Explanation:

India has more arable area than China: This statement is incorrect. China has more arable land in absolute terms than India.

The proportion of irrigated area is more in India as compared to China: This is correct. A higher proportion of agricultural land in India is irrigated compared to China.

The average productivity per hectare in Indian agriculture is higher than that in China: This statement is incorrect. The agricultural productivity in terms of yield per hectare for many crops is generally higher in China than in India.