Final answer:
The correct options are 1 and 4. To achieve an even cut with a reel mower, it is important to maintain sharp blades, mow at a consistent speed and height, and regularly adjust the reel. Additionally, frequent mowing influences the stabilization of the flowering time in grass, demonstrating an ecological aspect of mowing.
Step-by-step explanation:
To influence the evenness of a cut with a reel mower, there are several aspects that one needs to consider. The options provided give insights into what variables might impact the cut quality.
- Blade sharpness: Dull blades tend to tear the grass rather than cutting it cleanly, which can lead to an uneven appearance and potentially damage the grass. Keeping blades sharp is essential for an even, clean cut.
- Mowing speed: The speed at which the mower is pushed can influence the cut. Moving too fast may cause the mower to miss or unevenly cut certain areas. A consistent and moderate speed is best for achieving an even cut.
- Grass height: Mowing when the grass is too tall or too short can affect the evenness of the cut. The mower works best when cutting at the recommended height for the specific type of grass.
- Frequency of reel adjustments: Regular maintenance and adjustments to the reel ensure the blades are properly spaced and aligned with the knife, which contributes to an even cut.
Regarding the stabilization of flowering time, frequent mowing influences the predictability of flowering periods. Regular mowing creates a consistent environment, thereby stabilizing the flowering time, whereas this is not the case with unmown fields. The comparison of a mown field with an unmown field and their respective flowering times provides an understanding of the ecological influence of mowing on grasses. If one mentions a three-blade design of a mower, this kind of design, with a lower tip speed, is not only efficient in mowing but also contributes to safety, as shown in the figure referenced.