Scholarly record

EFFECT OF FERTILIZER APPLICATION SYSTEMS ON THE DYNAMICS OF AGROCHEMICAL, AGRO PHYSICAL AND BIOLOGICAL INDICATORS OF SOIL AND WASTE SOIL MEZOFAUNA

Zulfiya Kazhybek

Abstract

Pesticides alter the biological properties of the soil, leading to a complete loss of their fertility. Chestnut soils (meadow brown, light brown) are resistant to contamination by pesticides and by fertilizers in particular. We have carried out studies on the effect of the examined soil pollution with high doses of fertilizers and pesticides on the soil mesofauna representatives. The work is based on studying influence of anthropogenic impacts on soil biological activity in comparison with its main indicators, which allowed to establish the soil fauna correlative connection with major traditional indicators of soil fertility, and significantly enhances their ecological importance in the assessment of agricultural techniques in agricultural production. In Kazakhstan such research has a fragmented character; soil animals and their effects on soil properties have been studied poorly. The reason for the relatively poor knowledge of soil animals is not only the complexity of the conditions for the existence of organisms in the soil, but also the difficulties in the observation and study of the soil fauna due to the opacity and density of habitat. And, despite the importance of soil fauna in the soil-forming process, in Kazakhstan it is still poorly understood, especially in the agrotechnical influences in irrigation and rainfed areas of south-eastern Kazakhstan. Lack of information on the biological activity in this area, the underestimation of the role of soil invertebrates and their value in the formation and reproduction of soil fertility, lack of methods for biodiagnostics and indication of soil identified the relevance and need for systemic research in this direction. The title and direction of research on the effect of different systems of application of fertilizers, pesticides and other agricultural methods on living component of soil environment in the long-term stationary experiments, and, based on them, the development of parameters for monitoring of anthropogenic impacts in the system of modern agriculture in irrigation and rainfed areas of south-eastern Kazakhstan were chosen on the basis of above mentions.

Publication details

Back to publication list