To find the area of the planting land needed for 5,000 seeds at a planting density of 30,000 seeds per acre, you can use the following formula:
\[ \text{Area (acres)} = \frac{\text{Number of seeds}}{\text{Planting density (seeds per acre)}} \]
Substituting in the values:
\[ \text{Area (acres)} = \frac{5000 \text{ seeds}}{30000 \text{ seeds per acre}} = \frac{5000}{30000} = \frac{1}{6} \text{ acres} \approx 0.167 \text{ acres} \]
Thus, the area of the planting land is 0.167 acres.