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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.
Yield mapping or yield monitoring is a technique in agriculture of using GPS data to analyze variables such as crop yield and moisture content in a given field. It was developed in the 1990s and uses a combination of GPS technology and physical sensors, such as speedometers , to track crop yields, grain elevator speed, and combine speed.
While individual products are usually measured by weight, which is known as crop yield, varying products make measuring overall agricultural output difficult. Therefore, agricultural productivity is usually measured as the market value of the final output. This productivity can be compared to many different types of inputs such as labour or land.
The farmer's and/or researcher's ability to locate their precise position in a field allows for the creation of maps of the spatial variability of as many variables as can be measured (e.g. crop yield, terrain features/topography, organic matter content, moisture levels, nitrogen levels, pH, EC, Mg, K, and others). [10]
The land equivalent ratio can be used whenever more than one type of yield can be obtained from the same area. This can be intercropping of annual crops (e.g. sorghum and pigeonpea) [1] or combination of annual and perennial crops e.g. in agroforestry systems (e.g. jackfruit and eggplant). [3]
Crop yield, measurement of the amount of a crop harvested, or animal products such as wool, meat or milk produced, per unit area of land Yield (wine), the amount of grapes or wine that is produced per unit surface of vineyard; Ecological yield, the harvestable population growth of an ecosystem, most commonly measured in forestry and fishery
The combine grain yield monitor is a device coupled with other sensors to calculate and record the crop yield or grain yield as a modern-day combine harvester operates. Yield monitors are a part of the precision agriculture products available to producers today that provide producers with the tools to reduce costs, increase yields, and increase efficiency.
It is also used to describe average yields. Normal production would be the normal crop acreage planted multiplied by the normal yield. These measures, once required by commodity programs to calculate benefits, are replaced by base acres, payment acres, and payment yield under the 2002 farm bill (P.L. 101-171, Sec. 1101-1102).