Results 301 to 310 of about 326,396 (337)

Grain Production and Environmental Management in China's Fertilizer Economy

Journal of Environmental Management, 1996
The rapid growth in China's per hectare chemical fertilizer application, from less than 10 kg in 1960 to 331 kg in 1993, has contributed significantly to the growth in grain production, but has also caused many environment problems such as groundwater pollution.
Qingbin Wang, Catherine Halbrendt, Stanley R. Johnson   +2 more
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Grain Riots and the "Moral Economy": Cairo, 1350-1517

Journal of Interdisciplinary History, 1980
Grain Riots and the "Moral Economy": Cairo, I350-I5I7 Social historians have been urging us in recent years to recognize both the historical significance and the intricate nature of grain riots. Rude, studying popular uprisings in eighteenth-century England and France, has depicted grain riots as the typical manifestation of social protest which ...
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The Development of the Eurasian Livestock and Grain Economies

2016
The major agricultural countries of Eurasia (Russia, Ukraine and Kazakhstan) have become increasingly important for world agriculture, mainly as a large grain-exporting region. However, Russia is also a large agricultural and food importer, especially of livestock products.
William M. Liefert, Olga Liefert
openaire   +1 more source

Optimal Grain Carryovers in Open Economies: A Graphical Analysis

American Journal of Agricultural Economics, 1982
AbstractOptimal storage, trade, and borrowing policies for grain are analyzed graphically using dynamic programming. World prices and domestic harvests are assumed to be stochastic. Optimal carryovers are generally increasing in supply and decreasing in world prices, while net imports are decreasing in both supply and world prices.
openaire   +2 more sources

Bioplastics for a circular economy

Nature Reviews Materials, 2022
Jan-Georg Rosenboom, Robert Samuel Langer Jr, Giovanni Traverso   +2 more
exaly  

New frontiers in enzyme immobilisation: robust biocatalysts for a circular bio-based economy

Chemical Society Reviews, 2021
Roger Arthur Sheldon, Dean Brady
exaly  

China’s Grain Economy

2019
Liming Wang, John Davis
openaire   +1 more source

Chemical recycling to monomer for an ideal, circular polymer economy

Nature Reviews Materials, 2020
Geoffrey W Coates, Yutan D Y L Getzler
exaly  

Plasma pyrolysis for a sustainable hydrogen economy

Nature Reviews Materials, 2022
Xin Tu, Anke Weidenkaff
exaly  

Research and development priorities for silicon photovoltaic module recycling to support a circular economy

Nature Energy, 2020
Garvin A Heath, Timothy J Silverman, Michael Kempe   +2 more
exaly