Help!..lost in ag science Corn details..?

Question

I need to know what nutrients corn needs and what nutrients help it grow..please give examples and reference if possible....

Answer 1

There are 16 nutrient elements required to grow crops (Table 1). Three essential nutrients—carbon (C),

hydrogen (H), and oxygen (O2)—are taken up from atmospheric carbon dioxide and water. The other 13

nutrients are taken up from the soil and are usually grouped as primary nutrients, secondary nutrients, and

micronutrients.

The primary nutrients—nitrogen (N), phosphorus (P), and potassium (K)—are commonly found in

blended fertilizers such as 10-10-10, or equivalent grades. Primary nutrients are utilized in the largest

amounts by crops, and therefore, are applied at higher rates than secondary nutrients and micronutrients.

The secondary nutrients—calcium (Ca), magnesium (Mg), and sulfur (S)—are required in smaller

amounts than the primary nutrients. The major source for supplementing the soil with calcium and

magnesium is dolomitic lime (aglime), although these nutrients are also available from a variety of fertilizer

sources. Sulfur is available in fertilizers such as potassium and magnesium sulfate, gypsum (calcium sulfate),

and elemental sulfur.

Micronutrients—iron (Fe), manganese (Mn), zinc (Zn), copper (Cu), boron (B), and molybdenum

(Mo)—are required in even smaller amounts than secondary nutrients. They are available in manganese, zinc

and copper sulfates, oxides, oxy-sulfates and chelates, as well as in boric acid and ammonium molybdate.