Results 121 to 130 of about 22,172 (224)

Historiografía del México independiente

open access: yesHistoria Mexicana El Colegio de México, 1961
-
Robert A. Potash
doaj  

Time of application of potash

open access: yes, 1973
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,
core   +1 more source

A numerical design framework for unloading excavations in deep potash mining. [PDF]

open access: yesSci Rep
Zhang Y   +5 more
europepmc   +1 more source

Potash--Alunite, Utah P.1

open access: yes, 1917
Arthur W. Stevens, donor.

core  

Potassium enrichment mechanism and controlling factors in Cambrian black shale from eastern Guizhou, China. [PDF]

open access: yesSci Rep
Fu J   +9 more
europepmc   +1 more source

CXCL11 levels regulate lung Treg responses to deter the onset of HIV-related COPD. [PDF]

open access: yesRespir Res
Dabo AJ   +8 more
europepmc   +1 more source

Potash--Alunite, Utah P.2

open access: yes, 1917
Arthur W. Stevens, donor.

core  

Potash Mining P.1

open access: yes
Note on back reads, ""Salt Valley anticline-Grand Co., richest potash & mag. Dep. In world -- U.S. Bur. Mines"

core  

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