A method for improving the survival rate of saline-alkali saline locust tree
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A saponin tree and survival rate technology, applied in the field of improving saponin tree survival rate in saline-alkali land, can solve the problems of weak tree vigor, increased surface salt content, low survival rate, etc. The effect of improving the survival rate
Active Publication Date: 2021-01-22
INST OF AGRO FOOD SCI & TECH SHANDONG ACAD OF AGRI SCI
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In addition, due to the shallow groundwater in the tidal flat area of the Yellow River, the ground is mostly exposed, and the water evaporates quickly in the dry season. The salt will reach the surface with the evaporated water, increasing the salinity of the surface, seriously inhibiting the growth and development of surface plants, and forming a bad ecological cycle.
[0005] There is currently no effective solution for the low survival rate of saponin tree planting in saline-alkali land, weak tree vigor, and the phenomenon that the main trunk and central side branches of saponin tree are prone to die.
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Embodiment 1
[0032] In Nonggao District, Dongying City, the depth of groundwater level is 150cm, and the salt content of 20cm soil layer is 0.25%.
[0033] 1) preparation of saponins saplings
[0034] Select the small saponins annual sapling of local production, stem thick (diameter) 1.5cm, cut off main root and main stem top advantage, retain main root length 20cm and its upper side root, keep main stem length 40cm;
[0035] 2) Build a platform and build a pit
[0036] After autumn, build a trapezoidal platform with a top width of 100cm and a bottom width of 200cm. The length depends on the field; the distance between the plants is 150cm, and the size is: 30cm×30cm×40cm (length×width×depth). The gravel layer and the 5cm organic matrix layer, stepping on the covering soil 5cm;
[0037] 3) planting
[0038] Transplant in late October, one saponin sapling per pit, fill with soil and compact; the upper part of the pit is covered with 3 cm of organic substrate; the trapezoidal platform is c...
Embodiment 2
[0047] In the Yellow River Estuary Ecological Protection Zone of Dongying City, the groundwater depth is 120cm, and the salt content of the 20cm soil layer is 0.36%.
[0048] 1) preparation of saponins saplings
[0049] Select local production of small saponins annual saplings, stem thick (diameter) 1.5cm, cut off main root and main stem top advantage, keep main root 20cm and its upper side root, keep main stem 40cm.
[0050]2) Build a platform and build a pit
[0051] Build a trapezoidal platform after autumn, with a top width of 100cm, a bottom width of 200cm, and a plant spacing of 150cm to make holes. The specifications are: 30cm×30cm×40cm (length×width×depth). Add 5cm of gravel layer and 5cm of organic matrix to the bottom of the hole in turn. Layer, stepping on the soil covering 5cm;
[0052] 3) planting
[0053] Transplant in late October, one saponin sapling per pit, fill with soil and compact; the upper part of the pit is covered with 3 cm of organic substrate; the...
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Abstract
The invention discloses a method for improving the survival rate of gleditsia sinensis in saline-alkali soil. The method comprises the following steps: cutting out small gleditsia sinensis seeds at amain stem and main root, with apical dominance; then building a platform and a pit, sequentially adding gravels, organic substrate and soil to the bottom of the pit, and covering black ground fabric to a trapezoidal platform body; cutting out small lateral branches on the main stem where lateral branches come up in the spring in the next year, and reserving 2 to 3 lateral branches with strong growth vigor; topping the lateral branches to form branches when the height of the lateral branches becomes 1.6 to 1.8 meters; reserving 2 to 3 lateral branches on the topped branches according to space distribution, and constructing a compact crown. The method promotes the growth and development of a lateral root and the lateral branches in a mode of removing the apical dominance of the main root andthe main stem, inhibits the root dipping depth and the tree body height, improves the root quantity ratio distribution and lateral distribution space of a root in a shallow soil layer, and reduces the gravity center of the tree body. Through the method, the seedling recovering capacity of gleditsia sinensis seedlings can be obviously enhanced, the survival rate of transplanted seedlings is increased, and the two-year survival rate is increased by about 20 percent.
Description
technical field [0001] The invention relates to the technical field of planting medicinal materials, in particular to a method for improving the survival rate of Saponaria saponica in saline-alkali land. Background technique [0002] Saponaria is a deciduous tree, which is an ecological and economical tree species with great development and utilization value. It can be used as a natural raw material for medicine, health care products, cosmetics and washing products. It has high economic benefits and good market prospects. It is an excellent rich tree. It can effectively drive the economic development of the Yellow River tidal flat area. [0003] The saponin tree is a tap root plant, which belongs to a deep-rooted tree species, and the medicinal parts are saponins and saponins. Saponaria tree likes light and is slightly shade-tolerant, likes warm and humid climate and deep and moderately moist soil, but it is not strict with soil, and can grow normally in calcareous and sali...
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Application Information
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