A study investigated the effect of adding organic compost to soil on the growth of barley plants. The table below shows the average mass of 1000 grains harvested from each soil condition.
| Soil condition | Average mass of 1000 grains (g) |
|---|---|
| Soil without compost | 25 |
| Soil with organic compost | 45 |
Give one effect on the barley grains produced when plants are grown in soil with organic compost.
