100results about How to "Fully supplemented" patented technology

The present invention belongs to the technical field of tree transplanting and maintaining, specifically an integrated device for landscape tree / seedling maintaining. The device includes an aboveground device and an underground device, wherein the underground device contains a U-shaped permeating pipe and an underground water storage device. The U-shaped permeating pipe is buried close to the location of the root system of the landscape trees / seedlings with one end of the U-shaped permeating pipe connected to the buried underground water storage device and the other end of the U-shaped permeating pipe stretching out of the ground. The aboveground device contains an infiltrating and irrigating bag and a three-way pipe, wherein the infiltrating and irrigating bag covers the base part of a tree trunk and is connected with the other end of the U-shaped permeating pipe by the three-way pipe. The landscape tree / seedling maintaining integrated device has various maintaining functions such as supplying water and medicine, preserving moisture and temperature, preventing transpiration of branches and trunks, supplementing the root system with water, draining off water for ventilation, and automatically accumulating rainwater.

The invention relates to a nutrient solution for improving the transplanting survival rate of trees. The nutrient solution comprises the following components in parts by weight: 0.2-0.4 part of calcium nitrate tetrahydrate, 0.03-0.05 part of ferrous sulfate heptahydrate, 0.0001-0.0003 part of ferric citrate, 0.03-0.05 part of monopotassium phosphate, 0.07-0.09 part of ethylene diamine tetraacetic acid disodium, 0.04-0.06 part of anhydrous cupric sulfate, 0.12-0.15 part of magnesium sulfate heptahydrate, 0.0005-0.0009 part of potassium chloride, 0.002-0.004 part of ammonium molybdate, 0.012-0.014 part of ammonium sulfate, 0.0025-0.0029 part of boric acid, 0.0012-0.0015 part of indolebutyric acid and 1000-1050 parts of water. The invention aims at providing the nutrient solution which can be used for rapidly and comprehensively replenishing nutrients for various trees, motivating the activities of the trees, promoting rapid development of root systems and further improving the transplanting survival rate of the trees.

The invention discloses a production process of an insulation pull rod. The production process comprises an insulation pipe blank pipe curing and molding phase, an insulation pipe blank pipe machining phase and a connector bonding phase, wherein in the insulation pipe blank pipe curing and molding phase, fiber materials are dried in vacuum; resin is impregnated under a vacuum environment and the fiber materials are subjected to primary curing; after de-molding, the fiber materials are subjected to secondary curing to obtain an insulation pipe blank pipe; the insulation pipe blank pipe is machined; the insulation pipe blank pipe is bonded with a connector by adopting a heat-expansion and cold-contraction principle; and finally, the insulation pull rod is obtained. According to the production process of the insulation pull rod, the technical defects of a production process of the insulation pull rod that air gaps, micro-cracks, concentrated stress and layering are easy to generate, the connection of the connector is not reliable, the air gaps are easy to generate in a bonding layer of the connector and the insulation pipe and the like are overcome.

The invention relates to a drink which contains agaric and ginseng. The drink is characterized in that the drink is composed of the following ingredients (by weight part); agaric 20-35, ginseng 1-2.5, oat 35-45, honey 10-25, spirulina 5-15 and concentrated juice 300-3000. The invention is effective in preventing the 'three highs', namely, high blood pressure, high fat content and high levels of blood lipids. Moreover, the invention has the efficacies of removing waste out of stomach and intestine, fighting thrombosis, resisting radiation, countering tumor and keeping people strong, young and healthy.

The invention discloses a burner of an inner flame gas stove, which consists of a burner body and a fire distributer device; an upper layer fire hole and a lower layer fire hole are arranged on the fire distributer device and the direction of the outlets of the fire holes is inward, and an air channel is arranged or not arranged between the upper layer fire hole and the lower layer fire hole; a single inner cavity or two independent inner cavities is or are arranged; the two independent inner cavities are arranged so that the flame at the upper layer and the lower layer can be regulated independently; while the air channel is arranged so that the air supplementation can be more abundant. The burner utilizes multiple-layer fire holes, stratified combustion and multiple-layer cyclonic flame, and has the advantages of large heat flow, fierce fire power, high heat efficiency, low-CO and low-NOx in smoke gas, no fire hole blocking and the like.

The invention discloses a cultivation method of mulberries. The cultivation method comprises following steps: firstly, putting and soaking dried seeds into a potassium permanganate solution till the seeds appear white by forcing of germination; secondly, reclaiming and furrowing a nursery garden and applying base fertilizers, scattering the seeds on a furrowed surface, and covering the furrowed surface with plant ash and straws; thirdly, watering, loosening the soil and weeding during management of mulberries in order to keep the soil wet and loosened without weeds; fourthly, transplanting mulberries to the transplanted position and spraying water to mulberries after transplantation. Each year, the soil is kept loosened without weeds by loosening the soil and weeding around mulberries. Roots of mulberries are applied with boric fertilizers during pest control over mulberries and applied with bio-organic fertilizers. The relation between application amount of bio-organic fertilizers in each month and time is illustrated that y is equal to x plus (4 to 7), wherein y denotes the application amount of bio-organic fertilizers in each month with the unit of kilogram / tree and x, ranged from 1 to 12, denotes the number of mouths starting from the first month at which saplings sprout new leaves.The cultivation method of mulberries helps to effectively raise output of mulberry fruits and mulberry leaves of mulberries.

The invention relates to a method for matching low-speed pouring of an ultra-thick plate blank with consumption of continuous casting powder and belongs to the technical field of continuous casting powder of a steelmaking continuous casting crystallizer. The method comprises the following steps: by aiming at the carbon content of 0.15-0.2wt% in the medium carbon steel made of a 400mm ultra-thick plate blank, controlling the content of SiO2 in the continuous casting powder within a range of 28-34wt%, controlling the content of CaO within a range of 35-40wt%, controlling the content of Al2O3 within a range of 3.5-4wt%, controlling the alkalinity within a range of 1.25-1.26, controlling the viscosity within a range of 1.4-1.5 Poise, controlling the content of carbon within a range of 7.5-8wt% and controlling the melting point within a range of 1100-1130 DEG C, thereby being beneficial to increasing the consumption of the continuous casting powder; and meanwhile, according to practical production requirements, when a pouring speed of a plate blank is 0.7m / min, controlling the vibration frequency within a range of 145-155cpm, controlling the vibration amplitude within a range of 4.5-5.0mm and controlling the negative slip time within a range of 0.09-0.12s, thereby acquiring the consumption of continuous casting powder being 0.55-0.60kg / m<2> and the actual measured melt cinder thickness being 10-13mm. The method provided by the invention has the advantage that the balance between the consumption of continuous casting powder and the melting speed is effectively controlled.

The invention discloses a culture medium for pleurotus eryngii strain cultivation. The culture medium is prepared from, by weight, 20-60 parts of potatoes, 10-30 parts of bran, 2-8 parts of glucose, 1-5 parts of agar powder, 2-6 parts of tryptone, 3-9 parts of highland barley extract, 2-6 parts of yeast extract, 2-6 parts of sodium chloride, 1-3 parts of magnesium sulfate, 2-4 parts of monopotassium phosphate, 2-4 parts of water, 3-9 parts of a solid medium raw material and 2-6 parts of a nutritional agent. According to the culture medium for pleurotus eryngii strain cultivation, the potatoes, the bran and the highland barley extract are taken as raw material sources of flour and crude protein, nutrient elements and carbohydrate can be fully supplemented by adding glucose, sodium chloride, magnesium sulfate, monopotassium phosphate, the water, the solid medium raw material and the nutritional agent, therefore, the culture medium can fully meet nutrients and microelements needed by production of pleurotus eryngii strains, and the production efficiency is effectively improved.

The invention provides an energy-saving and environment-friendly heating furnace with a gasification barrel. The energy-saving and environment-friendly heating furnace with the gasification barrel comprises a furnace body (1) and a furnace core (2); the furnace core (2) is provided with a plurality of combustion-supporting holes I (3); the upper opening of the furnace core (2) is connected with the gasification barrel (4) which is provided with a plurality of combustion-supporting holes II (5); the furnace body (1) is provided with the air inlet (12) which is communicated with the combustion-supporting holes I (3) and the combustion-supporting holes II (5) through an air channel. The energy-saving and environment-friendly heating furnace with the gasification barrel has the advantages of being simple in structure, beneficial to manufacturing, low in cost, high in combustion efficiency and good in energy-saving and emission reduction effect.

The present invention provides one kind of concentrated fruit beverage with high nutritious value, no toxic side effect and mellow taste. The concentrated fruit beverage is prepared with materials including orange, shaddock, pineapple, apple, etc in certain weight proportion, and through a concentration process. It has the nutritious components in the fruits well maintained, contains no preservative, sweetener, sorbic acid and other additive, and can provide human body with essential vitamins.

The invention provides a burner and a gas stove. The burner comprises a burner head, an air distribution disc and a fire cover. A gas channel is arranged on the air distribution disc, and a fire hole in the fire cover is communicated with a gas introduction jet flowing channel through the gas channel. The burner further comprises a gas supplementation pipeline, an air channel is further arranged on the air distribution disc, an air supply device is arranged at the inlet end of the gas supplementation pipeline, and the gas outlet end is directly communicated with an inlet of the air channel. Due to the fact that the air channel is arranged on the air distribution disc, the gas supplementation pipeline and the air supply device are added to supplement secondary air, the gas is burnt completely, yellow flame and harmful gas are avoided, heat efficiency is improved, and the burner is simple and compact in structure.

The invention provides an organic waste disposal system which comprises a feeding device, a reaction device and a tail gas emission device, wherein a water seal device is arranged between the feeding device and the reaction device; the water seal device comprises a water tank, a gland and a movable cover; a feeding port of the reaction device penetrates through the bottom part of the water tank and is fixedly connected with the water tank; the gland is reversely buckled in the water tank; a through hole corresponding to the position of the feeding port is formed in the top part of the gland; the movable cover is arranged between the water tank and the gland; a side wall arranged on the bottom surface of the movable cover in the direction near the feeding port is opened; the movable cover does reciprocating motion at the upper part of the feeding port, so that the feeding port and the through hole are communicated and isolated; a seal strip is further arranged on the position where the opening position of the side wall of the movable cover and the inner wall of the water tank are in contact, therefore, the feeding port is completely sealed when the movable cover plays a role of isolating. According to the organic waste disposal system, continuous operations of feeding and processing the waste are realized, the pollution to the outside environment, caused by the gas, is alleviated, and the occurrence of an explosion accident is also avoided.

The invention relates to a hundred-ton large-scale three-phase electroslag furnace feeding technique. In the feeding process, a feeding electrode of which the diameter is 65-75% of the normal remelting electrode is adopted, and the electrode center circle and input power are adjusted to gradually reduce the depth and diameter of the bath, thereby implementing favorable feeding of hundred-ton steel ingots. In the feeding process, the effective input power is 40-55% of normal remelting, the melting speed is controlled at 0.3-0.8 t / h, and the buried depth is controlled at 10-20mm; in the early feeding stage, the diameter of the electrode center circle is one half of the crystallizer; and in the later feeding stage, the diameter of the electrode center circle is adjusted to 25-30% of the crystallizer. The feeding technique provided by the invention can control the shrinkage cavity depth of the hundred-ton electroslag ingot with the diameter of 1800mm at 100-240mm or so, whereas the shrinkage cavity depth of the existing feeding technique is 600mm or so, thereby enhancing the utilization ratio of the steel ingot.

The invention relates to a fertilizing method for peach trees. The method specifically comprises the following steps: 1) fertilizing principles; 2) fertilizing method and dosage including (1) base fertilizer, (2) additional fertilizer for soil, (3) foliage application, and (4) fertilization to peach trees through facilities. According to the method, nutritional ingredients needed by the growth of the peach trees can be fully and reasonably supplemented, the growth, the blooming and the fruiting of the peach trees are facilitated, the fruit setting percentage and the fruit tree quality are improved, and an excellent promotion value is achieved.

The invention relates to the field of valves, in particular to a valve with filter screen convenient to replace. The valve with filter screen convenient to replace comprises a valve body, a fixing pipe, a connecting structure, an adjusting structure, an alarming structure, a filtering structure, a mounting structure and a limiting structure. The mounting structure is arranged, so that the filtering structure is conveniently drawn out from the inside of the fixing pipe and can be replaced conveniently; the limiting structure is matched, so that the mounting structure is limited and fixed afterthe filtering structure is mounted, and then normal work of the filtering structure is guaranteed; the adjusting structure is arranged, therefore, the air pressure required by pressure relief can be adjusted according to actual use, the valve body can be directly and completely closed so as to facilitate follow-up work, and the pressure relief of the adjusting structure can further drive the alarming structure to work; and the alarming structure can work to alarm in time when the filtering structure is blocked, so that it is convenient for maintainers to carry out maintenance, and accidents are avoided.

The invention relates to the field of agriculture, in particular to a selenium-rich and high yield cultivation method of macadamia ternifolia. During planting of the macadamia ternifolia, organic selenium and sodium selenite are added reasonably and proportionally, adequate selenium supplement for macadamia terinifolia seedlings is achieved, growing speed is increased, dosage of sodium selenite isstrictly controlled, and the macadamia ternifolia seedlings are not toxic to sodium selenite. AM (arbuscular mycorrhizal) fungi is inoculated to the seedlings, conversion and utilization of seleniumin the macadamia ternifolia are facilitated, the macadamia ternifolia is enabled to absorb and convert more selenium, resistance of the macadamia ternifolia to adversities of low temperature, drought,salinity and the like is improved, and yield of the macadamia ternifolia is increased; the macadamia ternifolia obtained from the planting method has the advantages that content of various nutrientsin fruit is increased, and selenium, in particular, is increased dramatically; with the planting method, the yield of the macadamia ternifolia can be effectively increased, and content of organic selenium in the macadamia ternifolia is increased.

A disclosed stirring reaction tank used for amplified culturing of mineral-leaching microorganism comprises a hollow inner cylinder provided with an opening at the top, a thermal insulation device, a gas disperser and a baffle plate; the thermal insulation device is arranged at the outside of the inner cylinder; the gas disperser is a breather pipe, one end of the breather pipe is connected with an external gas source, and the other end of the breather pipe stretches into the inner cylinder and extends to the bottom of the inner cylinder via the top opening of the inner cylinder; and the baffle plate is arranged on the inner sidewall of the inner cylinder. The technical effects of the stirring reaction tank comprise that: the thermal insulation device provided by the stirring reaction tank self helps to furthest realize uniform heat transfer; the baffle plate in the stirring reaction tank helps to eliminate vortexes, change the rotary movement of the liquid into vertical rotary movement, so that the axial-direction and radial velocity components are increased, the stirring reaction tank discharged flow possesses relatively wide flow radius, and good mixing and leaching effects are realized; and because the gas disperser in the stirring reaction tank is disposed at the bottom of the stirring reaction tank, so that oxygen and carbon dioxide are fully supplemented.

The invention discloses a heat pump air conditioner with a dehumidifying function. The heat pump air conditioner with the dehumidifying function comprises a heat pump main machine, a cold / heat supply circulating system, an indoor heat exchanger and a dehumidifying temperature adjusting machine arranged indoors, wherein the heat pump main machine comprises a compressor, a first heat exchanger, a fan, a second heat exchanger, a four-way valve and an expansion valve; the cold / heat supply circulating system comprises a cold / heat supply pipeline, a cold / heat return pipeline, a third heat exchanger, a water distributing and collecting device and a circulating water pump; the second heat exchanger and the third heat exchanger are coupled to form a double-flow-channel heat exchanger; the indoor heat exchanger and the dehumidifying temperature adjusting machine are connected in series and then communicate with the water distributing and collecting device, or the indoor heat exchanger and the dehumidifying temperature adjusting machine communicate with the water distributing and collecting device separately; and the dehumidifying and temperature adjusting machine works along with the cold / heat supply circulating system. Refrigeration functions of the dehumidifying and temperature adjusting machine and the heat pump main machine cooperate to adjust temperature and dehumidify, the synergistic effect is achieved, the energy is saved, the structure is simple, and installation is convenient; and under the conditions of low-temperature and high-humidity weather such as southern days and plum rainy days, a good effect is achieved for ensuring indoor comfort.

The invention discloses a white goat breeding method capable of improving the meat quality. The method includes the following steps of 2, pasture management, wherein a place with sufficient sunshine and dense vegetation is selected as a pasture, the pasture is divided into 5-8 areas, multiple edible Chinese herbal medicines for white goats are planted in each area, a nutrient pool is built in each area, each nutrient pool is divided into 3 cells, each cell contains a different nutrient solution, a sprayer is connected to each cell, and the spraying range of each sprayer can cover the corresponding area; 3, nutrient solution preparation, wherein 4-6 clean containers are prepared, each nutrient solution is prepared from 5-8 parts of corn, 4-6 parts of sorghum, 1-3 parts of salt and 50-100 parts of mountain spring water, the corn and the sorghum are finely grinded by a flour mill and then mixed with the mountain spring water, and then the salt is added. By means of the scheme, the meat quality of the white goats can be improved, so that more economic benefits are brought to a farmer.

The invention discloses a ceramic thyratron. In the thyratron, a grid part is fixedly connected with the lower part of an anode ceramic seal part, and is fixedly connected with the upper part of a cathode grid part; the position of a tube base part is fixed under the cathode grid part; the position of the cathode part is fixed between the grid part and the tube base part; and the anode part is fixedly positioned on the anode ceramic seal part. The anode part comprises a molybdenum anode, a lining plate, an anode cup, an anode plate and an anode lead wire, wherein the anode cup is fixed on the molybdenum anode; the lining plate is fixed on the bottom of the interior of the anode cup; one end of the anode lead wire is fixedly arranged at the central hole of the lining plate in a penetrating manner; the anode plate is fixedly sleeved in the middle of the anode lead wire; a circle of through holes are uniformly provided at the middle of the wall of the anode cup; the anode plate can just seal the upper parts of the through holes, thus an anode hydrogen storage cavity is separated in the inner space of the anode cup for gas ionization supplying for anode-grid space; and a grid radiating ring is fixedly sleeved on the outer wall of the mouth of the grid cup, so that the heat dissipation performance of the grid part can be improved, and the whole tube temperature of the ceramic thyratron can be reduced.

The invention discloses a high pressure holding furnace of a low pressure casting machine and belongs to the technical field of casting. The high pressure holding furnace of the low pressure casting machine comprises a holding furnace shell; a sealable pressurized chamber is formed in the holding furnace shell; a liquid lifting opening is formed in the top of the holding furnace shell; a liquid lifting tube communicating with the pressurized chamber is arranged in the liquid lifting opening; a nitrogen pressurizing inlet and a nitrogen depressurizing outlet are also formed in the holding furnace shell; the nitrogen pressurizing inlet and the nitrogen depressurizing outlet both communicate with the pressurized chamber; a nitrogen pressure mechanism is arranged between the nitrogen pressurizing inlet and the nitrogen depressurizing outlet; the nitrogen pressure mechanism provides nitrogen for the nitrogen pressurizing inlet and recycles nitrogen from the nitrogen depressurizing outlet; the high pressure holding furnace of the low pressure casting machine further comprises a plurality of radiation heaters and immersion type heaters; the radiation heaters extend into the pressurized chamber and indirectly heat an aluminum liquid above the aluminum liquid; and the immersion type heaters extend into the pressurized chamber and directly heat the interior of the aluminum liquid.

The invention discloses a ficus virens nutrient solution capable of improving the disease resisting capability of trees. The ficus virens nutrient solution is prepared from the following components inparts by weight: 0.5 to 5 parts of potassium nitrate, 0.5 to 5 parts of ammonium nitrate, 0.5 to 5 parts of sodium sulfate, 0.1 to 1 part of ammonium molybdate, 0.01 to 0.1 part of ferrous sulfate, 0.0001 to 0.001 part of zinc sulfate, 0.1 to 1 part of potassium dihydrogen phosphate, 0.01 to 0.1 part of formic acid, 0.01 to 0.1 part of pyrimethanil, 0.01 to 0.1 part of flusilazole, 0.01 to 0.1 part of vitamin P, 0.05 to 0.1 part of maleic hydrazide and 1000 parts of distilled water. A method for applying the nutrient solution to ficus virens comprises the steps of irrigating roots, injectingtrunks or diluting the nutrient solution and spraying the diluted nutrient solution on tree bodies. The nutrient solution disclosed by the invention can be used for accelerating the growth of the ficus virens and has a remarkable effect on surviving and rejuvenation of the ficus virens; the disease resisting capability is improved and needed rare microelements are supplemented; the nutrient solution is only applicable to the growth of the ficus virens and is not applicable to other trees; the nutrient solution has various application manners; the nutrient solution can be pertinently utilized according to specific conditions of the ficus virens and the ficus virens can obtain comprehensive nutrients; the ficus virens nutrient solution is suitable for being widely popularized and applied toa planting industry of the ficus virens.

The invention discloses a lithium battery life prediction system based on intelligent network connection. The system is used for a new energy automobile. A first temperature sensor is arranged inside a lithium battery, and a second temperature sensor is arranged outside the lithium battery; a capacity calculation unit is connected with the lithium battery and is used for calculating the electric quantity of the lithium battery in a fully charged state; a controller is electrically connected with the lithium battery, the first temperature sensor, the second temperature sensor and the capacity calculation unit; the controller is used for acquiring a detection result of the first temperature sensor, a detection result of the second temperature sensor and a calculation result of the capacity calculation unit; a remote server is in network connection with the controller; and a service life prediction model is arranged in the remote server, and is used for predicting the service life of the lithium battery according to the detection result of the first temperature sensor, the detection result of the second temperature sensor and the calculation result of the capacity calculation unit, and feeding back the prediction result to the corresponding controller. According to the invention, the service life of the lithium battery can be predicted.

The invention relates to an afforestation tree whole-canopy transplanting method. The method includes the steps of keeping the growing environment before and after tree transplanting uniform, determining the size of a tree mud ball, processing a root system during ball digging, selecting the components and matching of rooting liquid after digging out the tree ball and selecting the components and matching of a nutrient solution after replanting. By using the technical method, the rooting liquid and the nutrient solution, the tree transplanting scheme and process can be effectively optimized, the construction efficiency is improved, construction cost and transport cost are reduced, tree rooting and differentiation are promoted, the growth vigor is recovered, and the engineering technical problem of low tree transplanting survival rate is solved. By means of elaborated construction and specified management and protection, the survival rate of transplanted trees is remarkably increased.

The invention relates to a pear tree fertilizing method. The method specifically includes following steps: 1, determining fertilizing rules; 2, adopting a fertilizing method and using amount: 1), applying base fertilizer; 2), performing soil topdressing; 3), performing foliage fertilizer spraying; 4), performing facility fertilizing. By the method, sufficient and reasonable supplementing of nutritional ingredients needed for pear tree growth can be ensured, pear tree growing, flowering and fruiting are facilitated, fruit setting rate and fruiter quality are improved, and the method has high popularization value.

The invention discloses a waste incineration device which comprises an incineration furnace, a feeding system and a heat exchanger. The feeding system is arranged on one side of the incineration furnace, a discharging port of the feeding system is in butt joint with a feeding port of the incineration furnace, the heat exchanger is arranged on a smoke outlet of the upper end of the incineration furnace, and an inlet of the lower end of the heat exchanger is in butt joint with and fixed to the smoke outlet. The waste incineration device achieves automatic feeding, makes waste incineration sufficient and is high in combustion efficiency and small in pollution.

The invention relates to a citrus tree fertilization method, which comprises the following steps: I) fertilization principles; and II) a fertilization method and dosage: 1) base fertilizer, 2) soil topdressing, 3) foliage application, and 4) facility fertilization. The method can ensure that the nutritional ingredients needed for the growth of citrus trees are fully and reasonably replenished, contributes to the growth, flowering and fruiting of the citrus trees, improves the fruit setting rate and the quality of fruit trees, and thus has a very good promotion value.

The invention discloses a mask inner core with an oxygen slow release function. The inner core is of a multilayer structure, and comprises an inner layer, a middle structure and an outer layer; the middle structure consists of an oxygen generating agent support skeleton and an oxygen slow release material; ventilation holes are formed in the inner layer; and a dampproof material is arranged in the outer layer. The mask inner core achieves the purposes of controlling the oxygen release quantity and the oxygen release speed by adopting gel, nanometer titanium dioxide and a gel mixing effect.

The invention discloses a redwood tree nutrient solution with a remarkable use effect. The nutrient solution is prepared from, by weight, 0.5-5 parts of potassium nitrate, 0.5-5 parts of calcium nitrate, 0.5-5 parts of sodium sulfate, 0.1-1 part of manganese sulfate, 0.01-0.1 part of ferric citrate, 0.0001-0.001 part of ammonium molybdate, 0.1-1 part of ammonium dihydrogen phosphate, 0.01-0.1 partof citric acid, 0.01-0.1 part of mancozeb, 0.01-0.1 part of imidacloprid, 0.01-0.1 part of natural BR, 0.05-0.1 part of compound sodium nitrophenolate and 1000 parts of distilled water. The nutrientsolution is applied to redwood trees according to the following modes including root irrigation and trunk injection, or sprayed on the tree bodies after the nutrient solution is diluted. The nutrientsolution can not only accelerate the growth of the redwood trees, but also have a remarkable effect on survival rejuvenation of the redwood trees, improve the disease resistance capability of the redwood trees, and supplement required rare trace elements, and is only suitable for growth of the redwood trees and unavailable for other trees; the use modes of the nutrient solution are diversified, and the nutrient solution can be used in a targeted mode according to the specific conditions of the redwood trees to enable the redwood trees to obtain comprehensive nutrients, so that the nutrient solution is suitable for being widely popularized and applied to the planting industry of the redwood trees.