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The U.S. Department of Agriculture's Pomological Watercolor Collection is an archive of some 7,500 botanical watercolors created for the USDA between the years 1886 and 1942 by around five dozen artists. [1]
Crop scouting is the process of precisely assessing pest pressure (typically insects) and crop performance to evaluate economic risk from pest infestations and disease, as well as to determine the potential effectiveness of pest and disease control interventions. [1]
Sowing is the process of planting seeds. An area that has had seeds planted in it will be described as a sowed or sown area. When sowing it is important to: Use quality seeds; Maintain proper distance between seeds; Plant at correct depth; Ensure the soil is clean , healthy , and free of pathogens (disease causing microorganisms)
Since the establishment of the Office of Seed and Plant Introduction there has been an office within the USDA with this responsibility, though its name changes periodically. [2] Today, the branch of the USDA responsible for collecting and introducing new plant species is called the National Germplasm Resources Laboratory. [2] [7]
The USDA also refers to it as the Miami Station. [1] The introduction of economically useful plants into the US is a three-step process: (1) explorers find the plants in foreign countries; (2) the plants are sent back to a USDA introduction garden where they are evaluated; (3) successful plants are distributed to farmers and nurserymen.
Beginning with the administration of Secretary of Agriculture Henry A. Wallace, the United States had generally moved to curb overproduction. However, in the early 1970s, under Secretary of Agriculture Earl Butz, farmers were encouraged to "get big or get out" and to plant "hedgerow to hedgerow". Over the course of the 20th century, farms have ...
In 2012 the USDA updated their plant hardiness map based on 1976–2005 weather data, using a longer period of data to smooth out year-to-year weather fluctuations. [7] Two new zones (12 and 13) were added to better define and improve information sharing on tropical and semitropical plants, they also appear on the maps of Hawaii and Puerto Rico.
Alisma subcordatum, the American water plantain, is a perennial aquatic plant in the water-plantain family (Alismataceae). This plant grows to about 3 feet (0.91 meters) in height with lance to oval shaped leaves rising from bulbous corms with fibrous roots. Any leaves that form underwater are weak and quick to rot; they rarely remain on adult ...