486 results about "Manihot esculenta" patented technology

The invention belongs to the technical field of morchella esculenta planting, and particularly relates to a non-grain-based morchella esculenta nutrient medium, a nutrient bag, a preparation method and a morchella esculenta planting method. The nutrient medium can be prepared by taking cassava as a main material and rice husks and mushroom dregs as auxiliary materials, controlling the amylopectin content and the aeration porosity within a preset range by adjusting the ratio of the raw materials, and adding quick lime, gypsum and the like as pH value regulators. The problem that a traditional nutrition bag depends on grain resources such as wheat is solved, and resource recycling is achieved through cassava and agricultural waste mushroom dregs and rice husks. Particularly, under the condition of optimal proportioning, the fruiting amount of the morchella in unit area is obviously increased compared with that of a traditional wheat substrate, and the raw material cost is reduced. Moreover, the key influence of the synergy of the amylopectin content and the aeration porosity in the non-grain-based morchella esculenta nutrition medium on morchella esculenta fruiting is found, and a reference direction is provided for screening of the non-grain-based morchella esculenta nutrition medium.

The invention relates to the technical field of pet supplies, in particular to degradable cat litter and a cat litter preparation process, adopted corn starch, cassava starch and wheat starch are all natural plant components and are easy to biodegrade; meanwhile, calcium carbonate is adopted as a filling agent, so that the hardness and the stability of the cat litter are improved, the hygroscopicity of the cat litter is improved, and the caking property is indirectly enhanced; the added edible guar gum is used as a natural adhesive, so that the binding force among cat litter particles can be remarkably improved, the caking property of the cat litter is enhanced, and the phenomenon that the cat litter sticks to the bottom of a basin after being shoveled out is reduced, and the problems that the cat litter in the prior art is difficult to degrade, poor in environmental protection property, weak in caking property and poor in environmental protection property are solved in this way. The technical problem that the spatula sticks to the pot bottom is solved.

The invention relates to the technical field of hydrogel preparation, in particular to a preparation method of novel biomass hydrogel. The biomass hydrogel prepared by the invention overcomes the problems of poor hygroscopicity and poor recyclability of traditional hydrogel in a low-humidity environment. The cassava starch is oxidized by sodium periodate to prepare dialdehyde starch, so that the hydrophilicity is enhanced; sodium alginate is coated and combined with an epoxy group to covalently bond and fix lithium chloride, so that salt slow release and low-humidity deliquescence are realized; the ink containing the nano carbon material is introduced, so that efficient photo-thermal conversion is realized; meanwhile, after the substances are subjected to three-dimensional crosslinking, a polymer network-shaped gel structure is formed, and gradient drying and rehydration control are combined, so that the porous structure and the mechanical strength are guaranteed. The prepared hydrogel can quickly absorb moisture and efficiently perform photo-thermal evaporation in a low-humidity environment, and is good in recyclability.

The invention discloses an application of Burkholderia gladioli XC-1 in prevention and treatment of plant diseases, the 16S rRNA sequence of the Burkholderia gladioli XC-1 is as shown in SEQ ID NO: 3, and the plant diseases are litsea cubeba shoot blight, okra root rot, durian leaf spot disease, cubilose fruit canker, agilawood root rot or cassava leaf spot disease. The invention finds that the Burkholderia gladioli XC-1 has better development value and application potential in the prevention and treatment of various plant diseases, and a new microbial strain resource is provided for the prevention and treatment of various plant diseases.

The invention provides an application of a TGBp1 gene, or a TGBp1 gene coding protein, or a recombinant vector or host bacteria containing a TGBp1 gene coding region in down-regulation of the MeGRXC3 expression level. Researches find that TGBp1 and MeGRXC3 interact with each other, so that the growth ability of yeast in an SD / -Leu / -Trp / -His / -Ade auxotroph culture medium can be improved, the expression of MeGRXC3 can be down-regulated, the active oxygen content of tobacco leaves for co-expression of TGBp1 and MeGRXC3 is improved, and the growth ability of the yeast in the SD / -Leu / -Trp / -His / -Ade auxotroph culture medium is improved. Research results lay a theoretical foundation for breeding of common cassava mosaic virus disease resistance.

Raw material starch of the oil processed starch contains waxy cassava starch. And a method for producing cooked edible meat, which comprises heating and cooking the edible meat to which the fat-processed starch is attached. And a method for improving the texture of cooked edible meat, said method comprising heating and cooking the edible meat to which the fat-processed starch is attached.

The invention belongs to the technical field of molecular biology, and particularly relates to a cassava plant height SNP molecular marker, a KASP primer group and application of the cassava plant height SNP molecular marker and the KASP primer group. According to the cassava plant height SNP molecular marker, the allelic variation basic group of the SNP molecular marker site is C / T, and the allelic variation basic group is located at the 3091721 site of a cassava genome 6 # chromosome. The SNP molecular marker is remarkably related to the cassava plant height character, in practical application, the cassava plant height phenotype can be subjected to early-stage auxiliary prediction and identification only by utilizing the KASP primer group to carry out PCR amplification on cassava germplasm leaf sample DNA and detecting a fluorescence signal of the cassava germplasm leaf sample DNA, operation is easy and convenient, cost is low, selection efficiency is high, and the SNP molecular marker can be used for early-stage auxiliary prediction and identification of the cassava germplasm plant height phenotype. Target single plants or a large number of offspring with potential excellent quality can be efficiently screened, the cassava breeding period is shortened, and the breeding efficiency is improved.

The invention provides an application of an AC2 gene, or an AC2 gene coding protein, or a recombinant vector or host bacteria containing an AC2 gene coding region in reducing the expression level of AtSGS3, and / or reducing the expression level of MeSGS3, and / or reducing an SGS3 / RDR6 compound. Researches find that SLCMV AC2 interacts with AtSGS3 and MeSGS3, the growth ability of yeast in an SD / -Ade / -His / -Leu / -Trp auxotroph culture medium and an SD / -Ade / -His / -Leu / -Trp auxotroph culture medium added with 3-AT can be improved, expression of AtSGS3 and MeSGS3 can be down-regulated, an SGS3 / RDR6 compound can be reduced, and a research result lays a foundation for clarification of a molecular mechanism of SLCMV AC2 regulation and control of host RNA silencing.

The invention discloses environment-friendly cassava cat litter and a preparation method thereof, and belongs to the technical field of pet supplies, and the environment-friendly cassava cat litter is prepared from the following raw materials in parts by weight: 45-55 parts of cassava starch, 20-30 parts of cassava peel, 8-15 parts of corn starch, 8-12 parts of water hyacinth fiber, 5-10 parts of bamboo fiber, 2-4 parts of propolis and 1.5-3.0 parts of mussel mucin. The raw materials are subjected to step-by-step synergistic enzymolysis and step-by-step fermentation to obtain the environment-friendly cassava cat litter. According to the mode, natural raw materials are combined, and the preparation process of step-by-step enzymolysis and step-by-step fermentation is adopted, so that the antibacterial performance and water absorption performance of the cat litter are improved, the defecation comfort and cleanliness of pet cats are improved, sanitation and health of pets and family environments are guaranteed, meanwhile, the product can be completely degraded in the natural environment after being used, and the environment is protected. The cat litter does not generate permanent solid waste like bentonite and silica gel cat litter, and is very environment-friendly.

The invention provides an SNP (Single Nucleotide Polymorphism) site which is located at the 296th site of a MeGRXC4 gene coding region, the basic group is G or C, and the sequence of the MeGRXC4 gene coding region is as shown in SEQ ID NO: 1 or SEQ ID NO: 2. The SNP located at the 296th site of the MeGRXC4 nucleotide sequence is identified to be closely associated with the drought resistance of the cassava from the big data level for the first time, detection is facilitated, accuracy and reliability are achieved, operation is convenient, the drought resistance of the cassava is identified through the SNP sites, the accuracy is high, the method is not affected by the growth period of the cassava, selection can be conducted in the seedling period, the breeding efficiency is remarkably improved, and the method is suitable for large-scale popularization and application. In addition, when the basic group of the SNP site is G, MeGRXC4 can significantly improve the drought resistance of cassava, and the invention has important significance for revealing the relationship between allele selection and drought resistance character formation in the domestication process of cultivated cassava, and provides gene resources and scientific basis for cultivating new varieties of drought-resistant high-yield cassava by using key genes.

The invention provides the cassava low-temperature-resistant MeSR45-2 gene cloned from cassava for the first time, the expression of the MeSR45-2 gene in cassava is inhibited under low-temperature stress, and research shows that the gene can significantly improve the low-temperature resistance of cassava, reduce the malondialdehyde content, proline cumulant and the like in cassava, reduce leaf damage under low-temperature treatment and improve the yield of cassava. Terminal buds under low-temperature treatment are not affected and can normally grow, and expression of various protein genes is regulated and controlled. The invention provides a new candidate gene for research on improvement of plant low temperature resistance and the like, and also provides a new gene resource for cultivation of a new variety of low temperature resistant cassava and construction of a new variety of transgenic cassava.

The utility model discloses a cassava starch residue-liquid separation device which comprises a separation box, an annular groove is formed in the separation box, an extrusion cylinder is arranged in the middle of the annular groove, a rotating shaft is rotationally arranged in the extrusion cylinder, a driving motor for driving the rotating shaft to rotate is arranged on the rear side of the separation box, and extrusion auger blades are welded to the outer side of the rotating shaft. A dreg scattering box is arranged on the front side of the separation box, a discharging opening communicated with the dreg scattering box is formed in the front end of the extrusion cylinder, the density of the extrusion auger blades is gradually increased in the direction from the feeding opening to the discharging opening, and a plurality of liquid outlets with filter screens are formed in the extrusion cylinder. Compared with the prior art, the utility model has the advantages that the packing auger blades with gradually increased density are matched with the annular groove and the plurality of liquid outlets with the filter screens, so that dregs can be gradually extruded while slurry water is filtered, and the dregs which are extruded into blocks can be scattered by matching with the scattering box on the rear side.

The invention relates to the technical field of agricultural paper, in particular to double anti-mite fruit cultivating bag paper and a preparation method thereof. The preparation method comprises the following steps: pulping: respectively pulping natural-color bamboo pulp and natural-color softwood pulp, then mixing, adding water, and uniformly mixing to obtain pulp; papermaking: sequentially adding iron oxide yellow, aluminum sulfate, rosin size and a wet strength agent into the pulp, adding water for dilution, and drying after papermaking to obtain fruit cultivating bag body paper; sizing: taking oxidized cassava starch, adding water, preparing starch slurry, heating, continuously stirring until the starch is completely gelatinized, taking starch gelatinized liquid, adding neem oil, putting into a high-speed homogenizing emulsifying machine, emulsifying to obtain neem oil anti-mite emulsion, uniformly mixing the neem oil anti-mite emulsion with wax emulsion to obtain anti-mite glue liquid, immersing the fruit cultivating bag body paper into the anti-mite glue liquid, and drying to obtain the fruit cultivating bag. And taking out and drying to obtain the double anti-mite fruit cultivating bag paper. The composite material has physical barrier and long-acting anti-mite functions, and the risk of insect attack invasion is greatly reduced.

The invention provides an SV molecular marker related to cassava branched chain and amylose content and application, and belongs to the technical field of molecular biology, the SV molecular marker is Chr142634494926345058 and is used for predicting the cassava branched chain and / or amylose content; a primer group for amplifying the SV molecular marker comprises a forward primer, a reverse primer, a forward primer, a reverse primer and a reverse primer, wherein the sequence of the forward primer is 5 '-AGATCATACAGCCCATTTT-3'; the sequence of the reverse primer is 5 '-ATCCACCAAAGTTCGTAA-3', and the sequence of the reverse primer is 5 '- The primer group is used for preparing the kit; the primer group or the kit is used for carrying out PCR amplification on the DNA of the cassava to be detected so as to predict the branched chain and / or amylose content of the cassava. The SV molecular marker provided by the invention can accurately and efficiently predict the high or low content of branched chain and amylose of cassava without planting and waiting for cassava adult plants, and greatly improves the breeding selection efficiency.

The invention provides a sow feed added with puffed rice and a preparation method of the sow feed. The sow feed comprises the following components in parts by weight: 30-50 parts of puffed rice, 10-20 parts of soybean meal, 10-20 parts of wheat bran, 2-6 parts of sugar / beet pulp polypeptide, 20-30 parts of mixed forage powder, 2-6 parts of pea fibers, 2-6 parts of pennisetum purpureum dietary fibers, 5-15 parts of manioc waste, 4-10 parts of a haematococcus extract, 2-8 parts of a cercis chinensis extract, 1-4 parts of a composite strain, 0.1-0.6 part of temperature-resistant phytase and 0.5-0.9 part of myristic acid. According to the present invention, the production method is simple, and the prepared sow feed can improve the lactation yield of sows, increase the number of immune globulins in milk, improve the immunity of piglets, improve the intestinal microbiological structure and the intestinal morphology of the piglets, reduce the diarrhea of the piglets, improve the immunity of the piglets, improve the immunity of the piglets, improve the immunity of the piglets, and improve the immunity of the piglets. The growth and development of piglets are promoted.

The invention relates to a wet type multifunctional dust suppressant for a coal mine and a preparation method thereof. The wet type multifunctional dust suppressant consists of a component A and a component B, wherein the component A is prepared from surfactants such as AP470Z, Tween-80, Dow TRITON CF-10, Yinhuo Dynol 607 and Digao TEGO245, as well as glycerol, a de-foaming agent and industrial water; the component B is prepared from pregelatinized cassava starch, high-viscosity yellow dextrin, sodium carbonate, potassium carbonate, sodium hydroxide, industrial water and the like. And uniformly mixing the component A and the component B according to a mass ratio of 1: 1 to prepare the wet type multifunctional dust suppressant for the coal mine. The wet type multifunctional dust suppressant for the underground coal mine has obvious effects of reducing coal and rock dust and removing hydrogen sulfide gas, and is excellent in comprehensive performance, convenient to produce and simple to use. The dust suppressant can also be used for dust prevention and dust falling in the fields of roads, sand fields and the like, the dust suppressant can be sprayed to underground roadways and working faces prone to generating dust, the dust suppressant can rapidly permeate into oily pulverized coal, the pulverized coal is coagulated and settled, meanwhile, hydrogen sulfide gas in air and coal rock masses can be decomposed, and the purposes of dust falling and hydrogen sulfide gas removal are achieved.

The invention belongs to the technical field of biology, and particularly relates to a cassava MeTGA9 gene and application thereof. The nucleotide sequence of the cassava MeTGA9 gene is as shown in SEQ ID NO: 1. The cassava MeTGA9 gene is over-expressed in cassava, so that the plant height and the root length of the transgenic cassava can be remarkably reduced. The MeTGA9 gene provided by the invention has important significance in the aspects of cassava genetic improvement, cultivation of new cassava dwarf varieties, cultivation of new cassava varieties suitable for interplanting and the like, and provides valuable gene resources and theoretical basis for cultivation of new cassava varieties with excellent plant types.

The invention discloses a preparation method of a nano embedding material based on a low-temperature superfine grinding technology, and belongs to the technical field of modified nano materials. The method comprises the following steps: cleaning and slicing fresh beautiful millettia root and stem, performing programmed liquid nitrogen freezing, and performing jet milling to obtain nano powder; the preparation method comprises the following steps: taking anionic polysaccharide, neutral polysaccharide nanoparticles, nano-modified cassava starch and deionized water, magnetically stirring, carrying out ultrasonic treatment, and mixing for 30-45 minutes; mixing the wall material solution with the nano-powder, performing ultrasonic treatment to form a coating solution, adding calcium chloride and Tween 80, and stirring; and spraying a magnesium chloride solution at the voltage of 40-60kV and the flow rate of 0.5-1.5 mL / h, stirring, mixing with a chitosan solution according to the mass ratio of 1: (2-4), adjusting the pH value, stirring, and freeze-drying to obtain the product. The millettia specisoa champ embedding method retains the active ingredients of millettia specisoa champ, improves the embedding efficiency by 85-96%, is stable, controls release, and is suitable for health care products and drug carriers.

The invention is suitable for the technical field of disease and pest detection and early warning, and provides a cassava disease and pest detection and early warning system. Comprising a satellite remote sensing module, an unmanned aerial vehicle spectrum acquisition module, a meteorological sensing network, a soil parameter monitoring module, a multi-source data fusion analysis module, an intelligent inspection path planning module, a handheld spectrum detection terminal, a terminal server and a cloud early warning platform. The satellite remote sensing module and the unmanned aerial vehicle spectrum acquisition module are used for positioning and spectrum monitoring, and the meteorological sensing network and the soil parameter monitoring module are used for acquiring environmental soil data; the multi-source data fusion analysis module screens a high-risk area, the intelligent routing inspection path planning module optimizes a detection path, and the handheld spectrum detection terminal performs routing inspection based on the optimized path; the terminal server runs a lightweight AI detection module to complete deep analysis and carry out feedback; the cloud early warning platform generates a customized prevention and treatment scheme; and the efficiency and accuracy of disease and pest detection are effectively improved.

The invention relates to the technical field of feed and fermentation, in particular to compound feed for promoting healthy growth of micropterus salmoides as well as a preparation method and application of the compound feed. The compound feed is prepared from the following components in parts by weight: 30 to 40 parts of fish meal, 10 to 15 parts of chicken meal, 0 to 10 parts of tenebrio molitor protein, 9 to 11 parts of fermented soybean meal, 7.5 to 9.5 parts of egg powder, 1 to 6 parts of beer yeast powder, 4 to 10 parts of flour, 2 to 3.5 parts of cassava starch, 1 to 3 parts of fish oil, 0.6 part of monocalcium phosphate, 0.3 to 1 part of compound vitamin, 1.2 to 3.7 parts of mineral substance mixture, 2 to 3 parts of EPA (eicosapentaenoic acid) and 3 to 4.4 parts of DHA (docosahexaenoic acid). According to the compound feed disclosed by the invention, the fermented soybean meal and the tenebrio molitor protein are combined to replace part of fish meal, so that the cost of the feed is effectively reduced, the organism immunity and disease resistance of the micropterus salmoides are improved, the intestinal health of the micropterus salmoides is improved, and the culture benefit is comprehensively improved.

The invention relates to the technical field of biology, in particular to a method for relieving high-starch-induced liver injury and glucose metabolism disorder of perches. The feed formula provided by the invention comprises the following components in percentage by weight: 20-22% of cassava starch, 2-6% of mulberry leaf polysaccharide and the like. The mulberry leaf polysaccharide and high-content starch in the feed form efficient synergy, so that the growth performance of the weever is remarkably improved, accumulation of liver glycogen and fat is effectively reduced, and the health condition of the liver is remarkably improved; meanwhile, the blood sugar regulation capability of the weever is also optimized, the insulin resistance caused by high starch diet is reduced, and the insulin sensitivity is enhanced; and by activating a PI3K / Akt signal path and other mechanisms, a glucose metabolism path is optimized, and efficient utilization of energy is promoted. The feed disclosed by the invention is economical and efficient in formula, provides solid scientific support for healthy culture of perches, and powerfully promotes sustainable development of aquaculture industry.

The invention provides an application of a CP gene, or a protein encoded by the CP gene, or a recombinant vector or host bacteria containing a CP gene coding region in down-regulation of the MeGRXC3 expression level. Researches find that CP and MeGRXC3 interact with each other, so that the growth ability of yeast in an SD / -Leu / -Trp / -His / -Ade auxotrophic culture medium can be improved, cell autophagy can be activated, the expression of MeGRXC3 can be down-regulated, and the active oxygen content of plant tissues co-expressed with MeGRXC3 can be increased. Research results lay a theoretical foundation for breeding of common cassava mosaic virus disease resistance.

The present invention provides a method for producing a saccharified product of cassava leftovers, the method capable of reducing the energy required for pulverizing the cassava leftovers for the purpose of improving the fluidity of the cassava leftovers, or reducing an increase in the energy required for heating in a gelatinization step including addition of water or for cooling after the gelatinization, or reducing the energy required for use as a plant after the saccharification step including addition of water, or reducing any two or more of these energies. Also provided is a method for producing a fermented product derived from cassava leftovers using a saccharified product of cassava leftovers obtained by the aforesaid method for producing a saccharified product of cassava leftovers. The method for producing a saccharified product of cassava leftovers includes: a gelatinization step for heating and gelatinizing the cassava leftovers by directly blowing steam thereto in a solid transport device of a kneader or conveyor type; and a saccharification step for saccharifying a gelatinized product of the cassava leftovers with a saccharifying enzyme. The method for producing a fermented product derived from cassava leftovers includes a fermentation step for fermenting a saccharified product of cassava leftovers with a microorganism, the saccharified product being obtained by the aforesaid method for producing a saccharified product of cassava leftovers.

The invention relates to the technical field of termite trapping and killing, and particularly discloses an environment-friendly termite trapping and killing strip and a preparation method thereof. The environment-friendly termite trapping and killing strip is prepared from microcrystalline cellulose, sodium carboxymethyl cellulose, potassium sorbate, pine sawdust, tapioca flour, xanthan gum and killing microcapsules. The killing microcapsule comprises a capsule wall and a capsule core, wherein the capsule core is prepared from the following raw materials: triflumuron, diflubenzuron, ammonium chloride, petroleum ether and sodium dodecyl benzene sulfonate; the capsule wall is prepared from the following raw materials: modified chitosan, sodium alginate, modified corn straw powder, Arabic gum and a sugarcane extract. According to the environment-friendly termite trapping and killing strip, all the components are matched, the excellent insecticidal effect is achieved, the pesticide can be slowly released through the killing microcapsules, the insecticidal time is prolonged, and the prepared trapping and killing strip can kill insects for a long time.

The invention provides a cassava low-temperature-resistant MeSR34b gene. The CDS sequence of the cassava low-temperature-resistant MeSR34b gene is as shown in SEQ ID NO: 1. The cassava low-temperature-resistant MeSR34b gene is cloned from cassava for the first time, the expression of the MeSR34b gene in the cassava is inhibited under low-temperature stress, and research shows that the gene can remarkably improve the low-temperature resistance of the cassava, increase the malondialdehyde content, the proline cumulant and the like in the cassava, reduce oxidative damage of cells, yellow newborn leaves of the cassava and improve the yield of the cassava. The expression of various protein genes is regulated and controlled. The invention provides a new candidate gene for research on improvement of low temperature resistance, oxidative damage resistance and the like of plants.

The invention discloses a type III pullulan hydrolase mutant with improved enzyme activity and a construction method thereof, and relates to the technical field of gene engineering and enzyme engineering. The amino acid sequence of the III type pullulan hydrolase mutant is as shown in SEQ ID NO. 3. According to the present invention, on the basis of the type III pullulan hydrolase TK-PUL from Thermococcus kodakarensis, the type III pullulan hydrolase mutant with the improved enzyme activity is developed through the site-specific mutagenesis, such that the type III pullulan hydrolase mutant with the improved enzyme activity is provided; the specific enzyme activity of the III type pullulan hydrolase mutant to cassava starch is improved by 1.83 times. The cassava starch degradation capacity of the III type pullulan hydrolase mutant is obviously improved, the enzymatic property of the III type pullulan hydrolase mutant meets the requirements of the production and preparation process of the straight-chain maltooligosacharide, and the application potential of the III type pullulan hydrolase mutant in the production and preparation of the straight-chain maltooligosacharide is improved.

The invention discloses a soil remediation agent as well as a preparation process and a preparation system of the soil remediation agent. The soil remediation agent is prepared from the following raw materials: citric acid modified manioc waste, hydrotalcite-like compound, fly ash and a microbial agent, the preparation process of the soil remediation agent comprises the following steps: S1, adding the citric acid modified manioc waste, the hydrotalcite-like compound and the fly ash into preparation equipment according to a ratio; the preparation system comprises preparation equipment, the preparation equipment comprises an annular supporting seat, and a preparation cylinder is mounted on the annular supporting seat. According to the soil remediation agent, the adsorption effect on heavy metal cadmium is remarkably improved, the soil flora environment is improved through the microbial agent, plant growth is promoted, the multiple production steps of mixing, grinding, drying and the like are integrated in the same equipment, integrated production of the soil remediation agent is achieved, and the soil remediation agent is suitable for large-scale production. Therefore, the running times of raw materials among different devices are remarkably reduced, the workload of workers and the workload during production are reduced, and the production efficiency is improved.

The utility model relates to a cassava and soil separating device for cassava harvesting. The cassava and soil separating device comprises a first-stage potato and soil separating mechanism, a second-stage potato and soil separating mechanism and a transmission mechanism used for driving the first-stage potato and soil separating mechanism and the second-stage potato and soil separating mechanism. The first-stage potato-soil separation mechanism comprises a rolling elastic tooth assembly for rotating; the orbital transfer assembly is static relative to the rolling elastic claw assembly and is used for changing the motion trail of the rolling elastic claw assembly; the second-stage potato-soil separation mechanism is positioned behind the first-stage potato-soil separation mechanism and comprises a connecting belt; the guide wheel rod is located on the periphery of the connecting belt and used for changing the moving track of the connecting belt; the stepped separating sieves are transversely arranged between the connecting belts and form certain included angles with the planes of the upper ends of the connecting belts; due to the fact that the first-stage potato-soil separation mechanism used for stripping soil blocks is arranged, after the soil blocks are stripped through the first-stage potato-soil separation mechanism, the soil blocks can be effectively prevented from entering the second-stage potato-soil separation mechanism.

The invention belongs to the field of biomass-based functional materials, relates to a difunctional coating based on enzymolysis modified cassava starch as well as a preparation method and application of the difunctional coating, and innovatively solves the technical problem that a single coating gives consideration to oil prevention and water absorption through a synergistic technical path of pretreatment and composite enzymolysis. The core mechanism is as follows: the starch particle structure is destroyed through pretreatment, and the degradation degree of starch is accurately controlled through the synergistic effect of alpha-amylase and saccharifying enzyme, so that an unexpected technical effect is achieved, and an enzymolysis product with a film-forming skeleton (medium molecular weight dextrin) and a hydrophilic unit (small molecular saccharide) is formed; meanwhile, a compact and continuous network structure can be formed by a film-forming framework, and grease permeation is blocked; and the hydrophilic unit endows the coating with a rapid capillary water absorption effect.

The invention discloses an alternate intercropping cultivation method for effectively preventing and controlling tetranychus cinnabarinus of cassava. The method specifically comprises the following steps: 1) planting in the first year, interplanting cassava and Chinese mesona herb (corn) in proportion, performing field management, and harvesting; wherein the Chinese mesona herb and the cassava are firstly planted in spring, the corn is planted in autumn after the Chinese mesona herb is harvested, and finally the corn and the cassava are harvested; (2) during planting in the second year, cassava and Chinese mesona herb (corn) are planted by adopting an alternate intercropping method; one alternate intercropping period is two years, and cassava, mesona chinensis and corn are planted in turn in the same planting zone. According to the method, interannual crop rotation is achieved through alternate intercropping cultivation, soil continuous cropping obstacles can be relieved, soil health is kept, strong seedlings are cultivated, the growth vigor of cassava is enhanced, and the disease and pest resistance of cassava is improved; meanwhile, natural enemies can be protected, the life cycle of diseases and insect pests is disturbed, the occurrence rate of the diseases and insect pests is reduced, accordingly, tetranychus cinnabarinus is reduced, and agricultural control over the tetranychus cinnabarinus in the cassava field is