3BS applies cow manure to his corn and then runs a mechanical harvester through it.
Some of the nitrogen in the manure volitalizes and some of it is taken up by the corn. We analyze the manure for total nitrogen available and analyze the corn similarly.
Th nitrogen in the corn divided by the nitrogen in the manure is the nitrogen use efficiency. The volatilized nitrogen is part the denomonator even thought it can be used later.
The corn harvester has a blower to separate grain from chaff. But some of the corn is blown out the back. The total corn available divided by the corn harvested is the harvest efficiency. The wasted corn on the ground is part of the denominator even though it could be picked up and used later.
The power company puts up a windmill. But Gabriel, the hell better aeroengineer, says that they can't divide the energy harvested by the total energy available to get an efficiency rating on how well the blades pull energy from the air and evaluate if adding additional blades would be worthwhile. You can't include the the unharvested energy because it can be used later.
Some of the nitrogen in the manure volitalizes and some of it is taken up by the corn. We analyze the manure for total nitrogen available and analyze the corn similarly.
Th nitrogen in the corn divided by the nitrogen in the manure is the nitrogen use efficiency. The volatilized nitrogen is part the denomonator even thought it can be used later.
The corn harvester has a blower to separate grain from chaff. But some of the corn is blown out the back. The total corn available divided by the corn harvested is the harvest efficiency. The wasted corn on the ground is part of the denominator even though it could be picked up and used later.
The power company puts up a windmill. But Gabriel, the hell better aeroengineer, says that they can't divide the energy harvested by the total energy available to get an efficiency rating on how well the blades pull energy from the air and evaluate if adding additional blades would be worthwhile. You can't include the the unharvested energy because it can be used later.
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