47results about How to "Low technical requirements for management" patented technology

A method for treating the As-polluted soil features that the Chinese brake herbs are planted in said soil for absorbing the As from the soil and the their leaves are removed periodically (5-6 months). For acid soil, the lime or alkaline fertilizer can be applied to increase its pH value.

The invention relates to an oil tea tree seedling culture medium, which is mixture of oil tea seed shell composted matters, garden soil and pearlite which are evenly mixed. The volume ratio of oil tea seed shell composted matters to garden soil to pearlite of the mixture is (4-6): (1-3): (0.5-2). The garden soil is crushed soil. The oil tea seed shell composted matters are composted materials of waste oil tea seed shells obtained after oil tea processing. The medium is used for culturing oil tea trees. The oil tea tree seedling culture medium provided by the invention has the advantages that the physical and chemical properties of the original single-component medium are improved, the dust and the oil tea seed shells produced at an oil tea seed cleaning section can be used and the price is low; the problem that a nonrenewable medium, i.e. turf is greatly used for oil tea tree seedling production at preset is fundamentally solved; and on the premise that the quality of oil tea tree seedlings is guaranteed, the costs of grease factory production and waste treatment are decreased, and the social, economic and ecological benefits are remarkable.

A plant method for in-situ treating the soil polluted by Cd features that the plant Dongnan Jingtian is directly planted in the polluted soil for absorbing the Cd from the soil and after the plant is growing for 3-4 months, it is removed. Its advantages are high effect and speed and no secondary pollution.

The invention provides a lily cultivating substrate made of coconut residues. The cultivating substrate is prepared in such a way that coconut residues, sand, perlite, vermiculite, and the like are mixed according to a certain volume ratio. The composite substrate improves physicochemical properties of the prior single substrate, has wide sources of all single components, convenient material acquisition and low cost, fundamentally solves the problem of greatly using a nonrenewable substrate, namely turf in the current lily production, reduces the production cost on the premise of ensuring the quality of lily cut flowers and has obvious benefits of society, economy and environmental ecology.

The invention discloses a method for promoting broad bean in restoring and treating cadmium-polluted soil by using citric acid. The method is characterized in that: the method comprises steps that: broad bean is planted in soil containing cadmium pollutants, and a citric acid aqueous solution is applied to the soil; when the broad bean plants pod or are mature, the broad bean plants are harvested or integrally removed from the polluted soil; a next batch of broad bean can be planted on the soil; a citric acid aqueous solution is applied to the soil; when the broad bean plants pod or are mature, the broad bean plants are harvested or integrally removed from the polluted soil; the process is repeated until the cadmium content in the soil reaches an environment safety standard. With the method provided by the invention, the cadmium absorbing and enriching capacities of broad bean can be developed. The cadmium-polluted soil restoring method is characterized by low investment, low maintenance cost, low project quantity, and low requirement on management technology. When the cadmium-polluted soil is restored by using broad bean, the fertility of the soil can be improved with the nitrogen fixation effect of broad bean. Therefore, good environment benefit, social benefit and economic benefit are brought in.

A method for repairing the As polluted soil by plant feature use of Chinese brake herb which can absorb the As from the As-polluted soil. It includes such steps as culturing Chinese brake herb, transplanting it in said As-polluted soil by the density of 20*20 cm, and harvesting 2-3 times when the height of said Chinese brake herb is 50-100 cm.

The invention relates to an integrated high propagation method of water planting of virus-free potato seeds and seedlings. The method comprises the steps that a multiplication technology of the water-planting virus-free seedlings and a water planting production technology of the seedlings and the seeds are integrated, and the concentration of nutrient solution components, the light quality of a supplementary light source, hormone components, seedling cutting times and the like are optimized at the same time. According to the method, the stability and security are high, operation and daily management are simple and convenient, the maintenance and production costs are low, the sound seedling index of water-planting potato plants are significantly improved, the yield and quality of the seedlings and mini-potato are improved, the plant propagation coefficient is enlarged, the production cycle of the mini-potato is shortened, and the method is of great importance in breeding of the potato seeds and seedlings.

The invention relates to arsenic bearing material safe burning method. It includes the following steps: wetting the pulverized arsenic bearing material by 15% Mg(NO3)2; drying; mixing with the MgO powder as the 2-4:1(W/W); or directly mixing the pulverized one with the CaO as 2-4:1(W/W); burning at 300-800 degree centigrade; reclaiming the extra MgO or CaO. The method can effectively prevent arsenic from volatilizing, and greatly reduce pending material and next disposing cost. The arsenic solidifying agent can avoid its leaching while processing to reduce secondary pollution risk. This method can be used in burning for arsenic bearing plant, arsenic bearing conserving agent processed wood, high arsenic coal etc.

The invention provides a DorysthenesgranulosusThomson indoor artificial breeding method comprising the following steps: collecting DorysthenesgranulosusThomson imago; making the DorysthenesgranulosusThomson imago to mate and lay eggs, and collecting and hatching DorysthenesgranulosusThomson eggs so as to obtain primary hatching larva; arranging culture holes on an end face of a fresh sugarcane stem, and inoculating the primary hatching larva into the culture holes for cultivation; transferring the larva into sugarcane stems for single breeding when the larva appetite largely grows; respectively placing pupa into an eclosion container for single eclosion after mature larva creep into soil and pupate; placing male/female mixed eclosion imago into an insect culture container for mating after DorysthenesgranulosusThomson eclosion, and paving a 1-3cm thickness fine sands on the bottom of the insect culture container so as to allow the DorysthenesgranulosusThomson to lay eggs. By using the method, the DorysthenesgranulosusThomson is high in egg hatching rate, high in larva survival rate, high oviposition amount, thus contentiously obtaining large amount fully grown individuals, and providing important base for DorysthenesgranulosusThomson control research.

The invention discloses a method for promoting enrichment of cadmium by red spinach through composition of a plant hormone and a chelating agent. The method is characterized in that the red spinach is planted in pollutant cadmium-containing soil, and the plant hormone and the chelating agent EDTA are sprayed or irrigated, and when being in the flowering period or the maturation period, the plant red spinach is cut or wholly removed from the polluted soil; then a next batch of the red spinach is further planted, the plant hormone and the chelating agent EDTA are sprayed or irrigated, and when being in the flowering period or the maturation period, the plant red spinach is wholly removed from the polluted soil; the process is repeated until the content of the cadmium in the soil reaches the environmental safety standard. By adopting the method, the absorption, transport and enrichment to the cadmium by the red spinach can be remarkably increased, the phytoremediation efficiency of the cadmium-polluted soil is effectively improved, the method has the characteristics of less investment, low maintenance cost, small work amount and low management technology requirements for repairing of the cadmium-polluted soil, and favorable environmental benefits, social benefits and economic benefits are realized.

A method for preparing a composite matrix from pig's excrement in order to culture cyclamen includes such steps as mixing said pig's excrement with a mixed flora (OL) containing multiple kinds of microbes, fermenting, and proportionally mixing it with peat, vermiculite and pearlite.

The invention provides a lily cultivating substrate made of corn stalks. The cultivating substrate is prepared in such a way that corn stalks, perlite, sand, turf, and the like are mixed according to a certain volume ratio. The cultivating substrate improves physicochemical properties of the prior single substrate, has wide sources of all single components, convenient material acquisition and low cost, replaces a nonrenewable substrate, namely turf greatly used in the current flower production by a corn stalk part, reduces the production cost on the premise of ensuring the quality of lily cut flowers and has obvious benefits of society, economy and environmental ecology.

The invention provides a lily culture medium prepared from straws or wheat stalks. The culture medium is prepared by mixing straws or wheat stalks, perlite, vermiculite, grass carbon and the like according to a certain volume ratio. The culture medium improves the physical and chemical property of the original single medium, has the advantages of wide resources of single component, convenient material obtainment and low cost, uses the straws or wheat stalks to solve the problem that a large quantity of nonrenewable medium-grass carbon is used in prior flower production, reduces the productioncost on the premise of ensuring the lily cut quality, and has obvious social benefit, economic benefit and environment ecological benefit.

The invention discloses a method for in-situ treatment of eutrophicated surface water. The method comprises the following steps: firstly, carrier preparation; secondly, semen coicis pre-culture; thirdly, secondary semen coicis culture; fourthly, seedbed preparation, which refers to spreading the semen coicis seeds uniformly according to a proportion of 24.5-25.5 dry weight per/m<2> on wetted seedbed carriers for shoot plants; fifthly, treatment of eutrophicated surface water, namely, when the semen coicis on the seedbed grows 7-10cm tall, transplanting the seedbeds into the surface of a water area to be treated with 0.2-0.3 square meter seedbed/cubic meter water area. The method of the invention adopts the special plant of semen coicis, and can quickly remove nitrogen and phosphorus in eutrophicated water to purify the water quality without the production of secondary pollution.

The invention discloses a flat-plate type parking assistance device. The device comprises a no-load advancing mechanism, a working advancing mechanism, a rotating mechanism, a lifting mechanism, a retractable handle mechanism and a control panel, wherein the no-load advancing mechanism comprises a chassis and three universal wheels arranged at the bottom of the chassis through spring shafts; the working advancing mechanism is arranged in the chassis and can run when assisting in parking, the rotating mechanism is arranged on the upper side of the middle of the chassis and can drive the liftingmechanism and automobiles parked on the lifting mechanism to rotate together, and the lifting mechanism is arranged on the rotating mechanism and can drive the automobiles parked on the lifting mechanism to ascend and descend. The retractable handle mechanism is arranged at one end of the chassis and is adjustable in length, and the control panel is mounted on the retractable handle mechanism andused for controlling the lifting motion and the rotating motion. The device has the advantages of being simple in structure, reliable in performance, small in size, convenient to use, quick to put into use, economical, high in universality and easy and convenient to maintain.

The invention discloses a method for enhancing scindapsus aureus by using plant hormone 2, 4-EBL so as to repair a copper-polluted water body. The method comprises the following operation steps: 1) planting scindapsus aureus in the copper-polluted water body, applying 0.01-10 [mu]M of plant hormone 2, 4-EBL, and growing and culturing; and 2) removing the grown and cultured scindapsus aureus from the polluted water body, and by means of repeated planting and repeated operation, achieving the purpose of accumulating excessive copper in the water body into the scindapsus aureus, and finally enabling the copper content in the polluted water body to meet the national water quality standard requirement. The plant hormone 2, 4-EBL is applied to enhance the scindapsus aureus to repair the copper pollution, so that the growth of the scindapsus aureus can be promoted, the heavy metal copper accumulation capability of the scindapsus aureus is improved, the water quality is improved, and the problems of low absorption rate of plants to heavy metals and slight water quality purification effect in the conventional phytoremediation are effectively solved.

The invention belongs to the technical field of soil heavy metal phytoremediation, and particularly relates to an intercropping method for safely planting corn while remediating a moderate-light cadmium polluted farmland. According to the method, an intercropping planting technology of sedum alfredii hance and important grain crop corn in China is applied to field experiments, and safe planting of the corn in the medium-light cadmium polluted farmland is achieved by spreading barley root exudates to the roots of the sedum alfredii hance. The method has the advantages of low investment, low management technical requirements, no damage to the physical and chemical properties of soil and no secondary pollution, and is a technology for simultaneous production and remediation of the farmland, which is wide in application range, low in investment and simple to operate.