If you're just a beginner gardener and you're not sure about the nutrient content of the soil, it's best to do a soil test before you add a balanced fertilizer like one with an NPK ratio of 13-13-13.

National Presto Industries Inc (NYSE:NPK) trades with a trailing P/E of 14.4x, which is lower than the industry average of 22.9x. While this makes NPK appear like a great stock to buy, you might ...

Venkatram Vasantavada, President - Crop Nutrition Business, says the move will help rectify NPK ratio. Venkatram Vasantavada, President - Crop Nutrition Business, ...