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The cover of the 1793 edition. The first Old Farmer's Almanac, then known as The Farmer's Almanac, was edited by Robert Bailey Thomas, the publication's founder. [6]There were many competing almanacs in the 18th century, but Thomas's book was a success. [6]
Map of average growing season length from "Geography of Ohio," 1923. A season is a division of the year marked by changes in weather, ecology, and the amount of daylight. The growing season is that portion of the year in which local conditions (i.e. rainfall, temperature, daylight) permit normal plant growth.
Growing degree days (GDD), also called growing degree units (GDUs), are a heuristic tool in phenology.GDD are a measure of heat accumulation used by horticulturists, gardeners, and farmers to predict plant and animal development rates such as the date that a flower will bloom, an insect will emerge from dormancy, or a crop will reach maturity.
The worst time of day to water outdoor plants is in the middle of the afternoon during hot and sunny weather. "During this time, the heat and sun cause water to evaporate quickly, reducing the ...
The first map was issued in 1960, and revised in 1965. It used uniform 10 °F (5.6 °C) ranges, and gradually became widespread among American gardeners. [3] [4] The USDA map was revised and reissued in 1990 with freshly available climate data, this time with five-degree distinctions dividing each zone into new "a" and "b" subdivisions.
Agricultural astrology, a pseudoscience, is often referred to as "planting by the signs" because of its reliance on astrological signs for planting, cultivating and harvesting. [ 1 ] : 11–12 The Old Farmer's Almanac regularly features a "planting by the signs" section.
Plant domestication is seen as the birth of agriculture. However, it is arguably proceeded by a very long history of gardening wild plants. While the 12,000 year-old date is the commonly accepted timeline describing plant domestication, there is now evidence from the Ohalo II hunter-gatherer site showing earlier signs of disturbing the soil and cultivation of pre-domesticated crop species. [8]
The burning of fossil fuels is the main source of the excess greenhouse gases causing climate change, but there are other sources to consider as well.A special report from the Intergovernmental Panel on Climate Change (IPCC) estimated that, in the last 150 years, fossil fuels and cement production have been responsible for only about two-thirds of climate change while the other third has been ...