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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. It is the sum of the fractions of the intercropped yields divided by the sole-crop yields.
In agriculture, the yield is a measurement of the amount of a crop grown, or product such as wool, meat or milk produced, per unit area of land. The seed ratio is another way of calculating yields. Cereal yield in tons per hectare and kilograms of nitrogenous fertilizer applied per hectare of cropland.
Base-cation saturation ratio (BCSR) is a method of interpreting soil test results that is widely used in sustainable agriculture, supported by the National Sustainable Agriculture Information Service (ATTRA) [1] and claimed to be successfully in use on over a million acres (4,000 km 2) of farmland worldwide.
While we knew that FarmVille 2 was in development at Zynga, any major details about the game were kept under wraps until today's sudden launch. Now that we've had a chance to dive into our new 3D ...
Slash-and-burn agriculture is a farming method that involves the cutting and burning of plants in a forest or woodland to create a field called a swidden. The method begins by cutting down the trees and woody plants in an area. The downed vegetation, or "slash", is then left to dry, usually right before the rainiest part of the year.
Use of a fertilizer with too high of a salt index. This will cause a buildup of salt and nutrients in the soil and thus a fertilizer burn from low osmotic pressure. Use of a fertilizer of the correct salt index but too little water. This will cause a fertilizer burn by starving the plant from water. [1] Use of a fertilizer that contains too ...
In climate engineering, the residue-to-product ratio (RPR) is used to calculate how much unused crop residue might be left after harvesting a particular crop. Also called the residue yield or straw/grain ratio, the equation takes the mass of residue divided by the mass of crop produced, and the result is dimensionless. [1]
The burn rate of a company is a measure of its negative cash flow in a set period of time, typically a month. Investors, especially venture capitalists, monitor this metric closely to gauge when ...