Results 121 to 130 of about 22,172 (224)
Historiografía del México independiente
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Robert A. Potash
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Recent research has emphasised that autumn topdressing of pastures with potash is superior on most South-West soils. Spring topdressing proved superior only on deep sandy soils which had very little clay or organic matter.
Department of Agriculture, Western Australia,
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A numerical design framework for unloading excavations in deep potash mining. [PDF]
Zhang Y +5 more
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New Insights into the Thermodynamic Properties and Raman Vibrational Modes of Polyhalite from Density Functional Theory. [PDF]
Cheng H, Chen Y, Zhang S.
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Potassium enrichment mechanism and controlling factors in Cambrian black shale from eastern Guizhou, China. [PDF]
Fu J +9 more
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CXCL11 levels regulate lung Treg responses to deter the onset of HIV-related COPD. [PDF]
Dabo AJ +8 more
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Computer Vision for Autonomous Drill Jumbos: Detecting Non-Drillable Areas of a Mine Face. [PDF]
Rösgen M +3 more
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Note on back reads, ""Salt Valley anticline-Grand Co., richest potash & mag. Dep. In world -- U.S. Bur. Mines"
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