In the turf management, in order to save the cost of cutting grass, in addition to mechanical grass cutting, plant growth regulators can also be used to control the growth of the lawn. For example, the use of a variety of plant growth regulators such as paclobutrazol on the lawn can make the cell gap of the turfgrass plant smaller and slower, the internodes become smaller, the leaves become thicker, the color becomes darker, and thus the growth is inhibited. What about paclobutrazol?
Paclobutrazol, also known as PP333, is a chemical agent that delays the growth of plants in the form of light brown powder. It is used for turf chemical regulation and has many advantages. After the application of paclobutrazol, the drought tolerance of turfgrass increased, the soluble sugar content in stems and leaves increased, the transpiration of leaves decreased, and the water consumption of turfgrass decreased by about 25%. After treatment with paclobutrazol, the degradation rate of chlorophyll and protein in turfgrass is slowed down, and the protective enzyme system in the body changes, which can delay turf aging and prolong the ornamental green stage.
How to use paclobutrazol. Generally used in the rapid growth period of the lawn, using paclobutrazol to prepare a liquid solution with a concentration of 200 to 300 PPM, sprayed quickly and evenly on the leaf surface of the grass with a sprayer, and the concentration should not be too large when using the medicine, so as not to inhibit the effect. Strong. It is usually sprayed within 2 to 3 days after trimming. It has been observed that the effect can be displayed 7 to 10 days after spraying, and the appearance of the lawn is dark green, and the viewing effect is excellent, and the time is long.
The number of tillers per unit area of ​​mixed turf increased rapidly after spraying, which was about 15% higher than that of unsprayed paclobutrazol. Therefore, the coverage of the lawn can be quickly increased to make it quickly ping. In addition, the planting height of the mixed grass of the bluegrass after spraying paclobutrazol was reduced by half compared with the unsprayed, which greatly reduced the number of lawn pruning.
In addition, there are four points worth noting. First, after spraying paclobutrazol, the leaves of Pingcao are dark green. This is a kind of appearance after application. Some people mistakenly think that there is no need to apply fertilizer. In fact, fertilizer should be applied during the fertilization to promote the growth of turfgrass. Second, if the concentration is too large and the inhibition is too strong, 1 mg to 2 mg of gibberellin can be used to water 1 kg, and spraying twice can alleviate the symptoms of over-conversion and restore normal growth. Third, paclobutrazol can be mixed with chemical pesticides, which can significantly improve its use effect. For example, the combination of paclobutrazol and rare earth can significantly improve the tillering power of the lawn. The fourth is combined with mechanical trimming. Although the use of paclobutraz is labor-saving, time-saving and labor-saving than mechanical pruning, it is difficult to completely replace mechanical pruning, and mechanical pruning can overcome the disadvantage of poor turf uniformity caused by pruning of the medicament.
Paclobutrazol, also known as PP333, is a chemical agent that delays the growth of plants in the form of light brown powder. It is used for turf chemical regulation and has many advantages. After the application of paclobutrazol, the drought tolerance of turfgrass increased, the soluble sugar content in stems and leaves increased, the transpiration of leaves decreased, and the water consumption of turfgrass decreased by about 25%. After treatment with paclobutrazol, the degradation rate of chlorophyll and protein in turfgrass is slowed down, and the protective enzyme system in the body changes, which can delay turf aging and prolong the ornamental green stage.
How to use paclobutrazol. Generally used in the rapid growth period of the lawn, using paclobutrazol to prepare a liquid solution with a concentration of 200 to 300 PPM, sprayed quickly and evenly on the leaf surface of the grass with a sprayer, and the concentration should not be too large when using the medicine, so as not to inhibit the effect. Strong. It is usually sprayed within 2 to 3 days after trimming. It has been observed that the effect can be displayed 7 to 10 days after spraying, and the appearance of the lawn is dark green, and the viewing effect is excellent, and the time is long.
The number of tillers per unit area of ​​mixed turf increased rapidly after spraying, which was about 15% higher than that of unsprayed paclobutrazol. Therefore, the coverage of the lawn can be quickly increased to make it quickly ping. In addition, the planting height of the mixed grass of the bluegrass after spraying paclobutrazol was reduced by half compared with the unsprayed, which greatly reduced the number of lawn pruning.
In addition, there are four points worth noting. First, after spraying paclobutrazol, the leaves of Pingcao are dark green. This is a kind of appearance after application. Some people mistakenly think that there is no need to apply fertilizer. In fact, fertilizer should be applied during the fertilization to promote the growth of turfgrass. Second, if the concentration is too large and the inhibition is too strong, 1 mg to 2 mg of gibberellin can be used to water 1 kg, and spraying twice can alleviate the symptoms of over-conversion and restore normal growth. Third, paclobutrazol can be mixed with chemical pesticides, which can significantly improve its use effect. For example, the combination of paclobutrazol and rare earth can significantly improve the tillering power of the lawn. The fourth is combined with mechanical trimming. Although the use of paclobutraz is labor-saving, time-saving and labor-saving than mechanical pruning, it is difficult to completely replace mechanical pruning, and mechanical pruning can overcome the disadvantage of poor turf uniformity caused by pruning of the medicament.
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