He thoroughly drained .
He thoroughly fertilized the land , pioneered the use of steam power and new machinery in Danish agriculture , brought in new breeds of cattle and built a dairy , achieving a five-fold increase in production by 1890 .
He thoroughly drained and fertilized the land , pioneered the use of steam power and new machinery in Danish agriculture , brought in new breeds of cattle and built a dairy , achieving a five-fold increase in production by 1890 .