47results about How to "Decreased fertility" patented technology

The invention relates to the technical field of fruit tree plantation and concretely relates to a sand-sugar orange plantation method. The method comprises the following steps of (a) selecting and preparing a piece of land, (b) fixedly planting, (c) managing the field, (d) managing during blossoming and fruiting periods, and (e) harvesting and trimming. In the (a) step, the land is deeply ploughed, ripened and flattened in last winter before the plantation; and sand-sugar orange plantation caves are dug. In the (b) step, sand-sugar orange seedlings are fixedly planted; a ridge with the height of 15 to 25cm is piled surrounding the sand-sugar orange plantation caves; and fixed-plantation water is watered. In the (c) step, after the planted sand-sugar orange survived, trenches are dug in the ridge and ground fertilizer is applied; ground fertilizer and leaf fertilizer are applied in proper time and water is injected or drained; and disease and insects are prevented. In the (d) step, fruiting promotion liquid is sprayed during the last period of the blossom period; and fruits are thinned in time. The method adheres to sand-sugar orange growth features, can improve sand-sugar orange main output and sweetness, reduce acidity, and provides great taste; and continuous plantation cannot cause acidizing and hardening would-be degradation phenomena.

The invention discloses an environment-friendly novel process of a saline-alkali soil modifier suitable for waste biomass and ardealite preparation. The advantage of rich waste biomass and ardealite resources in China and the current situation of severe soil alkalization in China are taken into consideration. According to the novel process of preparing the saline-alkali soil modifier using the solid waste, the hydro-thermal treatment is conducted on the mixture after the waste biomass and a certain amount of ardealite are mixed on specific conditions, and the saline-alkali soil modifier is obtained by centrifugation and solid-liquid separation. The saline-alkali soil modifier is simple in preparation process, capable of regenerating, low in cost and capable of reducing the soil alkalization of the soil and improving soil fertility. The modifier is prepared from the waste biomass and the ardealite, the saline-alkali soil is effectively improved, and the clean resource utilization on the waste biomass and the ardealite is achieved at the same time.

The invention relates to the technical field of fertilizers and particularly relates to an organic fertilizer for planting vitis heyneana. The organic fertilizer includes, by weight, 700-1000 parts of grape residue, 500-750 parts of feces of livestock, 30-60 parts of marsh gas residue, 90-120 parts of sucrose mud, 50-80 parts of wood chip, 60-90 parts of straw, 20-50 parts of shell powder, 2-5 parts of Bordeaux mixture, 15-30 parts of a compound fertilizer, 5-13 parts of urea, 3-8 parts of potassium chloride, 1-4 parts of cellulase, 2-5 parts of actinomycetes, 1-4 parts of compost fermentation bacteria, and 0.3-1.0 part of sodium naphthylacetate. The organic fertilizer can effectively improve planting soil situation and increase yield and improve the quality of the vitis heyneana. The flavor of the planted vitis heyneana is more approximate to wild varieties and the quality of the vitis heyneana is improved. In addition, a planting method using the organic fertilizer is provided.

The invention discloses a soil conditioner. The soil conditioner comprises the following materials in percentage by weight: 22.3 to 35.6% of attapulgite powder, 15.8 to 25.4% of turfy soil, 12.5 to 24.7% of hay, and 25.3 to 35.2% of sheep manure. When in use, soil is turned over firstly, the soil conditioner is uniformly applied to the soil based on the usage amount of about 150kg per mu each year, and then the soil is handled to enable uniform mixing with the soil conditioner. The soil with the use of the soil conditioner in the way above basically does not need any other chemical fertilizers, but the output obtained is equal to that under the use of chemical fertilizers; in addition, the fertility of the soil does not gradually decrease, so that the usage amount increasing as time goes on like other chemical fertilizers does not appear; with the adoption of the soil conditioner, the pollution of harmful substances in the chemical fertilizer to soil can be reduced, and hardening can be avoided.

At the aim of the situations of degraded soil fertility and low chemical fertilizer nutrient utilization rates in China, and with the combination of the advantage of rich waste biomass resources in China, the invention discloses a novel process for preparing a carbon-based slow-release composite fertilizer from waste biomass. The novel process specifically comprises the following steps: carrying out hydrothermal treatment on waste biomass under specific conditions, mixing the hydrothermal biomass with a composite fertilizer according to a certain ratio, or carrying out co-hydrothermal treatment on waste biomass and the composite fertilizer under specific conditions, and carrying out drying and pelletization. According to the novel process, the waste biomass is adopted as a raw material, sothat the carbon-based slow-release composite fertilizer prepared by using the process is low in price, and in addition, the carbon-based slow-release composite fertilizer has the advantages of beinghigh in fertilizer efficiency, high in nutrient utilization rate, good in soil repairing function, and the like.

The invention discloses a novel process for preparing an environment-friendly compound contaminated-soil in-situ repairing agent with abandoned biomass by combining the advantage of rich abandoned biomass resources in our country and the current situation that the soil combined pollution is serious in our country. According to the process, the abandoned biomass and a certain amount of quick lime are mixed and then subjected to hydro-thermal treatment under a certain condition, centrifugal solid-liquid separation is performed, and the compound contaminated-soil in-situ repairing agent is obtained. The soil repairing agent is simple in preparation process, regenerable and low in cost, the occurrence mode of heavy metal in soil can be changed, the heavy metal in the contaminated soil is efficiently passivated, and the total amount of bioavailable organic pollutants PAHs in the soil can also be remarkably lowered, in other words, efficient in-situ repairing of the organic-inorganic compound contaminated soil is achieved. The repairing agent is prepared through the abandoned biomass, and efficient in-situ repairing of the compound contaminated soil is achieved while clean recycling utilization of the abandoned biomass is achieved.

The invention relates to amiRNA for inhibiting the rice gene OsRboh(LOC_Os01g25820) and discloses an amiRNA sequence of silence rice respiratory burst oxidase OsRboh, and the sequence is TTAAACAACCGAAGGATACGC. According to the amiRNA for inhibiting the rice gene OsRboh(LOC_Os01g25820), the OsRboh(LOC_Os01g25820)-amiRNA sequence is artificially synthesized and connected to an expression carrier to be converted into rice, obtained transgenic rice plant leaves turn into white, and the fertility is lowered. By means of the prepared rice gene OsRboh(LOC_Os01g25820) amiRNA, the rice target gene can be targeted to efficiently, and certain significance is achieved on the aspects of basic research and production practice.

The invention discloses a livestock culture sheep dung cleaning and fermentation device. The device comprises a pedestal, and is characterized in that a supporting rack is connected to one end on the pedestal; an adjusting plate is connected on the supporting rack; a driving wheel and a driven wheel are respectively connected on the two ends of the adjusting plate; a motor is arranged on one end of the adjusting plate; the motor drives the driving wheel to rotate; a conveyor belt is arranged on the driving wheel and the driven wheel; the conveyor belt is corresponding to rollers arranged on the pedestal; a collection sealing cylinder corresponding to the conveyor belt is arranged on the pedestal; and a scraper plate corresponding to the conveyor belt is connected on the adjusting plate. Sheep dung can be cleaned with the conveyor belt arranged on the pedestal. T-shaped needles are arranged on the conveyor belt, such that the dung spread on the ground can be cleaned, such that cleaning efficiency is further improved.

The invention relates to the technical field of fruit tree planting, in particular to a method for planting Taiwan lemon. The method for planting the Taiwan lemon comprises the first step of selecting a land and preparing the land; the second step of field planting; the third step of managing the field; the fourth step of harvesting and pruning and treating; the first step comprises the procedures of conducting deep ploughing and curing on the land at the winter of the year before planting, turning over the land again after beginning of spring of the next year, and digging a Taiwan lemon planting cave; the second step comprises the procedures of applying thoroughly decomposed straw at the bottom of each planting cave, backfilling part soil, planting the Taiwan lemon seedlings, backfilling the soil, watering field planting water, and digging furrows in a ridge and applying a ground fertilizer after the seedlings survive; the third step comprises the procedures of applying a fertilizer in time, watering or draining away water in time, preventing and treating insect diseases, and thinning fruits in time; the fourth step comprises the procedures of picking the Taiwan lemon after the Taiwan lemon is mature. According to the method for planting the Taiwan lemon, the growth characteristics of the Taiwan lemon are followed, the lemon fruits are big, orderly, pleasing to the eye, and shiny in color and luster, the main quantity of the Taiwan lemon is increased, and the phenomena of acidification and hardening to be degraded of the soil through continuous planting are not caused.

The invention discloses a shallow shaft side infiltrating irrigation water saving irrigation method. Compared with the prior art, the method is high in technical content, low in work amount, low in facility cost, and small in floor space of a main facility, and ground operation is not influenced. Equipment is not needed to move in a production process, and manpower and energy are saved. No pipeline exists underground, and ploughing and turning up soil are not influenced. A self-flowing method is used, and almost not power is needed in an irrigation process. Water is irrigated from the lower part of a plough layer, irrigated water does not infiltrate through a soil surface, so surface soil continuous permeability is maintained, and breath of roots of plants is not interrupted, and development of the plants is not inhibited. The method would not make nutrition be washed away. The surface of soil keeps a dried state all along, and the soil layer is loose, air and optothermal are sufficient, biochemical action is active, and large amount of nutrient contents and carbon dioxide are generated, so plant growth is flourishing. The method keeps the surface of the soil layer dry and loose, and stops underground water evaporation, so water saving effect is more obvious. The method is worthy of popularizing and using.

The invention discloses a rice respiratory burst oxidase OsRboh(LOC_Os01g25820) and an application thereof in leaf color change and fertility reduction, belonging to the field of biotechnology. The vector is a plant expression vector containing double 35S promoters and a rice OsRboh(LOC_Os01g25820) gene. Due to overexpression of OsRboh(LOC_Os01g25820) in rice, the leaf color of the obtained transgenic plant turns yellow, the content of hydrogen peroxide is increased, and the fertility is obviously reduced. The results indicate that the OsRboh(LOC_Os01g25820) plays an important role in the rice development process, and a new gene resource is provided for studying plant development; and the OsRboh(LOC_Os01g25820) also can be used as a potential tool in molecular breeding and genetic improvement so as to improve the plant form.

The invention belongs to the technical field of gene engineering application, and particularly relates to the application of a rice FAH gene in rice fertility control. Expression analysis for the rice FAH gene shows that the gene has an extremely high expression quantity in a rice young panicle; after being connected and recombined with a plant interference expression vector, the gene is transferred into rice Nipponbare, that the expression level of the gene in transgenetic rice is reduced and the pollen viability of the transgenetic rice is reduced are found, so that infertility of the plant is realized. Therefore, by expression interference with the gene in the rice, the expression level of the gene in the rice is reduced, and male sterile transgenetic rice can be obtained, and the sterile line can be used for producing hybrid rice.

The invention discloses an application of a rice transcription factor OsWRKY53 in negative regulation and control of cold tolerance of rice in a booting stage, aims to provide the new application of the rice transcription factor OsWRKY53 in negative regulation and control of the cold tolerance of the rice in the booting stage, and provides an important theoretical basis for increasing the yield ofthe rice under a low-temperature stress. According to the invention, a new function that the OsWRKY53 participates in regulating and controlling the cold tolerance of the rice in the booting stage isdiscovered, and a molecular mechanism that the OsWRKY53 negatively regulates and controls the cold tolerance of the rice in the booting stage is analyzed. The low-temperature treatment can cause thereduction of the GA content in the rice anther, but the GA content in an oswry53 mutant is obviously higher than that in a wild type. Experiments show that the OsWRKY53 can be directly combined with and inhibit the transcriptional activity of GA related biosynthetic genes OsGA20ox1, OsGA20ox3 and OsGA3ox1, so that the GA content in the rice anther is negatively regulated and controlled, and the cold resistance of the rice in the booting stage is negatively regulated and controlled.

The invention discloses application of OsMSH4 protein and coding gene thereof in regulating and controlling plant pollen fertility. The application of the invention means application of protein (OsMSH4 protein) constituted by an amino acid sequence as shown in sequence 1 in a sequence list or a coding engine (OsMSH4 gene) of the protein in regulating and controlling plant pollen fertility. Experiments prove that in a development process of paddy rice, OsMSH4 protein expression level in the paddy rice is regulated down through a ribonucleic acid (RNA) interference technology, thus resulting in decrease of pollen fertility of the paddy rice compared to wild rice seeds. In combination with a tissue specific suppressor gene expression method, the OsMSH4 gene is applicable to rice hybrid seed production and fertility control; therefore, the application disclosed by the invention is significant in rice breeding, and is capable of increasing rice output, improving rice quality and offering an important biological resource.

The invention discloses a soil remediation and isolation device and belongs to the field of soil isolation and remediation. The soil remediation and isolation device comprises a plate body. Multiple openings are formed in the plate body. Isolation steel plates are fixedly connected to the middle parts of the openings. By the adoption of the soil remediation and isolation device, by arranging the isolation steel plates in the device, pollutants can be effectively prevented from migrating, a soil remediation agent slowly seeps out from second seepage film bags, the migration of the pollutants near the portion, where the soil remediation agent is located, of the plate body and the concentration of harmful matter in the soil are lowered, and the isolation effect is improved; a soil loosening agent slowly seeps out from first seepage film bags, the looseness of the soil is guaranteed, agent delivery main rods and agent delivery support rods delivery an EM microbial agent into auger bits, the EM microbial agent is washed into the soil, and the survival and breeding of polluted microorganisms near the plate body are inhibited effectively; the pollutants in the edges of a field are effectively prevented from migrating to the field, the field soil hardening and lowering of the fertility of the soil are prevented, and the yield of crops or vegetables is guaranteed.

The invention discloses a deposition type microbial fuel cell for oil sludge treatment and synchronous reduction of soil hexavalent chromium, which comprises a shell, a cathode, an anode, a proton exchange membrane, a conductor and a resistor, wherein the cathode is a graphite plate and is placed on the upper part of soil contaminated with hexavalent chromium; the anode is an open cell foam carbonmaterial and is placed in the oil sludge at the lower part of the oil sludge. A proton exchange membrane is arranged between that cathode and the anode; the cathode and the anode are connected with resistors or electrical equipment through wires. The device does not need additional electric energy input, reduces hexavalent chromium in contaminated soil while degrading pollutants such as petroleumhydrocarbons in oil sludge, and microorganisms in anode can generate electric energy by utilizing organic substances in oil sludge. The invention is an economical and effective technology for degrading petroleum hydrocarbons in oil sludge, simultaneously reducing hexavalent chromium in soil and recovering electric energy.

The invention provides a stevia rebaudiana bioactive organic fertilizer, and a preparation method thereof. The stevia rebaudiana bioactive organic fertilizer comprises, by weight, 40 to 50 parts of human and animal excreta, 20 to 30 parts of astragalus sinicus straw, 8 to 10 parts of radix scutellariae herb residue, 10 to 15 parts of banana peel slag, 10 to 15 parts of rapeseed meal, 10 to 15 parts of soybean meal, 10 to 12 parts of bamboo reed biochar, 2 to 3 parts of a microbial agent, 5 to 8 parts of dried yellow mealworm powder, 2 to 3 parts of biotin, 10 to 12 parts of calcium bentonite, 5 to 7 parts of expanded feather meal, and 7 to 9 parts of yeast residue. The stevia rebaudiana bioactive organic fertilizer is prepared via fermentation and mixing. According to the preparation method, modern biotechnology is adopted; scientific combination of the raw materials is realized; the stevia rebaudiana bioactive organic fertilizer contains the comprehensive nutrients, and is capable of providing nutrients needed by the growth of stevia rebaudiana; a plurality of beneficial microorganisms are added; microorganisms in soli are improved; plant disease resistance and fertilizer utilization are improved; soil fertility decline and stevia rebaudiana quality decline caused by applications of chemical fertilizers are avoided.

The invention discloses a method for cultivating tangerine tangerines, which includes site preparation, fertilization, and pruning. Before planting, the soil is deeply plowed and improved to increase soil fertility and air permeability, and overcome soil compaction so that the soil moisture content is high and easy. The phenomenon of rotten roots; in addition, through reasonable fertilization management, long-acting fertilizers and quick-acting fertilizers, organic fertilizers and inorganic fertilizers, soil fertilization and root topdressing, nitrogen fertilizers, phosphorus and potassium fertilizers, timely fertilization, and long-term planting will not cause soil fertility. Decrease, maintain soil fertility, and sustainably plant tangerines, solve the problems of plant degradation, short lifespan, and unstable yield caused by continuous planting, increase production while maintaining the taste and quality of tangerines.

The invention discloses a tartary buckwheat crossbreeding method. The tartary buckwheat crossbreeding method comprises the steps of selecting two tartary buckwheat varieties with relatively large target character difference as a male parent and a female parent respectively, cultivating the male parent tartary buckwheat until entering an initial flowering stage, cultivating the female parent tartary buckwheat until more than five or more than flower buds with the size of 1.5-2 mm are exposed from the top, and starting hybridization; selecting unpollinated flower buds of robust plants from the cultured female parents for castration; and selecting flowers with cracked anthers and more pollen attached to the surfaces from the cultivated male parents for pollination, carrying out bagging for continuous cultivation, harvesting seeds of the female parent plants, and thus obtaining the tartary buckwheat hybrid seeds. Through a tartary buckwheat bud castration artificial hybridization technology, a tartary buckwheat hybrid variety which is high in yield, high in stress resistance, wide in adaptability, excellent and high in yield is bred.

The invention discloses a biochar soil improvement organic fertilizer, which is composed of the following components in parts by weight: 15-20 parts of biochar, 30-50 parts of crop straws, 20-30 parts of livestock and poultry breeding manure, and mosaic Changchun 10-15 parts, 1-2 parts of fermentation agent; wherein, the biochar is composed of the following components in parts by weight: 20-30 parts of plant straw, 5-10 parts of reed flower, and 5-10 parts of peat moss. In addition, the invention also provides a preparation method of biochar soil improvement organic fertilizer. The biochar soil improvement organic fertilizer prepared by the present invention can significantly increase the content of organic carbon, nitrogen, phosphorus, potassium and other nutrient elements in brown soil, improve the nutrient conversion rate and the number of beneficial microorganisms, promote soil restoration, fertilize soil fertility, and enhance soil fertility at the same time. Crop disease resistance, increased yields, and increased income.

Aiming at the current situation that the soil fertility is reduced and the fertilizer utilization rate is low in China, the invention establishes a new process for preparing a novel liquid organic fertilizer by taking waste biomass as a raw material in combination with the advantage of rich waste biomass resources in China. According to the process, the waste biomass is subjected to complete hydrothermal liquefaction under a specific alkaline condition, and the liquefied biomass is used as a novel liquid organic fertilizer, or the liquefied biomass is compounded with a commercial fertilizer toobtain a novel liquid organic fertilizer. The waste biomass is used as the raw material, so that the prepared novel organic fertilizer is low in price; and in addition, the liquid organic fertilizeralso has the advantages of high fertilizer efficiency, complete nutrients, soil remediation function and the like.

The invention relates to a method for extracting arsenic and combustible gas from soil polluted by arsenic by using biotechnology. According to the method, the soil polluted by the arsenic is used as a raw material. The extraction method comprises the following steps: breeding earthworms in the soil polluted by the arsenic and collecting the earthworms rich in arsenic by using a gasification device, a separation device, a gas filtration device and a gas storage tank, namely breeding the earthworms in the soil polluted by the arsenic and collecting the earthworms after four months, intensively airing and gasifying. When the gas flows through the filtration device, an arsenic compound attached to a filtration screen and a combustible gas are obtained; the solid is an arsenic-rich mixture; the earthworms are collected by using a water bath expelling method; the gas filtration device aims at filtering the arsenic to directly obtain an arsenic compound; when the arsenic compound is filtered out of the gas, a combustible gas rich in CO is obtained; and most of the earthworms are pheretima guillemis. The method for extracting arsenic and combustible gas from soil polluted by arsenic by using biotechnology has the beneficial effects that the arsenic in the soil polluted by the arsenic is gathered by the artificially bred earthworms; the secondary pollution to the soil in the overall process is avoided; the investment cost is low; and moreover, the decrease of the soil fertility caused by the damage to the soil structure can be avoided.

The invention relates to a dialysis device for managing soil pollution. The dialysis device for managing the soil pollution comprises a plurality of sand drain pipes with metal tubes and a sand drain pipe installing mechanism, and the metal tubes are connected with a pumping and draining device; the sand drain pipe installing mechanism comprises a steel mould pipe with a pile shoe, a main upright and a lifting support frame; the lower part of the lifting support frame is connected with a plurality of top pressure levers, and the lifting support frame is aligned to and presses the top of the sand drain pipe, the top pressure levers are matched with the steel mould pipe; the upper part of the top pressure levers is connected with the lifting support frame, a vibratory hammer is connected under the main upright, a connecting beam with a plurality of steel mould pipes is connected under the vibratory hammer; and the sand drain pipe comprises a cloth bag filled with sands, the metal pipes are installed in the center of the sand drain pipe, the sand drain pipe is provided with a plurality of passing holes along the length direction of the pipe, the periphery of the sand drain pipe is provided with a metal grid packaged by abrasive cloth, and the size of the metal grid is smaller than the diameter of the sands. The dialysis device for managing the soil pollution has the advantages of the simpler structure, smaller equipment investment, and lower treatment cost.

The application of rice transcription factor OsWRKY53 in negatively regulating the cold tolerance of rice booting stage, the purpose of the present invention is to provide a new application of rice transcription factor OsWRKY53 in negatively regulating the cold tolerance of rice booting stage, which provides a basis for improving the yield of rice under low temperature stress. an important theoretical basis. The present invention discovers the new function of OsWRKY53 involved in regulating the cold tolerance at the booting stage of rice, and analyzes the molecular mechanism of OsWRKY53 negatively regulating the cold tolerance at the booting stage of rice. Low temperature treatment resulted in a decrease in GA content in rice anthers, but the GA content in the oswrky53 mutant was significantly higher than that in the wild type. Experiments have shown that OsWRKY53 can directly bind to and inhibit the transcriptional activity of GA-related biosynthetic genes OsGA20ox1, OsGA20ox3, and OsGA3ox1, thereby negatively regulating the GA content in rice anthers and negatively regulating the cold tolerance of rice at booting stage.

The invention discloses a radish planting method. The method comprises the steps of land maintaining, seed selection, land preparation, pit digging and fertilization, sowing, film covering, film removing, seedling transplanting, topdressing and insect killing, and chicken manure and plant ash are used for land maintaining. According to the method, soil is subjected to land maintaining before sowing, so that the soil meets radish growth conditions, soil acidification and soil fertility reduction can be effectively prevented in the long-term radish planting process, no organic fertilizer is usedin the cultivation process, and chemical pollution to the soil can be avoided; and the radish yield is increased by combining the processes of seed selection, soil preparation, pit digging and fertilization, sowing, film covering, film removing, seedling transplanting, topdressing and insect killing and the like, the blackening phenomenon of radishes is avoided, and the edible safety of radish food is guaranteed.

The invention discloses a method for intercropping wax apples, pineapples and pawpaws, and belongs to the technical field of crop intercropping. The method comprises the steps of soil preparation, variety selection, planting time selecting, sprout treatment, planting method selecting, fertilization, field management, pest control, fruit harvesting and the like. By scientifically setting the line spacing and row spacing among the wax apples, the pineapples and the pawpaws, reasonable interplanting is carried out, simplified and labor-saving cultivation management is adopted, utilization of landresources is maximized, weed growth is restrained, water and soil loss is reduced, the ecological environment is improved, the utilization rate of fertilizer is increased, and the soil fertility is increased. According to the method, the production cost is reduced, economic benefits are increased, and the method is suitable for application and popularization.

The invention discloses a method for preparing a photosensitive male-sterility material of rice and a related gene. The method for preparing photosensitive male-sterility rice comprises the following step: reducing the abundance of a protein RMS1 in target rice, reducing the activity of the protein RMS1 in the target rice or reducing the content of the protein RMS1 in the target rice to obtain the photosensitive male-sterility rice. The protein RMS1 is A1) or A2) as follows: A1) an amino acid sequence of the protein RMS1 is shown as SEQ ID No. 1 in a sequence listing; and A2) a homologous protein which has 98% or more of identity with the A1) and is derived from rice. According to the method, the photosensitive male-sterility material of the rice is obtained by controlling a RMS1 gene of the rice and a coding protein of the RMS1 gene, and conversion of the rice fertility under different illumination conditions is achieved.

The invention relates to a production method of a special fertilizer for rice, belonging to the technical field of biological fermentation. The special fertilizer is prepared by the steps of adding seventh microelements are into nitrogen-fixing bacteria and spore bacteria and mixing organic matter cake pulp, chicken manure and inorganic fertilizer nitrogen phosphorus and potassium, is prepared according to the nutritional components required by the growth of the vegetables, the soil texture of rice in a paddy field, the plant diseases and insect pests occurring in the growth process of the rice,, the growth environments and growth characteristics of the rice and can be used for replacing traditional fertilizers.

The invention relates to a special fertilizer for konjak and belongs to the field of biofermentation. The fertilizer is prepared by adding seventeen microelements, mixing an organic matter meal, humicacid soil and chicken manure and an inorganic fertilizer nitrogen phosphorus and potassium according to nitrogen-fixing bacteria, nodule bacteria, phosphorite-dissolving bacteria and potassium-dissolving bacteria in light of nutritional components needed by growth of konjak, plant diseases and insect pests, growing environment and growing characteristics.

The invention provides a watermelon rootstock breeding method and application thereof, which relates to the technical field of rootstock breeding. The method of the invention comprises the following steps: hybridizing medicinal watermelon serving as male parent and seed watermelon serving as female parent to obtain F1-generation seeds; selecting the seeds of F1-generation with self-fertility lessthan 30 percent and seeds of F2-generation with self-sterility to be combined, and hybridizing the seeds to obtain a novel watermelon variety. The novel rootstock variety bred by the invention can sufficiently play the growth advantages and self-protection effects of the rootstock variety, also has strong disease resistance, and has double resistance of seed watermelon and medicinal watermelon; the seed germination rate is high, the grafting affinity is good, and quality is good; the plant is strong in growth, stable in fruit setting and is not suitable for overgrowth; the self-pollination ofthe rootstock is poor, and the seed germination rate is low even if in success of the self-pollination of a small amount of seeds; and the parent material of the rootstock can be effectively protectedagainst loss.