where does the bulk of sugar beets mass come from
Sugar beet In 2013, Russia, France, the United States, Germany, and Turkey were the world's five largest sugar beet producers.[3] In 2010–2011, North America and Europe did not produce enough sugar from sugar beets to meet overall demand for sugar and were all net importers of sugar.[4] The US harvested 1,004,600 acres (406,547 ha) of sugar beets in 2008.[5] In 2009, sugar beets accounted for 20% of the world's sugar production.[6]
Forage (honey bee) As a rule of thumb the foraging area around a beehive extends for two miles (3 km), although bees have been observed foraging twice and three times this distance from the hive. Experiments have shown that beehives within 4 miles of a food source will gain weight, but beyond that the energy expended is greater than that gained during the foraging flight.[1] Foraging at extreme distances wears out the wings of individual bees, reduces the life expectancy of foraging bees and therefore the efficiency of the colony. The minimum temperature for active honeybee foraging is approximately 55 °F (13 °C). Full foraging activity is not achieved until the temperature rises to 66 °F (19 °C). There are small differences in the races of the Western honey bees at what temperature they will start foraging.