9087results about "Plant protective coverings" patented technology

Apparatus is provided for use with a steerable catheter that includes a thumb control adapted to control a deflection of a distal tip of the catheter. The apparatus includes a robot, including an end-effector, adapted to be coupled to the thumb control, and a controller, adapted to drive the end-effector to deflect the distal tip by manipulating the thumb control.

The invention provides a degradable mulch film and a preparation method thereof, which belongs to the technical field of high polymer materials. The degradable mulch film comprises, by weight, 10 to 20 parts of polyethylene, 10 to 20 parts of polypropylene, 2 to 3 parts of polyvinyl alcohol, 1 to 2 parts of poly propylene carbonate, 3 to 5 parts of polylactic acid, 1 to 2 parts of poly(3-hydroxybutyrate-co-4-hydroxybutyrate), 4 to 6 parts of chitosan, 2 to 4 parts of methyl-polyolefin resin, 2 to 4 parts of polypropylene glycol, 0.5 part of nanometer titanium dioxide, 0.5 part of a photolysis agent, 5 to 15 parts of an inorganic filling material and 5 to 15 parts of starch. The degradable mulch film provided by the invention has the following advantages: 1, a fast degradation fast, and a fast degradation rate of more than 35% within 120 d; 2, high strength, transverse tensile strength of more than 16 MPa and vertical tensile strength of more than 17 MPa.

A system for growing plants in adverse circumstances is composed of a great container for growing plants in it, the matrix loaded in said great container, and a water storing and controlling unit communicated via water tube with water tank and arranged in said great container for contacting with said matrix.

A plant air purifier and associated method for purifying air, comprising: at least one grow container; a filter bed comprising a surface which is horizontal within 20 degrees of a horizontal plane; at least one plant which grows within the filter bed; a reservoir for containing water for watering the at least one plant; a mechanical watering device which waters the filter bed from the top down; a pump for pumping water from the reservoir to and through the mechanical watering device; and an air propulsion mechanism for propelling air through the filter bed.

An outdoor planter system with a central opening through which a plant may grow. The planter portion surrounding the central opening is inwardly and downwardly sloped, generally impervious to liquid and light, and thereby directs liquid to the central opening while simultaneously preventing undesirable growth of weeds and the like about a central plant. The outer perimeter of the planter has several keyways for removably attachment of a planter cover. The keyways are also adapted to receive plant growing or animal protection cages.

The invention discloses a ful- degradable liquid mulch film, taking renewable and cheap natural macromolecule humic acid, lignin and waste slag as main raw material, containing no artificial macromolecule monomer in burdening. The product is characterized by good thermal insulating, and water retention function, low cost, environment- friendly, and adjustable degradating time about 30-120 days according to different requirement. The invention is characterized in that: it effectively overcomes problem of hard degradation for normal plastic mulch film, and it can fully degrade under natural environment, and the final product is soil humic acid fertilizer and carbon dioxide and there is no harm component residual.

The invention provides a modified polylactic acid material and a preparation method and application thereof. The modified polylactic acid material comprises the following raw materials in part by weight: 40 to 70 parts of polylactic acid, 10 to 20 parts of thermoplastic polyester elastomer, 10 to 20 parts of plasticizer and 10 to 20 parts of organic or inorganic filler, wherein the thermoplastic polyester elastomer is polyester thermoplastic polyurethane; the plasticizer is one or two of tributyl acetocitrate, epoxidized soybean oil, propylene glycol polyester adipate or dioctyl maleate; and the organic or inorganic filler is one or more of starch, talcum powder, calcium carbonate, mica, montmorillonite, clay or titanium dioxide. The modified polylactic acid material has the advantages of improving the flexibility of a polylactic acid material and reducing the cost of a biodegradable material. A mechanical performance test shows that in the modified polylactic acid material, the tensile strength is 15 to 70 MPa and the fracture tensile rate is 20 to 38 percent.

The invention discloses a controlled degradation type full-biodegrade agricultural mulching film, belonging to the technical field of agricultural mulching films. The full-biodegrade agricultural mulching film comprises the following raw materials by weight percent: 0.5%-50% of a processing aid A, 0.1%-0.5% of a processing aid B, 2%-10% of a functional aid A, 0.3%-2% of a functional aid B, 0.1%-5% of a functional aid C and the balance of full-biodegrade polyester. The full-biodegrade agricultural mulching film is reasonable in design, and the stiffness of the mulching film is kept by compounding flexible full-biodegrade resin with rigid full-biodegradable resin; good physical performance of the mulching film is ensured by reasonably combining various aids with full-biodegrade polyester; in addition, the mulching film does not contain non-biodegradable resin, is good in comprehensive performance, can meet the requirements on the degradation time caused by crops, and cannot affect subsequent farm operation after being degraded.

A structural cell system is disclosed for supporting hardscape areas in a way that enables tree root growth and accommodates filtering, retention, storage and infiltration of storm water while preventing hardscape damage. The system includes a plurality of structural cells capable of being positioned below a hardscape. The structural cells are designed to have openings that are sized to accept tree roots. The system has one or more permeable barriers around the structural cells with a way for water to flow into the plurality of structural cells flow out of the structural cells.

The invention relates to an environmental-friendly mulching film which can endow universal plastics with properties of photothermal oxidative degradation and biodegradation. The invention specifically discloses a degradable material which is prepared from photothermal oxidative degradation granules, a thermal stabilizer, a photostabilizer, an antioxidant, a biodegradation guiding agent and the like; and after the degradable material is added to the universal plastics (such as polyethylene, polypropylene, polystyrene and the like), the plastics can be subjected to photothermal oxidative degradation and biodegradation. The environmental-friendly mulching film capable of being subjected to oxidative biodegradation can be produced through preparing a degradable master batch from the degradable material and low-density and low-melting-point polyethylene by a twin-screw granulator and adding the degradable master batch to mulching film production. The degradable environmental-friendly mulching film disclosed by the invention not only has the advantages of simplicity in preparation, low production cost, environmental friendliness and no pollution, but also has very good time controllability; and the degradation time of the mulching film can be changed through adjusting the content of ingredients of the mulching film, so that the requirements of different crops for growth are met, and the mulching film is very applicable to the needs of agricultural planting.

The invention discloses a method for preparing degradable agricultural mulches by reusing organic waste residues of biomass, which can be widely used for preparing biodegradable nutritional type water-retention mulches by recycling the by-product residues in the fermentation brewing industry and the sugar industry. In the process, low-concentration alkali liquor is mainly used for processing the waste residues, specified neutralizing agents are used for neutralizing the fertilizers such as N, P, K and the like required for growing the plants which are generated and auxiliary film-forming agents, plasticizers and the like are used for preparing mulch stock solution, or casting or diluting or spraying is carried out. The mulch is low in cost and convenient to operate, such substances as pesticides, weedicides, trace fertilizers and the like can be added to the mulch according to the requirements of different crops, and the mulch not only has the effects of heat preservation, moisture preservation and fertilizer betterment but also has moderate degradation period. The degradation rate of the ground mulch reaches 55-70% after 4 months and almost reaches 100% after about 8 months.

The invention relates to a mulch film, in particular to a polyester full-biodegradable mulch film. The polyester full-biodegradable mulch film is prepared from the following raw materials in percentage by mass: 40%-80% of flexible degradable polyester, 10%-55% of rigid degradable polyester, 0.5%-1.5% of a reactive compatibilizing agent, 1%-2% of a heat preservation agent, 1%-2% of a moisturizing agent, 0.5%-1.5% of an ageing-resistant agent, 0.5%-1% of a smooth agent and 0.5%-3% of an anti-block agent. The polyester full-biodegradable mulch film does not contain any non-biodegradable general plastic and starch; the film blowing operation can be performed on a general LDPE (low-density polyethylene) film blowing machine; equipment does not need to be modified; the polyester full-biodegradable mulch film is good in transparency, flexibility and heat preservation property, high in strength, low in water vapor penetration rate and favorable for preserving moisture.

An environmental protection type bast fibre film which is air permeable and impervious is prepared from bast fibres through opening fibres, removing dust and impurities, carding, stripping for netting, airflow netting, chemical sticking by adhesive to become film, applying the hydrophobic agent onto its surfaces, and cold rolling.

A modular protection device for underpinning for protecting underpinning from lawn care equipment includes an elongated trough having a first end and a second end. The first and second ends are open. The elongated trough includes a bottom wall, a front wall and a back wall each extending between the first and second ends. The trough has an open top side and defines a channel for selectively receiving a bottom edge of the mobile home underpinning. A foot is attached to and extends outwardly from the front wall. A plurality of troughs is provided. A coupler assembly for selectively couples a pair of the troughs together.

A molded body for improving cultivation conditions for plants, which is suitable inter alia for arrangement in a plant holder. The molded body has a tapered projection and is arranged in such a way that the projection protrudes into the plant substrate in the plant holder. The projection has elements allowing an exchange of substances between the interior and the surroundings of the projection. This allows the targeted introduction of air, water, nutrients and auxiliary substances into the plant substrate and the root conglomerates. The molded body has a recess which acts as a water reservoir that is separate from the plant substrate. The molded body is water-permeable in the upper part and essentially impermeable to water at the bottom, in the tip of the projection.

An apparatus for shielding a fence post from foreign elements includes a collar section with integral sidewalls, one detachable sidewall, a base extending about a perimeter of the collar section, and a mechanism for preventing fluid from traveling distally and medially of an outer wall of the fence post and an inner perimeter of the collar. The detachable sidewall is provided with oppositely spaced tongue portion and the collar section has a pair of grooves formed therein. The tongue and groove portions are slidably engageable with each other so that the apparatus can be assembled and disassembled by moving the detachable sidewall along a substantially vertical plane. The fluid blocking mechanism preferably includes a rubber seal contiguously positioned medially of the fence post and collar section.

A tree root ball wrapping apparatus (100) includes a circular platform (109, 113) for supporting a separable, open-frame, root-containment structure (103, 105, 107) having an inverted conical shape. A group of pivot joints (201, 203, 205, 207) are located at an upper section of the root-containment structure for separating the root-containment structure into half sections. In practice, the group of pivot joints can be opened during tree transplantation for providing removal of a root ball from the wrapping apparatus by opening the sections at the group of pivot joints for easily facilitating removal of the wrapping apparatus (100) from within a transplantation hole.

The invention discloses a controllable bio-based full-degradable mulching film which is prepared from the following raw materials in parts by weight: 15-60 parts of polylactic acid (PLA), 40-85 parts of polyterephthalic acid-butanediol adipate, 0.1-0.5 part of reactive assistant, 0.1-0.5 part of antioxidant, 0.1-0.5 part of lubricant, 0.1-0.5 part of ultraviolet absorbent and 0.1-0.5 part of light stabilizer. The novel reactive assistant is adopted to solve the problem of interface compatibility between PLA and PBAT; by adjusting the PLA / PBAT proportion and adding other ultraviolet absorbents and light stabilizers, the problem of controllability on mulching film degradation period is solved; and by utilizing the characteristic of high mechanical strength of the PLA in combination with favorable flexibility of the PBAT, the controllable-degradation-period full-biodegradable low-cost agricultural mulching film based on PLA multielement composite modification technique, of which the thickness is down to 6 mu m and the maximum bio-base content is up to 60%, is developed. The controllable bio-based full-degradable mulching film has favorable quality, and has wide popularization application prospects in promoting national soil pollution treatment and developing ecological agriculture.

Superabsorbent polymer (SAP) products for use in agricultural applications, and methods of making and using the same are disclosed. Certain of the SAPs include a monomer or a mixture of monomers, other than acrylonitrile, that is graft polymerized onto a starch in the presence of an initiator to form a starch graft copolymer that is cross-linked and the SAP product is isolated.

A soft flat balloon neck closure disc formed of non-rigid, soft, flexible, and resilient material for safe use with fluid filled balloons, including water filled balloons that may be thrown at a person. The device is relatively thick and has a flat top surface, a flat bottom surface, and a peripheral outer surface defining its shape. A first small hole and second small hole are each disposed inwardly from first and second segments of the peripheral outer surface in diametrically spaced apart relation and a first and second slit extend outwardly from the holes to the first and second side segments, respectively, and each has a V-shaped entrance. The first side segment is pushed onto the balloon neck such that the neck passes through the first slit and snaps into the first hole, the disc is slid down on the neck, and the neck is wrapped over the top of the disk, pulled inwardly through the second slit to snap into the second hole, and then back under the disc and upwardly through the first slit and hole.

An apparatus to promote plant growth in vast desert areas is disclosed. The apparatus comprises a blocking plate pivotally jointed to at least two support posts. The blocking plate is operated by an electrical motor to turn wheels secured to a rotary rod to extend or pull back cables connecting the blocking plate and the wheels in order to swing the blocking plate between an approximately horizontal position and one or two approximately vertical positions in order to protect the plants underneath and promote plant growth. The apparatus can include a solar cell layer in the blocking plate, or attach a wind turbine at the top of one of the support posts to generate electrical energy from the extreme desert sunlight and windstorm. Further, rain gutters can be formed onto the blocking plate to collect and distribute rainwater.

A grape bagging robot system based on machine vision comprises a robot intelligent moving platform, a computer vision identification location device and a mechanical arm bagging device. The robot intelligent moving platform comprises a crawler, a motion controller, a motor driver, a vehicle-mounted computer, a cloud deck camera and a two-dimensional laser ranging device, wherein the vehicle-mounted computer is positioned in the crawler. The vehicle-mounted computer further comprises an automatic path navigation module and an obstacle detection module. The computer vision identification location device comprises the crawler, a vertical slide rail and a binocular color charge coupled device (CCD) camera, wherein the vertical slide rail is positioned on the crawler, the binocular color CCD camera is installed on the vertical slide rail in a mode capable of moving up and down, and the vehicle-mounted computer is installed in the crawler. The mechanical arm bagging device comprises a mechanical arm, a terminal actuator and a bag, wherein the mechanical arm is positioned on the crawler, the terminal actuator is arranged on the mechanical arm, and the bag is positioned on the terminal actuator. The grape bagging robot system based on the machine vision can reduce labor intensity and improve work efficiency.

The invention belongs to the technical fields of biodegradable material modification and application, and relates to a controllable fully biodegradable mulching film and a preparation method thereof.The controllable fully biodegradable mulching film comprises the following raw materials in parts by weight: 1-50 parts of high-crystallinity polylactic acid, 10-90 parts of polybutylene adipate / butylene terephthalate, 0-50 parts of poly propylene carbonate, 0.1-2 parts of a plasticizer, 0.1-2 parts of a chain extender, 0.1-1 part of a lubricant, 0.1-1 part of a dispersant, 0.1-1 part of an opening agent, 1-3 parts of a compatibilizer, 0.1-8 parts of a gas barrier, 0-1 part of an antioxidant, 0-1 part of a light stabilizer, 0.1-2 parts of an anti-hydrolysis agent and 0-3 parts of an antibacterial agent. The raw materials are pretreated and uniformly mixed, the controllable fully biodegradable mulching film is obtained by extrusion and blow molding, and the thickness of the mulching film is0.005 to 0.020 mm. The fully biodegradable mulching film provided by the invention has good mechanical properties, excellent heat preservation and moisture retention performance, and can be completely degraded by itself; the mulching film degradation rate can be regulated according to the 'mulching film function period' of different crop mulching films in different regions to meet the needs of different crops in different regions.

A method for manually-cultivating three-stage Rhizoma Paridis belonging to the technical field of agriculture includes primary seedling planting and raising, secondary seedling planting and raising, Rhizoma Paridis cultivation and field management, wherein, the primary seedling planting and raising includes the steps of presprouting of seeds and seed seedling raising, when tubers weigh 2g after 3 years, transplantation can be carried out. The secondary seedling planting and raising includes the steps that: the primary seedlings with 2g of tubers are transplanted in October and last third of November and transplantation can be carried out when the tubers are 15g after 3 years. The steps of Rhizoma Paridis cultivation and field management are that: the secondary seedlings are transplanted according to the proportion of 21,000 seedlings in per acre in October and last third of November, and mature Rhizoma Paridis can be dug after 3 years; farmyard manure is fertilized once or twice every May and last third of August with the amount of 3000kg per acre every time, or carbamide is fertilized or foliar fertilizer is sprayed for three times in the vigorous growth period; in the non-seed-collecting filed, ovaries are picked off after sepals unfold; commercial pesticide is used for preventing plant diseases and insect pests in the growth period of the Rhizoma Paridis. The method for manually-cultivating Rhizoma Paridis is characterized by less investment, early effect, good harvest, high efficient, etc., which can realize major production.

Disclosed herein is an adjustable protective enclosure for trees or shrubs, comprising: a first enclosing portion having a upper region, and a lower region adapted to contact the ground, and comprising a plurality of longitudinally extending panels, each panel comprising a plurality first longitudinal members and a plurality of first transverse members, wherein the first longitudinal members and the first transverse members of a panel are attached to one another to form one or more first rigid frameworks; at least a portion of the longitudinal members or at least a portion of the transverse members, or both, are adjustable in length; each panel is adjustably attached to two adjacent panels to enclose one or more trees or shrubs; a second enclosing portion attached to the first enclosing portion in the upper region thereof, and comprising a plurality of second longitudinal members and a one or more second transverse members, wherein the second longitudinal members and second transverse members form one or more second rigid frameworks; a first covering removably disposed around the first enclosing portion; a second covering removably disposed around the second enclosing portion.

A method of desert environmental control using the apparatus as disclosed herein that can be installed in huge expanse of desert area, evenly spaced in a square matrix type formation, forming a protective layer against sunlight, and turning the sun's natural energy into electrical power by the solar panel or photo-voltaic cells that can be placed upon the shade panel as disclosed herein, creating a friendly environment that promotes plants growth and thus turning arid desert land into human friendly land at a cost lower than other current systems.