84results about How to "Not easy to grow" patented technology

One aspect of the present invention generally relates to methods of sealing a wound or tissue plane or filling a void splace. In a preferred embodiment, the wound is an ophthalmic, pleural or dural wound. In certain instances, the compositions used to seal the wound or tissue plane comprises a polyalkyleneamine. In a preferred embodiment, the polyalkyleneamine is polyethyleneimine. Treatment of the polyethyleneimine with a cross-linking reagent causes the polyethyleneimine polymers to polymerize forming a seal. In certain instances, the cross-linking reagent is a polyethylene glycol having reactive terminal groups. In certain instances, the reactive terminal groups are activated esters, such as N-hydroxy succinimide ester. In certain instances, the reactive terminal groups are isocyanates. In certain instances, the polyethyleneimine has a lysine, cysteine, isocysteine or other nucleophilic group attached to the periphery of the polymer. In certain instances, the polyethyleneimine is mixed with a second polymer, such as a polyethylene glycol containing nucleophilic groups. In certain instances, the compositions used to seal the wound or tissue plane are formed by reacting a polyalkyleneamine bearing electrophilic groups with a cross-linking reagent containing nucleophilic groups. In certain instances, the electrophilic groups on the polyalkyleneamine are activated esters, such as N-hydroxy succinimide ester. In certain instances, the compositions used to seal the wound or tissue plane are formed by reacting a polyalkyleneamine bearing photopolymerizable groups with ultraviolet or visibile light. Compositions used to seal the wound which contain PEI or a derivative of PEI are found to adhere tightly to the tissue. Other aspects of the present invention relate to methods of filling a void of a patient or adhering tissue. In certain instances, the methods use a polyalkyleneamine. In a preferred embodiment, the polyalkyleneamine is polyethyleneimine. Another aspect of the present invention relates to a polymeric composition formed by exposing a polyalkyleneamine to an activated polyalkylene glycol. In certain instances, the composition is attached to mammalian tissue.

The invention discloses a no-tillage no-hole cultivation method for direct-sowing rape in rice stubble, comprising the following steps of: A) making ridges with the ridge surface of 100cm in width and ridge furrow of 40cm in width; B) returning the total straws into fields, and uniformly covering the straws without cutting to be short in 45cm of the middle of the ridge surface; C) direct-sowing rape: sowing the rape in 20 to 28cm from the ridge furrows and sowing two lines of rape for each ridge strip; D) applying basic fertilizer; E) blocking water in deep furrows, hoeing the ridge furrows to be below 20cm after rapes are sowed for two days, uniformly carrying the furrows on the blank amplitude of the ridge surface; and F) field management: doing well in daily field management. The no-tillage no-hole cultivation method saves the procedures of drying furrows, breaking furrows, making cavities and the like, saves labor, time and cost, does not miss the season, has high waterlogging resistance, can effectively solve the problem of returning the total straws in the rape field into field and realizes continuous adding of fertilizer and improvement of soil, thus improving the economic, social and ecological benefits.

The present invention provides a bioreactor having a system that can grow cells, tissue, etc. while maintaining or improving their function, and finally recover the cells as they are with good efficiency. The bioreactor has a porous sheet-form material disposed in its main body, the porous sheet-form material being formed from a nonwoven fabric, etc. having high cell affinity in order to retain cells. This porous sheet-form material has a thermosensitive polymer and a cell-adhesive substance incorporated thereinto, and the porous sheet-form material is not only cell-adhesive but also allows cells and tissue to be detached from the porous sheet-form material as they are by, for example, cooling from 37° C. to 25° C. Furthermore, in order to efficiently ensure the bioactivity or the survival of the cells, it is arranged so that circulation of a culture medium in a culturing space of the bioreactor is of a radial flow type.

The invention discloses a health carp ball. Raw materials for making the health carp ball comprise, by weight, 100-150 parts of carp, 6-8 parts of lemon, 15-20 parts of chrysanthemum nankingense, 2-4 parts of Artemisia capillaries, 9-15 parts of cassia seed, 8-12 parts of Poria cocos, 5-9 parts of Lophatherum gracile, 1-3 parts of Oxalis corniculata L., 10-15 parts of wild chrysanthemum flower, 6-8 parts of lotus leaf, 10-15 parts of Caulerpa lentillifera, 10-13 parts of watermelon peel, 9-12 parts of lotus rhizome, 8-12 parts of coriander, 10-20 parts of brown rice flour, 6-10 parts of red bean flour, 10-15 parts of egg white, 6-10 parts of cannabis oil and 4-8 parts of salt. The carp is adopted as a main raw material, and cooperates with other raw materials, so the carp ball made in the invention has abundant and balanced nutrition, has urination promoting, dampness excreting, intestine moistening, bowel relaxing and hypertension controlling effects, is suitable for fat people to eat, and is especially suitable for being used as a meal replacement.

The invention discloses a method needing no tilling and punching for tilling rice stubble rape field, which comprises the following steps: (A) culturing ridges with surface width of 100 cm and furrow width of 40 cm; (B) applying basal fertilizer; (C) transplanting two rows of rapes in each ridge, with every two adjacent rapes keeping a spacing of 15 cm and every two adjacent rows of rapes keeping a spacing of 60 cm, wherein root of the rape transplanted to moist field blocks faces to the middle of the ridges, clings to the field surface and is pressed by smalll clods, root of the rape transplanted to muddy field blocks faces to the middle of the ridges and is directly pressed on the field surface and root of the rape transplanted to dry field blocks faces to the middle of the ridges, clings to the field surface and is pressed by crushed clods; (D) returning total rice straw to the rice stubble rape field, namely, evenly spreading the rice straw which is not short on ridge surfaces between every two rows of rapes; (E) heapping the rapes in deep furrows, namely, digging ridge furrows with depth of 20 cm below the field surface for 3 days after the rape is transplanted and evenly earthing up upturned soil on ridge surfaces at the root of the rape; and (F) daily managing the rice stubble rape field. The invention can omit the processes of drying upturned soil, crushing upturned soil, punching, and the like, does not delay seasons, has high waterlogging resistance and effectively solves the problem of returning total rice straw to the rice stubble rape field.

An air conditioning apparatus includes a compression mechanism, a heat source-side heat exchanger, an expansion mechanism, a usage-side heat exchanger, a blower, housings and a bypass circuit. The blower feeds an air flow to the heat source-side heat exchanger. The housings is configured to accommodate the heat source-side heat exchanger and the blower in a space above the bottom plate. The bypass circuit is disposed so as to pass below the blower and the heat source-side heat exchanger. The bypass circuit is configured to bypass a third refrigerant tube on a discharge side of the compression mechanism, and at least one of a first refrigerant tube and a second refrigerant tube. The first refrigerant tube extends from the usage-side heat exchanger to the expansion mechanism. The second refrigerant tube extends from the expansion mechanism to the heat source-side heat exchanger.

The invention relates to a vegetation system for slope ecological restoration. The system comprises: a water storage tank buried in an inclined section of a slope soil body; and a plurality of planting bodies which are uniformly distributed in the soil body above the water storage tank along the inclined section of the side slope soil body. The planting bodies comprise: planting grooves which aremade of concrete, wherein the lower parts of the planting grooves are buried in the soil body, and the bottoms of the planting grooves are communicated with the water storage tank through pipelines; apermeable soil retaining layer which is arranged at a pipeline inlet in the bottom of each planting groove and used for preventing seeds in the sandy soil from running off; a mesh bag which is formedby weaving rhizomes of perishable plants, is arranged in the planting groove and is used for filling the soil body; and an irrigation structure, wherein an inlet of the irrigation structure is formedin the water storage tank, and an outlet of the irrigation structure is formed above the implant and used for supplying water to the planting grooves. According to the device, plants planted on the side slope are irrigated during drought, rainwater is collected and stored when the rainwater is too much, the whole system forms a complete cycle, and therefore ecological restoration of the side slope is further assisted, and ecological stability of the side slope is guaranteed.

[Problems] To provide a high zirconia fused cast refractory that suffers less cracks in production and on heating, has excellent productivity, is hard to form zircon crystals with the refractory solely and under conditions where the refractory is in contact with molten glass, is hard to suffer cracks on receiving heat cycles in operation of a glass melting furnace, and has durability for a prolonged period of time.[Solution to Problems] A high zirconia fused cast refractory containing, as chemical components, from 85 to 95% by weight of ZrO2, from 0.4 to 2.5% by weight of Al2O3, from 3.5 to 10% by weight of SiO2, from 0.05 to 1% by weight in total of Na2O and K2O, more than 0.04% by weight and 1% by weight or less of B2O3, 0.02% by weight or less of P2O5, 0.05% by weight or less of MgO, from 0.01 to 0.2% by weight of CaO, in the case where any one of SrO and BaO is contained, from 0.3 to 3% by weight of SrO or more than 0.5% by weight and 3% by weight or less of BaO, and in the case where both of them are contained, 0.3% by weight or more of SrO and from 0.3 to 3% by weight in total of SrO and BaO, from 0.01 to 0.7% by weight of SnO2, and 0.3% by weight or less in total of Fe2O3 and TiO2.

One aspect of the present invention generally relates to methods of sealing a wound or tissue plane or filling a void splace. In a preferred embodiment, the wound is an ophthalmic, pleural or dural wound. In certain instances, the compositions used to seal the wound or tissue plane comprises a polyalkyleneimine. In a preferred embodiment, the polyalkyleneimine is polyethyleneimine. Treatment of the polyethyleneimine with a cross-linking reagent causes the polyethyleneimine polymers to polymerize forming a seal. In certain instances, the cross-linking reagent is a polyethylene glycol having reactive terminal groups. In certain instances, the reactive terminal groups are activated esters, such as N-hydroxy succinimide ester. In certain instances, the reactive terminal groups are isocyanates. In certain instances, the polyethyleneimine has a lysine, cysteine, isocysteine or other nucleophilic group attached to the periphery of the polymer. In certain instances, the polyethyleneimine is mixed with a second polymer, such as a polyethylene glycol containing nucleophilic groups. In certain instances, the compositions used to seal the wound or tissue plane are formed by reacting a polyalkyleneimine bearing electrophilic groups with a cross-linking reagent containing nucleophilic groups. In certain instances, the electrophilic groups on the polyalkyleneimine are activated esters, such as N-hydroxy succinimide ester. In certain instances, the compositions used to seal the wound or tissue plane are formed by reacting a polyalkyleneimine bearing photopolymerizable groups with ultraviolet or visibile light. Compositions used to seal the wound which contain PEI or a derivative of PEI are found to adhere tightly to the tissue. Other aspects of the present invention relate to methods of filling a void of a patient or adhering tissue. In certain instances, the methods use a polyalkyleneimine. In a preferred embodiment, the polyalkyleneimine is polyethyleneimine. Another aspect of the present invention relates to a polymeric composition formed by exposing a polyalkyleneimine to an activated polyalkylene glycol. In certain instances, the composition is attached to mammalian tissue.

The invention discloses a method for planting paddy by straws of plants, comprising steps of crushing straw of plant into powder; adding starch into water and heating the mixture to form water starch, putting the straw powder of plant and water starch into a mixer to get paste straw powder by means of mixing; preparing mould having 1000mm width and 10mm-20mm depth, wherein the inner of the mould is provided with a cone; pouring the paste straw powder into the mould for formation by drying; demoulding after drying to get straw cake with 1000mm width and 10-20mm thickness, which has holes with equal distance to each other in length and breadth, wherein the depth of the holes is smaller than the thickness of the straw cake; laying the straw cake with paddy filled in each hole in the prepared paddy field. The method of the invention is simple, reasonable, and scientific.has the advantages of easy implementation, less investment and low cost, changes waste into valuable, protects the environment and improves the fat of soil, which is good for raising the yield of paddy.

An organic photoelectric conversion device having a pair of electrodes and a light receiving layer which includes at least a photoelectric conversion layer and is sandwiched by the electrodes, the device including an electron blocking layer provided between the photoelectric conversion layer and one of the electrodes, and a hole blocking layer provided between the photoelectric conversion layer and the other of the electrodes, in which the hole blocking layer is a layer that includes a fullerene and / or a fullerene derivative and a transparent hole transport material having an ionization potential of 5.5 eV or more.

The invention discloses a preparation method of pucker-free non-cleaning dried jujubes, belongs to the technical field of food drying processing, and relates to a method of carrying out microwave vacuum puffing drying on red dates, aiming at solving the technical problems that jujube skin pucker, surface color darkening, nutritional ingredient loss, and the like appearing in a drying process of the red dates. According to the adopted technical scheme, the preparation method of the pucker-free non-cleaning dried jujubes comprises the following steps: pickling jujubes, grading the jujubes, rejecting defective fruits and impurities in materials; cleaning jujubes; drying water on the surfaces of the red dates by an air knife after cleaning the red dates; pre-drying for 3 hours-6 hours by cold air, regulating moisture of the red dates, and keeping the moisture of the red dates uniform, so that moisture content of the red dates reaches 35%-38%; carrying out microwave vacuum puffing drying on the red dates; spreading materials which are pre-dried by the cold air in a tray of a microwave vacuum unit, exhausting and then reducing pressure, wherein the conditions for carrying out the microwave vacuum puffing drying are as follows: vacuum degree is 65kPa-75kPa, microwave power is 6W / g-10W / g, drying time is 5 minutes-10 minutes, and final moisture content is controlled at 20%-25%.

The invention provides a high-yield cultivation method for harvesting grapes twice in one year by base sub-lateral shoots, and relates to the technical field of grape cultivation. The high-yield cultivation method includes the steps: (1) winter pruning; (2) summer pruning; (3) re-flowering facilitation; (4) other management. According to the method, the grapes are harvested twice in one year by cultivation, fruiting parts of secondary fruits can be reduced, nutrition backflow is promoted, ineffective growth is decreased, light energy is sufficiently used, management is facilitated, pruning wounds are increased, the germination number of winter fruits is increased, and the yield and benefits of the winter fruits of the grapes are improved.

The invention provides an edible mushroom culture medium which comprises, by weight, 30-50 parts of biogas residues and biogas slurry, 30-50 parts of crop straws, 10-20 parts of grape pips and peels and a sterilizing agent with 0.5-2% of the volume-weight ratio. Hydrogen peroxide is adopted for the sterilizing agent, and the invention further provides a preparation method of the culture medium. The edible mushroom culture medium has the advantages that the grape pipes and peels comprise a large quantity of polyphenol substances and a large amount of linoleic acid and further have a certain bacteriostatic effect, so that more rich nutrition is provided for the culture medium, and the bacteriostatic effect enables the prepared culture medium not to be prone to being infected with infectious microbes; due to the fact that 35% of the hydrogen peroxide is selected and used for the sterilizing agent, the sterilizing effect is remarkable, in addition, due to the selection and use of the grape pips and peels, the culture medium is little infected with bacteria, in the process of high temperature sterilization, the culture medium is volatilized to generate water and oxygen, and no residue and contamination exist; a large amount of agricultural and stock farming waste such as the straws and the biogas residues and biogas slurry are further selected and used for the culture medium, so that reusing of the waste is achieved, and the culture medium meets the requirements of environmental protection and circular economy.

The invention belongs to the technical field of metal corrosion protection, and relates to a synergistic antifouling material based on microstructures and antifouling active substances and a preparation method thereof. The material is composed of matrixes formed by a plurality of microstructure base units with circular shaft structures, wherein the internal lower layer of each microstructure base unit is filled with an antifouling active substance, and the internal upper layer of the microstructure base unit is filled with a sealant. The process of the preparation method comprises steps of preparing microstructures, preparing the liquid antifouling active substances and preparing the synergistic antifouling material, and adhesion of fouling organisms is prevented through synergistic anti-fouling effect of the microstructures and the anti-fouling active substances. Components of the synergistic antifouling material are simple in structure, the material contains no nitrite, phosphate or heavy metals, and metal corrosion protection and inhibition effects on bacterial growth are good; the material is environment-friendly and safe, is a novel antifouling material based on new principles and new technologies because of adoption of surface microstructure properties and the anti-fouling active substances for synergistic fouling prevention, and has good promotion and application prospects.

The invention discloses a hygienic product. The hygienic product comprises a spacer layer, an absorbing layer and a bottom substrate layer, wherein the spacer layer is contacted with a human body; the absorbing layer is positioned in the middle; the bottom substrate layer is positioned below the absorbing layer and is far away from the spacer layer; the spacer layer is connected with the absorbing layer to form an absorbing body; the bottom substrate layer is detachably connected with the absorbing body; the absorbing layer consists of at least two sub-absorbing layers and at least one flow guide layer; the flow guide layer is arranged between adjacent two sub-absorbing layers; the sub-absorbing layers and the flow guide layer are superposed in turn from top to bottom; the flow guide layer is a flow guide net surface provided with deflector holes which are convex holes projecting outwards from the upper surface and the lower surface of the flow guide layer; bottom holes of the deflector holes are positioned on the flow guide net surface; and top holes of the deflector holes are far away from the flow guide net surface. The layers of the hygienic product can be split for using and can be used repeatedly, so the product has the characteristics of environmental protection, economy and excellent air permeability and prevents reverse leakage of liquid; and liquid absorbing situation can be directly observed from bottom, so a vivid prompt of the need of replacing the hygienic product is given to a user.

The invention relates to an orthorhombic-phase Mn-doped lithium sodium potassium tantalum antimony niobate lead-free piezoelectric single crystal with super-high piezoelectric property and a preparation method thereof, belongs to the field of functional single crystal materials and preparation technology researches thereof, particularly relates to a perovskite-structured sodium potassium tantalum niobate-based leaf-free piezoelectric single crystal and a preparation method thereof, and aims to solve the problems that a current single crystal complex in components is hard in growth, low in quality and low in piezoelectric property. The chemical formula of the orthorhombic-phase Mn-doped lithium sodium potassium tantalum antimony niobate lead-free piezoelectric single crystal with super-high piezoelectric property is [(NayK1-y)1-xLix](Nb1-zTazSbt)O3:Mn. The preparation method includes the steps of firstly, preparing raw materials; secondly, mixing the raw materials; thirdly, pre-sintering; fourthly, performing second pre-sintering; fifthly, repeatedly melting and pre-sintering the perovskite-structured polycrystalline materials; sixthly, growing the crystal.

The present invention provides a bioreactor having a system that can grow cells, tissue, etc. while maintaining or improving their function, and finally recover the cells as they are with good efficiency. The bioreactor has a porous sheet-form material disposed in its main body, the porous sheet-form material being formed from a nonwoven fabric, etc. having high cell affinity in order to retain cells. This porous sheet-form material has a thermosensitive polymer and a cell-adhesive substance incorporated thereinto, and the porous sheet-form material is not only cell-adhesive but also allows cells and tissue to be detached from the porous sheet-form material as they are by, for example, cooling from 37° C. to 25° C. Furthermore, in order to efficiently ensure the bioactivity or the survival of the cells, it is arranged so that circulation of a culture medium in a culturing space of the bioreactor is of a radial flow type.

[Problems] To provide a high zirconia fused cast refractory that suffers less cracks in production and on heating, has excellent productivity, is hard to form zircon crystals with the refractory solely and under conditions where the refractory is in contact with molten glass, is hard to suffer cracks on receiving heat cycles in operation of a glass melting furnace, and has durability for a prolonged period of time.[Solution to Problems] A high zirconia fused cast refractory containing, as chemical components, from 85 to 95% by weight of ZrO2, from 0.4 to 2.5% by weight of Al2O3, from 3.5 to 10% by weight of SiO2, from 0.05 to 1% by weight in total of Na2O and K2O, more than 0.04% by weight and 1% by weight or less of B2O3, 0.02% by weight or less of P2O5, 0.05% by weight or less of MgO, from 0.01 to 0.2% by weight of CaO, in the case where any one of SrO and BaO is contained, from 0.3 to 3% by weight of SrO or more than 0.5% by weight and 3% by weight or less of BaO, and in the case where both of them are contained, 0.3% by weight or more of SrO and from 0.3 to 3% by weight in total of SrO and BaO, from 0.01 to 0.7% by weight of SnO2, and 0.3% by weight or less in total of Fe2O3 and TiO2.

The disclosure relates to a method for preparing Ti(C,N)-based superhard metal composite materials, with Ti(C,N) powder and (W,Mo,Ta)(C,N) powder as main raw materials and Co powder as binding phase for preparation, thereby obtaining a material in which a microstructure is a double-core rim structure that has both a black core rim and a white core rim. The material has a complete and evenly distributed double-core rim structure. In the condition that the ensured hardness of the material is not reduced and even slightly increased, the toughness of the material is significantly improved, wherein the fracture toughness of the material is in the range of 11.3 to 12.5 MPa·m1 / 2.

The invention belongs to the field of composite materials and anti-radiation damage structure materials, and particularly relates to an anti-radiation damage metal nanocrystalline / carbon nano tube composite material and a preparation method thereof. The composite material is composed of a self-supporting CNT matrix and metal nanocrystallines uniformly attached to the surface of the self-supportingCNT matrix to grow, adjacent nanocrystalline grains are in a small-angle tilting grain boundary with the orientation difference of 1-10 degrees, the grain size is smaller than or equal to 250 nm, andthe porosity is larger than or equal to 50%. The preparation method comprises the following steps that a sample support with bearing and heating functions is provided, and plasma cleaning treatment is carried out on the CNT substrate borne by the sample support under the heating condition; at the pressure (Ar gas) of 0.2-2 Pa and the temperature of 20-800 DEG C, the metal nanocrystalline / carbon nano tube composite material through the CNT prepared substrate by utilizing a magnetron sputtering deposition technology. The thickness, the composition, the porosity and the like of the composite material can be regulated and controlled correspondingly, high-density nano-scale pores are formed, relatively high electrical conductivity and bending flexibility are achieved, and under the irradiationof high-energy particles, good anti-damage property and structural stability are shown.

The invention belongs to the technical field of breeding of cucurbitaceae vegetable. An interspecific hybrid F1 (Yong rootstock No. 6) of cucurbit (a melon rootstock) is obtained by hybridizing a female parent of a stable inbred line J03-2-3-2-1-5-7-4 by multi-generation of directed autocopuation screening of cucurbit materials originated from Japan and a male parent of a stable inbred line YH2-3-3-2-1-4-2-6 by multi-generation of directed autocopuation screening of local Lagenaria species produced in Ningbo. The melon rootstock selectively bred with the method provided in the invention meets objectives of breeding and has moderate growth potential, high resistance to die-back and root rot, well-developed roots, strong stalks, strong ability in absorbing nutrient, low degree of vain growth and robust hypocotyls which are not easy to become hollow, and therefore the melon rootstock is favorable for grafting. The melon rootstock has good grafting affinity and strong symbiosis affinity, and a survival rate over 95% is obtained for the grafting of the rootstock onto the watermelon specie ''Zaojia'' (8424). The engrafted melon rootstock is low temperature-resistant, moisture-resistant and barren-resistant; after field planting, the root and overground part of a grafted seedling grows fast and has sound growth potential, and the period of first harvest of the grafted seedling is 5 days earlier than that of a self-rooted seedling, the fruition rate is high and stable, weight of single fruit and fruit shape can substantially maintain the same, melon skin is not thickened, sugar degree of the grafted seedling is higher than that of the self-rooted seedling, sugar degree gradient is small, quality of the watermelon is not affected, and good adaptability is obtained.

A knife intended for cutting in food, especially meat, such as for slaughtering or cutting into pieces, has a knife blade (8) of steel provided with an edge and a handle (11) receiving the rod (10) thereof. The handle bears, at least in the region (12) adjoining to the part (9) of the blade provided with the edge, surrounding and against the rod (10) of the blade through a first material able to adhere intimately to the steel of the blade and thereby tightening connection.

The invention relates to a summer squash leaf-control high-yield unlimited vine hanging method. The summer squash leaf-control high-yield unlimited vine hanging method comprises the steps that when the number of leaves of each summer squash ranges from 5 to 7, spraying of 15% wettable powder 500-time dilution of a growth inhibitor MET is conducted from blades to cover tops, and after field planting is accomplished, soil is kept wetting immediately when the soil is dry; when the number of the leaves of each summer squash ranges from 7 to 8, vines of the summer squashes are hung, and all male flowers and female flowers existing before the eight leaves grow are removed; when the fruit setting period begins, flower dipping processing is conducted, one fruit is reserved for every two leaves, when the first fruit grows to meet the requirement that the length is 10cm, 10kg three-element fertilizer is used per mu, and is applied along with water, and fertilizer and water irrigation is conducted every 7-15 days; when the situation that the blade area becomes large, and the blades become thin appears, processing is conducted through the 15% wettable powder 500-time dilution of the MET, and when the fruiting vigorous period begins, top application of high-nitrogen and high-potash fertilizer is conducted. According to the summer squash leaf-control high-yield unlimited vine hanging method, the summer squashes are processed through the growth inhibitor, the increase of the blade area is inhibited, the blades of the summer squashes can become thin, and light transmission and the photosynthetic capacity are enhanced; the summer squashes are promoted to be robust in the earlier stage, the fruit setting period appears in advance, the fruit setting ratio is increased, after fruit setting is accomplished, growth and development of the fruits are quick, and the frequency of pest and disease damage is low.

The invention relates to the technical field of soil improvement, in particular to a soil improver for sandy soil of a dry land. The soil improver is prepared from the following components: rice huskcharcoal, peat, coal humic acid, kaolin, loosening agent, high-performance moisturizing agent, nutrition supplementing agent and composite amino acid, wherein the loosening agent is coal ash or talcumpowder; the high-performance moisturizing agent is prepared by compounding a porous carrier and water absorption resin by virtue of a special process, so that compared with the traditional polyacrylamide, the water absorption performance is higher, and the water retention performance is better; and the soil improver is good in combination effect with sandy soil, can improve the clustering effectof the sandy soil, can avoid the soil loss, and can significantly improve the water retention performance of the soil of the dry land.

The invention discloses a strawberry seedling culture plug which comprises soil hole units in parallel connection. Each soil hole unit comprises two symmetric soil holes (1) and a water guide block (2) positioned between the two symmetric soil holes (1), a supporting leg (3) is arranged at the bottom of each soil hole (1), the upper side walls and the lower side walls of the soil holes (1) project inwards, root guide grooves (4) are formed at four corners of each soil hole (1), small holes (5) for fixing drip irrigation belts are formed in two ends of the strawberry seedling culture plug, the middle of the water guide block (2) is high, and two side edges of the water guide block (2) are low. The strawberry seedling culture plug is reasonable in structural design and soil hole spacing and strong in practicability, excessive growth of strawberry seedlings due to excessive density is effectively prevented, air root-cutting can be realized, lateral root growth of the strawberry seedlings is stimulated, and root flooding can also be prevented. The plug is used with the drip irrigation belts with the drip hole spacing of 10cm, integrated accurate supply of strawberry plug seedling culture fertilizers, water and pesticides can be effectively realized, cost is saved, and diseases are decreased.

The invention discloses a crystalline glaze. The crystalline glaze is prepared from the following components in parts by weight: 10-100 parts of glass powder, 1-50 parts of zinc oxide, 1-50 parts of titanium dioxide, 1-30 parts of kaoline and 1-20 parts of barite. The invention further provides a preparation method of the crystalline glaze. According to the invention, the barite is added into thecrystalline glaze, is slowly decomposed under high temperature, and can release small bubbles to obstruct the growth of crystals, so that the shapes and sizes of the crystals can be controlled, and the shapes and sizes of crystal flowers of the fired crystalline glaze tend to be uniform, so that the crystalline glaze is especially suitable for batch production of different batches and whole sets of products; and in addition, the generation of porcelain explosion defects of products can be reduced and the finished product ratio can be increased.