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...Class xi topic definition of agriculture its branches subject the term is derived from two latin words ager or agri meaning soil and cultura cultus cultivation an applied science which encompasses all aspects crop production including horticulture livestock rearing fisheries forestry etc defined as art business producing crops for economic purposes it embraces knowledge way to perform operations farm in a skillful manner but does not necessarily include understanding principles underlying practices utilizes technologies developed on scientific such breeding techniques protection economics maximize yield profit example new varieties by hybridization transgenic resistant pests diseases hybrids each high fertilizer responsive water management herbicides control weeds use bio agents combat pest long life rural population ultimately bound consumption aims at maximum net return through land labor capital employing various sciences food feed fiber fuel recent years commercialized run mechaniz...