Agriculture has relied on the use of natural fertilizers -- substances that increase
the nutrient levels of soil -- for most of human history.
Sep 21, 2008
First used by ancient farmers, fertilizer technology developed significantly as the
chemical needs of growing plants were discovered. Modern
A fertiliser is a soluble compound containing nitrogen, phosphorous or potassium
. Use your data ... Both natural and
It is all chemical-made in a laboratory. Its not like cow manure which is natural.
Fertilizers come from many sources.
Farmers use fertilisers to put back into the soil the nutrients that have been
removed by ... Farmers using intensive methods of agriculture use