ZENFERT NS 13-29
The fertiliser is intended for basic fertilisation of most agricultural crops. The use of this fertiliser is optimal in pre - sowing soil preparation when preparing the seedbed, fertilising under the heel or during the growing season. In addition to the main nutrients nitrogen and sulphur, the fertiliser contains calcium in a water - soluble form. The contained zeolites, unique natural materials, positively influence the mechanical and physical parameters of the soil and increase the efficiency of nutrient uptake throughout the growing season. High fertiliser efficiency can be expected on alkaline and neutral soils. Zeolite has a positive effect on the physical - chemical properties of soils, especially after its prolonged and repeated use.
Chemical and physical properties
Feature | Value |
Total nitrogen as N in wt % | 13 |
Nitrate nitrogen as N in wt % | 2.5 |
Ammonium nitrogen as N in wt % | 10.5 |
Calcium water - soluble as CaO in wt % | 4.5 |
Total sulphur as S in wt % | 11.5 |
Total sulphur as SO3 in wt % | 29 |
Particles 2 - 6.3 mm in wt % | min. 90 |
Particles below 1 mm in wt % | max. 3 |
Particles over 10 mm in wt % | 0 |
Scope and method of use
The mineral zeolite remains in the soil after the fertiliser is applied, where it:
– binds water and gradually releases it for plants needs, thus improving water management in all areas during periods of uneven rainfall;
- becomes a component of the soil sorption complex, and thus increases the sorption capacity of soils (especially the light soils);
- increases the utilisation of phosphorus and sulphur from soil and applied fertilisers;
- binds risk elements (Cd, Pb, Cr, etc.), thereby limiting their uptake by plants, especially in conditions of increased mobility of risk elements (e.g. in acid soils);
– binds ammonium nitrogen and slows down its conversion by nitrification process. The fertiliser is therefore also suitable for autumn fertilisation, as it reduces nitrogen losses to the atmosphere and groundwater.
Application doses
Culture | Dose in kg/ha |
Winter cereals (winter wheat) | 250 – 400 |
Spring cereals (spring barley) | 300 - 400 |
Oilseeds (winter rape, sunflower, poppy) | 250 – 400 |
Corn | 700 |
Potatoes for consumption and industrial use | 250 – 400 |
Sugar beet | 250 –300 |
Vineyards, fruit cultures | 250 – 350 |
Hops (once after hop cutting) | 600 |
Packaging, transport, and storage
Fertiliser intended for direct consumption shall be stored in bulk in piles up to a maximum height of 6 m, spaced at least 1 m apart, or in separate boxes. Both stockpiles and boxes must be labelled with the name of the fertiliser. It is recommended to permanently cover the fertiliser for long-term storage with a tarpaulin or store it packaged. Fertiliser packed in big bags is stored stacked up to a maximum of 2 big bags. When fertiliser bags are stored on pallets, the pallets can be stored in a maximum of two layers. Fertiliser must be stored on a floor with an impermeable surface. It must be protected from direct sunlight and radiant heat, otherwise the granules are destroyed and the fertiliser hardens. It is stored separately from other fertilisers and it must be protected against contamination. The storage area must be protected against moisture penetration.