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Henry Blair (c. 1807–1860) was the second African American inventor to receive a US patent. [1]He was born in Glen Ross, Maryland, United States, in 1807.His first invention was the Seed-Planter, [2] patented October 14, 1834, which allowed farmers to plant more corn using less labor and in a shorter time.
Planters lay the seeds down in precise manner along rows. Planters vary greatly in size, from 1 row to 54, with the biggest in the world being the 48-row John Deere DB120. Such larger and newer planters comprise multiple modules called row units. [1] The row units are spaced evenly along the planter [1] at intervals that vary widely by crop and ...
John Deere claims that the planter is 30% more productive than their 36 row DB90 planter. [1] To transport such an incredibly wide implement, the DB120 folds into five sections . The planter weighs in at over 20 tons empty and almost 24 tons when loaded with seed. [1] The DB120 had a limited release in 2009 with orders being taken for the 2010 ...
Use of a seed drill can improve the ratio of crop yield (seeds harvested per seed planted) by as much as eight times. The use of seed drill saves time and labor. Some machines for metering out seeds for planting are called planters. The concepts evolved from ancient Chinese practice and later evolved into mechanisms that pick up seeds from a ...
The Three Sisters planting method is featured on the reverse of the 2009 US Sacagawea dollar. [1]Agricultural history in the Americas differed from the Old World in that the Americas lacked large-seeded, easily domesticated grains (such as wheat and barley) and large domesticated animals that could be used for agricultural labor.
Sweet corn, harvested earlier than maize grown for grain, grows to maturity in a period of from 60 to 100 days according to variety. An extended sweet corn harvest, picked at the milk stage, can be arranged either by planting a selection of varieties that ripen earlier and later or by planting different areas at fortnightly intervals. [74]
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