Protection method suitable for overwintering of zoysia matrella in Liaoning region

Abstract

The invention provides a protection method suitable for overwintering of zoysia matrella in Liaoning region. The method comprises two parts: 1, a protection method before overwintering in autumn, including three times of pruning, three layers of covering and watering, and geotextile covering; the spring reviving treatment method comprises the steps of watering reviving water, removing geotechnical cloth, covering a mulching film and removing the mulching film. According to the method, agricultural solid waste is used as an overwintering protection material, and corresponding management methods and measures are combined, so that the aim of enabling zoysia matrella to smoothly overwinter is achieved. The method is low in cost and durable and stable in protection effect.

Description

Technical Field

[0001] The invention belongs to the technical field of lawn maintenance, and relates to a protection method suitable for overwintering Zoysia japonica in Liaoning Province, and in particular to a method for overwintering Zoysia japonica by utilizing agricultural solid waste at low cost. Background Art

[0002] Zoysia matrella is widely used in ornamental lawns, sports field lawns, and open lawns due to its strong drought resistance and suitability for extensive management. Its fine leaves, long green period, and dense grass layer make it a popular choice. Zoysia matrella is generally distributed in subtropical and subtropical regions and is widely used in Guangdong, Guangxi, and the Yangtze River Basin in my country. However, Zoysia matrella has poor cold resistance and suffers severe frost damage below 0°C. It generally cannot overwinter in places below -5°C. This limits the promotion and application of Zoysia matrella in northern my country. Developing a low-cost overwintering protection technology for Zoysia matrella suitable for northern my country, especially Liaoning, can fill the gap in the application of Zoysia matrella in ecological restoration projects in northern my country and provide a basis for the promotion and application of Zoysia matrella in northern my country. Summary of the Invention

[0003] In order to solve the above problems, the present invention provides a method of utilizing agricultural solid waste as wintering protection material, combined with corresponding management methods and measures, to achieve the purpose of allowing Zoysia japonica to successfully overwinter. The method of the present invention is not only low-cost, but also has a long-lasting and stable protection effect.

[0004] The technical solution adopted in the present invention is:

[0005] A method for protecting Zoysia japonica from wintering in Liaoning Province includes two parts, and the specific steps are as follows:

[0006] 1) Protection methods before wintering in autumn

[0007] 1.1) Pruning: When the minimum temperature drops to 13-15°C, start the first pre-winter pruning, leaving a stubble height of 3 cm; when the minimum temperature drops to 10-15°C, start the second pre-winter pruning, leaving a stubble height of 2 cm; when the minimum temperature drops to 5-8°C, start the third pre-winter pruning, leaving a stubble height of 1.5 cm;

[0008] 1.2) First layer of mulch: After the third pruning, when the minimum temperature drops to 5-8°C, immediately apply raw sawdust mulch;

[0009] 1.3) Watering: Water immediately after covering the raw sawdust to ensure that the raw sawdust is evenly covered and prevented from being blown away by strong winds;

[0010] 1.4) Second layer of covering: When the minimum temperature drops to 3-5℃, cover with a layer of fine sand;

[0011] 1.5) Watering: Water the plants immediately after applying the second layer of mulch;

[0012] 1.6) Pressing: Use a roller weighing 100 kg to press the covering once to compact it;

[0013] 1.7) Third layer of covering: When the minimum temperature drops to 0-2°C, cover the surface of the fine sand layer with a mixture of rice husks and coconut coir;

[0014] 1.8) Watering: Water immediately after covering to ensure that the surface covering is completely wet;

[0015] 1.9) Geotextile Covering: Cover the surface with geotextile the day after watering and fix it with "U"-shaped iron wire;

[0016] 2) Spring greening treatment method

[0017] 2.1) Watering: When the lowest temperature in the spring of the following year reaches 8-10℃, water the surface of the geotextile to ensure that the surface soil is moist;

[0018] 2.2) Remove the geotextile: Remove the geotextile when the minimum temperature reaches 10-15℃;

[0019] 2.3) Covering with mulch film: After removing the geotextile, immediately cover the lawn surface with agricultural mulch film and use "U"-shaped iron wire to fix the mulch film;

[0020] 2.4) Remove the ground film: Remove the ground film when the minimum temperature reaches 13-15℃.

[0021] Preferably, in the above-mentioned method for protecting Zoysia japonica overwintering in Liaoning Province, in step 1.2), the covering thickness is 0.8-1 cm.

[0022] Preferably, in the above-mentioned method for protecting Zoysia japonica overwintering in Liaoning Province, in step 1.4), the covering thickness is 0.5-0.8 cm.

[0023] Preferably, in the above-mentioned method for protecting Zoysia japonica overwintering in Liaoning Province, in step 1.7), the volume ratio of the mixture of rice husk and coconut husk is 1:1.

[0024] Preferably, in the above-mentioned method for protecting Zoysia japonica overwintering in Liaoning Province, in step 1.7), the covering thickness is 1-1.2 cm.

[0025] Preferably, in the above-mentioned method for protecting Zoysia japonica overwintering in Liaoning Province, in step 1.9), the thickness of the geotextile is 0.4 cm.

[0026] The beneficial effects of the present invention are:

[0027] 1. Promoting the smooth overwintering of Zoysia japonica: The solution adopted by the present invention can take multi-layer protection measures for the runners and rhizomes of Zoysia japonica in winter, avoiding the dryness of the runners and rhizomes caused by winter dryness, thereby ensuring the smooth overwintering of the lawn.

[0028] 2. Improve the microenvironment on the lawn surface: By adopting multi-layer covering, the microenvironment on the lawn surface is improved, which can not only retain moisture but also keep warm, reducing the impact of frost damage on the stems of Zoysia japonica.

[0029] 3. Low cost: The covering materials used in the present invention are all agricultural solid wastes, the purchase cost is low, and the waste recycling is realized, so the cost is extremely low.

[0030] 4. High survival rate over winter: Through more than two years of experiments in Shenyang, the survival rate of grass stems over winter reached more than 85%. DETAILED DESCRIPTION

[0031] Embodiments of the invention are directed to a method for protecting Zoysia japonica from overwintering in Shenyang

[0032] 1) Protection methods before wintering in autumn

[0033] 1.1) Pruning: Start the first pre-winter pruning when the minimum temperature drops to 13-15℃, with a stubble height of 3cm; start the second pre-winter pruning when the minimum temperature drops to 10-15℃, with a stubble height of 2cm; start the third pre-winter pruning when the minimum temperature drops to 5-8℃, with a stubble height of 1.5cm; through the three prunings in autumn, the nutrient accumulation of the runners and rhizomes of Zoysia japonica before winter is promoted, and convenient conditions are provided for subsequent covering.

[0034] 1.2) First layer of covering: After the third pruning, when the minimum temperature drops to 5-8℃, immediately cover with raw sawdust with a thickness of 0.8-1cm.

[0035] 1.3) Watering: Water immediately after covering the raw sawdust to ensure that the raw sawdust is evenly covered and prevent it from being blown away by strong wind.

[0036] 1.4) Second layer of covering: When the minimum temperature drops to 3-5℃, cover with a layer of fine sand with a thickness of 0.5-0.8cm.

[0037] 1.5) Watering: Water the plants immediately after applying the second layer of mulch.

[0038] 1.6) Pressing: Use a roller weighing 100 kg to press the covering material firmly.

[0039] 1.7) Third layer of covering: When the minimum temperature drops to 0-2°C, cover the surface of the fine sand with a mixture of rice husk and coconut coir in a volume ratio of 1:1 to a thickness of 1-1.2 cm.

[0040] 1.8) Watering: Water immediately after covering to ensure that the surface covering is completely wet.

[0041] 1.9) Geotextile covering: On the second day after watering, cover the surface with 0.4 cm thick geotextile and fix it with “U” shaped iron wire.

[0042] 2) Spring greening treatment method

[0043] 2.1) Watering for greening: When the lowest temperature in the spring of the following year reaches 8-10℃, water the surface of the geotextile to ensure that the surface soil is moist.

[0044] 2.2) Remove the geotextile: Remove the geotextile when the minimum temperature reaches 10-15℃.

[0045] 2.3) Covering with mulch film: After removing the geotextile, immediately cover the lawn surface with agricultural mulch film and use "U"-shaped iron wire to fix the mulch film.

[0046] 2.4) Remove the ground film: Remove the ground film when the minimum temperature reaches 13-15℃.

[0047] By adopting the method of the present invention, through experiments in Shenyang for more than two years, the survival rate of the stems of Zoysia japonica overwintering reached more than 85%.

Claims

1. A method for protecting Zoysia japonica from overwintering in Liaoning Province, comprising the following steps: 1) Protection methods before wintering in autumn 1.1) Pruning: When the minimum temperature drops to 13-15°C, start the first pre-winter pruning, leaving a stubble height of 3 cm; when the minimum temperature drops to 10-15°C, start the second pre-winter pruning, leaving a stubble height of 2 cm; when the minimum temperature drops to 5-8°C, start the third pre-winter pruning, leaving a stubble height of 1.5 cm; 1.2) First layer of mulch: After the third pruning, when the minimum temperature drops to 5-8°C, immediately apply raw sawdust mulch; 1.3) Watering: Water immediately after covering the raw sawdust to ensure that the raw sawdust is evenly covered and prevented from being blown away by strong winds; 1.4) Second layer of covering: When the minimum temperature drops to 3-5℃, cover with a layer of fine sand; 1.5) Watering: Water the plants immediately after applying the second layer of mulch; 1.6) Pressing: Use a roller weighing 100 kg to press the covering once to compact it; 1.7) Third layer of covering: When the minimum temperature drops to 0-2°C, cover the surface of the fine sand layer with a mixture of rice husk and coconut coir; 1.8) Watering: Water immediately after covering to ensure that the surface covering is completely wet; 1.9) Geotextile Covering: Cover the surface with geotextile the day after watering and fix it with "U"-shaped iron wire; 2) Spring greening treatment method 2.1) Watering: When the lowest temperature in the spring of the following year reaches 8-10℃, water the surface of the geotextile to ensure that the surface soil is moist; 2.2) Remove the geotextile: Remove the geotextile when the minimum temperature reaches 10-15℃; 2.3) Covering with mulch film: After removing the geotextile, immediately cover the lawn surface with agricultural mulch film and use "U"-shaped iron wire to fix the mulch film; 2.4) Remove the ground film: Remove the ground film when the minimum temperature reaches 13-15℃.

2. The method for protecting Zoysia japonica from overwintering in Liaoning Province according to claim 1, characterized in that: In step 1.2), the covering thickness is 0.8-1 cm.

3. The method for protecting Zoysia japonica from overwintering in Liaoning Province according to claim 1, characterized in that: In step 1.4), the covering thickness is 0.5-0.8 cm.

4. The method for protecting Zoysia japonica from overwintering in Liaoning Province according to claim 1, characterized in that: In step 1.7), the volume ratio of the rice husk to coconut husk mixture is 1:

1.

5. The method for protecting Zoysia japonica from overwintering in Liaoning Province according to claim 1, characterized in that: In step 1.7), the covering thickness is 1-1.2 cm.

6. The method for protecting Zoysia japonica from overwintering in Liaoning Province according to claim 1, characterized in that: In step 1.9), the thickness of the geotextile is 0.4 cm.