Development of fertilization schemes of barley largely depends on residual action of fertilizers that were introduced for its predecessors. In the case of barley sowing after well-fertilized row crops, additional fertilizing may not be needed. However, in all other cases, the correct and timely fertilization is one of the key factors in the formation of rich harvest.
Barley has the ability to respond well to fertilizers and increase the yield weight up to 20 h/ha. But the main cause of crop losses of this culture is the lodging of crops. To prevent this introduce a correct ratio of essential nutrients – potassium, nitrogen and phosphorus.
Fertilization with phosphorus positive effect on bushiness of plants, prevents lodging, promotes rapid ripening of grain and improves its quality. The introduction rate varies from 40 kg/ha to 100 kg/ha of active ingredient. Potash fertilizers affect the completeness of barley grains, increase resistance to disease development, prevent the lodging of crops and increase resistance to drought. The recommended rate of fertilizer – 55-120 kg/ha. Adequate nitrogen supply promotes strong root system of barley, affects its bushiness and productivity in general. The rate of this fertilizer is calculated individually for different climatic zones.
Phosphorus-potassium fertilizers are introduced during the autumn tillage, nitrogen – during cultivation before the sowing of barley. During the sowing is recommended the introduction of superphosphate directly into the rows. Growing of brewing barley varieties requires more potassium-phosphorus fertilizers and reduced proportion of nitrogen. For the feed barley varieties would be appropriate to increase the dose of nitrogen to 90 kg/ha – it will significantly increase the yield and increase the protein content in a ready grain.
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