49 results about "Coastal plain" patented technology

The invention discloses a tree planting method and a tree planting structure in a coastal saline and alkaline area. The tree planting method comprises the steps of building a cofferdam, arranging a lifting layer, carrying out salt pressing and alkali discharging on the lifting layer, digging planting holes, paving waterproof geotechnical cloth, paving a broken stone water filter layer, paving a straw curtain water filter layer, backfilling planting soil and planting trees. According to the tree planting method disclosed by the invention, after the steps and measures are comprehensively adopted, the salt returning period of saline and alkali soil can be slowed down, good conditions are created for the surviving and the growth of the trees due to the soil fertility of the planting soil, and a greenery landscape can be easily formed after the trees are planted; since the terrain is lifted, saline and alkaline original soil is relatively reduced, alkali discharging pipes are not needed to be paved in specific construction, the period of salt discharging and alkali controlling is reduced, and the cost is reduced. The tree planting method and the tree planting structure, disclosed by the invention, are suitable for being popularized and applied in a greening process of the coastal saline and alkaline area.

The invention discloses a construction technique for water plant system of scenic water in coastal saline-alkali area. The method aims at the characteristics such as high salt content in the soil and the water in scenic riverways in coastal saline-alkali area and utilizes highly saline reuse water washing salinity technique and salt-proof techniques such as raw soil mixed with sand and salt discharge subdrain, etc. to reduce the salt content of the soil and water of the riverway. Meanwhile, in respects of increasing the ornamental performance and strengthening the purificatory function, water pioneer plants and land pioneer plants suitable for the ecological restoration of the scenic riverways in coastal saline-alkali area are selected preferably, and are subject to domestication and optimal distribution, thus the water plant system of scenic water in coastal saline-alkali area is successfully constructed, thereby improving the environmental scenery effectively and restoring the quality of the water gradually.

The invention relates to a method for planting poplar trees in coastal saline-alkali soil, which comprises the following steps of: filling earth; digging and processing plant pits; improving earth for refilling the plant pits; selecting quality of tree stock; planting; building a cofferdam; and watering and nursing, wherein in the step of filling the earth, the whole or local terrain is lifted, and the highest underground water level is controlled to be below 1.5m; in the step of digging and processing the plant pits, the plant pits in large specification are dug, and a salt isolating and water pouring layer with the thickness of 0.1 to 0.3m is laid at the bottom of each plant pit; and in the step of improving the earth for refilling the plant pits, the salt content of the earth for refilling the plant pits is less than 0.5 percent, the pH is between 6.5 and 8.5, and the soil is powdery or granular and is mixed with a soil structure improver and an organic fertilizer. The method has the advantages of high operability and low implementation cost, and can effectively prevent the earth in the plant pits from returning salt, being alkalified and accumulating salt. Demonstration application proves that the survival rate of the planted polar trees is over 95 percent; moreover, the poplar trees grow vigorously and have a few plant diseases and insect pests in a later period, and have good landscape greening ecological effect.

The invention relates to a method for cultivating peonies on coastal saline and alkaline land. The method includes the following steps of land preparation, planting hole digging, field planting, water draining, watering and culture and management. The survival rate of the peonies cultivated through the method reaches 96.7%-97.8%, peony color is bright, the ornamental value is high, it is made possible that the peonies can be massively planted on the coastal saline and alkaline land, the gaps for introducing the peonies in a Tianjin Binhai new area are filled in, the variety of greening plants in a coastal region is enriched, and the city greening landscape effect is greatly improved.

The invention discloses a saline and alkaline land improvement method adopting compound waste, and relates to the technical field of saline and alkaline land improvement. The method comprises the following steps that S1, a desulfurized gypsum improvement agent is uniformly thrown to the surface of to-be-improved coastal saline and alkaline land, wherein the application amount of the desulfurized gypsum improvement agent is 1,800-2,000 kg / mu; S2, the coastal saline and alkaline land is subjected to rotary tillage by 15-20 centimeters; S3, after rotary tillage, the coastal saline and alkaline land is deeply ploughed by 30-40 centimeters; S4, the desulfurized gypsum improvement agent is uniformly thrown to the surface of the saline and alkaline land again, wherein the application amount of the desulfurized gypsum improvement agent is 1,800-2,000 kg / mu; S5, the saline and alkaline land is subjected to rotary tillage by 15-20 centimeters again; S6, after 1-2 months, land irrigation, salt leaching and alkali discharging are conducted. The saline and alkaline land improvement method adopting the compound waste has the advantages that industrial waste such as desulfurized gypsum and iron and steel slag is utilized, the improvement cost is reduced, and the salinity in soil and the pH value of the soil are reduced.

The invention provides a method for increasing the afforestation survival rate of quick growing tree species in a coastal saline-alkali land through catchment, salt leaching and water retention. The method comprises the steps of platform field building, wherein earth cutting and bed hedgehopping are performed on a section to be afforested to form an east-to-west platform field and a drainage ditch before a rainy season in the first afforestation year, the length of the platform field is 50-100 m, the width of the platform field is 20-50 m, the platform field is 1-1.5 m higher than the ground surface, the drainage ditch is 1-1.5 m lower than the ground surface, a cofferdam is built at the periphery of the platform field, the height of the cofferdam is 0.8-1.2 m, and the width of the cofferdam is 0.5-1.0 m. The method has the advantages that due to the fact that the platform field is small and convenient to construct, the soil salt content can be quickly decreased in half a year to one year through catchment, and the salt leaching speed is high; through comprehensive film mulching, soil moisture evaporation can be effectively reduced, salt content increasing can be prevented, and it is guaranteed that leached salt cannot rise to the ground surface layer; meanwhile, water can be retained, weed growing can be inhibited, the survival effect on black poplar, willow and elm seedlings which are poor in salt tolerance and high in water requirement is significant, and the problem that afforestation of black poplar, willow and elm trees is difficult in a saline-alkali area can be significantly solved.

The invention provides a method for ecologically greening coastal saline and alkaline land, which is characterized by comprising the following steps: seeds of syzygium odoratum (Lour.) DC. which has the characteristics of saline and alkaline resistance, water and humidity resistance, fast growth rate, luxuriant foliage, beautiful shape and attractive flowers and fruit are sowed for propagation, after seedlings are 30cm high, the seedlings are transplanted into planting bags with a certain salt matrix and conventionally managed in a seedling nursery, and the syzygium odoratum (Lour.) DC. of two years old is moved out of the seedling nursery to be directly applied to greening the saline and alkaline land and managed by adopting the conventional garden technology, wherein the syzygium odoratum (Lour.) DC. of three years old has the height of over 2m and the crown size of 1m*1m, is green all year round, has red fresh leaves and creates the beautiful landscape. The syzygium odoratum (Lour.) DC. has very good application prospects in coastal saline and alkaline land and coastal beaches in the southern part of China.

The invention relates to an improvement method for underground soil of urban street trees on a coastal saline and alkaline land region, mainly aiming at the improvement of an underground salt elimination system and street tree root growth spaces of a street tree region which is built for many years. The method comprises the following steps that (1) sidewalk saline soil, concrete and sidewalk pavement on the outer sides of the street tree region are removed, and original saline soil is replaced with soil dressing; (2) a dn60PVC (polyvinyl chloride) vent pipe is paved in a plant root system concentrated distribution layer, the paving mode is a horizontal wave mode, two ends of the vent pipe penetrate through the original street trees by a certain angle, the two ends are 2-3cm higher than a greenbelt, a dn60PVC leaky pipe is deeply paved in the original street tree leached layer, non-woven fabric is used for coating the outer side of the leaky pipe, and the leaky pipe is connected with a salt elimination inspection well of the underground salt elimination system of the original street tree region. By using the improvement method, the growth and sustainable development of the street trees can be guaranteed, and the ecological benefits of the street trees can be fully exerted.

The invention relates to a method for planting impatiens wallerana in a coastal saline-alkali land. The method comprises the following steps of land preparing, soil improving, planting, water controlling and fertilizer adding. The soil improving step comprises the processes that saline-alkali soil is doped with river sand, grass carbon and decomposed cow dung, the soil, the river sand, the grass carbon and the decomposed cow dung are proportioned according to the ratio of 2 to 2 to 1 to 1, the land is ploughed and dug, and the ploughing and digging depth is 20-30 cm, so that the soil is sufficiently mixed with the river sand, the grass carbon and the decomposed cow dung to be uniform, and then the land is leveled; sampling is conducted, the pH value of the soil is determined, when the pH value of the soil is still larger than 8, ferrous sulfate needs to be applied to the soil, ferrous sulfate is mixed with water for spraying according to the amount that when the pH value is decreased by one, 130 g of ferrous sulfate needs to be applied to per square meter of the soil, and when the pH value of the soil is smaller than or equal to 8, ferrous sulfate does not need to be applied. By using the method for planting the impatiens wallerana in the coastal saline-alkali land, the survival rate of the impatiens wallerana can be greatly increased, and the flowering time and the turf grass growing time are shortened; when the method is used for planting the impatiens wallerana, flowering can be achieved after 15 days, the best landscape effect can be achieved after 20 days, and the survival rate reaches 95% or above.

The invention belongs to the technical field of tree transplantation, and particularly relates to a method for transplanting large-specification woody plants in coastal saline-alkali soil. The methodcomprises the following steps: (1) preparing a planting pit with a diameter larger than the diameter of the soil ball of the root of a tree to be transplanted; (2) mixing a base fertilizer and pond mud and filling the bottom of the planting pit with the mixture before fertilizing and filed planting are carried out, and then covering the surface with pond mud; (3) carrying out transplanting, supporting the transplanted tree upright, and then carrying out fixing by adopting a wind resistant conjoined support frame; and (4) carrying out management after the transplantation, and carrying out foliage topdressing on the trees subjected to the harm of typhoon and rainstorm by using a nitrogen fertilizer.

The invention provides a coastal saline-alkali soil improvement method, an improved coastal saline-alkali soil structure and an application, and relates to the technical field of saline-alkali soil improvement and restoration. According to the coastal saline-alkali soil improvement method, a concealed pipe drainage layer, an isolation layer and a cultivation layer are arranged in a coastal saline-alkali soil layer, so that rapid desalination of coastal saline-alkali soil can be realized, salt return can be prevented at the same time, the structure and fertility of the soil structure of a tillage layer also can be improved, and effective utilization of water resources is realized. Practice shows that the soil condition of the saline-alkali soil can be gradually improved through the adoptionof the coastal saline-alkali soil improvement method, and the saline-alkali soil can be used for planting common crops after 3-5 years of improvement. The invention further provides the improved coastal saline-alkali soil structure, and the improved coastal saline-alkali soil structure comprises the concealed pipe drainage layer, the isolation layer and the cultivation layer. The invention further provides an application of the coastal saline-alkali soil improvement method or the improved coastal saline-alkali soil structure in the field of saline-alkali soil treatment and restoration.

The invention relates to a technical field of saline-alkaline land improvement, in particular to a comprehensive treatment method for coastal saline-alkali land. The method comprises the following steps that 1, soil ploughing is conducted to obtain loosened soil, a mixture of sulfur and biomass charcoal is added into the loosened soil and mixed evenly, soil ploughing is conducted again, and the soil is kept for 10-30 days; 2, microbial fermentation pond sludge is added into the soil, soil ploughing is conducted, and the soil is kept for 10-30 days; 3, organic fertilizer is applied, and soil ploughing is conducted. By means of the method, the soil structure can be improved, the water holding capacity and water permeability of surface soil are improved, the downward migration of salt is promoted, and the desalination rate is increased; the content of organic matter in the soil is increased, so that crops obtain comprehensive nutrients in the whole growth process; the pH value and ESP value of the soil are obviously reduced, the pH value and ESP value of the heavy saline-alkaline soil can be reduced quickly, a dealkalization and desalination effect is achieved within a short period, and the normal growth of the crops can be promoted; raw materials are waste materials and are re-utilized, the input cost is low, and the method is environmentally friendly.

The invention relates to the technical field of saline-alkali soil improvement, and provides a coastal saline-alkali soil improvement technology. According to the method, fresh water is subjected to salt leaching, land is ploughed, the land is irrigated with a water-soluble compound fertilizer, the land is aired and stands still, an ammonium bicarbonate compound fertilizer and a potassium sulfatecompound fertilizer bacterial fertilizer are dissolved in water, and a composite microbial agent and human and animal manure are evenly mixed and applied to to-be-improved saline-alkali soil accordingto a certain weight, so that the aims of reducing the soil alkalinity, improving organic matter and being more beneficial to crop planting can be achieved.

The invention belongs to the field of crop planting and in particular relates to a method for planting winter wheat in a coastal saline cultivated land. The method comprises the following steps: preparing before seeding, seeding and performing field management, wherein the step of preparing before seeding comprises soil moisture water irrigation; the step of seeding comprises seeding on two sides of micro ridges; the step of performing field management comprises overwintering water irrigation and green returning and jointing water irrigation; the step of seeding on two sides of micro ridges is performed in autumn when the daily average temperature is about 18-20 DEG C; the ridge back height is 8-12cm, preferably 10cm; the ridge back width is 13-17cm, preferably 15cm; the furrow width is 8-12cm, preferably 10cm; the seeding amount guarantees that the quantity of basic seedlings is 350000-380000 plants per mu. The method is suitable for winter wheat planting areas in the coastal saline cultivated land, stable and high yield of wheat can be promoted, and yield of wheat grains can stably reach 400-500kg per mu when the wheat is planted in medium / light saline cultivated lands.

The invention relates to the field of improvement technologies and ecological remediation of saline-alkaline land, in particular to a method for ecological re-greening of coastal saline-alkaline sandby using salt-tolerant plants. A saline-alkaline isolation layer consists of broken brick residues or miscellaneous fill and coarse sea sand, loose large-porous structures formed by the miscellaneousfill and the broken brick residues in constructional engineering can effectively block salt in lower layers from returning to the surface layer of soil along with water under the capillarity action, infiltration discharge of salt on the upper layer can be dredged, construction waste can be used, and the construction cost can be saved; a salt reverse osmosis layer can effectively block root systemsof the plants from penetrating the isolation layer, prevent the root systems from being affected by salt damage and prevent reverse osmosis of salt of the isolation layer; the arrangement principle of a saline-alkaline sand improvement layer lies in that physical and chemical properties of the saline-alkaline sand are improved, and effects of soil looseness and breathability, water retention, sufficient fertility and proper pH can be realized by cooperation with mushroom soil. The technical scheme has active and significant effects on ecological re-greening of the coastal saline-alkaline sandand is suitable for promotion on a large scale.

The invention discloses a greening method for coastal saline-alkali land after soil improvement. The formula of improved coastal saline-alkali soil includes the original soil, 35% of hill-skill sand,20% of corn straw, 1.2% of desulfurized gypsum, 30kg of an organic fertilizer and 20kg of peat. Tree holes with the depth of 1m and the diameter of 1.2m are dug, a salt barrier layer is arranged around each tree hole, the bottom of the tree holes is buried with blind holes which are communicated with three tree holes, and there are a stone chip leaching layer with the height being 10cm, a fillinglayer with the height being 70cm and an irrigation layer with the height being 20cm in sequence on the blind pipes. The irrigation of the tree holes takes tap water as a water source and adopts a quantitative and intermittent irrigation mode, 200kg of tap water is irrigated into the tree holes once a day, and the irrigation is stopped after 7 days. The greening method determines the saline-alkalisoil improvement formula in allusion to main physical and chemical properties and soil structure of the river saline-alkali soil, and provides technical support and engineering experience for greeningthe river saline-alkali land.

The invention discloses an agricultural and fishery comprehensive utilization method of rice field-pond for a coastal saline-alkali land. The method includes the following steps: laying out an agricultural and fishery comprehensive planting and breeding area for the rice field-pond in the coastal saline-alkali land, wherein according to the flow direction, the area comprises intake channels, ricefield, drains, reservoirs and ponds successively; and then after plowing, salt washing and topdressing, conducting rice cultivation and aquaculture. The method combines fisheries and planting with management and cultivation of the saline-alkali land; the soil salinity falls by 65%-85% from 13.7 g / kg to 2.0-4.8 g / kg, reaching the standard of crop planting; rice yield per mu reaches 500 kg / mu or more; the yield of whiteleg shrimps reaches 240 kg or above; and the method solves the outlet problem for saline-alkali water during saline-alkali land management, improves resource utilization of the saline-alkali land, and in the meantime produces good economic benefits.

The invention relates to a coastal plain area municipal road roadbed waterproof isolation protection structure and a construction method. Sealing ditches are built on two sides of a roadbed; each sealing ditch is excavated to a certain depth below a underground impermeable soil layer; and sealing films are laid at bottoms of the sealing ditches and on side slopes, and the sealing ditches are filled with limestone soil so that the roadbed is isolated from peripheral permeable soil, underground water is prevented from invading the roadbed to damage a pavement structure, and various diseases suchas pavement collapse and cracking caused by underground water erosion can be reduced.

The invention relates to a fertilizer special for sweet potato planted in a coastal saline and alkaline land. Available nutrients in the special fertilizer are nitrogen, phosphorus and potassium. The fertilizer is characterized by being prepared by mixing inorganic substances containing nitrogen, phosphorus and potassium, wherein in the special fertilizer, the effective content of N is 12 percent, the effective content of P2O5 is 16 percent, the effective content of K2O is 12 percent, and the mass ratio of N to P2O5 to K2O is 3:4:3. The fertilizer as a base fertilizer is applied at one time, and the application amount per acre is 40-50 kilograms.

The invention provides a soil conditioner for coastal saline-alkali land and a using method of the soil conditioner. The soil conditioner for the coastal saline-alkali land comprises the following rawmaterials in parts by weight: 20-35 parts of desulfurized gypsum, 10-15 parts of sulfur, 15-25 parts of humic acid, 5-15 parts of fermented pine needle leaves, 0.2-1 part of a composite microbial agent and 5-10 parts of a carbon source. The soil conditioner of the coastal saline-alkali land and the using method of the soil conditioner have the advantages of low cost, simple construction, environmental friendliness and good effect of reducing the salinity and alkalinity of the soil.

The invention provides a coastal saline-alkali soil ecological improvement system. The system comprises an ecological regulation pond, a culture pond, a platform field, an alkali discharge ditch and a shallow groundwater extraction system, the ecological regulation pond and the alkali discharge ditch are connected with the alkali discharge ditch and a river through ditches, the ecological regulation pond performs rainy season fresh water accumulation and individual rainy year water draining, and the culture pond performs underground water or fresh water supplementing and aquaculture. The platform field is paved with different kinds of straw according to different distances with the pond, the shallow groundwater extraction system provides power by means of blending of wind energy and solar energy to extract shallow groundwater continuously day and night. The invention further provides a matched high-yield cotton planting method. Accordingly, adversity stress of saline-alkali, drought and water logging of coastal saline-alkali soil is significantly changed, and normal growth and development of cotton are promoted; meanwhile, the pest and disease damage is significantly lowered, management is conducted more conveniently, the cotton yield is significantly increased, the cotton quality is significantly improved, and the cotton planting earnings of farmers are directly increased.

The invention discloses a large-scale ecological culture method of hairy crabs from the yellow river estuary based on ponds on a coastal saline-alkali land. The method includes the following steps that 1, high-quality larval crabs are selected, and the quality of larval crabs to be bred outside is ensured; 2, the larval crabs are put in the ponds in advance, and the growing period is prolonged; 3, the stocking density is controlled, and large-size larval crabs are put in the ponds; 4, aquatic plants are planted, and an ecological environment is simulated; 5, the water quality is regulated, and the healthy growth of the hairy crabs is promoted; 6, high-quality bait is poured to meet the nutritional needs of hairy crab growth and needs of hairy crabs for bioactive substances; 7, molt-period management is well done, and the survival rate of the hairy crabs is improved; 8, ecological disease prevention is well done, and pollution-free agricultural products and organic food are produced; 9, daily inspection is well done to know the hairy crab breeding state in time; 10, scientific catching is conducted at the right moment so as to meet the market demand. According to the method, the size of the adult hairy crabs from the yellow river estuary is increased by 92% or above, the yield per mu is improved by 58% or above, and the proportions of liver, muscle and gonad to the body weight are each improved by more than 10%.

The invention discloses a method for improving fertility of coastal saline-alkali soil in East China by utilizing seashore paspalum, and relates to the field of ecological treatment of heavy saline-alkali land. The method utilizes salt-tolerant turfgrass and selects the seashore paspalum for high-efficiency rapid improvement of the coastal saline-alkali land; and the method comprises the followingsteps: (1) preparation of the saline-alkali soil; (2) planting of salt-tolerant turf; and (3) maintenance management. The method provided by the invention has the following advantages and positive effects: 1, the selected salt-tolerant seashore paspalum can efficiently and rapidly improve the saline-alkali land; 2, the turf is spread and planted in a rainy season of which the soil content is relatively low, so that vegetations can be quickly established, moisture evaporation of the soil can be inhibited, raising of the salt content of the soil is controlled, and the purpose of improving the soil in the saline-alkaline land is achieved; and 3, the selected seashore paspalum is a salt-tolerant herbaceous plant selected by a laboratory for a plurality of years, and suitable for the ecological recovery of the saline-alkali land, and especially facilitates stability of an ecological system of the saline-alkali land.

The invention relates to a prevention and treatment method of gummosis of mountain peach in coastal saline-alkaline land. The method includes following steps: 1), spraying insecticide three days before transplanting the mountain peach; 2), preparing base fertilizer and high-breathability cultivation soil 4-5 days before transplanting, and disinfecting to obtain cultivation soil; 3), transplanting, root irrigating rooting powder, and performing infusion; (4), pruning away deadwood and diseased branches, disinfecting, and applying a preventive agent; 5), cleaning an orchard in winter, and taking cold-resistant measures. The method is used for preventing and treating gummosis of the mountain peach in the coastal saline-alkaline land, and specific prevention and treatment measures are provided according to various factors causing gummosis of the mountain peach. By the method, the physiological defect in growing of the mountain peach in Tianjin coastal saline-alkaline land is overcome, plant diseases and insect pests are prevented to generate drug resistance to the agent, gummosis of the mountain peach is prevented and treated comprehensively and effectively, and survival rate and ornamental value of the mountain peach are increased.

The invention relates to a method for planting Stachys lanata in coastal saline-alkali soil. The method comprises the following steps: 1) a rainproof layer and a plastic film are laid to inhibit upward movement and lateral invasion of groundwater salt; 2) base fertilizer and weak-acidity culture soil are prepared; 3) seedlings are lifted and planted; 4) fertilizer and water management is performed; 5) overwintering protection and management are performed. The method is used for planting the Stachys lanata in the coastal saline-alkali soil, the physical defects about growth of the Stachys lanata in the coastal saline-alkali soil are overcome, the saline-alkali soil structure is improved effectively, the pH value of the soil is reduced, and the survival rate and the ornamental value of the Stachys lanata are increased.

The invention discloses a larval crab hoarding breeding method of hairy crab pond culture in Yellow River Estuary based on coastal saline, the technical scheme comprises seven key steps, namely: (1) alarval crab hoarding breeding area is constructed; (2) water plants are planted; (3) larval crabs are selected; (4) the larval crabs are stocked; (5) the larval crabs are processed before put in; (6)water lever is adjusted; and (7) bait is thrown and fed. The larval crab hoarding breeding method of hairy crab pond culture in Yellow River Estuary based on coastal saline by improving an enclosed form of a pond and strengthening details of larval crab hoarding breeding, not only efficiently provides a good ecological environment for the early normal growth of water plants on a central platform,the pond is built once, has benefits for many years, but also ensures that the larval crabs grow healthily, safely and rapidly.

The invention relates to the technical field of soil improvement, in particular to a cultivation method of coastal saline-alkaline land ecological greening vegetation. The vegetation is simple in structure and reasonable in design, has practical significance and popularization value and is expected to generate good economic benefit. The cultivation method includes following steps: selecting a coastal saline-alkaline land to-be-treated parcel, deeply ploughing the to-be-treated parcel, removing saline-alkaline soil turned out by deep ploughing, arranging an oyster shell layer not lower than 20cm in vertical height at the bottom of the to-be-treated parcel, laying salt-alkali pipes above the oyster shell layer, and selecting borrowed soil of normal soil of non-saline-alkaline land for backfilling; planting bamboo-willow at the edge of the coastal saline-alkaline land to-be-treated parcel, and planting festuca arundinacea at the edge of the coastal saline-alkaline land to-be-treated parcel, wherein distance of adjacent bamboo-willow is not smaller than 1.4m, planting width of festuca arundinacea is not lower than 1m, ridges are arranged on the outer side of festuca arundinacea, and awaterproof film mulching layer is arranged on the surface of each ridge.

The invention provides a method for carrying out original-soil greening on a coastal saline-alkaline land by adopting high-water-storage nutritional soil. The method comprises an original-soil treatment step, wherein the original-soil treatment step comprises the step of applying the nutritional soil, and the nutritional soil contains the following ingredients: yellow mud, peat soil, a nitrogen-potassium-phosphate compound fertilizer, natural stellerite powder, a serenoa repens extract, instantly-dissolved sodium silicate, dry bamboo shoot peel powder, bagasse, oil meal, Chinese wax gourd peel pulp, hairtail powder, well-composted rabbit manure, a water retention agent and trace elements. The invention further provides a preparation method for the nutritional soil. According to the planting method provided by the invention, the expense for transporting imported soil is saved, the cost is reduced, and the expense is saved by 37%; the method plays roles in lowering the soil seepage coefficient and increasing the moisture content of the soil; and the content of niacin in fruits of planted narrow-leaved oleaster is 2.1mg / 100g to 3.2mg / 100g.

The invention provides a method for carrying out original-soil greening on coastal saline-alkaline land by adopting crocodile bone meal containing nutritional soil. The method comprises a land selection step, wherein the land selection step comprises the step of applying the nutritional soil, and the nutritional soil contains the following ingredients: peat soil, peat, a nitrogen-potassium-phosphate compound fertilizer, paddy straw powder, kaolin, a bitter melon extract, butanedioic acid, sawdust, caster bean dregs, chopped arillus longan, crocodile bone meal, well-composted goose feces, a water retention agent and micro-elements. The invention further provides a preparation method for the nutritional soil. According to the planting method provided by the invention, the expense for transporting imported soil is saved, the cost is reduced, and the expense is saved by 42%; the method plays roles in lowering the porosity of soil, amending the saline-alkaline land and lowering a hydrogen ion concentration index; and the leaf transpiration rate of planted Populus simonii is lowered to be 3.6 to 6.2 mu mole / (m<2>.s).

The invention relates to a fertilizing method for saponaria officinalis in coastal saline-alkali soil. The method comprises the following steps: digging dressing furrows, and filling and leveling the dressing furrows up after applying fertilizers before the flowering stage every year in the areas where the saponaria officinalis is planted for three years or more. The fertilizing method for the saponaria officinalis of the coastal saline-alkali soil solves the problem that the saponaria officinalis is hard to fertilize, the operation is simple, the landscape effect can be basically recovered two to five days after fertilization, and the soil surface can be covered by vegetation within thirty days.