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FAO 56 Penman-Monteith equation [ edit ] To avoid the inherent complexity of determining stomatal and atmospheric conductance, the Food and Agriculture Organization proposed in 1998 [ 1 ] a simplified equation for the reference evapotranspiration ET 0 .
Crop coefficients are properties of plants used in predicting evapotranspiration (ET). The most basic crop coefficient, K c, is simply the ratio of ET observed for the crop studied over that observed for the well calibrated reference crop under the same conditions.
The Blaney–Criddle equation is a relatively simplistic method for calculating evapotranspiration.When sufficient meteorological data is available the Penman–Monteith equation is usually preferred.
Evapotranspiration is defined as: "The combined processes through which water is transferred to the atmosphere from open water and ice surfaces, bare soil and vegetation that make up the Earth’s surface."
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.
gaez.fao.org /pages /ecocrop-find-plant Ecocrop was a database used to determine the suitability of a crop for a specified environment. [ 1 ] Developed by the Food and Agriculture Organization of the United Nations (FAO) it provided information predicting crop viability in different locations and climatic conditions. [ 2 ]
Statistics are at the core of the work of the Food and Agriculture Organization of the United Nations (FAO), its mandate and strategic goals. Article I of its Constitution states that “The Organization shall collect, analyse, interpret and disseminate information relating to nutrition, food and agriculture. […] the term ‘agriculture ...
Logo of CountrySTAT. CountrySTAT is a Web-based information technology system for food and agriculture statistics at the national and subnational levels. It provides decision-makers access to statistics across thematic areas such as production, prices, trade and consumption.