Results 201 to 210 of about 957,320 (364)
Contribution to the HiStory Series in Plant Nutrition
ABSTRACT After Justus von Liebig had largely recognized the necessity of nitrogen fertilization to achieve high yields from 1862 onwards, the question of why legumes are particularly beneficial for crop rotation remained unanswered. Schultz‐Lupitz (1831–1899), who convincingly proved the preceding crop effect of legumes for cereals as a subsequent crop
Wolfgang Böhm, Alexander H. Wissemeier
wiley +1 more source
Outdoor thermal performance of urban development patterns in Greater Adelaide since the late 19th century. [PDF]
Liu Y+5 more
europepmc +1 more source
Testing the General Validity of the Heckscher-Ohlin Theorem: The Natural Experiment of Japan [PDF]
We exploit Japan’s 19th century move from autarky to free trade to provide the first test of the general validity of the price formulation of the Heckscher-Ohlin theorem.
Daniel M. Bernhofen, John C. Brown
core
A Middle and Late Devensian sequence from the northern part of Kents Cavern (Devon, UK)
Abstract 1920s/30s excavation of a Middle Devensian sequence in the northern part of Kents Cavern recovered important Late Middle and Early Upper Palaeolithic archaeological material, including Britain's oldest known Homo sapiens remains. Questions remain about this material, including how it came to be in the cave.
Rob Dinnis+11 more
wiley +1 more source
ABSTRACT Glacial erratics are geologically distinctive rocks transported away from their source area by ice sheets and deposited in lithologically different bedrock areas. They have attracted much scientific curiosity with >24 000 observations across the British Isles.
R. L. Veness+5 more
wiley +1 more source
Abstract Research Summary Using detailed plant‐ and individual‐level data from a major Japanese cotton spinning company in the early 20th century, we examine the within‐firm allocation of skilled human capital in conjunction with investment in physical capital, accompanying the firm's evolving strategic priorities.
Shotaro Yamaguchi+3 more
wiley +1 more source
The impact of childhood sickness on adult socioeconomic outcomes: evidence from late 19th century America. [PDF]
Warren JR+3 more
europepmc +1 more source
Buffalo Hunt: International Trade and the Virtual Extinction of the North American Bison [PDF]
In the 16th century, North America contained 25-30 million buffalo; by the late 19th century less than 100 remained. While removing the buffalo east of the Mississippi took settlers over 100 years, the remaining 10 to 15 million buffalo on the Great ...
M. Scott Taylor
core
ABSTRACT There is little information about the changes in the abundance of mammalian species in South America during the late Quaternary, which is a key parameter to understanding past ecological and evolutionary dynamics. Here, we describe a conspicuous increase in the abundance of the gray brocket deer (Subulo gouazoubira G.
Alex Hubbe+21 more
wiley +1 more source