CN112514761B - Forestation method for promoting rapid rooting of stem of ulmus pumila planted in arid sandy land in ultra-deep mode - Google Patents
Forestation method for promoting rapid rooting of stem of ulmus pumila planted in arid sandy land in ultra-deep mode Download PDFInfo
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- A—HUMAN NECESSITIES
- A01—AGRICULTURE; FORESTRY; ANIMAL HUSBANDRY; HUNTING; TRAPPING; FISHING
- A01G—HORTICULTURE; CULTIVATION OF VEGETABLES, FLOWERS, RICE, FRUIT, VINES, HOPS OR SEAWEED; FORESTRY; WATERING
- A01G23/00—Forestry
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- A—HUMAN NECESSITIES
- A01—AGRICULTURE; FORESTRY; ANIMAL HUSBANDRY; HUNTING; TRAPPING; FISHING
- A01G—HORTICULTURE; CULTIVATION OF VEGETABLES, FLOWERS, RICE, FRUIT, VINES, HOPS OR SEAWEED; FORESTRY; WATERING
- A01G17/00—Cultivation of hops, vines, fruit trees, or like trees
- A01G17/005—Cultivation methods
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- A—HUMAN NECESSITIES
- A01—AGRICULTURE; FORESTRY; ANIMAL HUSBANDRY; HUNTING; TRAPPING; FISHING
- A01G—HORTICULTURE; CULTIVATION OF VEGETABLES, FLOWERS, RICE, FRUIT, VINES, HOPS OR SEAWEED; FORESTRY; WATERING
- A01G7/00—Botany in general
- A01G7/06—Treatment of growing trees or plants, e.g. for preventing decay of wood, for tingeing flowers or wood, for prolonging the life of plants
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- A—HUMAN NECESSITIES
- A01—AGRICULTURE; FORESTRY; ANIMAL HUSBANDRY; HUNTING; TRAPPING; FISHING
- A01N—PRESERVATION OF BODIES OF HUMANS OR ANIMALS OR PLANTS OR PARTS THEREOF; BIOCIDES, e.g. AS DISINFECTANTS, AS PESTICIDES OR AS HERBICIDES; PEST REPELLANTS OR ATTRACTANTS; PLANT GROWTH REGULATORS
- A01N37/00—Biocides, pest repellants or attractants, or plant growth regulators containing organic compounds containing a carbon atom having three bonds to hetero atoms with at the most two bonds to halogen, e.g. carboxylic acids
- A01N37/10—Aromatic or araliphatic carboxylic acids, or thio analogues thereof; Derivatives thereof
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- A—HUMAN NECESSITIES
- A01—AGRICULTURE; FORESTRY; ANIMAL HUSBANDRY; HUNTING; TRAPPING; FISHING
- A01N—PRESERVATION OF BODIES OF HUMANS OR ANIMALS OR PLANTS OR PARTS THEREOF; BIOCIDES, e.g. AS DISINFECTANTS, AS PESTICIDES OR AS HERBICIDES; PEST REPELLANTS OR ATTRACTANTS; PLANT GROWTH REGULATORS
- A01N43/00—Biocides, pest repellants or attractants, or plant growth regulators containing heterocyclic compounds
- A01N43/34—Biocides, pest repellants or attractants, or plant growth regulators containing heterocyclic compounds having rings with one nitrogen atom as the only ring hetero atom
- A01N43/36—Biocides, pest repellants or attractants, or plant growth regulators containing heterocyclic compounds having rings with one nitrogen atom as the only ring hetero atom five-membered rings
- A01N43/38—Biocides, pest repellants or attractants, or plant growth regulators containing heterocyclic compounds having rings with one nitrogen atom as the only ring hetero atom five-membered rings condensed with carbocyclic rings
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02A—TECHNOLOGIES FOR ADAPTATION TO CLIMATE CHANGE
- Y02A40/00—Adaptation technologies in agriculture, forestry, livestock or agroalimentary production
- Y02A40/10—Adaptation technologies in agriculture, forestry, livestock or agroalimentary production in agriculture
- Y02A40/22—Improving land use; Improving water use or availability; Controlling erosion
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
- Y02P60/00—Technologies relating to agriculture, livestock or agroalimentary industries
- Y02P60/40—Afforestation or reforestation
Abstract
The invention relates to a forestation method for promoting rapid rooting of Ulmus pumila stems planted in drought and sandy land in ultra-deep manner, wherein before sprouting in spring, 1-2 year-old Ulmus pumila seedlings with the ground diameter of 1.0-1.5cm and the tree height of 1.5-2.0m are selected to be temporarily planted near the forestation land; soaking 55-65cm high part of the stem of the seedling with water 2-3 days before afforestation; performing semi-girdling on a plurality of parts of the seedling stem; coating the stem semi-girdling wound with a rooting agent paste, and airing until the rooting agent paste is adhered to the seedling stem; the rooting agent paste contains a rooting agent and water-soluble cellulose; digging a pit in the afforestation land, wherein the diameter of the pit is 15-20cm, the depth of the pit is 55-65cm, placing the nursery stock coated with the rooting agent paste into the pit, backfilling the soil until the soil surface in the pit is 2-12cm lower than the soil surface outside the pit, and repairing the scaled pit. By adopting the method, the survival rate of super deep planting and afforestation of the dry sand ulmus pumila reaches 95 percent (more than 45 percent higher than that of the conventional method), the rooting rate and the growth rate are improved by more than 15 percent compared with the nursery stock planted by the conventional method, and the nursery stock grows vigorously.
Description
Technical Field
The invention relates to a drought sand field nursery stock cultivation technology, in particular to a forestation method for promoting rapid rooting of super-deep-planted ulmus pumila stems in drought sand fields.
Background
In arid sandy land, because deep soil often contains more and stable water content, the root system of the seedling is directly planted in the deep soil, so that the seedling can stably absorb the water contained in the deep soil for a long time, and the survival and growth needs of the seedling are further maintained. However, in rainy season, rainfall makes the water in the shallow layer of the soil quickly supplemented, and the water is difficult to permeate into the deep layer of the soil, and the seedling root system in the deep layer of the soil is difficult to obtain sufficient water, so that the growth is slow. If the deeply buried stem (the stem is positioned above the root system) of the seedling can rapidly take root, the survival of the seedling can be better maintained, the rapid growth of the seedling can be promoted, and the drought resistance of the seedling can be improved.
Disclosure of Invention
Technical problem to be solved
In view of the prior art, the invention provides an afforestation method for promoting rapid rooting of ultradeeply planted elm stems in dry sand, which is used for solving the technical problems that the roots of ultradeeply planted seedlings cannot absorb sufficient water, so that the survival of the seedlings is threatened and the growth of the seedlings is inhibited because rainfall is difficult to permeate into deep soil.
(II) technical scheme
In order to achieve the purpose, the invention adopts the main technical scheme that:
the invention provides an afforestation method for promoting rapid rooting of ultradeeply planted elm stems in arid sandy land, which comprises the following steps:
s1, trimming stem lateral branches of the ulmus pumila: before spring germination, selecting 1-2 year-old Ulmus pumila seedlings with ground diameter of 1.0-1.5cm and tree height of 1.5-2.0m for lifting, trimming to remove lateral branches below 55-65cm, and performing temporary planting near afforestation land;
s2, soaking the stems of the ulmus pumila: 2-3 days before afforestation, taking out the temporary planted nursery stock of the S1, and putting the temporary planted nursery stock into a water tank to soak 55-65cm of height of the nursery stock stem with water;
s3, semi-girdling of the seedling stems: performing semi-girdling on the seedling stem, wherein the semi-girdling depth is just to cut through the bark;
s4, coating a rooting agent paste on the wound: coating the stem semi-girdling wound of the ulmus pumila by using a rooting agent paste, and airing until the rooting agent paste is adhered to the seedling stem without falling off;
the rooting agent paste contains a rooting agent and water-soluble cellulose, and is regulated to be pasty by talcum powder/calcium carbonate powder;
s5, ultra-deep planting and afforestation: digging a pit in the afforestation land, wherein the diameter of the pit is 15-20cm, the depth of the pit is 55-65cm, placing the nursery stock coated with the rooting agent paste into the pit, backfilling soil into the pit until the soil surface in the pit is 2-12cm lower than the soil surface outside the pit, and building the scale pit.
According to the preferred embodiment of the invention, in S1, the lateral branches of the nursery stock with the height of less than 60cm are pruned and removed, and the temporary planting is carried out near the afforestation site.
According to the preferred embodiment of the invention, in S2, the water tank is a soil pit dug out on the ground, the depth is 55-65cm, and the area of the soil pit can be used for containing all the seedlings to be heeled in; and a whole piece of waterproof cloth is laid in the pit to prevent water leakage. The seedling stems are fully soaked to absorb water, and the germination of new roots from the root primordium is facilitated. The function of the adhesive rooting agent paste is to prolong the time of the agent acting on the stem semicircular cut wound, and when the agent meets sufficient moisture, the paste automatically dissipates and does not prevent the stem cut wound from sprouting new roots.
According to the preferred embodiment of the invention, in S2, the temporary planting nursery stock is obliquely placed in the soil pit, water is injected until the water depth reaches 60cm of the stem of the nursery stock, and the nursery stock is soaked for 1-2 days.
According to the preferred embodiment of the present invention, in S3, a pruning shear or a knife is used to perform semi-girdling on multiple parts of the stem of the seedling, and the nicks of two adjacent semi-girdling are staggered. The purpose of forming dislocation is to make the roots growing out of the seedling stem disperse around the periphery of the seedling stem, and avoid the phenomenon that the growing root system is only concentrated on one side of the stem.
According to the preferred embodiment of the invention, in S3, 4-5 semi-girdling wounds are formed on each seedling stem, and the distance between every two adjacent semi-girdling wounds is 8-12cm.
According to a preferred embodiment of the present invention, in S3, semi-girdling is performed on each seedling stem at positions 50 + -1 cm, 40 + -1 cm, 30 + -1 cm and 20 + -1 cm from the root.
According to the preferred embodiment of the present invention, in S4, the rooting agent paste is prepared as follows: dissolving alpha-naphthylacetic acid with a small amount of ethanol, adding water to prepare 500ppm alpha-naphthylacetic acid solution, adding 0.8% water-soluble cellulose, stirring uniformly, adding a proper amount of talcum powder/calcium carbonate powder, and stirring into paste.
Preferably, the water-soluble cellulose is one or more of beta-glucan, guar gum, konjac gum and pectin.
The water-soluble cellulose is added in the paste preparation process, so that the effect of increasing the adhesiveness of the rooting agent paste is achieved, the paste can be better dried and adhered to the nursery stock stem, and can be dissolved and gradually lose the adhesiveness when meeting water, so that the paste is disintegrated, and the adverse effect (or the blocking effect) on the rooting and development of the nursery stock caused by the long-term adhesion of the paste to the nursery stock stem (the semi-ring cut wound) is avoided. The talcum powder/calcium carbonate powder in the paste is used in a small amount, and has no toxic or side effect on the rooting and growth of the nursery stock.
Preferably, the concentration of alpha-naphthylacetic acid in the rooting agent paste is about 300-500ppm by mass. Alpha-naphthylacetic acid can promote cell division and expansion quickly, induce to form adventitious root, regulate growth and promote rooting, and can raise the drought resistance, cold resistance, disease resistance, salt and alkali resistance and dry hot wind resistance of plant.
Preferably, the alpha-naphthylacetic acid can also be replaced by any one of indolebutyric acid (IAA) or rooting powder.
According to the preferred embodiment of the invention, in S5, digging pits in the forestation land, wherein the diameter of each pit is 15-20cm and the depth of each pit is 55-65cm, placing nursery stocks coated with rooting agent paste into the pits, backfilling soil into the pits to a certain depth, tamping again, and so on until the soil surface in the pits is 2-12cm lower than the soil surface outside the pits, and repairing fish scale pits.
Specifically, a pit digging machine is used for digging pits in selected sandy forestation lands, the depth of each pit is 60cm, nursery stocks coated with rooting agent pastes are placed in the pits, floating soil around the pits is backfilled into the pits to 30cm and then tamped, then soil is filled into the pits to 40cm and then tamped again (at the moment, water can be poured completely if conditions exist), soil is filled again to 50cm and then tamped, and the like until the soil surface in the pits is 4-8cm lower than the soil surface outside the pits, and the fish scale pits are built (at the moment, water can be poured completely if conditions exist). However, it should be noted that each irrigation should avoid the rooting agent paste being washed away in advance when the parts of the nursery stock stems coated with the rooting agent paste are washed away as much as possible.
(III) advantageous effects
The afforestation method has the advantages of high efficiency in the whole process, simplicity and convenience in operation, low cost and good practical application effect. Compared with the prior art, the invention has the beneficial effects that:
(1) The required materials are very common and convenient to collect;
(2) The whole process is simple and convenient to operate and low in cost;
(3) The prepared rooting agent paste has long action time, is instantly dissolved when meeting water (the paste on the seedling stem is disintegrated when meeting water), can avoid extreme drought seasons, and does not block the growth of new roots.
(4) The method can be applied to the super-deep planting and forestation of nursery stocks with longer trunks in large area, and greatly improves the rooting rate, survival rate and growth rate of the super-deep planting of the ulmus pumila in the arid sandy land.
(5) The popularization and the application of the method can greatly improve the afforestation effect of the arid desert ulmus pumila, have important significance for the desert control and the ecological environment construction, and can obtain considerable economic benefit.
Drawings
Fig. 1 is a schematic diagram of a preferred embodiment of semi-girdling of a seedling stem.
Fig. 2 is a schematic diagram of a preferred embodiment of ultra-deep planting and afforestation of nursery stocks.
Detailed Description
In order to better understand the above technical solution, exemplary embodiments of the present invention will be described in more detail below with reference to the accompanying drawings. While exemplary embodiments of the invention are shown in the drawings, it should be understood that the invention may be embodied in various forms and should not be limited to the embodiments set forth herein. Rather, these embodiments are provided so that this disclosure will be thorough and complete, and will fully convey the scope of the invention to those skilled in the art.
Referring to fig. 1 and fig. 2, a afforestation method for promoting rapid rooting of the stem of the super-deeply planted ulmus pumila in the dry sand land according to a preferred embodiment of the present invention comprises the following steps:
(1) Pruning stem lateral branches of the ulmus pumila: before spring germination, 1-2 year-old Ulmus pumila seedlings with the ground diameter of 1.0-1.5cm and the tree height of 1.5-2.0m are selected for lifting, trimming to remove lateral branches below 60cm of the seedlings, and heeling in the vicinity of the selected forestation land (sand land).
Temporary planting is a temporary protective measure before nursery stock is planted or outplanted. If the dug seedlings are not planted immediately, the dug seedlings are temporarily concentrated into bundles or are planted on small land free of wind damage, freeze damage and water accumulation so as to avoid water loss and withering and influence survival. The most important step of the nursery stock needing temporary planting is to remove a part of branches and leaves, reduce water transpiration and prolong the life of the plant.
(2) Soaking stem of ulmus pumila: and 2-3 days before afforestation, taking out the temporary planted nursery stock, putting the temporary planted nursery stock into a water tank, and injecting water until the water depth reaches the height of 55-65cm of the stem of the nursery stock, and soaking for 1-2 days. In particular, the amount of the solvent to be used,
the water tank is a soil pit dug on the ground, the depth is 60cm, and the area of the soil pit is suitable for containing all the seedlings to be heeled in. A whole piece of impermeable cloth (such as impermeable plastic cloth) is laid in the pit to prevent water from leaking out of the soil. Placing the temporary planting nursery stock in a soil pit obliquely, injecting water until the water depth reaches 60cm of the stem of the nursery stock, and soaking for 1-2 days.
(3) Semi-girdling of seedling stems: and (4) performing semi-girdling on the seedling stem, wherein the semi-girdling depth is just enough to cut through the bark. Specifically, referring to fig. 1:
semi-ring cutting is carried out on a plurality of positions of the seedling stem 10, such as positions 50 +/-1 cm, 40 +/-1 cm, 30 +/-1 cm and 20 +/-1 cm away from the root, by using a pruning shear or a knife to form semi-ring cut wounds 11, and adjacent two semi-ring cut wounds are staggered.
The semi-girdling means that the stems are regarded as cylinders, and the stems are girdled in a manner that about 1/2 of the circumference of the stems is semi-girdled. In practice there may be some tolerance in operation, not exactly 1/2 of a circle, in this application the semi-circle cut may be 1/3 or 3/5. In general, semi-circular cutting avoids "complete cutting" of the bark, and cannot be too short to root. The width of the half-girth cut is about 1-4mm.
Wherein, the way of forming dislocation of two adjacent semi-girdling wounds is shown in figure 1. The semi-ring at the position of 20 +/-1 cm is cut on the front side of the stem, the semi-ring at the position of 30 +/-1 cm is cut on the right side of the stem, the semi-ring at the position of 40 +/-1 cm is cut on the back side of the stem, and the semi-ring at the position of 50 +/-1 cm is cut on the left side of the stem. The purpose of forming dislocation is to make the roots growing out of the seedling stem disperse around the periphery of the seedling stem, and avoid the phenomenon that the growing root system is only concentrated on one side of the stem.
According to the method shown in fig. 1, 4 semi-girdling wounds are formed on each seedling stem, and the distance between every two adjacent semi-girdling wounds is 10cm.
(4) Applying a rooting agent paste to a wound: and (3) smearing the semi-girdling wound of the stem of the ulmus pumila by using a rooting agent paste, and airing until the rooting agent paste is adhered to the stem of the seedling without falling off.
Preferably, the rooting agent paste is prepared as follows: dissolving alpha-naphthylacetic acid with a small amount of ethanol, adding water to prepare 500ppm alpha-naphthylacetic acid solution, adding 0.8% water-soluble cellulose, stirring uniformly, adding a proper amount of talcum powder/calcium carbonate powder, and stirring into paste.
Preferably, the cellulose is viscous water-soluble cellulose such as one or more of water-soluble cellulose beta-glucan, guar gum, konjac gum and pectin. Preferably, the rooting agent paste is used, wherein the alpha-naphthylacetic acid accounts for 300-500ppm by mass.
(5) Ultra-deep planting and afforestation: as shown in fig. 2, a hole digging machine is used for digging holes in selected sandy forestation lands, the diameter of each hole is 15-20cm, the depth of each hole is 60cm (the root system of each seedling reaches deep soil, and the stem of each seedling is in shallow soil), the seedlings coated with the rooting agent paste are placed in the holes, floating soil around the holes is backfilled into the holes to 30cm and then tamped, then the holes are tamped again after the soil is backfilled to 40cm (at the moment, water can be poured if conditions exist), and the holes are tamped again to 50cm and then tamped; and filling soil for many times and tamping for many times in the same way until the soil surface in the pit is 4-8cm (preferably 5 cm) lower than the soil surface outside the pit, and repairing the fish scale pit (in the moment, watering can be carried out again if conditions exist). When irrigating, the water is prevented from directly irrigating the parts of the seedling stems coated with the rooting agent paste. The method of filling soil and tamping step by step is adopted, so that the seedling stems can be stably fixed in the planting pits, and the seedlings are prevented from being blown down by strong wind shaking.
The following are specific examples of the present invention.
Example 1
The embodiment is a forestation method for promoting rapid rooting of ulmus pumila stems planted in dry sand lands in an ultra-deep mode, and the method comprises the following steps:
(1) Pruning stem and side branches of the ulmus pumila: before spring germination, 1-year-old Ulmus pumila seedlings with the ground diameter of 1.0-1.5cm and the tree height of 1.5-2.0m are selected for lifting, trimming to remove lateral branches below 60cm of the seedlings, and heeling in the vicinity of the selected forestation land (sand land).
(2) Soaking the stem of the ulmus pumila: and 3 days before afforestation, digging a 60cm deep soil pit, wherein the length and the width of the soil pit are suitable for loading all the seedlings to be temporarily planted. A whole plastic cloth is laid in the pit to prevent water leakage. Taking out the temporary planting nursery stock, placing the temporary planting nursery stock in a pit in an inclined manner, injecting water until the stem of the nursery stock is 60cm, and maintaining the soaking for 2 days.
(3) And semi-girdling the seedling stem: semi-ring cutting is carried out on 4 positions of each seedling stem, wherein the distance between the 4 positions is 50cm, 40cm, 30cm, 20cm and the like from the root by using a knife to form semi-ring cutting wounds, the adjacent two semi-ring cutting wounds are staggered, the width of the semi-ring cutting is about 2mm, and the semi-ring cutting depth is just to cut through the tree bark.
(4) And applying a rooting agent paste to the wound: dissolving alpha-naphthylacetic acid with a small amount of ethanol, adding water to prepare 500ppm alpha-naphthylacetic acid solution, adding 0.8% guar gum water-soluble cellulose, stirring uniformly, adding a proper amount of talcum powder, and stirring to obtain paste. And (3) coating each semi-ring cut wound of the stem of the white elm with the paste, and airing until the paste is adhered to the seedling stem without falling off.
(5) And ultra-deep planting and forestation: using a pit digging machine to dig pits on selected sandy forestation lands, wherein the diameter is 20cm, the depth is 60cm, the nursery stocks coated with the rooting agent paste are placed in the pits, the floating soil around the pits is backfilled into the pits to 30cm and then tamped, then the pits are tamped again after being filled with soil to 40cm, the pits are filled with water and completely poured, the pits are tamped after being refilled with soil to 50cm and tamped for multiple times until the soil surface in the pits is 5cm lower than the soil surface outside the pits, and the fish scale pits are built and refilled with water.
And (3) planting 1-year-old ulmus pumila seedlings with the ground diameter of 1.0-1.5cm and the tree height of 1.5-2.0m according to a conventional method at the same time, but not carrying out the operations of (3) - (4), and finally directly carrying out ultra-deep planting and forestation on the seedlings soaked for 2 days.
The test investigation shows that by adopting the method of the embodiment 1 of the invention, the survival rate of the super deep planting afforestation of the dry sand elm reaches 95 percent (more than 45 percent higher than that of the conventional method), the rooting rate and the growth rate are improved by more than 15 percent compared with the nursery stock planted by the conventional method, and the nursery stock grows vigorously.
Finally, it should be noted that: the above embodiments are only used to illustrate the technical solution of the present invention, and not to limit the same; while the invention has been described in detail and with reference to the foregoing embodiments, it will be understood by those skilled in the art that: the technical solutions described in the foregoing embodiments may still be modified, or some or all of the technical features may be equivalently replaced; and the modifications or the substitutions do not make the essence of the corresponding technical solutions depart from the scope of the technical solutions of the embodiments of the present invention.
Claims (6)
1. A afforestation method for promoting rapid rooting of ultradeeply planted elm stems in arid sandy land is characterized by comprising the following steps:
s1, trimming stem lateral branches of the ulmus pumila: before germination in spring, selecting 1-2 year-old Ulmus davidiana planch seedlings with the ground diameter of 1.0-1.5cm and the tree height of 1.5-2.0m for lifting seedlings, cutting off lateral branches of the seedlings below 60cm, and performing temporary planting near a forestation land;
s2, soaking the stem of the ulmus pumila: 2-3 days before afforestation, taking out the temporary planted nursery stock of the S1, putting the temporary planted nursery stock into a water tank, and soaking the part with the height of 55-65cm of the stem of the nursery stock in water;
s3, semi-girdling of the seedling stems: performing semi-girdling on the seedling stem, wherein the semi-girdling depth is just to cut through the bark; when in semi-girdling, a plurality of parts of the seedling stem are semi-girdled by using a pruning shear or a knife, and the cut wounds of two adjacent semi-girdles are staggered;
when in semi-girdling, semi-girdling is carried out on the position of each seedling stem, which is 50 +/-1 cm, 40 +/-1 cm, 30 +/-1 cm and 20 +/-1 cm away from the root;
s4, coating a rooting agent paste on the wound: coating the semi-ring cutting wound of the stem of the white elm by using a rooting agent paste, and airing until the rooting agent paste is adhered to the stem of the seedling without falling off;
the rooting agent paste contains a rooting agent and water-soluble cellulose, and is regulated to be pasty by talcum powder/calcium carbonate powder;
the preparation method of the rooting agent paste comprises the following steps: dissolving alpha-naphthylacetic acid with a small amount of ethanol, adding water to prepare 500ppm alpha-naphthylacetic acid solution, adding 0.8% water-soluble cellulose, stirring uniformly, adding an appropriate amount of talcum powder/calcium carbonate powder, and stirring into paste;
s5, ultra-deep planting and forestation: digging a pit in the afforestation land, wherein the diameter of the pit is 20cm, the depth of the pit is 60cm, placing the nursery stock coated with the rooting agent paste into the pit, backfilling soil into the pit until the soil surface in the pit is 5cm lower than the soil surface outside the pit, and building the fish scale pit.
2. The afforestation method according to claim 1, wherein in S2, the water tank is a soil pit dug out on the ground, the depth of the soil pit is 55-65cm, and the area of the soil pit can be used for containing all the seedlings which are heeled in; and a whole piece of waterproof cloth is laid in the pit to prevent water leakage.
3. The afforestation method according to claim 1 or 2, wherein in S2, the temporary planted nursery stock is obliquely placed in a soil pit, and water is injected until the depth of the water reaches 60cm of the stem of the nursery stock, and the nursery stock is soaked for 1 to 2 days.
4. The afforestation method according to claim 1, wherein 4-5 semi-girdling wounds are formed on each seedling stem in S3, and the distance between every two adjacent semi-girdling wounds is 8-12cm.
5. The afforestation method according to claim 1, wherein the water-soluble cellulose is one or more of β -glucan, guar gum, konjac gum and pectin.
6. The afforestation method according to claim 1, wherein in S5, a pit is dug in an afforestation site, the diameter of the pit is 20cm, the depth of the pit is 60cm, the nursery stock coated with the rooting agent paste is placed in the pit, soil is tamped after being backfilled to a certain depth in the pit, the soil is tamped again after being backfilled to a certain depth in the pit, and so on until the soil surface in the pit is 5cm lower than the soil surface outside the pit, and the scale pit is built.
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|---|---|---|---|---|
| CN101632341B (en) * | 2008-07-23 | 2011-08-10 | 松原职业技术学院 | Method for non-polluted cultivation of amur ampelopsis stems |
| CN101731118B (en) * | 2008-11-15 | 2012-06-06 | 棕榈园林股份有限公司 | Container seedling culture method of large nursery stocks |
| CN103262775B (en) * | 2013-04-24 | 2015-01-07 | 北京正和恒基滨水生态环境治理股份有限公司 | Method for planting trees in desert environment |
| CN103621337A (en) * | 2013-10-27 | 2014-03-12 | 大连东芳果菜专业合作社 | Layering seedling culturing strong rooting girdling technology method for tree varieties with difficult rooting |
| CN103628460A (en) * | 2013-12-04 | 2014-03-12 | 甘肃省治沙研究所 | Desertificated land treatment method for windy and sandy area in arid desert |
| CN105010311B (en) * | 2015-07-29 | 2017-05-31 | 河北省林业科学研究院 | A kind of compound seedling root NMF and preparation method thereof |
| CN106561381A (en) * | 2016-10-27 | 2017-04-19 | 新疆金润绿原科技开发有限责任公司 | Method for cultivating ornamental model trees |
| CN106577165A (en) * | 2016-12-01 | 2017-04-26 | 王建新 | Method for carrying out desert afforestation through longstalck peaches |
| CN107494185A (en) * | 2017-07-25 | 2017-12-22 | 武汉法雅园林集团有限公司 | A kind of arid area nursery stock transplanting method |
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