Greenhouse Production

4R nutrient stewardship provides a framework to achieve cropping system goals, such as increased production, increased farmer profitability, enhanced environmental protection and improved sustainability.

To achieve those goals, the 4R concept incorporates the:

• Right fertilizer source at the

• Right rate, at the

• Right time and in the

• Right place

- See more at: http://www.nutrientstewardship.com/4rs