He formulated theories for the application of commercial fertilizer on farms.

Just use commercial foliar fertilizer in spring and summer, when they are in active growth.

Agriculture was increased through use of commercial fertilizers and modern farming equipment.

Conservative estimates report 30 to 50% of crop yields are attributed to natural or synthetic commercial fertilizer.

The annual bill for commercial fertilizer has dropped from $54,000 in 1985 to $4,000 last year, because of reduced runoff.

Put just the right amount of commercial fertilizer in the soil.

It's better than all the commercial fertilizer you can buy.

The recovered products are recycled and sold as environmentally safe commercial fertilizer.

Nor is it enough that something will be done on cadmium in commercial fertilizers.

I do not think that we need further proof of what cadmium in commercial fertilizers does to nature.