The influence of agro-climatic factors on the effectiveness of humic, organo-mineral fertilizers and the yield of spring barley

Spring barley is one of the strategically important grain crops, characterized by high plasticity, early ripening and a wide range of economic applications. The area of spring barley cultivation in Kazakhstan is more than 2 million hectares. The selection and study of the effect of humic fertilizers on the growth and development of spring barley in Bogara conditions is an urgent research task. According to our field and laboratory studies, the use of humic fertilizers has a beneficial effect on the growth and development of spring barley in light gray soils with low availability of humus and mobile macronutrients. Humates activate the microbiota, stabilize soil moisture and increase nutrient absorption. In conditions of drought during the earing and grain filling period, due to a sharp increase in the average daily temperature and a decrease in soil moisture, the effectiveness of humic fertilizers decreases. Humic fertilizers can remain effective under the condition of growing drought-resistant varieties of spring barley with a short growing season (75-80 days) in combination with leaf fertilizers with humates and adapted agricultural techniques, taking into account the long-term agrometeorological forecast. 

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