lawn

Bluegrass turf likes light and shade, likes warmth and moisture, and has strong cold tolerance. It has poor drought tolerance. Its growth stagnates in the hot summer, and it grows luxuriantly in spring and autumn. It grows well in wetlands with good drainage and fertile soil. It has good rhizome reproduction ability and good regeneration. More resistant to trampling. In the northwest region
.
Poa annua
Poa annua is a perennial herbaceous plant of the family Gramineae. The leaves are smooth and the front tip is slightly raised, resembling a head keel. The young leaves are arranged in a folded sheath with underground rhizomes. It has poor drought tolerance and heat tolerance. In the absence of water or in hot summer, the growth is slow or stagnant. The leaf tips turn yellow and the greenness is poor. Bluegrass requires good drainage, loose texture and rich organic matter soil. It grows more vigorously on calcareous soil, and the optimal value is
~
.
cm. The appropriate seeding rate is
~
g/
m2. It takes about
~
days for grassland bluegrass seeds to germinate, and is slow to establish (about
days). It has poor ability to compete with weeds in the seedling stage, and often competes with perennial ryegrass, purple fescue, etc. Sow a mixture of fast-growing grass seeds. In areas with relatively cold winters, the mixing ratio of perennial ryegrass should generally not exceed %
.

The bluegrass lawn has dark green leaves and a very beautiful appearance. It must be maintained carefully and should be pruned (leaving stubble
~
cm), fertilized and watered in time. . If the grassland bluegrass has been growing for a long time, it is easy to form a grass cushion layer, which affects the penetration of water and fertilizer and the circulation of air, thus leading to the gradual degradation of the lawn. In this case, a vertical cutter can be used to
~
centimeters Cut vertically at regular intervals, which can not only improve the permeability of the ground surface, but also cut off the rhizomes, promote plant tillering, and make the lawn durable.
Grass bluegrass+%
Purple fescue+%< br/>Perennial ryegrass
Meadow bluegrass+%
Perennial ryegrass
Meadow bluegrass+%
Purple fescue+%
Perennial ryegrass+%< br/>Creeping bentgrass
Grain bluegrass+%
Tall fescue+%
Perennial ryegrass
Poa bluegrass +%
Tall fescue+%
Perennial ryegrass