Yield calculation. Yield is calculated by multiplying 2,450 by the multipliers from the charts above. For example in a sunflower field with a stand of 21,000 plants per acre, a head size of 7 inches, a medium seed size with good seed count of 91 percent, and no seed in the center one inch, you would do the following.he sunflower yield for oil sunflower can be calculated by the number of plants per acre, the head diameter, the seed size, the number of filled seeds per head, and observing how much of the center of the head is filled. The yield is calculated by multiplying 2,450 by the âmultipliersâ from the charts below.
A Black market is a sector of the economy where transactions occur without the knowledge of the government and usually involve the breaking of certain laws such as filing proper tax returns. A black market can also refer to the selling of a particular good.
A black market salesman depicted in graffiti in Kharkov, Ukraine (2008). A black market or underground economy is a market in which goods or services are traded illegally. The key distinction of a black market trade is that the transaction itself is illegal.The goods or services themselves may or may not be illegal to own, or to trade through other, legal channels.he black market is considered a subset of the informal economy, of which 1.8 billion people worldwide are employed or which makes up 15-17% of world GDP (averages over 1999-2007, weighted by total GDP in 2005).