Good Farming Was More Advanced A Hundred Years Ago

Gene Logsdon, Dave Smith, Organic To Be

Working from the premise that we will eventually run out of plentiful supplies of manufactured fertilizers, I have been reading old farming books written before artificial fertilizers became easily available. I am amazed at the sophistication with which science approached the subject of soil fertility once it become evident in the mid-1800s that farmers were rapidly depleting the native richness of their soils and had to find ways to restore it using livestock manure and green manure crops.