Intensive subsistence agriculture is practised in the densely populated monsoon regions of South Asia (India, Bangladesh, Sri Lanka), Southeast Asia (Vietnam, Thailand, Philippines, Indonesia) and East Asia (China, Japan, Korea).

Because of very high man-land ratios, holdings are small and fragmented; farmers use large amounts of family labour, manure and simple implements to raise output per hectare and grow two or more crops a year (multiple cropping) on the same field, chiefly rice supplemented by wheat, pulses and vegetables.

Large mechanised farms with extensive grazing describe commercial extensive farming (e.g. USA, Canada); vast export-oriented estates with hired labour describe plantation agriculture (e.g. tea, rubber); and shifting cultivation with long fallows (jhum, milpa) is the opposite of intensive practice.

Hence, the answer is small farms with intensive labour and multiple cropping.