Though methods are equally intensive and farming is done on a subsistence basis, a very wide
range of other crops are raised. In most parts of North China, Manchuria, North Korea, northern
Japan and Punjab, wheat, soya beans, barley or kaoliang (a type of millet) are extensively
grown as major food crops.
In the India Deccan and parts of the Indus basin sorghum or millet is the dominant crop due to
the scarcity of rain and the poorer soils. In many parts of continental South-East Asia such as
the Dry Zone of Myanmar, the Korat Plateau of Thailand and the interior regions of Indo-China,
the annual precipitation is too low for wet padi cultivation, and the substitute crops are millet,
maize and groundnuts grown together with cotton, sugarcane and oil-seeds.
During recent decades, this type of agriculture has registered a significant improvement in the
form of mechanisation, use of improved seeds and fertilisers and other modern systems of agro-
science. The countries like China, India, Japan, Malaysia, Korea, Taiwan, Philippines, etc., have
adopted improved system of agriculture
The intensity of agriculture and multiple cropping are directly governed by the pressure of population in a
given region at a given point of time. In shifting cultivation tracts where the density of population per
square kilometer is generally less than ten persons, the intensity of agriculture is very low.
The land is such areas are sown only once in a year and that too abandoned after one or two years. But in
those parts where density of population is relatively high, at least two crops in a year is .the usual practice
and the same piece of land is sown season after season and generation after generation. Intensive
subsistence agriculture is best developed and practically confined to the monsoon lands of Asia.
It is carried on mainly in China, Japan, India, Bangladesh, Myanmar (Burma), Thailand, Sri Lanka,
Malaysia, Philippines, Indonesia, Laos, Cambodia and the islands of Pacific Ocean, Indian Ocean and
Southeast Asia. These are the most densely populated parts sustaining about two-third population of the
world. In these countries, the density of population is higher than that of the industrial countries of Europe
and America.
The fast growing population, almost unchecked for centuries, necessitates an even greater intensity in the
tillage of land. Farming in both the wet lowlands and the terraced uplands is, therefore, very intensive to
support the dense population of teeming million. There are two types of the intensive subsistence