models describing lead (Pb) transfer in soil‐plant systems are needed to improve soil environmental quality standards. A greenhouse experiment was conducted to develop soil‐plant transfer models to predict Pb concentrations in carrot (Daucus carota L.). Soil thresholds for food safety were then derived inversely using the prediction model in view of the maximum allowable ...
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The effect of soil properties on the toxicity of silver to the soil nitrification process
Silver (Ag) is being increasingly used in a range of consumer products, predominately as an antimicrobial agent, leading to a higher likelihood of its release into the environment. This study investigated the toxicity of Ag to the soil nitrification process in a European and Australian soils in both leached and unleached conditions. Overall, leaching of the soils was found to have a minimal ...
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Persistence and sorption of imazapyr in three Argentinean soils
Imazapyr is a herbicide widely used for weed control in imidazolinone‐tolerant sunflower. Imazapyr has a high potential for leaching into groundwater because it is highly water‐soluble, persistent in soil, and only weakly sorbed by soils. There is a lack of information available in Argentina concerning groundwater leaching of imazapyr. Therefore, the objective of the present study was to ...
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Pteris multifida Poir., a new arsenic hyperaccumulator: characteristics and potential
This paper reports a new arsenic hyperaccumulator, Pteris multifida Poir, a fern that grows widely in the southeast of China. The results show that the average arsenic content in the fronds was 1144.78 mg/kg, with a highest value of 2061 mg/kg. The average arsenic content in the roots was 692.7 mg/kg, and the average bioconcentration factor was 1.2, with a highest value of 1.78. The average ...
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The effect of pH on the toxicity of ZnO nanoparticles to Folsomia candida in amended field soil
The effect of soil pH on the toxicity of 30 nm ZnO to Folsomia candida was assessed in Dorset field soils with pHCaCl2 adjusted to 4.31, 5.71 and 6.39. To unravel the contribution of particle size and dissolved Zn, 200 nm ZnO and ZnCl2 were tested. Zn sorption increased with increasing pH and Freundlich kf values ranged from 98.9 to 333 (L/kg)1/n for 30 nm ZnO and from 64.3 to 187 (L/kg)1/n ...
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Restoration of high zinc and lead tailings with municipal biosolids and lime: a field study
Received for publication February 26, 2008. A field study was conducted to test the ability of biosolids (BS) and different types of lime to increase soil pH, neutralize subsoil acidity, and restore a vegetative cover to alluvial mine tailings in Leadville, CO. The tailings had soil pH of 5.2 and total Cd, Pb, and Zn of 75 ± 20, 2600 ± 1100, and 6700 ± 1900 mg kg–1. Types of lime included ...
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Prediction of solid‐solution partitioning coefficients (Kd) for cationic metals in soils using mid‐infrared diffuse reflectance spectroscopy
Partial least squares regression (PLSR) models, using mid‐infrared (MIR) diffuse reflectance Fourier transformed (DRIFT) spectra, were used to predict distribution coefficient (Kd) values for selected added soluble metal cations (Ag+, Co2+, Cu2+, Mn2+, Ni2+, Pb2+, Sn4+, and Zn2+) in 4813 soils of the Geochemical Mapping of Agricultural Soils (GEMAS) program. For the development of the PLSR ...
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Factors influencing the spatial distribution of Organochlorine pesticides in soils surrounding chemical industrial parks
Topsoil samples (n = 105) were collected to study the distribution of dichlorodiphenyltrichloroethane (DDT) and hexachlorocyclohexane (HCH) residues in the vicinity of chemical industrial parks in Tianjin, China. The occurrence and distribution of target organochlorine pesticides (OCPs) were mapped to identify the spatial variation using Geographical Information System (GIS). In general, the ...
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The importance of soil multi-parameter sensors
Soil parameter sensors are essential tools for farmers, gardeners and conservationists. These sensors measure a variety of soil characteristics, such as moisture, pH, temperature and nutrient levels, helping users understand the health and quality of the soil. The importance of soil parameter sensors Healthy soil is essential for the growth of plants and crops. Understanding the various ...
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Using Soil Sensors to Monitor Soil pH and Salinity
Background:Soil pH and salinity are two important parameters affecting plant growth and development. Therefore, monitoring these characteristics is crucial for agronomists and gardeners alike. The use of soil sensors has revolutionized the way we monitor and manage these soil properties. This paper explores the application of soil sensors in monitoring soil pH and salinity, their applications in ...
By JXCT
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Establishment and growth of two willow species in a Riparian zone impacted by mine tailings
Received for publication April 2, 2008. A field study was initiated to determine survival, growth characteristics, and metal uptake of two montane riparian willow species, Geyer (Salix geyeriana Andersson) and mountain (S. monticola Bebb) willow, grown in amended fluvial mine tailing deposits. Revegetation was done with staked and previously rooted cuttings to determine if planting method had an ...
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Residual effect of agro–industrial wastes on soil properties and Zea mays (L.) nutrition
The residual effect of agro–industrial wastes previously used for potato growing was investigated for soil characteristics and maize nutrition. The soil pH increased and organic matter decreased during maize growth. Nitrogen and K were generally low, but statistically higher almost in waste–applied soils. Soil phosphorus was greatest in the 'Only Wastes' and 'Min.P + Wastes NK' treatments. N, P, ...
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Effects of climate change on the toxicity of soils polluted by metal mine wastes to Enchytraeus crypticus
The present study aimed to assess the effects of climate change on the toxicity of metal‐polluted soils. Bioassays with Enchytraeus crypticus were performed in soils polluted by mine wastes (mine tailing, forest and watercourse) and under different combinations of temperature (20 and 25 °C) and soil moisture content (50 and 30% of the soil water holding capacity). Survival and reproduction ...
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