Method for improving soil to plant arbors in severely-viscous saline-alkali land and application
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A saline-alkali soil and soil improvement technology, applied in the field of saline-alkali landscaping, can solve problems that hinder landscaping and development, and achieve the effect of preventing soil return to salt
Pending Publication Date: 2020-02-14
NANJING AGRICULTURAL UNIVERSITY
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[0004] Landscaping is the core content of urbanization construction. Many current gardens have seri
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Embodiment 1
[0025] The test site is located in Xuwei New District, southeast of Lianyungang City, Jiangsu Province; the soil plasticity index is 19, the content of particles with a particle size of less than 0.005mm is 40%, and the content of particles with a particle size of more than 0.075mm is 35%.
[0026] The tree planted is neem.
[0027] The method for improving and planting neem in severe sticky saline-alkali soil:
[0028] Ridging on the ground (ridge width 1.5m, ridge height 0.8m, ridge spacing is 50m), and drains are built at 50m intervals in the direction parallel to the ridges, with a depth of 1.0m and a width of 3.0m; drainage ditches are built at 30m intervals in the perpendicular direction to the ridges. The ditch is 0.8m deep, 3.0m wide, and the slope ratio is 1:1.5 (such as figure 1 As shown), it is connected with the surrounding water system to ensure that the drenching salt water can be discharged, and the excavated soil mound is placed on the surface to raise the mic...
Embodiment 2
[0033] The test site is located in Xuwei New District, southeast of Lianyungang City, Jiangsu Province; the soil plasticity index is 19, the content of particles with a particle size of less than 0.005mm is 40%, and the content of particles with a particle size of more than 0.075mm is 35%.
[0034] The tree planted is black locust.
[0035] The method for improving and planting Robinia pseudoacacia in severe sticky saline-alkali soil:
[0036] Ridging on the ground (ridge width 1.5m, ridge height 0.8m, ridge spacing is 50m), drains are built at intervals of 50m in the direction parallel to the ridges, with a depth of 1.0m and a width of 3.0m; drainage ditches are built at 30m in the direction perpendicular to the ridges. 0.8m deep, 3.0m wide, slope ratio 1:1.5 (such as figure 1 As shown), it is connected with the surrounding water system to ensure that the drenching salt water can be discharged, and the excavated soil mound is placed on the surface to raise the micro-topograp...
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Abstract
The invention discloses a method for improving soil to plant arbors in a severely-viscous saline-alkali land and an application thereof. The method includes ridging the ground in a planting area, andconstructing drainage channels at intervals of 45-55m parallel to the ridging direction; building a drainage ditch at 20-30m perpendicular to the ridge and communicating with the surrounding water system to ensure that the drenched salt water can be discharged, and padding the excavated soil pile on the soil surface to be elevated for micro-topography; rotary tilling the soil in the planting areauntil the maximum width of the soil mass is less than 3cm, adding a saline-alkali soil synergistic conditioner and an organic fertilizer, evenly spreading, turning the soil vertically and horizontallyand deeply, and mixing the soil fully and evenly; and after the arbor seedlings are planted, covering the roots with straw mats for 2-5cm. The method not only can improve the soil structure of the severely-viscous saline-alkali land, but also can accelerate salt leaching and prevent salt return, reduce the salt content and pH value of the soil, reduce the harm of saline-alkali to greening arbors,improve the survival rate of arbors, and promote the sustainable development of greening of the severely-viscous saline-alkali land.
Description
technical field [0001] The invention belongs to the field of saline-alkali land greening, and relates to a method for improving and planting arbors in heavily sticky saline-alkali soil and an application thereof. Background technique [0002] Soil is one of the basic elements constituting the environmental ecosystem and the material basis on which human beings depend for survival. It has certain fertility and can grow loose layers of plants. Saline-alkali soil and acidic soil are the two main low-yield soil types. With the development of industry, the area of irrigated land and facility cultivation continues to expand, and seawater intrusion into seashores and tidal flats has a tendency to expand saline-alkali land. Soil salinization has become a worldwide resource and ecological problem. The harm of salinity to plants is mainly reflected in: causing plant physiological drought, damaging plant tissues, affecting normal plant nutrition, and affecting the closure of plant s...
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