34 results about "Elsholtzia splendens" patented technology

The invention discloses a method for remediating heavy metal polluted soil comprehensively. A comprehensive plant remediation technology for combining woody fast-growing tree paulownia elongate with an obvious fixing effect to multiple kinds of heavy metals including Cu, Pb, Cd, Zn and herbaceous plant elsholtzia splendens with hyperaccumulation effect and rapid growth speed to Cu<2+> is adopted, and meanwhile an animal (earthworm) remediation technology is assisted so as to reach an effect of removing soil heavy metal pollution maximally, so that the in-situ bioremediation to soil is realized; moreover, pollutants are effectively prevented from entering a food chain directly so as not to generate secondary pollution to soil. The method is a comprehensive remediation method of heavy metal contaminated soil, which has good environment friendliness, is low in cost, has an obvious effect to the remediation of heavy metal contaminated soil, can enhance the fertility of the heavy metal contaminated soil, and is easy to popularize in a large area.

The invention belongs to the field of phytoremediation of heavy metal polluted soil, and discloses a method for improving phytoremediation efficiency of copper-polluted soil on the basis of the existing phytoremediation method for the heavy metal polluted soil. The method comprises the following steps: applying a chemical enhancer containing powdered sulfur and ethylenediaminedisuccinic acid to the copper-polluted soil; spraying a nutrient solution containing exogenous plant hormone naming zeatin Z at a fixed period after planting elsholtzia splendens; picking the aboveground parts of elsholtzia splendens after the growing season is finished, so as to reach the purpose of remediating the heavy-metal copper polluted soil. With the adoption of the method, the growth of elsholtzia splendens is promoted, and the problems that high-copper soil represented by soil in a copper mine area inhibits the growth of elsholtzia splendens and causes short plant, small biomass and slow growth can be solved; the method has the advantages of being high in absorbing efficiency, high in degree of enrichment, and obvious in remediation effect.

The invention discloses a botanical pesticide capable of preventing myzus persicae and an application of the botanical pesticide. The botanical pesticide is a composition which is prepared from appelianum oil, elsholtzia splendens oil and Vitex canescens oil, is added with an accessory ingredient to prepare a missible oil agent, a microemulsion or an emulsion in water. The botanical pesticide has a remarkable prevention effect on the myzus persicae, has no residue on tobacco leaves, improves the quality of the tobacco leaves, is harmless to the environment, natural enemies of the myzus persicae, people and livestock and has the strong practicability.

The invention relates to a technology for repairing vegetable field soil slightly polluted by heavy metals while producing. The steps are as follows: 1) Intercropping Sedum sedum and Sedum haizhou in the vegetable soil polluted by heavy metals of cadmium, copper and zinc in spring, the planting density is 10-15cm, and the row spacing is 30cm; 2) Harvest Sedum sedum regularly, the first time Harvest the southeast sedum for 3-4 months of growth, and then harvest once every 3 months or when it grows to a height of 30-40cm. When harvesting, the stem above the ground is 2-3cm high; Harvest Haizhou Xiangru in October; 3) Haizhou Plant cadmium-enriched rapeseed after Harvestifolia harvested, with a plant spacing of 15-20cm, and harvest in April of the following year; 4) After rapeseed, plant cucumbers with a plant spacing of 20-25cm, plant cabbage after cucumber harvest in September, and plant Haizhou after cabbage harvest Rosacea, complete a repair cycle. The invention utilizes super-accumulating plants to take away a large amount of heavy metals from soil, thereby reducing the content of heavy metals in vegetables and ensuring the safety of agricultural products.

The invention discloses a strain of copper-resistant bacteria and an application thereof. The copper-resistant bacteria DGS6 is preserved in China General Microbiological Culture Collection Center (CGMCC) with a preservation number of CGMCC NO. 4817. The bacterial strain DSG6 not only can dissolve the insoluble copper carbonate in the liquid culture base, but also can activate the copper (Cu) in the soil. The bacterial strain can effectively promote the elongation growth of elsholtzia splendens nakai, corn and sunflower roots. A potted plant experiment shows that the bacterial strain DGS6 canpromote the growth of plants and enhance the biomass of the plants. Experimental results show that compared with a reference, after the bacterial strain DGS6 is inoculated, the dry weight of a floor part and the dry weight of the roots of the corn are respectively increased by 49 percent and 35 percent, the dry weight of the floor part and the dry weight of the root of the sunflower are respectively increased by 85 percent and 42 percent. The pseudomonas DGS6 with the preservation number of CGMCC No. 4817 can be applied in promoting the growth of the plants.

The invention discloses a biological heavy metal contaminated soil remediation method which comprises the following steps: (1) manually removing weeds and shrubs on to-be-remediated heavy metal contaminated soil, applying sufficient organic farm manures which are thoroughly decomposed at the season when autumn changes into winter, performing deep ploughing, so that the soil is weathered, overwintering injurious insects are frozen to death, and the land is thoroughly ploughed and harrowed; (2) transplanting woody fast-growing trees bamboo willow when the average air temperature reaches over 10 DEG C after the soil in spring is unfrozen; (3) introducing earthworms for soil remediation when the air temperature reaches over 15 DEG C after transplanting, and collecting the earthworms; (4) introducing Elsholtzia splendens and dayflower after the earthworms are collected for the first time in the earthworm remediation process, and wholly removing the Elsholtzia splendens plants and dayflower with roots; and (5) introducing the earthworms, Elsholtzia splendens and dayflower again in spring in the next year, applying sufficient organic farm manures before introduction, thoroughly ploughing and harrowing the land, and repeating the previous processes. According to the method disclosed by the invention, the animals and plants are combined to act, soil remediation is realized, and the method is economic, environment-friendly, high in remediation efficiency and easy to popularize.

The invention relates to a method for using the refinishing plant elsholtzia to prepare the organic fertilizer with copper. It harvests, dries, shatters and piles the elsholtzia when it grows on 165-195 days; it amplifying cultivates the microorganism 1 and adds it into the pile and ascertains the viable bacteria number; it mixing cultivates the microorganism 2 and the molasses and adds it into the pile. The bacteria adding is 10% of the pile quality and the bacteria number is between 2.0x106CFU / g to 2.8x106CFU / g. It shifts the pile to guarantee the gas blow; it forms the organic fertilizer; the microorganism 1 is Cellulobacillus; the microorganism 2 is Effective Microorganisms. The OD value is between 0.5-0.6; the cellulose decomposing bacteria: the EM bacterium is 1:1.

The invention provides a biological remediation method for soil polluted by cadmium, zinc, lead and copper ions. The biological remediation method is realized by the following technical scheme comprising the following steps: (1) selecting the soil to be remediated, polluted by heavy metals, manually removing weeds and shrubs, applying enough decomposed organic agricultural foreign fertilizers in the end of autumn and the beginning of winter, deeply ploughing to enable the soil to be weathered, freezing overwintering pests for death, ploughing a land thoroughly and crushing the soil by a rake; (2) after the soil is unfrozen in the spring, when the average temperature reaches more than 10 DEG C, transplanting woody and fast-growing trees, namely bamboo willows with the heavy-metal enriching capability; (3) after the transplanting is finished, when the temperature reaches more than 15 DEG C, implementing the earthworm remediating process, and then collecting earthworms; and (4) after the first-time collection of the earthworms in the earthworm remediating process, planting elsholtzia splendens and alfred stonecrop and then wholly removing the elsholtzia splendens plants and the alfred stonecrop plants with roots, and in the spring next year, reintroducing the earthworms, the elsholtzia splendens and the alfred stonecrop into the land for remediation again, wherein the whole remediation process lasts for 20 months totally.

The invention provides a biological remediation method for soil polluted by heavy metals. The biological remediation method comprises the following steps: selecting the soil, to be remediated, polluted by the heavy metals, manually removing weeds and shrubs, applying enough decomposed organic agricultural foreign fertilizers in the end of autumn and the beginning of winter, deeply ploughing to enable the soil to be weathered, freezing overwintering pests for death, ploughing a land thoroughly and crushing the soil by a rake; after the soil is unfrozen in the spring, when the average temperature reaches more than 10 DEG C, transplanting woody and fast-growing trees, namely bamboo willows with heavy-metal enriching capability; after the transplanting is finished, when the temperature reaches more than 15 DEG C, implementing the earthworm remediating process, and then collecting earthworms; and after the first-time collection of the earthworms in the earthworm remediating process, planting a herbaceous plant, namely elsholtzia splendens with hyperaccumulating action to Cu<2+> and high growth speed so as to enhance the enriching action to copper ions of the shallow soil, and then wholly removing the elsholtzia splendens plants with roots. The biological remediation method provided by the invention has the advantages that not only can the effect of removing the heavy-metal pollution of the soil maximally be achieved, but also the secondary pollution to the soil is avoided.