Evgenia Kulikova, Galina VelikanovaPublished in:
Food Policy and Security
– Volume 2, Number 2 (April-June, 2015)

JEL classification: Q19, Q24, R11

Keywords: biological farming system, cultivated area structure, fertilizing, humus contents, nutrient balance, soil fertility, yield of culture


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Abstract:

The changes in the qualitative indicators of soil fertility in Penza region are analyzed. Based on the perennial monitoring data, it is defined that the humus contents has decreased by 0.1% and is 5.7% that is the result of poor households’ work on using organic fertilizers and of the reduction of the land under perennial plants. The actual soil acidity рН(kcl) has increased and is 4.9 mainly due to the unsatisfactory limiting work  (3–5 thousand ha per year) and the treatment of soil by heavy aggregates. In 2013 the negative balance of nourishing substances was formed: their nitrogen deficit was 57.99; phosphorus deficit was 21.86; potassium deficit was 86.68 kg per 1 ha of plowland. Implementation of the biological farming system and new technologies will preserve and increase the soil fertility that is one of the most important tasks for ensuring of the state’s food security.

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