What is intensive subsistence agriculture? What are its types?

Explanation

Intensive subsistance agriculture is practised in the poorer regions of the world, where farmers grow crops for family consumption. Very little is left as surplus for market. There are two type of
(i) Intensive subsistence agriculture domainated by wet paddy cultivation -It is characterised by dominance of the rice crop. Land holdings are very small due to the high density of popultion. Farmers work with the help of family labour leading to intensive use fo land. Use of machinery is limited and most of the agricultureal operations are done by manual labour. Farm yard manure is used to maintain the fertility of the soil. In this type of agriculature, the yield per unit area is high but per labour productivity is low.
(ii) Intensive subsidence agriculture dominated by crops other than paddy : Due to the difference in relief, climate, soil and some of the other geographical factors, it is not practical to grow paddy in many parts of moonsoon Asia. Wheat, soyabean, barley and sorghumm are grown in northern China, Manchuria, North Korea and North Jepan. In India wheat is grown in western parts of the Indo-Gangetic plains and milleta are grown in dry parts of western and southern India. Most of the characteristics of this type of agriculture are similar to those dominated by wet paddy except that irrigation is often used.