Spring wheat mineral nutrition:

• The root system is less developed (in comparison with other grain crops).
• Spring wheat is sensitive to acidity level – the best rate рН 6?7,5.
• Very demanding to mineral nutrition:
• Bigger part of nutrients is taken up during the first half of the whole development period (before flowering).
  • 82?90% of nitrogen
  • 82?100% of phosphorus
  • 100 % potassium
• By the time the grain formation period starts nutrients accumulation is practically over and the formation of grain is progressing due to nutrients redistribution.
• During the stage of tillering and initiation of ear primordium spring grain crops need nitrogen more then ever – they take up to 40% of nitrogen consumed during the whole vegetation period.
• Phosphor helps on the root system development, large ear formation, earlier maturing. Shortage of phosphorus causes bad assimilation of nitrogen and potassium.
• Initial growth period is critical with regard to phosphorus and potassium. Shortage of these nutrients reduces crop yield by 20-30%.

Mineral fertilizers application timing:

Application of one-time high dose of nitrogen prior to sowing at the rate of 90 kg/ha in major nutrient equivalent (260 kg/ha of ammonium nitrate or nitrogen sulphare 32?0?0?5) is more effective then split application of nitrogen fertilizers. On acid soils calcium-ammonium nitrates are used.

Фосфор и калий рекомендуется вносить осенью, под зяблевую вспашку в норме  по д.в. It is recommended to apply phosphorus and potassium in fall under winter ploughing at the following rates: Р – 45, К – 60 kg/ha (in major nutrient equivalent).

• Sulphur improves baking characteristics of wheat and increases clay content.
• Copper sulphate is the micronutrient that is recommended as additional nutrition during the stage of tillering and initiation of ear promordia at the amount of 100-200 g/ha. If the soil acidity is over рН 6,0, additional nutrition with manganese is recommended.

Timing and standards for application of mineral fertilizers produced by URALCHEM in order to achieve the planned yield level, kg/ha:

After application of organic fertilizers at the rate of 60t/ha.