When selecting a tractor, prioritize the Engine Horsepower (HP) relative to the terrain; 30-50 HP is ideal for rice paddies, while 70-100+ HP is better for sugarcane or corn plantations. Ensure the engine is Water-Cooled to handle the tropical climate and features a 4WD (Four-Wheel Drive) system for superior traction in muddy or flooded fields. Additionally, verify the PTO (Power Take-Off) speed, typically 540/720 RPM, to ensure compatibility with common implements like rotavators and disc plows.