Wood cultivation part:
1 and the mushroom cultivated by Duanmu have high quality and high input-output ratio, which can reach 1 7 10, but they need a lot of wood and are only suitable for development in forest areas.
Alternative cultivation:
1, the input-output ratio of substitute tillage is only 1 2, which is relatively low, but the production cycle of substitute tillage is short and the biological efficiency is high; It can also be widely developed in urban and rural areas by using various agricultural wastes. The one-time investment of alternative cultivation is large and the cost is high.