K-feldspar sand-grain provenance in the Triassic, west of Shetland : distinguishing first-cycle and recycled sediment sources? [PDF]
, 2009 Sandstone provenance studies can help constrain palaeogeographic reconstructions and ancient drainage system scales and pathways. However, these insights can be obscured by difficulties in geochemically distinguishing or adequately characterising ...
Daly, J. Stephen +9 more
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The Possibility of using Feldspar as Alernative Potassium for Cotton Fertilization Combined with Silicate Dissolving Bacteria, Humic Acids and Farmyard Manure and its Effect on Soil Properties [PDF]
Journal of Soil Sciences and Agricultural Engineering, 2017 Two field experiments were preformed at the Experimental Farm of Sids Agricultural Reseasrch Station, ARC, Beni-Suef Governorate, Egypt to study the possibility of using feldspar as potassium source along with some bio-stimulants namely, silicate ...
S. Abd El-Gayed, M. Sarhan
doaj +1 more source
EFFECT OF K-FELDSPAR ROCK FERTILIZER ON GROWTH AND MINERAL CONTENT OF MORINGA SEEDLINGS (MORINGA OLEIFERA) [PDF]
Scientific Journal of Flowers and Ornamental Plants, 2014 A field experiment was conducted at the Botanical Gardens Research Department Land, Hort. Res. Inst. Alex., Egypt,during 2011-2012 and 2012-2013 seasons to study the effect of Kfeldspar rock fertilizer on growth and mineral content of Moringa seedlings ...
A Abou-Amer, H. El-Tayeb
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Weathering microenvironments on feldspar surfaces: implications for understanding fluid-mineral reactions in soils [PDF]
, 2008 The mechanisms by which coatings develop on weathered grain surfaces, and their potential impact on rates of fluid-mineral interaction, have been investigated by examining feldspars from a 1.1 ky old soil in the Glen Feshie chronosequence, Scottish ...
Smith, C.L. +13 more
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K-feldspar Sand Grain Rounding in Eolian and Subaqueous Transportation [PDF]
, 2023 This project’s aim is to compare the rounding of K-feldspar grains in eolian and subaqueous conditions. It was hypothesized that K-feldspar grains in a subaqueous environment are cushioned enough by surrounding water to prevent the rounding observed in ...
Henze, Emma, Sultan, Elizabeth G
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On the relationship between K concentration, grain size and dose in feldspar [PDF]
, 2018 Previous work has been unable to establish a relationship between K concentration and De in single-grains of feldspar. Here we use four well-bleached sediments with low external dose rate (typically =1.5 Gy ka-1) to investigate this relationship.
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Bleaching of the post-IR IRSL signal from individual grains of K-feldspar: Implications for single-grain dating [PDF]
, 2015 Post-IR IRSL (pIRIR) signals from K-feldspar grains measured at elevated temperatures are increasingly being used for dating sediments. Unfortunately the pIRIR signal from K-feldspars bleaches more slowly than other signals (e.g.
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Characterization of potassium solubilizing bacteria isolated from corn rhizoplane
Agronomía Colombiana, 2021 Potassium is one of the most important elements in plant growth and development. Most of the potassium reserves on Earth are in insoluble mineral form, which represents a limitation for the absorption of this nutrient by plants.
Reneé Pérez-Pérez +5 more
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EFFECT OF ORGANIC MANURES AND FELDSPAR APPLICATION ON SOME SANDY SOIL PHYSICAL AND CHEMICAL PROPERTIES AND THEIR REFLECTION ON PEANUT PRODUCTIVITY. [PDF]
Journal of Agricultural Chemistry and Biotechnology, 2006 Two field experiments were carried out for two successive seasons of 2004 - 2005 at lsmaiiiia Agric. Res. Station (Agric, Res. Center) to study the effect of organic manure (rice straw compost and chicken manure) application both individually andior both ...
Wafaa Seddik
doaj +1 more source
Rubidium-rich feldspars and associated minerals from the Luolamäki pegmatite, Somero, Finland [PDF]
Bulletin of the Geological Society of Finland, 1998 Rubidium feldspar occurs near the core zone of the highly fractionated petalite-subtype Luolamäki granitic pegmatite in intimate intergrowth with other feldspars which are part of a characteristic sequence of alteration of pollucite.
D.K. Teertstra +2 more
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