When pepper plant leaves turn yellow it's called chlorosis. The leaves aren't able to efficiently make chlorophyll - the substance that keeps them a uniform green color. The purpose of leaves is to ...

How does the average gardener tell by looking at a plant if it has a nutrient deficiency or a disease? The main three nutrients used in large amounts by our plants are N-P-K. N being nitrogen, P being ...

"We studied a large number of wheat and barley genotypes under different nitrogen supply conditions and analyzed their root architecture and nitrogen accumulation in the plants," says lead author Md.

Healthy plant growth and reproduction require 17 nutrients. Of these, carbon (C), oxygen (O), and hydrogen (H) are derived mainly from the atmosphere and water. Soil minerals and/or soil organic ...