Soil fatigue may be defined as exhaustion of the soil through depletion of essential plant nutrients. Another situation, which might be termed false exhaustion, arises when the cause of the poor crop is the presence of injurious excretions from former crops. Solving the problem requires determining the causes of soil fatigue and establishment of soil quality indicators – in which a special role belongs to the community of microorganisms. The chapter discusses the assessment of the number of different microorganisms under various soil moisture conditions. To enhance soil quality and reduce the impact of root-zone fatigue caused by pathogens, a register of biological preparations for plant protection is proposed.
Keywords
- Rhizoctonia Solani
- Trichoderma Harzianum
- Nuclear Polyhedrosis Virus
- Biological Preparation
- Soil Quality Indicator
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