allows farmers to maximize yields using minimal resources such as water, fertilizer, and seeds. By deploying sensors and mapping fields, farmers can begin to understand their crops at a micro scale, conserve resources, and reduce impacts on the environment. A number of sensing techno-logies are used in precision agriculture, providing data that helps farmers monitor and optimize crops, as well as adapt to changing environmen-tal factors including
is the accumulation and storage of rainwater for reuse on-site, rather than allowing it to run off. Rainwater can be collected from rivers or roofs and redirected to a pit or a tank. Rainwater harvesting is one of the simplest and oldest me-thods of self-supply of water for irrigating crops.
is derived from natural processes that are re-plenished constantly. In its various forms, it de-rives directly from the sun, or from heat gene-rated deep within the earth. Included in the definition is electricity and heat generated from solar, wind, ocean, hydropower, biomass, geo-thermal resources, and biofuels and hydrogen derived from renewable resources.
an organic agricultural system that fo- cuses on achieving maximum yields from a minimum area of land, while simulta-neously increasing biodiversity and sus- taining the fertility of the soil. The goal of the method is longterm sustainability on a closed system basis. It is particularly effective for backyard gardeners and smallholder farmers in developing coun- tries, and also has been used successfully on small-scale commercial farms.