Search results
Results from the WOW.Com Content Network
Yields are high because of intensive cultivation, for example, China's cropland area is only 75% of the U.S. total, but China still produces about 30% more crops and livestock than the United States. China hopes to further increase agricultural production through improved plant stocks, fertilizers, and technology.
Also, the yield of the peanut crop itself is increased in rotations through reduced diseases, pests, and weeds. For example, in Texas, peanuts in a three-year rotation with corn yield 50% more than nonrotated peanuts. [29] Adequate levels of phosphorus, potassium, calcium, magnesium, and micronutrients are also necessary for good yields. [29]
The corn earworm moth and bollworm (Helicoverpa zea) is a common and destructive pest of soybean growth in Virginia. [38] 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]
[52] [53] The overall carbon footprint and global warming potential of cellulosic ethanol are considerably lower (see chart) [54] [55] [56] and the net energy output is several times higher than that of corn-based ethanol. The potential raw material is also plentiful. Around 44% of household waste generated worldwide consists of food and greens ...
As of Q4 2017, total household net worth in the United States was a record $99 trillion, an increase of $5.2 trillion from 2016. This increase reflects both stock market and housing price gains. This measure has been setting records since Q4 2012. [213]
Hamilton was the first to use the term "infant industries" and to introduce it to the forefront of economic thinking. He believed that political independence was predicated upon economic independence. Increasing the domestic supply of manufactured goods, particularly war materials, was seen as an issue of national security.
From 2011 to 2021, renewable energy grew from 20% to 28% of global electricity supply. Power from the sun and wind accounted for most of this increase, growing from a combined 2% to 10%. Use of fossil energy shrank from 68% to 62%. [7] In 2022, renewables accounted for 30% of global electricity generation and are projected to reach over 42% by ...
The shift of the returning echoes yields information relating to the motion and location of the bat's prey. These bats must deal with changes in the Doppler shift due to changes in their flight speed. They have adapted to change their pulse emission frequency in relation to their flight speed so echoes still return in the optimal hearing range.