Evaluation of Soil Drainage Methods for the Productivity of Waterlogged Vertisols in Jama District, Eastern Amhara Region, Ethiopia

Table 5

Land proportion used for growing crops and making furrows for different soil drainage methods.

Treatments	Harvestable experimental area (m^2)	Productive area (crops growing on) (m^2)	Lost area (occupied by furrow) (m^2)	Lost area (nonproducing area) (%)
BBF120	44	36	8	18.2
BBF80	44	32	12	27.3
BBF40	44	24	20	45.5