Light watering, e.g., for only 15 minutes, should be avoided because it promotes shallow roots that cannot reach the water table. Do not water, exept if there is little rain. In fall, you can have a complete soil test done at a garden centre or a lab to check the quality of your soil. Nitrogen promotes leaf formation and keeps the lawn green. Phosphorous stimulates root growth, and potassium helps the grass withstand the cold of winter and insect attacks.
Organic fertilizers contain the same nutrients as the synthetic types and are just as effective.
Apply the lime with a fertilizer spreader. Liming in spring or fall will give the best results, but you should never lime a newly seeded lawn. If a large dose of lime is required, divide it into two applications over two seasons. Wood ash is not recommended because it contains elements that may accumulate in the soil and eventually become toxic. As a rule, a well-tended lawn with good soil needs 1 to 2 kg of nitrogen per 100 m 2 every year.