244 results for group: journal-article


In-field carbon dioxide removal via weathering of crushed basalt applied to acidic tropical agricultural soil

Fredrick J. Holden, Kalu Davies, Michael I. Bird, Ruby Hume, Hannah Green, David J. Beerling, Paul N. Nelson ABSTRACT: Enhanced weathering (EW) of silicate rocks such as basalt provides a potential carbon dioxide removal (CDR) technology for combatting climate change. Modelling and mesocosm studies suggest significant CDR via EW but there are few field studies. This study aimed to directly measure in-field CDR via EW of basalt applied to sugarcane on acidic (pH 5.8, 0–0.25 m) Ultisol in tropical northeastern Australia, where weathering potential is high. Coarsely crushed basalt produced as a byproduct of gravel manufacture (<5 mm) was ...

ON THE RESULTS OF STUDIES RELATING TO THE REJUVENATION OF OUR EXHAUSTED SOILS FROM WETLANDS BY INCORPORATING BASALTIC DUST

O. D'HOTMAN DE VILLIERS No abstract   http://remineralize.org/wp-content/uploads/2025/04/1947-DHotman-Sur_des_rCsultats-Revue_Agricole_vol_26.pdf

Soil Rejuvenation with Crushed Basalt in Mauritius: Part 2, The fertility of basalt and its nutritional effects.

O. D’Hotman de Villiers No abstract   http://remineralize.org/wp-content/uploads/2025/04/1962-DHotman-Soil_Rejuvenation_PART_2_Fertility_of_Basalt-International_Sugar_Journal.pdf

SOIL REJUVENATION WITH CRUSHED BASALT IN MAURITIUS: Part 1, Consistent results of world-wide interest.

O. D’Hotman de Villiers No abstract   http://remineralize.org/wp-content/uploads/2025/04/1961-DHotman-Soil_Rejuvenation_PART_1_Consistent_results-International_Sugar_Journal.pdf

On the rejuvenation of tropical Iaterttes by the incorporation of basalt dust

O. D'HOTMAN DE VILLIERS ABSTRACT: 1. The work of N. Craig and P. Halais of the. Reoherches Station as well as our own research on the soils and climates of the island, having amply shown that our soils of the wet regions are in an extreme state of climatic poor, we have the idea of regenerating them by incorporating powdered basalt. 2. This idea that has worried us for several years and which seems to us to be the logical focus of the genetic study of tropical soils, will bring, we are convinced, a happy revolution in soil science under climates where atmospheric agents are the cause of a deep decomposition by hydrolysis and a rapid exhaustion ...

Further results of studies on the rejuvenation of exhausted soils in humid districts by incorporating basalt dust.

O. D’Hotman de Villiers ABSTRACT: Results are republished of the 1938-41 experiments conducted in Mauritius with powdered basalt and heavy NPK fertilizer applications on sugar-cane crops grown in exhausted lateritic soil. With these are compared the results of the 2nd series of experiments (1944-47) on the same plots, in which, after a bare fallow of 23 months, moderate N and minimum P and K applications were combined with 10 metric tons/arpent of powdered basalt. The 1937 basalt dressings had been 10, 30 and 90 metric tons. Results show a striking residual benefit, especially from the highest basalt application, affecting both cane and sugar ...

Fertilizing Value of Crushed Basalt

S. M. Feillafe 23rd Annual Report of the Sugarcane Research Station No abstract   http://remineralize.org/wp-content/uploads/2025/04/1952-Fertilizing_value_of_crushed_basalt-Revue_Agricole_vol_31.pdf

A REVIEW OF ORGANIC AND INORGANIC AMENDMENTS USED IN CANE CULTIVATION IN MAURITIUS: Part C

D. H. Parish, S. M. Feillafe No Abstract http://remineralize.org/wp-content/uploads/2025/04/1958-Parish_and_FeillafC-C.-Basalt-Dust-MSIRI_Annual_Report.pdf

The Use of Ground Rocks in Laterite Systems: An improvement to the use of Conventional Soluble Fertilizers?

Othon H. Leonardos, W. Fyfe, B. Kronberg ABSTRACT: The geochemistry of lateritic terrains is discussed in terms of nutrient demand in agriculture. The data presented show a dramatic depletion of virtually all nutrients when compared to crustal levels and other soil systems. Increasing world demand for food production, particularly in tropical countries where alcohol production is also needed, has forced the agriculture frontier deep into lateritic areas. As cultivation is intensified the laterite becomes more barren and a neutral recipient for the massive doses of nutrients that are to be constantly added if production is to continue. Conventi...

Effect of the addition of granitic powder to an acidic soil from Galicia (NW Spain) in comparison with lime

Benita Silva, Remigio Paradelo, Nuria Vázquez, Eduardo García-Rodeja, María Teresa Barral ABSTRACT: High amounts of granitic powders are produced in the granite industry in Galicia (NW Spain), whose accumulation could pose environmental threats, at least locally. Due to its natural alkalinity, the powder could be used to correct the acidity of soils or mining residues, where it would act at the same time as a source of plant nutrients. A greenhouse experiment was conducted to test the growth of Italian ryegrass on an acid soil amended with different rates of granitic powder (2.5, 5 and 10 %). Soil amended with lime or with lime in combination ...