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In the early 1900s there were few fungicides available to treat the rust, which threatened the American lumber industry. [5] In response to concerns the federal government banned the cultivation, sale and transport of blackcurrants in 1911 and funded a program of eradication by chemical spraying, later often carried out by members of the ...
Since blackcurrant berries are a rich source of the vitamin, and blackcurrant plants are suitable for growing in the UK climate, the British Government encouraged their cultivation and soon the yield of the nation's crop increased significantly. From 1942 onwards, blackcurrant syrup was distributed free of charge to children under the age of two.
Removal of Ribes used to be practiced in full force, which heavily affected blackcurrant production in the United States, however through a combination of the pathogen's hardiness and ability to travel airborne for nine hundred feet, as well as the Ribes ability to regrow from an extremely small root portion, researchers have focused their ...
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Farming was the primary occupation of 72% of the national labor force in 1820, 60% in 1860, 37% in 1900, and 26% in 1920. The 50% level came in 1877. [8] [9] In 1900 29.1 million Americans were gainfully employed, of whom 10.4 million were on farms.
In the 1930s the gasoline powered "combine" combined reaping and threshing into one operation that took one person to operate. Production grew from 85 million bushels in 1839, 500 million in 1880, 600 million in 1900, and peaked at 1.0 billion bushels in 1915.
The Neolithic founder crops (or primary domesticates) are the eight plant species that were domesticated by early Holocene (Pre-Pottery Neolithic A and Pre-Pottery Neolithic B) farming communities in the Fertile Crescent region of southwest Asia, and which formed the basis of systematic agriculture in the Middle East, North Africa, India ...
Records from the Warring States, Qin dynasty, and Han dynasty provide a picture of early Chinese agriculture from the 5th century BC to 2nd century AD which included a nationwide granary system and widespread use of sericulture. An important early Chinese book on agriculture is the Qimin Yaoshu of AD 535, written by Jia Sixie. [88]