The state of soil fertility during long-term use of fertilizers in agrocenosis

International Scientific Conference «AGRITECH-2019: Agribusiness, Environmental Engineering and Biotechnologies»

农业科学;生态环境科学;生物科学

Voronkova, N.A.^1^2 ; Balabanova, N.F.^2 ; Yu Tyumentseva, E.^1

Omsk State Technical University, 11 Mira ave., Omsk

644050, Russia^1

FSBSI Omsk ASC, 26 Koroleva street, Omsk, Russia^2

关键词: Agrocenosis;    Correlation dependence;    Crop rotation;    Labile organic matter;    Meadow chernozem;    Mineral fertilizers;    Soil fertility;   

Others  :  https://iopscience.iop.org/article/10.1088/1755-1315/315/5/052064/pdf
DOI  :  10.1088/1755-1315/315/5/052064

来源: IOP

【 摘 要 】

The long-term stationary experiment (1981-2011) on meadow-Chernozem soil has shown that the systematic application of mineral fertilizers and straw, the inclusion of perennial legumes in the crop rotation stabilizes the humus content and increases the supply of labile organic matter in the soil. The humus content in the fertilized variants increased by 0.16-0.30 %, and the content of easily mineralized organic matter by 24-86%. High correlation dependence (r=81) of humus content on mortmass reserves in soil confirms the significant role of labile organic matter in soil fertility preservation.