A stratification sampling method has been applied to investigate 384 h
ouseholds in 12 villages of four towns in Yangzhong county. Responses
to a questionnaire show that the average annual energy consumption per
rural household is 298.7 kgce (we use 7000 kcal/kgce), with average e
nergy of 0.59 kgce per day mainly in the form of straw. The average en
ergy consumption depends on income, stalk yield, and number of persons
and of pigs in a family. There is demand for high-quality supplies. (
C) 1997 Elsevier Science Ltd.