Bayesian Kinked Regression with Unobserved Thresholds: An Application to the von Liebig Hypothesis

2021 ◽  
Author(s):  
Klaus Moeltner ◽  
A. Ford Ramsey ◽  
Clinton L. Neill
Keyword(s):  
Von Liebig

Centennial Celebration of the Birthday of Justus Von Liebig

1903 ◽  
Vol 55 (1434supp) ◽  
pp. 22983-22983
Author(s):  
Durand Woodman
Keyword(s):  
Centennial Celebration ◽  
Von Liebig

(69286) von Liebig [2.65, 0.21, 11.3]

2007 ◽  
pp. 227-227
Keyword(s):  
Von Liebig

Liebig’s Law and Haber’s Tragedy

Dead Zones ◽  
2021 ◽  
pp. 89-105
Author(s):  
David L. Kirchman
Keyword(s):  
Gulf Of Mexico ◽  
Chesapeake Bay ◽  
19Th Century ◽  
Algal Growth ◽  
Oxygen Depletion ◽  
Nitrogen And Phosphorus ◽  
Limiting Nutrient ◽  
Von Liebig ◽  
The Baltic ◽  
Fritz Haber

The fertilizers commonly used by gardeners have many ingredients, but the biggest two are nitrogen and phosphorus, either of which can limit plant and algal growth. The idea that only one nutrient limits growth is encapsulated by Liebig’s Law of the Minimum, named after Justus von Liebig, a 19th-century German chemist. Liebig is also called the “father of fertilizer” because of his work on formulating and promulgating commercial fertilizers. However, he wasn’t the first to discover the Law, and he was wrong about the most important ingredient of fertilizers. This chapter outlines the arguments among limnologists, oceanographers, and geochemists about whether nitrogen or phosphorus sets the rate of algal growth and thus production of the organic material that drives oxygen depletion. The chapter discusses that the limiting nutrient varies with the type of aquatic habitat. In dead zones like the Gulf of Mexico, parts of the Baltic Sea, and Chesapeake Bay, bioassay experiments have shown that nitrogen is usually limiting. The nitrogen necessary for fertilizer and ammunitions comes from the Haber-Bosch process. The chapter reviews the life of one of the two German inventors, Fritz Haber, and how it was full of contradictions if not tragedy.

Justus Von Liebig and His Influence on Clinical Chemistry

Ambix ◽  
2000 ◽  
Vol 47 (2) ◽  
pp. 96-117 ◽  
Author(s):  
Johannes Büttner
Keyword(s):  
Clinical Chemistry ◽  
Von Liebig
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