An introduction to herbicides.
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Autores
Ware, George W.,
Agricultural Research and Advisory Bureau.
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Selangor (Malaysia) : [Publisher not identified],
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Herbicides, or chemical weed killers, have largely replaced mechanical methods of leed control in countries where intensive and highly mechanized agriculture is practiced. Herbicides provide a more effective and economical means of weed control than cultivation, hoeing, and hand pulling. Together with fertilizers, other pesticides, and improved plant varieties, they have made an important contribution to the increased yields we now have and serve to combat rising costs and shortages of agricultural labor. The heavy use of herbicides is confined to North America, western Europe, Japan, and Australia. Without the use of herbicides, it would have been impossible to mechanize fully the production of cotton, soybeans, sugar beets, all grains, potatoes, and corn. In Asia, herbicides are used extensively in plantation crop cultivation - oil palm, rubber, cocoa, coffee etc.
7 referencias.
Herbicides, or chemical weed killers, have largely replaced mechanical methods of leed control in countries where intensive and highly mechanized agriculture is practiced. Herbicides provide a more effective and economical means of weed control than cultivation, hoeing, and hand pulling. Together with fertilizers, other pesticides, and improved plant varieties, they have made an important contribution to the increased yields we now have and serve to combat rising costs and shortages of agricultural labor. The heavy use of herbicides is confined to North America, western Europe, Japan, and Australia. Without the use of herbicides, it would have been impossible to mechanize fully the production of cotton, soybeans, sugar beets, all grains, potatoes, and corn. In Asia, herbicides are used extensively in plantation crop cultivation - oil palm, rubber, cocoa, coffee etc.
7 referencias.
Herbicides, or chemical weed killers, have largely replaced mechanical methods of leed control in countries where intensive and highly mechanized agriculture is practiced. Herbicides provide a more effective and economical means of weed control than cultivation, hoeing, and hand pulling. Together with fertilizers, other pesticides, and improved plant varieties, they have made an important contribution to the increased yields we now have and serve to combat rising costs and shortages of agricultural labor. The heavy use of herbicides is confined to North America, western Europe, Japan, and Australia. Without the use of herbicides, it would have been impossible to mechanize fully the production of cotton, soybeans, sugar beets, all grains, potatoes, and corn. In Asia, herbicides are used extensively in plantation crop cultivation - oil palm, rubber, cocoa, coffee etc.
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