The yields of cereal crop are influenced by a complex interplay of factors which can be broadly categorized into biotic and abiotic factors . Biotic factors include diseases, pests, and weeds, which all can significantly reduce yields if not managed ...

A. Northern Areas, Southern Plains, Coastal BeltB. Coastal Plains, Central Highlands, Desert RegionsC. Northern Mountains, Eastern Plains, Western CoastD. Indus Valley, Coastal Belt, Thar ...