Max Armstrong looks at the sources for fertilizer farmers use to raise key crops. Only a few countries in the world have the right access to natural gas to produce nitrogen. He shares a look at those key sources. Max shares that fertilizer varies based on crop and soil, but is 36% of the cost for corn and 35% for wheat. The price of fertilizer has hit all-time highs after Russia invaded Ukraine which has hit a toug supply situation.

Max Armstrong's Farm Progress America is a daily look at key issues in agriculture. It is produced and presented by Max Armstrong, veteran farm broadcaster and host of This Week in Agribusiness.

Photo: Farm Progress