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The optimal growth temperature of cool-season turfgrass is 15 24, and it is widely distributed in humid, semi-humid and semi-arid areas with cool climate. It is more difficult to oversummer in the south, and special maintenance measures must be taken, otherwise it is easy to age and die. Grass, fescue, perennial ryegrass, small chaff grass and reed fescue are the most suitable cold-ground turfgrass species in northern China.
As. 1. Tall fescue.
Second, the early maturing grass three, ryegrass four, the genus of the sage.
Warm-season turfgrass.
Warm-land turf grasses are mainly distributed in the vast areas south of the Yangtze River in China, and the optimal temperature for growth is between 26 and 32. Only a few species have access to seeds. It is mainly vegetative reproduction.
It has quite strong growth and competitiveness, and once the community is formed, it is difficult for other grasses to invade, and most of them are monospecies.
Such as 1, dogtooth root genus 2, knotweed genus 3, bison grass genus 4, carpet grass genus.
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The boundary is mainly Qinling-Huaihe River, and the cool-season lawn is suitable for growing in areas with low annual average temperature, long winter and low temperature, and the main varieties are early-maturing grass, tall fescue, etc. Warm-season grasses are suitable for growing south of the Huai River in the Qinling Mountains, and require slightly higher temperatures, such as bison grass and knotweed. For example, Beijing, the southern part of Hebei, and Tianjin can grow in both cold and warm season types, mainly depending on the microclimate.
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Cool-season lawns like cold and cool climates, after the hot summer of high temperature and humidity, how to strengthen maintenance management in autumn and restore the lawn to a good growth trend is a problem that maintenance managers need to solve.
Watering. Autumn is dry and rainy, windy, dry air, and the ground is cracked, so timely watering is very necessary. Conditional places, generally each.
Reach. Water once a day. The time should be selected in the morning.
Point before or in the afternoon.
point later. It should be watered thoroughly every time, especially in the case of a long drought and no rain, to reach deep into the soil layer.
Centimeter. Advisable.
Fertilize. Trim.
Cool-season lawns like water and fertilizer, every year.
Reach. The middle of the month is the rapid growth period, if the pruning is not timely, it is easy to lodging, yellowing, breeding and disease. Turfgrass flowering consumes a lot of nutrients, so flowering should be avoided and cut off in time once the inflorescence is formed. The height of the last pruning before the start of winter should not be lower.
Centimeter. It is good for the lawn to withstand cold and winter.
Pest and disease control.
In autumn, the weather is cooler, and turfgrass pests and diseases are significantly reduced. In autumn, the main ante is to control rust, and once found, appropriate measures should be taken in time.
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Lawns are divided into cool-season lawns and late-season lawns in the warm season according to the climatic hidden type. ()
a.That's right. b.Mistake.
Correct Answer: True.
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