Intro
Preface
Contents
The Structure of Engine Power of Agricultural Tractors Registered in Poland Between 2010 and 2020
1 Introduction
2 Research Method
3 Results and Discussion
4 Conclusions
References
Tillage Quality and Draught Force of a Novel Plough Concept with Cambered Disc
1 Introduction
2 Materials and Methods
2.1 Site Description
2.2 Design of the Hybrid Plough
2.3 Experimental Design
2.4 Tillage Quality Assessment
2.5 Draught Force Measurement
2.6 Statistical Analysis
3 Results and Discussion
3.1 Tillage Quality

3.2 Draught Force
References
Theoretical Study of the Trajectory of Movement of a Ploughing Aggregate with a Reversible Plough on the Headlands
1 Introduction
2 Materials and Methods
3 Results and Discussion
4 Conclusions
References
Research of the Possibilities to Improve the Quality of Potatoes Harvesting by Including an Experimental Heap Leveler-Distributor in the Design of Harvesting Machines
1 Introduction
2 Materials and Methods
3 Results and Discussion
4 Conclusions
References

Theoretical Studies of the Relationship Between the Parameters of the Bridge Tractor and the Engineering Area of the Field
1 Introduction
2 Materials and Methods
3 Results and Discussion
4 Conclusions
References
Research into Power and Load Parameters of Flexible Screw Conveyors for Transportation of Agricultural Materials
1 Introduction
2 Materials and Methods
3 Results and Discussion
4 Conclusions
References
Assessment of a Big Square Baler Able to Reduce Soil Impurities During Baling Process. First Evaluations
1 Introduction
2 Cicoria HD 1270 Baler

3 Materials and Methods
4 Results and Discussion
5 Conclusions
References
The Methane Potential of Corn Cob Cores
1 Introduction
2 Materials and Methods
2.1 Corn Cobs Cores and Its Characteristics
2.2 Laboratory Investigations
2.3 Methane Yield
2.4 Energetic Calculations
3 Results
3.1 Physical Properties and Chemical Composition of Corn Cob Cores
3.2 Biogas and Methane Yield
3.3 Energetic Calculations
References
Energy Comparison of Corn Stover Fraction
1 Introduction
1.1 Challenges for Energy
1.2 Agriculture Biomass

2 Materials and Methods
2.1 Corn Stover Fraction and Its Characteristics
2.2 Laboratory Investigations
2.3 Combustion Heat and Calorific Value
2.4 Statistical Analysis
3 Results
3.1 Physical and Chemical Properties of Corn Stover Fractions
3.2 Heat of Combustion and Calorific Value
References
Economic Effects of Food Industry Waste Management in the Context of Sustainable Development
1 Introduction
2 Types of Waste and their Economic Aspects of Use
3 Conclusions
References
Ranking of Plant Biomass by Fuel Value Index
1 Introduction