ABSTRACT
Three key elements feed the world, seed, soil and water. Excluding water of the oceans which of course produce seafood, these three exist in almost every nation, but of variable quantity and quality. Some of it being readily accessible and in use as our current agriculture, some usable with modifi cations (irrigation under low rainfall, reclamation from desert, jungle, swampland or the sea), some regions adapted to forage grassland, tree crops or timber forest (on stony soils, hill and high country, also acutely acid or alkaline soils). This leaves a substantial percentage not economically usable under present knowledge (being mountains above the snowline, icelands inside the arctics and rockland from small islands to The Grand Canyon and from the Fiords of New Zealand to the Fiords of Norway). Sensibly, mankind has farmed the best fi rst, being the easiest and fastest to produce food and earn a profi t from. To develop more diffi cult land, Governments must initiate and lead the way.
