METHOD FOR CREATION AND CARE OF GRASS LAWN COVERING OF OPEN SPORTS GROUNDS Russian patent published in 1997 - IPC

FIELD: agriculture and construction. SUBSTANCE: method implies seeding of ground with grass, watering by spraying, hand weeding, and regular mowing of grass. After sowing of grass, irrigation by water spraying is effected twice per day. First mowing is carried out in dry weather at grass height of 8-10 cm. Further mowing procedures are performed at grass height not over 12 cm down to height not below 4-6 cm. After each use of grass-covered ground, damaged spots of it are repaired by way of raking and adding special soil mixture containing grass seeds, and each watering is performed to soil depth of 1-3 cm. Maintenance soil mixture has following components, mass %: chernozem - 60-80, peat - 35-18, dry softwood sawdust - 5-10. Entire surface of ground is periodically levelled by spreading maintenance soil mixture without seeds. Resodding of damaged spots is effected. Mowing is carried out not later than one day before use of ground. Last mowing in season is done with possibility of grass growing before coming of frost. Mineral fertilizer is introduced 5-10 days before use of ground. Before introduction of fertilizer, ground is shoveled. At application of fertilizer, it is washed off from leaves into soil with daily intensive watering of ground during 3-4 days. Created sod is regularly pierced by means of power-driven or manual sod-piercing implement. EFFECT: high efficiency. 9 cl