49results about How to "Easy for mechanical work" patented technology

The invention relates to algae-enhanced urea and a production method thereof. According to the invention, a fertilizer is produced through steps that: natural algae and urea are adopted as raw materials; algae is subject to microbe fermentation, and is subject to processes such as extraction and press-filtration, such that an algae enhancing liquid is prepared; molten urea solution and the algae enhancing liquid are granulated in an urea granulating tower, such that the algae-enhanced urea provided by the invention is obtained. With the algae-enhanced urea, soil urease activity can be substantially inhibited. The algae-enhanced urea has an enhanced fertilizer releasing-retarding effect. With the algae-enhanced urea, a utilization rate of fertilizer is improved by 5-10%, and agricultural cultivation can be simplified; nutrient loss can be reduced; secondary pollution can be avoided; and agricultural production cost can be reduced. The algae-enhanced urea is advantaged in wide raw material source, convenient transportation, and convenient application. With the algae-enhanced urea, mechanical working can easily be carried out. Therefore, the algae-enhanced urea has a wide prospect in production.

The invention relates to a humic acid synergia compound fertilizer and a preparation method thereof. The method comprises the steps of: preparing a humic acid synergia solution, preparing a granulating material, coating an enveloping layer and drying, screening, cooling and the like. A humic acid synergist disclosed by the invention has the characteristics of being trace and efficient, low in addition volume, free from influence on nutrient content of the fertilizer, and favorable for regulation on the formula, and has the advantages of being high in output, low in cost, good in effect and the like. With the coated humic acid synergia compound fertilizer, the nitrogen utilization efficiency can be improved by 5-10 percentage points by inhibiting the soil urease activity; phosphorus, potassium and medium trace elements in soil can be activated; the absorption of crops is enhanced; and the humic acid synergia compound fertilizer has the characteristics of being excellent in slow release performance, high in utilization rate of butrients in season, and environment-friendly, and is wide in application prospect in specific production practice.

The invention discloses a tunnel shallow-buried excavation reserved core soil improved CRD construction method. According to the tunnel shallow-buried excavation reserved core soil improved CRD construction method, a whole tunnel section is divided into an upper left step cavity, an upper right step cavity, a lower left step cavity and a lower right step cavity, the two upper step cavities are merged to enlarge the cavity space, an upper step is excavated with the core soil reservation method, an arch steel frame is formed immediately, then a temporary inverted arch is constructed, a ring is formed through fast sealing, and then a middle partition wall and the two lower step cavities are constructed properly according to the excavation process of all cavities. The tunnel shallow-buried excavation reserved core soil improved CRD construction method has the advantages that mechanical construction is facilitated, working efficiency is high, and the construction period is short.

The invention relates to a seaweed synergia compound fertilizer and a preparation method thereof. The method comprises the steps of: preparation of seaweed synergists, preparation of a granulating material, preparation of urea meltwater, granulation and the like. According to the fertilizer and the method, a fusing urea guniting process is combined with a drum granulating process to produce the seaweed synergia compound fertilizer, and due to the promotion effect of active ingredients in a seaweed synergia solution on crops during growth, the inhibiting effect of the active ingredients on soil urease, and the influence of the active ingredients on chemical valence bond features of urea, the crop yield is increased, the fertilizer utilization rate is increased, the nutrient loss is reduced, and the secondary pollution is avoided. The fertilizer product disclosed by the invention has the characteristics of being wide in material sources, free from deliquescing, convenient to deliver, apply and produce, simple in process, low in cost, beneficial to industrial generalization, and the like, and has a wide application prospect in production.

The invention relates to a humic acid synergistic ammonium phosphate and a production method thereof. The fertilizer comprises the components in parts by weight as follows: 0.05-1.5 parts of a humic acid synergist and 98.5-99.95 parts of ammonium phosphate. The humic acid synergistic ammonium phosphate slows fixing of phosphorus in the soilin soil and increases the utilization rate of a phosphate fertilizer on the basis of nutrient releasing and utilization; the agricultural operation can be simplified on cultivation; the nutrient utilization rate can be increased (by 5-10%) on the benefit; nutrient loss can be reduced, secondary pollution is avoided, and the agriculture production cost is reduced; the humic acid synergistic ammonium phosphate has the characteristics that raw material sources are wide, transportation and application of the fertilizer are convenient, the mechanical operation is facilitated, and the like; and the addition technology is simple and the cost is low in the ammonium phosphate production, so that the humic acid synergistic ammonium phosphate has a wide application prospect in synergistic ammonium phosphate production and industrial promotion.

The invention discloses a dry farming direct seeding planting method of rice, which comprises the steps of preparing sprinkling irrigation equipment: the lifting micro-sprinkling irrigation equipment is buried under to-be-planted ground for 30-40cm; processing a field: straws of last stubbles of crops on the to be planted ground are cut into sections, the lengths of the straw sections are 2-20cm, the straw sections are broadcast in soil, a base fertilizer is applied on the soil, and the soil is subjected to ploughing and rotary tillage; preparing rice seeds and seeding: the selected rice seeds are sown on the processed soil uniformly, and then the soil is compacted; and performing sprinkling irrigation: the lifting micro-sprinkling irrigation equipment buried under the ground is used for irrigating the soil sown with the rice seeds, and the water content of the surface of the soil is 40-60%. Therefore, the precision irrigation to the crops is realized; excess water accumulation in the rice field is avoided; and the utilization ratio of water resources is increased. In addition, the straws are turned into organic fertilizers with the passage of time; straw turnover is realized indeed; the method contributes to improving the yield and quality of grains; and environmental pollution due to straw burning is avoided.

The invention relates to a glutamic acid synergist urea and a preparation method of glutamic acid synergist urea. The glutamic acid synergist urea provided by the invention consists of a glutamic acid synergist and urea. The production method of the glutamic acid synergist urea comprises the steps of preparation of the glutamic acid synergist, preparation of glutamic acid synergist urea, high tower cooling granulation and the like. By the fertilizer growth promotion effect of active ingredients in the glutamic acid synergist of the fertilizer on crops, the storage state of nitrogen elements in the plants can be improved, the ability of the crops to absorb nutrients is strengthened, the crop yield and the crop quality are improved, the utilization ratio of the fertilizer is increased (by 5%-10%), the loss of soil nutrients is reduced, and secondary pollution is avoided. The fertilizer product prepared by the invention is wide in source of raw materials, and has excellent application prospect.

The invention relates to a chelated trace element organic fertilizer and a production method thereof. The production method comprises preparing raw materials, preparing a chelated trace element solution, preparing a borax solution, preparing a spray agent, pelletizing, drying and sieving. Due to the adoption of the chelated trace element organic fertilizer, trace elements generally lacked in soil in China are replenished specifically, and the trace elements have high effectiveness. Weathered coal humic acid can be used for improving soil culture fertility, enhancing the product quality, and improving the stress tolerance such as drought resistance, cold resistance, salinity tolerance and the like of crops. The method disclosed by the invention has the characteristics of simple production technical process, wide raw material source, easiness for operating, low cost and the like.

The invention relates to an algae synergistic ammonium phosphate fertilizer and a preparation method thereof. The ammonium phosphate fertilizer comprises the components in parts by weight as follows: 0.05-2.0 parts of an algae synergistic agent and 98.0-99.95 parts of ammonium phosphate. The content of alginic acid accounts for 0.0125%-0.5% of the total weight of the ammonium phosphate fertilizer. Compared with common ammonium phosphate, the algae synergistic ammonium phosphate has the characteristics of good yield-increasing effect, high nutrient utilization rate and avoidance of secondary pollution, environment-friendliness as well as simple production technology, low cost, wide raw material resource, easiness in operation, benefit to industrial application and the like.

The invention relates to an algae synergistic high-tower compound fertilizer and a production method thereof. The method comprises the steps of algae synergist preparation, urea melt liquid preparation, preprocessing of other fertilizers, pelleting and the like. The algae synergistic high-tower compound fertilizer can increase the crop output, improve the utilization rates of the fertilizers, reduce nutrient loss and avoid secondary pollution through the crop growth promoting function of active ingredients in a algae synergistic liquid, the inhibiting effect for soil urease, and the influence on urea chemical valence characteristics and the anti-fixation function for phosphorus and potassium. According to the algae synergistic high-tower compound fertilizer, secondary processing doesn't exist; the fertilizer has the characteristics as follows: sources of raw materials are wide, the fertilizer is not air-slake and can be transported and applied conveniently, the production process is simple, the cost is low, industrial application is facilitated, and the like; and the fertilizer has a wide application prospect in production.

The invention discloses a system and method for regulating and controlling comprehensive environment for a crop canopy space, and belongs to the field of environmental factor regulation and control offacility agricultural engineering. The system for regulating and controlling comprehensive environment for the crop canopy space is suitable for being used under a crop cultivation line and is basedon the ground submerged pipeline air supply. The system for regulating and controlling comprehensive environment for the crop canopy space comprises a main air pipe, a branch air pipe, a system air supply fan, a branch air pipe auxiliary booster fan, a heating electric heat source, a carbon dioxide gas source and a channel switching valve; according to the detection data of an environmental factordetection and a regulation module, the operations of the main air pipe, the branch air pipe, the system air supply fan, the branch air pipe auxiliary booster fan, the heating electric heat source, the carbon dioxide gas source and the channel switching valve are controlled; the environment of active airflow, temperature, humidity, gas and the like of greenhouse facilities is regulated and controlled. The method achieves the local spatial regulation and control target of the crop canopy, and has the advantages of strong pertinence, high regulation and control efficiency, low energy consumptionand good economy.

The invention relates to a glutamic acid synergistic high-tower compound fertilizer and a production method thereof. The method comprises the steps of glutamic acid synergist preparation, glutamic acid-urea melt liquid preparation, preprocessing of other fertilizers, pelleting and the like. The glutamic acid synergistic high-tower compound fertilizer can promote the increase of crop roots and improve the root activity, and can not only improve the utilization rate of a nitrogen fertilizer, but also can improve the utilization rates of a phosphate fertilizer and a potash fertilizer. In cultivation, the agricultural operation can be simplified; in benefit, the nutrient utilization rate can be improved by 5-10%; the compound fertilizer can improve the capacity of crops for absorbing nutrients through functions of promoting the growth of crop roots and enhancing the root activity; and nutrient loss can be reduced, secondary pollution is avoided, and the agricultural production cost is reduced. In production of compound fertilizers, the glutamic acid synergist is simple in additive process and low in cost; and in production of synergistic compound fertilizers and industrial application, the glutamic acid synergist has a wide application prospect.

The invention relates to a process for preparing agricultural fertilizer, in particular a composite potassium dihydrogen phosphate solution and its preparing process, wherein the fertilizer comprises 0.02-0.03% of EDTA, 0.12-0.16% of FeSO4, 0.07-0.08% of ZnSO4, 0.03-0.04% of MgSO4, 0.02-0.03% of CuSO4, 0.005-0.007% of CaSO4, 0.005-0.007% of MnSO4, 0.001-0.002% of ammonium molybdate, 0.1-0.2% of plant growth regulator, and balancing potassium dihydeogen orthophosphate.

The invention relates to a polyurethane modified asphalt waterproof paint, which is composed of the following raw materials by weight: 25-30 parts of a polyurethane prepolymer; 70-75 parts of 90# petroleum asphalt; 40-60 parts of water; 20-25 parts of polychloroprene latex; 4-7 parts of an emulsifier; 2-4 parts of polyvinyl alcohol; 1-3 parts of a coupling agent; 1-2 parts of polypropylene glycol;3-5 parts of trihexyl o-acetylcitrate; 0.1-0.5 part of pentaerythritol ester of hydogenated rosin; 1-3 parts of polyacrylamide; and 10-15 parts of modified nano calcium carbonate. The polyurethane modified asphalt waterproof paint prepared by the method provided by the invention has good film compactness and high stability, a waterproof layer formed by the waterproof paint in a building has largebonding strength with a building base surface and good waterproof effect, moreover, after modification, the product has substantially improved water tolerance, aging resistance, acid and alkaline resistance and the like, has a simple making process, and overcomes the disadvantages of tedious making, poor film compactness, poor waterproofness and aging resistance in previous water emulsified asphalt paint.

The invention relates to a modified asphalt waterproof paint for buildings. The modified asphalt waterproof paint is composed of the following raw materials by weight: 50-65 parts of 90# petroleum asphalt; 60-70 parts of water; 25-28 parts of styrene butadiene latex; 5-7 parts of an emulsifier; 2-4 parts of polyvinyl alcohol; 1-3 parts of a coupling agent; 5-7 parts of polyoxypropylene glycerol ether; 3-5 parts of triethyl citrate; 0.1-0.5 part of rosin glycerin ester; 1-3 parts of sodium polyacrylate; and 10-15 parts of modified nano calcium carbonate. The modified asphalt waterproof paint for buildings prepared by the method provided by the invention has good film compactness and high stability, can be used for buildings to form a waterproof layer, which has large bonding strength with the base surfaces of buildings and has good waterproof effect, moreover, after modification, the product has greatly improved water resistance, aging resistance, acid and alkali resistance and other properties, the making process is simple, and the modified asphalt waterproof paint overcomes the shortcomings of tedious making, poor film compactness, poor water resistance and aging resistance in previous water-emulsified asphalt paint.

The invention relates to a self-opening-closing flow-adjustable low-pressure pipeline irrigation water outlet. A pipe body consists of an inner pipe and an outer pipe; the top of the inner pipe is sealed, a pair of water outlet holes is symmetrically distributed on the side wall of the upper part of the inner pipe, and a pair of latches is symmetrically arranged on the outer side wall of the bottom of the inner pipe; a pair of large guide slide grooves, a pair of small guide slide grooves and a pair of limiting blocks are uniformly distributed on the inner side circumference of the outer pipe, the guide slide grooves are respectively of a pi-shaped projection consisting of two convex ribs and limiting latches, and the latches of the inner pipe can slide between the two convex ribs; and when in normal use, the inner pipe is pressed down and rotated, three marker lines, i.e. 0, 1 / 2 and 1, at the top of the inner pipe are selected to be respectively overlapped with the marker lines of the outer wall of the outer pipe, so that the option settings of zero water outlet locking, semi-hole water outlet and entire-hole water outlet can be completed. The self-opening-closing flow-adjustable low-pressure pipeline irrigation water outlet is simple in structure, the factorized production can be realized, the plastic production cost is low, the quality is stable and reliable, the occupied floor can be saved when in installation and use, the market space is wide, and when the self-opening-closing flow-adjustable low-pressure pipeline irrigation water outlet is popularized to use, the economic benefit, the social benefit and the environmental benefit are relatively high.

The invention relates to a five-to-two combined planting method for crops capable of being harvested for four times in one season. According to the five-to-two combined planting method for the crops capable of being harvested for four times in one season, the planting ratio of high-stalk crops to short-stalk crops is 2 to 5; beans are planted on a planting ridge of the high-stalk crops; after theshort-stalk crops are harvested, second type short-stalk crops are planted on a planting ridge for planting previous short-stalk crops. According to the planting method provided by the invention, fourtypes of crops are planted in the same land range and have a bumper harvest. By adopting the planting method provided by the invention, regions with the accumulated temperature of 2500 or more can beused for planting; the planting time of the four types of crops is different and the harvesting time is different, so that the crops are convenient to manage, mechanical work is convenient to realizeand the crops are convenient to harvest. The crops have the effects of complementing advantages and mutually increasing the production. The greatest benefits are obtained on a limited land.

The invention relates to a humic acid synergistic high-tower compound fertilizer and a production method thereof. The method includes steps as follows: preparation of a humic acid synergistic liquid, preparation of a humic acid-urea melting liquid, pretreatment of other fertilizers, graduation and the like. According to the humic acid synergistic high-tower compound fertilizer, active ingredients in a humic acid synergist have effects on promoting the growth of crops, inhibiting urease in the soil, influencing characteristics of chemical valence bonds of urea and preventing fixing of phosphorus and potassium, so that the yield of the crops and the utilization rate of the fertilizer are increased, the nutrient loss is reduced, and secondary pollution is avoided. According to the fertilizer, secondary processing doesn't exist, and the fertilizer has the characteristics of wide sources of raw materials, low possibility of deliquescence, convenience in transportation and application, simple production process, low cost, benefit to industrial popularization, and the like, thereby having a wide application prospect in production.

The invention relates to a corn planting method, which comprises the following steps: soil preparation, seed selection, seeding, fertilizing and thinning; in the seeding step, the following method is adopted: corn planting is divided into a plurality of planting groups; two rows of corn are planted in each planting group; the two rows of corn are alternately planted in a staggered manner; each two corn seedlings in each row are equal in spacing; a groove is formed between the two rows of corn; base fertilizer, quick-acting fertilizer, backfill, seed fertilizer and the backfill are paved from bottom to top in the groove to an upper notch, and two sides of the upper notch are higher than the middle part of the notch. Compared with the prior art, the corn planting method disclosed by the invention has the advantages that mechanical operations are adapted, the corn is lodging-resistant, the ventilation light transmission is promoted while the planting density is increased, the fertilizer is not easy to run off, and water-saving irrigation is realized.

The invention discloses a grape cultivation method, which relates to the technical field of grape cultivation. The cultivation frame includes upright columns fixed on the ground in a rectangular array, and a main line is drawn along the transverse direction at a position 170 cm to 190 cm above the ground. The two sides of the upright columns are There is a secondary trunk line located below the main trunk line longitudinally, and a branch line is vertically connected to the trunk line; cultivate climbing and binding: the grape plant is planted between two vertical columns; two main vines are cultivated on the trunk of the grape plant, The two main vines are respectively pulled and bound to the secondary trunk lines on both sides; two secondary vines are cultivated on the main vine to climb and grow along the secondary trunk line in reverse, and the secondary vines are bound to the secondary trunk lines; cross-cultured on both sides of the secondary vines The tip branches are respectively pulled and bound to the branch lines on both sides. Compared with the prior art, the viticulture method of the present invention makes the nutrient supply of fruit ears the best; the wide-row sparse plants save the amount of frame materials, have good ventilation and light transmission, are beneficial to fruit coloring, increase sugar content, and improve fruit quality; Mechanical operation, high work efficiency.

Antibacterial polyurethane-modified asphalt waterproof coating and a preparation method thereof are provided. The antibacterial polyurethane-modified asphalt waterproof coating is prepared from polyurethane prepolymer, No. 90 petroleum asphalt, modified nano calcium carbonate, 3-[2-(2-aminoethylamino)ethylamino]propyl-trimethoxysilane, a tackifier, n-butyl acetate, citric acid, dibutyltin dilaurate, polyoxyethylene polyoxypropylene ether, fumed silica, chitosan and 2-methyl-4-isothiazoline-3-one. The preparation method comprises: modifying No. 90 petroleum asphalt with polyurethane prepolymerand modified nano calcium carbonate; adding 3-[2-(2-aminoethylamino)ethylamino]propyl-trimethoxysilane, citric acid and n-butyl acetate into a reactor, and stirring well; adding chitosan, 2-methyl-4-isothiazoline-3-one, fumed silica, the tackifier and dibutyltin dilaurate, and stirring well; adding polyoxyethylene polyoxypropylene ether; continuing to stir until no powder floats; shearing all thematerials until good dispersion to obtain the coating.

The invention discloses a dry farming direct seeding planting method of rice, which comprises the steps of preparing sprinkling irrigation equipment: the lifting micro-sprinkling irrigation equipment is buried under to-be-planted ground for 30-40cm; processing a field: straws of last stubbles of crops on the to be planted ground are cut into sections, the lengths of the straw sections are 2-20cm, the straw sections are broadcast in soil, a base fertilizer is applied on the soil, and the soil is subjected to ploughing and rotary tillage; preparing rice seeds and seeding: the selected rice seeds are sown on the processed soil uniformly, and then the soil is compacted; and performing sprinkling irrigation: the lifting micro-sprinkling irrigation equipment buried under the ground is used for irrigating the soil sown with the rice seeds, and the water content of the surface of the soil is 40-60%. Therefore, the precision irrigation to the crops is realized; excess water accumulation in the rice field is avoided; and the utilization ratio of water resources is increased. In addition, the straws are turned into organic fertilizers with the passage of time; straw turnover is realized indeed; the method contributes to improving the yield and quality of grains; and environmental pollution due to straw burning is avoided.

The present invention discloses a close-planting and high-yield cultivation method for maize. The method comprises the following steps: selecting an excellent hybrid maize variety to carry out wide-narrow row planting, wherein the row spacing is 17 cm, single particle seeding is used in seeding, and the seeding rate is 2.5-3 kg / 667 m<2>, and the seeding depth is 5-6 cm; applying an organic fertilizer during the deep ploughing process every autumn; applying 60 kg calcium-phosphorous fertilizer and 7 kg granular potassium fertilizer per 667 m<2> before seeding; performing furrow application of 10 kg diammonium phosphate per 667 m<2> after seeding; topdressing 15kg diammonium phosphate, 20 kg urea and 7kg granular potassium fertilizer per 667 m<2> after maize jointing; applying 25-30 kg urea and 7 kg granular potassium fertilizer per 667 m<2> at tasseling stage; applying 10-15 kg urea per 667 m<2> at 30-40 days after silking; spraying 20-30 mL maize roborant per 667 m<2> at maize jointing stage; preventing and controlling plant diseases and insect pests; and harvesting the maize. According to the close-planting and high-yield cultivation method for maize disclosed by the present invention, the maize yield per unit area can be improved.

The invention relates to a production method of an organic / inorganic compound fertilizer containing chelating trace elements. The production method comprises the following steps: preparation of a granulation material, preparation of a chelating trace element solution, preparation of a borax solution, preparation of mixed liquid, melting, granulation and the like. The method provided by the invention can be used for not only making full use of industrial waste, avoiding the secondary pollution and reducing the production cost, but also optimizing the efficient utilization of chemical nutrients; moreover, the method has the characteristics of wide source of raw materials, convenience in transportation and application, promotion of mechanical operation and the like as well as broad application prospect. The product can be used for improving the soil fertility and obviously increasing the crop yield.

The invention discloses a tea garden shading net covering cultivation method and a tea garden shading net covering cultivation device. The tea garden shading net covering cultivation device comprises a shading net frame and a double layer shading net releasing-retracting mechanism, wherein as shown in figure 1, the shading net frame is formed by connecting a main upright column and auxiliary upright columns through a dragging steel rope and a fixing steel rope, the span between each two auxiliary upright columns can reach 40-60m, the shading net frame is suitable for a large area tea garden due to the large span between each two auxiliary upright columns, the double layer shading net releasing-retracting mechanism is driven by a motor, and drives a shading net to release and retract a net line through a line coiling cylinder so as to complete releasing and retraction of the shading net, and the lower layer of the shading net is 2-2.2m far away from the ground, and facilitates production operation in the tea garden. The double layer shading net is provided with two layers which are respectively low and high in shading coefficient, and then the layer low in shading coefficient can be used in spring and autumn, the layer high in shading coefficient can be used in summer and winter, and even the two layers of the double layer shading net can be used simultaneously in the winter so as to reduce frost or low temperature freeze injury, and furthermore correct management and use of the tea garden shading net covering cultivation method and the tea garden shading net covering cultivation device can facilitate improvement of growing environment of the tea garden at all seasons, prolong a picking period of tea leaves, and improve tea quality.

A formed mushroom dreg matrix block is prepared from the following raw materials in parts by weight: 70-90 parts of crushed mushroom dregs, 3-10 parts of macromolecular organic plastic particles, 3-5 parts of adhesive chemical short fibers, 3-5 parts of a nitrogen-phosphorus-potassium compound fertilizer and 3-5 parts of other nutrients. In the edible mushroom cultivation process, nutritional ingredients with high nitrogen content, such as bran, cottonseed hulls and soybean meal, and mineral substances, such as gypsum and magnesium sulfate, are added, mushroom dregs remained after edible mushroom cultivation are fully crushed by a crusher, the crushed mushroom dregs are put into a screening machine to screen out mushroom dreg fine powder with the diameter of 1-3 mm, the mushroom dreg fine powder formed after screening, the macromolecular organic plastic particles and the adhesive chemical short fibers are fully stirred at the high temperature of 150-300 DEG C, the mixture is pressed into a required block or container shape through a mold after being stirred while hot, a plurality of holes are formed in the surface of the matrix block, the matrix block is fully dried or air-dried after being cooled and shaped, and finally the formed mushroom dreg matrix block or container is formed.

The invention relates to humic acid urea and a preparing method thereof. The preparing method includes: firstly preparing humic acid synergistic liquid, then adding the humic acid synergistic liquid into urea melt liquid during urea producing, and finally performing high tower cooling granulation on mixture of the humic acid synergistic liquid and the urea melt liquid to obtain the humic acid urea. The humic acid urea has the advantages of being high in nitrogen content and productivity, low in cost, good in effect, suitable for field crops, easy to popularize and use and the like. In production practice, the humic acid urea reduces ammonia volatilization loss by restraining soil urease activity, has the characteristics of being excellent in slow release performance, high in in-season nutrient use ratio, environment-friendly and the like, is simple in manufacture technology, wide in raw material sources, easy to operate, low in cost, high in productivity and environment-friendly, and has wide application prospect in specific production practice.

The invention relates to a flame retardant modified asphalt waterproof paint, which is prepared from the the following raw materials by weight: 50-65 parts of 90# petroleum asphalt; 60-70 parts of water; 22-26 parts of styrene butadiene latex; 4-6 parts of an emulsifier; 2-4 parts of polyvinyl alcohol; 2-5 parts of N-methyl-3-aminopropyl trimethoxy silane; 3-5 parts of a flame retardant; 5-7 partsof polyoxyethylene polyoxypropylene ether; 3-5 parts of triethyl citrate; 0.1-0.5 part of hydrogenated rosin glyceride; 1-3 parts of sodium polyacrylate; and 10-15 parts of modified nano calcium carbonate. The flame retardant modified asphalt waterproof paint prepared by the method provided by the invention has good film compactness and high stability, a waterproof layer formed by the waterproofpaint in a building has large bonding strength with a cement concrete base surface and good waterproof effect, moreover, after modification, the product has substantially improved flame retardance, water tolerance, aging resistance, acid and alkaline resistance and the like.

The invention discloses a labor-saving and mechanized pear orchard establishing method for south China, which comprises the steps of arrangement of roads and drainage systems, land preparation and bedding, construction of shaping frames, selection of variety and specification of seedlings, field planting of the seedlings, and management after field planting. Aiming at the restraining factors suchas high underground water level, heavy soil, dispersed planting and high labor cost caused by rainy weather of the pear orchard production areas in south China, the labor-saving and mechanized pear orchard establishing method provided by the invention is characterized in that the orchard roads and the drainage systems are strictly arranged to solve the problem of mechanical impassability and difficult drainage, the seedlings are reasonably selected for field planting, and the management of the seedlings after field planting is controlled, so that the growth uniformity of fruit trees is improved, early production of the pear trees is realized, and the yield and quality of the fruits are improved.

The invention provides a method for cultivating bulbus fritillariae ussuriensis, and belongs to the field of bulbus fritillariae ussuriensis cultivation. The method comprises the steps of soil selection, soil preparation, seed selection, seed planting treatment, bulbus fritillariae ussuriensis cultivation, fertilization, bed fertilizer supplementation, water supplementation, bulbus fritillariae ussuriensis flower removal, stem breaking and field closing. For bulbus fritillariae ussuriensis cultivation, 0.05 m of land edge is made at the edge of the flat ground to serve as a first group of marked lines; the first group of marked lines are arranged at an interval of 2.2 m to form a cultivation area I, the right side lines of the cultivation area I are arranged at an interval of 0.3 m to forma mechanical operation channel, and a second group of marked lines is made; the second group of marked lines are arranged at an interval of 1m to form a second cultivation area, the right side linesof the second cultivation area are arranged at an interval of 0.3 m to form a mechanical operation road, a third group of marked lines is made, the third group of marked lines is arranged at an interval of 2.2 m to form a third cultivation area, the right side lines of the third cultivation area are arranged at an interval of 0.3 m to form a sidewalk, and a fourth group of marked lines is made; and during sowing, furrowing is adopted for sowing, the furrow depth is 0.05-0.07 m, and the furrow bottom is kept flat. The method has the advantages that the land utilization rate can reach 70% or above by adopting a bedding furrow sowing method, the land utilization rate is increased, benefits are high, mechanical operation is facilitated, and the effect is saved.