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Method for passivating and slowly killing ryegrass in overseeding lawn

A technology of ryegrass and turfgrass, which is applied in the field of chemical weeding and green planting, can solve the problems of late fading in summer, late jointing and heading, energy consumption, etc., and achieve the effects of increasing light transmittance, promoting early germination, and increasing light transmittance Effect

Active Publication Date: 2017-09-01
镇江润祥农业科技有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] However, most of the cool-season turfgrass species that are overseeded in autumn in my country are imported perennial ryegrass (Loliumperenne L). Disadvantages of recovery growth: First, the growth point of this type of grass is low, resulting in low pruning that has little impact on this; second, the jointing and heading are delayed, and the fading in summer is too late, which seriously restricts the greening and recovery of warm-season turfgrass. The warm-season turfgrass cannot be recovered; the third is that it is a perennial grass, and it will not fade in summer, which will affect the uniformity and landscape effect of the lawn. Energy, increasing costs, and green disruption around January
[0004] Although there are also researches in this area, the application effect is not ideal due to the unbalanced succession of cold and warm, and the unbalanced transition of green.

Method used

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  • Method for passivating and slowly killing ryegrass in overseeding lawn
  • Method for passivating and slowly killing ryegrass in overseeding lawn
  • Method for passivating and slowly killing ryegrass in overseeding lawn

Examples

Experimental program
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Effect test

Embodiment 1

[0022] 1. Location: The lawn base of Liuxiang Village, Guozhuang Town, Jurong City, Jiangsu Province (Zhenjiang Runxiang Garden Technology Development Co., Ltd.) is being overseeded.

[0023] 2. Medication time: 36% benzyl dichloride (3% bensulfuron-methyl + 33% quinclorac) was seen on March 23, 2015, and March 27, 2016, respectively, and the warm-season lawn grass germinated When it is time to choose a sunny day, the temperature is between 15°C and 20°C. In mid-to-late April, use 11% triflusulfuron-methyl sodium salt 15-20 ml / mu, and add 40-45 kg of water. Kill perennial ryegrass. Water was used as the control.

[0024] 3. Grass species: Tiantang 328 is the warm-season grass species, and the transition king among perennial ryegrass is the cool-season grass species.

[0025] 4. Operation process:

[0026] (1) Trimming:

[0027] 7 days before preparing to use the medicine, use a pruning machine to cut the perennial ryegrass at a low level, control the height at 2.5-3.5 cm,...

Embodiment 2

[0041] Same as Example 1, the difference is that the medication time is March 25 and April 12 respectively. The dosage of 36% benzyl dichloride inhibitor is 35 g / mu, and the dosage of 11% triflusulfuron-methyl sodium salt is 20 ml / mu. After 15 days of using the inhibitor, it will be used again in the middle and late April 11% Trifloxysulfuron sodium salt.

[0042] Results: After 30 days of application, the average horizontal angle of ryegrass leaves was 82.5 degrees, and the light transmittance under ryegrass was 44.7%. Seasonal turfgrass cover changes up to 78.9%.

Embodiment 3

[0044] Same as Example 1, the difference is that the medication time is March 27 and April 13 respectively. The dosage of 36% benzyl dichloride inhibitor is 45 g / mu, and the dosage of 11% triflusulfuron-methyl sodium salt is 15 ml / mu. 20 days after using the inhibitor, it will be used again in the middle and late April 11% Trifloxysulfuron sodium salt.

[0045] Results: After 30 days of application, the average horizontal angle of ryegrass leaves was 81.4 degrees, and the light transmittance under ryegrass was 43.8%. Seasonal turfgrass cover changes up to 79.1%.

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Abstract

The invention discloses a method for passivating and slowly killing ryegrass in an overseeding lawn. The method comprises the following steps of (1) carrying out low shearing on perennial ryegrass before premedication, controlling the height to be 2.5-3cm and following the 1 / 3 principle of lawn trimming; (2) firstly spraying a benzyl dichloride inhibitor on soil of the perennial ryegrass when warm season turfgrass turns green, and passivating the perennial ryegrass; and (3) killing the perennial ryegrass by using trifloxysulfuron sodium 15-20d after using the inhibitor. Compared with the prior art, after the method for passivating and slowly killing the ryegrass in the overseeding lawn is used, the height of the perennial ryegrass is significantly reduced, the leaves are obviously upward, the underlying light transmittance of the ryegrass is significantly increased and the warm season turfgrass can turn green about 34 days earlier.

Description

technical field [0001] The invention relates to a method for passivating and slowly killing ryegrass in overseeding lawns, and belongs to the technical field of greening and planting and the field of chemical weeding. Background technique [0002] Due to the influence of the monsoon in the vast area from the south of the Yellow River to the Yangtze River and the Qiantang River in my country, the annual temperature range is relatively large, often around 50°C. In this area, no grass species can survive such a large temperature difference. The following shows evergreen seasons. However, warm-season turfgrass is usually planted in this area. The biggest defect of this type of grass is dormancy and yellowing in winter. In order to solve this defect, people often sow on warm-season turf grass one month before it fades. Cool-season turfgrass to achieve the purpose of evergreen in all seasons, so as to meet people's needs for winter green and landscape. This is "overcast", also kn...

Claims

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Application Information

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IPC IPC(8): A01M21/04A01N47/36A01N43/42A01P13/02
CPCA01M21/043A01N43/42A01N47/36A01N2300/00
Inventor 李祖祥夏爱华夏祖国
Owner 镇江润祥农业科技有限公司
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