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The units by which the yield of a crop is usually measured today are kilograms per hectare or bushels per acre.. Long-term cereal yields in the United Kingdom were some 500 kg/ha in Medieval times, jumping to 2000 kg/ha in the Industrial Revolution, and jumping again to 8000 kg/ha in the Green Revolution. [1]
A high plant population does not necessarily equal a high yield. The recommended seeding rate is 125,000 to 140,000 seeds per acre. [2] The goal is to achieve a final stand of 100,000 plants per acre. [2] Planting the extra seed gives the producer added insurance that each acre will attain a final stand of 100,000 plants.
Heavily mechanized, U.S. agriculture has a high yield relative to other countries. As of 2004: [20] Corn for grain, average of 160.4 bushels harvested per acre (10.07 t/ha) Soybean for beans, average of 42.5 bushels harvested per acre (2.86 t/ha) Wheat, average of 43.2 bushels harvested per acre (2.91 t/ha, was 44.2 bu/ac or 2.97 t/ha in 2003)
The following table shows the vegetable oil yields of common energy crops associated with biodiesel production. Included is growing zone data, relevant to farmers and agricultural scientists. This is unrelated to ethanol production, which relies on starch, sugar and cellulose content instead of oil yields.
Countries by soybean production in 2020. This is a list of countries by soybean production from 2016 to 2022, based on data from the Food and Agriculture Organization Corporate Statistical Database. [1] The total world production for soybeans in 2022 was 348,856,427 metric tonnes, down 6.4% from 372,853,699 tonnes in 2021. [1]
Land equivalent ratio. The FAO defines land equivalent ratio (LER) as: [2]. the ratio of the area under sole cropping to the area under intercropping needed to give equal amounts of yield at the same management level.
Soybeans are consumed by whitetail deer which may damage soybean plants through feeding, trampling and bedding, reducing crop yields by as much as 15%. [39] Groundhogs are also a common pest in soybean fields, living in burrows underground and feeding nearby. One den of groundhogs can consume a tenth to a quarter of an acre of soybeans. [40]
Food production per capita since 1961 Grain silos Rice plantation in Thailand Cambodians planting rice, 2004. Agricultural productivity is measured as the ratio of agricultural outputs to inputs. [1] While individual products are usually measured by weight, which is known as crop yield, varying products make measuring overall agricultural ...