Lawn rejuvenation method

Due to natural factors and poor management, almost all types of lawns are prone to degradation once. Renewal and rejuvenation is an important nursing work to ensure the durability of lawn, and it is also one of the main tasks of lawn industry in the future.

The measures for renewal and rejuvenation mainly include the following points.

1, hole loosening method

When the main reasons for lawn degradation are insufficient water and fertilizer, soil hardening and high lawn density, it is generally necessary to remove hay and sundries from the lawn first, replant grass seeds, loosen the soil and make holes in the lawn, withdraw fertilizer and seeds into the holes, and apply appropriate amount of water and fertilizer to promote the rapid growth and timely recovery of the lawn.

2, acid-base mediation method

If the acidity of the soil growing on the lawn is too high, lime should be applied to change the acidity of the soil. The dosage of lime should be adjusted to the range suitable for lawn growth, generally 0. 1kg per square meter. If a proper amount of sieved organic matter can be added, the effect will be better.

3. Rooting regeneration method

The lawn has degenerated due to soil hardening. On the completed lawn, you can regularly punch many holes in the lawn ground with a punch. The hole depth is about 10 cm, and fertilization in the hole can promote the growth of new roots. In addition, it can also be rolled up with a nail tube with a tooth length of three or four centimeters, or it can loosen the soil, cut off the old roots, and then sprinkle fertilizer on the lawn to promote its germination and rejuvenation.

For some plots with thick hay layer, hardened soil, uneven lawn grass density and long growth period, rotary tillage and root cutting cultivation measures can be adopted. The method is to use a rotary tiller for rotary tillage once, and then water and fertilize, which not only achieves the effect of cutting off old roots, but also makes lawn grass grow many new seedlings.

4. Methods of replanting damaged lawns

Due to poor drainage, soil erosion, human trampling and squeezing, lawns often die locally, so it is necessary to investigate and analyze the damage of lawns as soon as possible and take immediate measures to repair them. Transplanting method is often used for restoration, and irrigation and rolling are carried out immediately after transplanting, so as to facilitate the rapid recovery of growth and cover the ground. If direct seeding is used, in early spring or late autumn, the germinated grass seeds are evenly mixed with fertilizer and then spread on the lawn, or the lawn is cut out with a hob every 20 cm 1 slit, and compost is applied to promote the growth of new roots. For the phenomenon of lack of soil and root exposure caused by frequent pruning, watering and cleaning of hay layer, it is necessary to add soil and roll it in the germination stage of lawn or after pruning, usually once a year 1 time, more than after soil thawing in early spring.