Question

what are the physiographic requirement of wheat crop​

Answer 1

Latest concept of agro-climatic zoning or agroecologcal zoning may be implemented to decide the suitable crops. The concept agroecological regions and subregions include : bioclimate as a function of rainfall, temperature , vegetation and potential evapotranspiration ; length of growing period as a function of rainfall, potential evapotranspiration and soil storage and soil scape as a function of soils and physiography. Coupled with crop specific suitability criteria for soil and crop will further let you develop the whole concept of decision support on type of crops suitable or not in a given soil and climate.

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