14 results for group: rock-dust-1
Basalt Rock Dust Amendment on Soil Health Properties and Inorganic Nutrients—Laboratory and Field Study at Two Organic Farm Soils in New England, USA
Justin B. Richardson
ABSTRACT:
Basalt rock dust (RD) is a rock quarry byproduct that may improve soil health in organic farming systems. RD was applied at two contrasting organic farms (the no-till VT-Farm in Thetford, Vermont, and the tilled MA-Farm in Barre, Massachusetts) and in soil batch reactors to investigate the impacts of basalt RD applications (6.7 tons ha−1) on physical and chemical soil health properties. Triplicate soil pits at two fields (RD and no RD) at each farm were sampled down between 80 to 110 cm depths in 2020. Median coarse (>2 mm) and very coarse aggregates (>50 mm) increased by 15% to 25%, and soil organic carbon ...
Soil physicochemical data at Two New England Farms with and without Basalt Rock Dust Application
Justin Richardson
ABSTRACT:
Soil physical and chemical data were collected from Cedar Circle Farm and Education Center in Thetford Vermont and Many Hands Farm in Barre, Massachusetts collected in Spring 2021. At each farm, two field were sampled. One with basalt rock dust application of 1.1 tonnes per hectare and an adjacent field without. Included in this data set are CSV files of: 1) ‘pH’ = Soil pH data for each soil horizon averaged for the three soil pit replicates 2) ‘Texture’ = Soil Texture for select horizons averaged for the three soil pit replicates 3) ‘SOC’ = Soil organic carbon concentrations and pool data for each soil ...
Potential of basalt dust to improve soil fertility and crop nutrition
ABSTRACT:
The search for higher yields, lower production costs, and increased sustainability in agriculture implies optimizing crop nutritional management. In this sense, basalt dust has shown potential to improve soil fertility and crop nutrition. Thus, the goal was to evaluate the potential use of basalt dust in a controlled environment. First, an experiment was carried out on soils with contrasting textures (sandy and medium) under a random design, with four replications. These soils were incubated with basalt dust doses for 90 days, and later analyzed for chemical properties. Then, after soil incubation, four experiments were carried out in a ...
Parana basin basalt powder: A multinutrient soil amendment for enhancing soil chemistry and microbiology
ABSTRACT:
This study evaluated the effects of Paran´a Basin basalt powder, a mining byproduct from southern Brazil, on the macro- and micronutrient content of two soil types, Oxisol (OX) and Typic Quartzipsamment (TQ), as well as the metabolic activity of soil microorganisms. Basalt powder doses were determined based on CaO levels required to correct Ca2+ levels in each soil, ranging from 0 to 4 times the recommended amount. Soil samples were collected for analysis after 60 and 170 days of incubation to assess soil attributes. Additionally, a laboratory study examined soil basal respiration (SBR) after 168 days of greenhouse incubation. The ...
BIOGEOCHEMICAL POTENTIAL OF INDIA – by Dr. Ishfaq Ahmad Mir-Meeting Recording
TITLE PAGE:
India's biogeochemical potential to feed the country and stabilize the climate
Dr. Ishfaq Ahmad Mir
Senior Geologist Geological Survey of India
State Unit Karnataka and Goa Bengaluru
Presented to the Geological Society of India; June , 2024
RECORDING:
SLIDES:
ERW Talk.pptx
USE OF BLENDS OF SILICATE AGROMINERALS AS A K SOURCE FOR SOYBEAN CROPS
This study aimed to test the efficiency of blends of silicate agrominerals as K sources for soybean crops. The experiment was conducted in the surroundings of Embrapa Cerrados, Planaltina – DF (TN: city in the Midwest, Brazil), in two field areas with similar climate conditions and different soil types: a medium texture soil and a clay soil. The experiment was carried out in 6 random blocks, with the following treatments: syenite and biotite schist (silicate rocks), and potassium chloride (conventional fertilizer), in doses of 0 kg, 60 kg, 120 kg, 240 kg, and 480 kg of K2O ha-1. The soil was prepared and the treatments on each plot were manually ...
Increased yield and CO2 sequestration potential with the C4 cereal Sorghum bicolor cultivated in basaltic rock dust-amended agricultural soil
Mike E. Kelland, Peter W. Wade, Amy L. Lewis, Lyla L. Taylor, Binoy Sarkar, M. Grace Andrews, Mark R. Lomas, T. E. Anne Cotton, Simon J. Kemp, Rachael H. James, Christopher R. Pearce, Sue E. Hartley, Mark E. Hodson, Jonathan R. Leake, Steven A. Banwart, David J. Beerling
Abstract
Land-based enhanced rock weathering (ERW) is a biogeochemical carbon dioxide removal (CDR) strategy aiming to accelerate natural geological processes of carbon sequestration through application of crushed silicate rocks, such as basalt, to croplands and forested landscapes. However, the efficacy of the approach when undertaken with basalt, and its potential co-benefits ...
Applications of Diabase Rock Dust in Brixlegg Forest
Foresters are applying lime in the Austrian forests against acid rain. They know that lime is too alkaline and destroys the humus because it destroys the acid-alkaline balance. Lime destroys the nitrogen compounds in the humus and it leaches nitrogen into the water which is a pollutant. Measurements show that with acid rain comes about 40, 50, 60 kilos of nitrogen per hectare.
Pot Test Trial II of Basalt, Serpentine, Bentonite, Feldspar, and Kaolin
This is a report on the second set of pot test trials run by Dr. Gernot Graefe at the Gartnerhof in Ganserndorf Sud near Vienna.
Remineralization Trials: Minplus and Bananas A Cost Benefit Study
Banana Growers Kevin and Gary Harding have been trialing rock dust from Pin Gin Hill quarry since mid-1985. Using experience gained from these trials they radically altered their fertilizer applications, and in August 1990 planted out a 4 Hectare block using Minplus rock dust as the main fertilizer.
