A soil's name often matches its colour. For example, chernozems are almost black. Chernozems formed in steppes where there are many herbaceous plants. The aboveground parts of these plants die off every year, and their residues are turned into humus by insects, worms and soil bacteria. This soil contains the largest amount of humus and forms a layer up to 150 cm thick. Gray forest soils formed where forests used to be. They contain less humus, so they are lighter in colour. Their fertile layer reaches 100 cm.
Ukraine's greatest wealth is chernozems. It is these soils that provide high yields of agricultural crops, the most important of which are cereals: wheat, rye and others. Chernozems and gray forest soils consist of small lumps, so they let water and air through well, creating favorable conditions for plant development.
These soil types are the most widespread in Ukraine. For soil fertility not to decline, the substances removed by plants must be applied. For this purpose fertilizers are added to the soil. The universal multi-component microfertilizers are considered to be the products Fertimicro and Fertimicro Mg.
Fertimicro is a balanced product with microelements chelated with gluconic acid, EDTA and DTPA. These chelating agents protect microelements from chemical interaction with other components. It can be used on soils with different pH (from 4 to 9). It can be used in hydroponics and by foliar application. The application rate is 100–300 ml / 100 l of water.
Fertimicro Mg is a balanced product that corrects magnesium shortage and that of other important microelements. Thanks to microelements in chelate form, it can be used over a wide pH range (from 3.5 to 9), for pre-sowing seed treatment, foliar feeding and drip irrigation systems (fertigation) in open and protected ground. The application rate is 150–300 ml / 100 l of water.