Any mineral ion concentration in tissues that reduces the dry weight of tissues by $10$ percent is considered toxic.

What is the optimal soil $pH$ for plant growth?

Those fertilizers,which provide all the essential elements such as $N, P$ and $K$ etc. required for plant growth,are called

Crop plants need various fertilizers for their growth. Their yield is limited by that fertilizer which is present in relatively minimum. The principle contained in this statement was enunciated by

In hydroponics,a chelating agent is used to

In addition to known essential elements,there are some beneficial elements. These are required by the