Maize fertilization


The time has come to plan the fertilization of corn, although it seems to us that we still have a lot of time to sow, but we need to develop the basics today.

Corn is a grain, but its nutritional requirements for the site are large, which results from the size of the biomass produced. It should be noted that grain yield over 8 tons per hectare is possible provided that the plants are provided with the necessary macro-elements such as nitrogen, potassium, phosphorus, magnesium and also calcium.

Grain yield (t · ha-1)Total demand (kg · ha-1)
NP2O5K2OMgOSCaO
6120-19248-60132-19224-3618-2424-30
8160-25664-80176-25632-4824-3232-40
10200-32080-100220-32040-6030-4040-50

[Incorporated Physiology. Cereals and corn. Witold Grzebisz Poznań 2012]

While expecting such high grain yields, one should also remember about the proper nutrition of plants with micronutrients.

Grain yield (t · ha-1)Average micronutrient uptake
by maize (g · ha-1)
FeZnBCuMnMb
61350300120702206
10225050020011535010

[Incorporated Physiology. Cereals and corn. Witold Grzebisz Poznań 2012]

In order to properly adjust the fertilizer dosage, we need to know the richness of the planned position for cultivating maize in nutrients by performing soil testing at the District Chemical-Agricultural Station. The analysis costs about PLN 12 (four hectares) and lasts about three weeks. Soil testing determines the content of macroelements such as: nitrogen, phosphorus, potassium and magnesium, as well as the key value of soil fertility – pH – that is, the acidity of the site.

The key to successful cultivation is knowing what pH is the best for a given plant, maize prefers a pH of 6.5-7.0. The proper soil pH definitely affects the greater availability of all macronutrients and is a key factor for the correct growth and development of maize plants. It also determines the proper functioning of the soil, as the proper supply of soil with calcium affects its proper structure, increases the microbiological activity and absorption of nutrients (eg the availability of phosphorus in a slightly acidic and neutral reaction). The performed soil analysis will allow you to reliably plan the fertilization with maize lime.

The new product intended for the fertilization of maize with calcium is MikroCalc – a Mikroflor product available from Chemirol.

Ternary fertilizer MikroCalc providing calcium to the soil affects the better uptake of the remaining macroelements and very good nutrition of plants with calcium, using MikroCalc we introduce into the soil also humic acids and bacteria Bacillus subtilis and Bacillus megaterium positively affecting soil fertility, and above all the rate of digestion of crop residues and what hence the greater availability of nutrients.