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郵票 主题農業
One of the most fundamental reasons that the World’s population has been able to subsist is the development of agricultural production methods over the centuries. But even today poorer countries struggle to provide foodstuff for their inhabitants while in other parts of the World overproduction exists.
The increased use of technology and science to produce disease-free, faster-growing and even genetically-modified crops and chemical fertilizers has also caused certain problems. Also the use of growth hormones and antibiotics in farmed animals has caused great concern. The growth of organic farming methods over the last thirty years is witness to the fact that many people prefer naturally-produced products.
Today, roughly one third of the World’s workforce is employed in the agriculture sector.
Read More1933, Postage due 11v
1933, Ethnographical congress 21v
1933, Constitutional meeting 5v
1934, Coffee 1v
1934, Definitives 9v, without WM
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1934, Definitives 8v
1934, Definitives 8v imperforated
1935, Definitives 11v
1935, Definitive 1v
1935, Definitives 14v
1935, Tobacco plants 4v
1935, Woman congress 15v
1936, Definitives 13v
1937, Sugar 3v
1937, Trujillo 1v
1937, Kouang-Tcheou, definitives 24v
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