THE ORIENTATION OF BIOLOGICAL NITROGEN TRANSFORMATION PROCESSES IN SOIL UNDER THE ORGANIC PRODUCTION OF AGRICULTURAL PRODUCTS

• Date: 2017
• Main Authors: Volkohon, V. V., Moskalenko, A. M., Dimova, S. B., Zhurba, M. A., Volkohon, K. I., Tokmakova, L. M., Shtanko, N. P., Lutsenko, N. V.
• Format: Article
• Language: English
• Published: Institute of Agrocultural Microbiology and Agro-industrial Manufacture of NAAS of Ukraine 2017
• Subjects: organic agriculture; microbial preparations; nitrogen fixation; N2O emission; potato; barley; pea; wheat.
• Online Access: https://smic.in.ua/index.php/journal/article/view/86
• Journal Title: Agriciltural microbiology

The paper covers the study of direct impact and after-effect of 40 t/ha of cattle manure on theorientation of nitrogen fixation and biological denitrification processes in the root zone of potatoes,spring barley, pea, and winter wheat plants in rotation in a stationary field experiments on leachedblack soil. Application of manure had significantly increased the nitrogen fixation activity, whilepromoting a high level of N2O emission. The use of microbial preparations for pre-seeding bacterization of seeds optimizes the course of biological nitrogen transformation process — through theenhancement of nitrogen fixation activity and reduction of gaseous nitrogen losses (with the exception of Biogran use on potatoes in the year of manure application). Introduction with manure of alarge number of microorganisms to the soil offsets the positive effect of biopreparations use. Yieldrecords and estimation of grain output per hectare within the crop rotation cycle indicates the practicability of combined application of manure and microbial preparations (excluding the year of direct effect of organic fertilizer) in organic agriculture.