8. Name the two fertilizers containing nitrogen and other containing phosphorous.

Fertilizers containing nitrogen:

1. Urea: This is the most common nitrogen fertilizer and it contains about 46% nitrogen. It is a solid fertilizer that is usually applied in granular form.

2. Ammonium nitrate: This fertilizer contains about 34% nitrogen, half in the nitrate form and half in the ammonium form. It is a highly effective source of nitrogen for plants.

Fertilizers containing phosphorous:

1. Diammonium phosphate (DAP): This is the most widely used phosphorus fertilizer. It’s made from two common constituents in the fertilizer industry, and its relatively high nutrient content and excellent physical properties make it a popular choice in farming and other industries.

2. Monoammonium phosphate (MAP): This fertilizer contains less ammonium nitrogen than DAP, but more phosphorous, making it a good choice for soils that require higher phosphorous levels.