59results about How to "Shorten the nursery period" patented technology

The invention discloses a macadamia nut green branch grafting method. The method comprises enabling half-lignified green branches with 1 / 2 of leaf blades to serve as cion, enabling normally-growing nutrition bag seedlings without limiting seedling ages to serve as rootstock, adopting a cut-grafting method to perform grafting, and after grafting, planting the rootstock in a plastic film arched shed under a sunshelter to perform cultivation and management. The half-lignified green branches serve as the cion to be grafted to the nutrition bag rootstock seedlings. Due to the fact that lignification of the cion is low, tissue cells are active, calluses are formed quickly, the reserved leaf blades can make nutrient substance through photosynthesis so that the nutrient substance is supplied to grafting openings for healing, the macadamia nut green branch grafting method improves grafting survival rate by 15-20% in comparison with a hard branch grafting method, and the grafting survival rate is over 95%. The grafting survival rate of macadamia nut is greatly improved, a nursery stage is shortened, seedling cultivating cost is reduced, and the grafting survival rate is not limited to time and rootstock roughness. Besides, in the green branch grafting process, regardless of the seedling ages, as long as the half-lignified green branches are available, the green branches can be grafted all the year round, and the macadamia nut green branch grafting method is suitable for multiple effects of massive industrial seedling culture and provides technological support for macadamia nut seedling culture development.

The invention discloses a cutting propagation method of eustoma grandiflorum. The cutting propagation method includes: day temperature of a female parent cultivation greenhouse is kept at 20-30 DEG C, night temperature is kept at 13-18 DEG C, relative air humidity during the day is kept to be 50-75%, and relative air humidity during the night is kept to be 70-85%; and sunshine time in a year is less than 13 hours. When a lateral bud of a female parent plant has eight leaves and one heart, a bigslip is cut out, cutting is performed on the bigslip after the bigslip is dipped in rooting powder, shading coefficient of an outer shading net of a cutting greenhouse is 30%, inner relative air humidity is kept to be 80-95% through high pressure mist, temperature is at 20-25 DEG C, CO2 concentration in the cutting greenhouse is kept to be 600-800ppm through CO2 fertilization, and a cutting seedling is transplanted to a flower cutting production greenhouse after the cutting seedling takes root. The cutting propagation method of eustoma grandiflorum reduces root disease rate and leaf disease rate substantially, shortens seed breeding stage, and promotes the eustoma grandiflorum pigslip to take root. Rooting time of eustoma grandiflorum is 23-25 days, rooting rate of eustoma grandiflorum is above 92%, and planting percent of eustoma grandiflorum is above 87%. The cutting propagation method of eustoma grandiflorum is suitable for commercial and large-scale propagation of eustoma grandiflorum.

The invention discloses a mango grafting method using green braches with leaves. The method comprises the following steps: preparing semiligneous green braches with leaves as scions; cutting the scions, soaking and wetting the cut scions with clear water for 2 hours at most, taking the scions out of the clear water and grafting the soaked scions on root stocks, and then binding grafting cuts in an alternate unenclosed manner with discharge outlets reserved; and cultivating the grafted seedlings in a plastic thin film heat-insulation and moisture-preservation tunnel under a sun shelter. According to the invention, the grafting method using green braches with leaves is adopted; the scions used in the method are low in degree of lignifications, the histocyte is active, callus is formed very quickly; moreover, the reserved leaves can conduct photosynthesis to produce nutrient substances to support the regrowth of the grafting cuts; the grafting survival rate is higher than 98%; in addition, if only semiligneous green braches are available, the grafting method can be implemented all the year round regardless of the seedling age of the root stocks; therefore, the problem that the survival rate of the traditional stiff branch grafting method is low is solved, the grafting survival rate is improved, the seedling cultivation cycle is shortened, the seedling cultivation cost is lowered, the grafting survival rate is free from the influence of seasons and the thickness of the root stocks. The mango grafting method using green braches with leaves is applicable to large-scale industrial seedling cultivation.

The invention provides a cutting propagation method for tea tree old branches. The method comprises the following steps: cutting base parts of cutting slips into 45-degree inclined diagonal planes by taking the tea tree old branches with the stem thickness of 1-2cm and the length of 15-35cm as cutting slips; disinfecting by using 70% thiophanate methyl 1000-time liquid; immersing by using ABT solutions with the concentrations from low to high before cutting; after cutting, keeping the overshadow degree for 75-85%; and spraying the disinfecting liquid to keep soil humidity until roots grow. The tea tree old branches which are survived by cutting are transported to pots and are pruned and coiled to be molded into a tea tree potted landscape. The method is short in period, rapid in molding, low in production cost and simple to operate. The problem that the tea tree old branches are difficult to survive by cutting is solved; bred new plants have thick stem and are old; a molded mini-type potted landscape can be rapidly manufactured and the ideal modeling effect of simple and unsophisticated and powerful advantages is realized.

The invention discloses a method for breeding of cabbage seedlings. An artificially prepared substrate is adopted to breed cabbage seedlings in a rainproof greenhouse, harm of diseases, pests and weeds which can be spread in soil can be avoided, various effects on the cabbage seedlings caused by difficult-to-control defects of physical and chemical properties of soil can be eliminated completely, normal growth of the cabbage seedlings can be ensured, environmental conditions of the nutrients, temperature, moisture and light required for growth of the cabbage seedlings can better provided, adverse effects of dramatic changes in the environmental conditions on the seedling breeding process can be avoided, smooth breeding of the cabbage seedlings can be ensured, and commercialized and intensified scale production of the cabbage seedlings can be realized. Large quantities of uniform, delicate, disease-free and robust cabbage seedlings can be cultivated in a short term, the breeding period of the seedlings can be shortened, the uniformity of transplanted seedlings can be improved, concentrated transplanting of the cabbage seedlings in a contiguous region in the best seasons can be ensured, the consistency and uniformity of growth of cabbage plants can be improved, and a good foundation can be laid for balanced and efficient production of cabbages.

The invention discloses a method for cultivating citrus container mycorrhiza seedlings by combined application of AMF and PGPR (Plant Growth Promoting Rhinoacteria) bacterium agents. The method comprises the following steps: preparing an AFM mycorrhiza inoculant, preparing a PGPR bacterium agent, disinfecting seedling culturing soil, accelerating germination of trifoliate orange seeds, sowing the seeds and inoculating. According to the method for cultivating the citrus container mycorrhiza seedlings, designed by the invention, the mycorrhiza infection rate of citrus root systems can be improved, nutrients of nutrient soil mineral substances can be activated very well, and the absorption and utilization of nutrients and moisture by the citrus container seedlings are promoted; the citrus container seedlings which have higher stress resistance and survival rate are cultivated; the ordered and rapid growth of industrialized large-batch container seedlings is facilitated, and the seedling culturing period is shortened; citrus trees can benefit from the mycorrhiza growth promoting effect in the whole life and the application amount of chemical fertilizers in the container seedlings is reduced.

The invention relates to a rapid tissue culture method of passion fruits. The method comprises the steps of explant acquisition and pretreatment, primary induction, subculture, rooting culture, bud strengthening culture and acclimatization and transplant. The rapid tissue culture method of the passion fruits has the advantages that various factors and culture methods such as the explant acquisition and pretreatment, primary induction, subculture, rooting culture and bud strengthening culture of the passion fruits are screened, and appropriate seedling hardening and raising measures are adopted, so that a passion fruit tissue culture rapid propagation technical system is established, the system has the advantages that the seedling raising cycle is short, the survival rate is high, the bud multiplication coefficient is high, seedlings easy to root are healthy and strong, and no virus exists, technical support is provided for passion fruit tissue culture industrialized seedling production, and the method is of great significance to promote the development of the passion fruit industry.

The invention discloses a peach tree green stock-green branch cut grafting rapid seedling growing method. A half-lignification green branch is used as a scion to be grafted to a green stock of a nutrition bag in a cut grafting mode, leaves below the grafted port of the green stock are kept, the grafted port and the scion are bound by plastic strips in a sealed mode, only bud eyes are exposed, as the lignification degree of the green stock and the scion is low, tissue cells are active, the leaves left on the green stock can continue to conduct photosynthesis to manufacture nutrient substances which are supplied to calluses, coalescence of the grafted port is achieved rapidly in a growing period, and therefore the rate of survival of grafting of the lignification scion in a resting period is improved by 20%-30% compared with annual rootstock seedlings . Grafted seedlings can be conveyed out of a flower nursery for garden building from August to September, the seedlings of the nutrition bag do not need pruning, leaf cutting and watering, the root caps are not damaged after the seedlings are planted, a seedling buffering period is avoided after planting, and the leaves fall down and dormancy occurs after the seedlings sprout and slightly mature. The rate of survival of planting of garden building is high, the seedlings grow rapidly, fructification is achieved early, the yield is high, and the peach tree green stock-green branch cut grafting rapid seedling growing method is particularly suitable for garden building of mountainous regions where are dry and have no irrigation conditions in winter and spring.

The invention provides a tomato planting method. The tomato planting method mainly comprises the multiple links of seed preprocessing of 'ultraviolet radiation, flotation and seed soaking', seedling cultivation of 'germination accelerating, sowing, fertilization and field planting', scientific planting of 'sectioned control and variable-temperature management', photosynthesis promotion of 'lighting increase and temperature control and timely carbon supplementing', high-yield effect improvement of 'physical disease prevention and biological insect control' and the like. Tomatoes planed by adopting the tomato planting method have uniform fruits, are high in yield and short in growth period, also contain rich nutritional substances, have better taste and flavor, and the planting benefits aregreatly increased.

The invention discloses a high-survival-rate snow pear seedling culture method. The method includes the following steps that semi-lignified snow pear twigs in the current year are selected; the snow pear twigs are soaked in clean water for 1-1.5 h and then soaked in a soaking agent for 8-12 h; the cuttage planting time ranges from May to June; the snow pear twigs are vertically inserted into soil; the snow pear twigs are irrigated with clean water twice in the morning and in the evening for three days after cuttage and irrigated with an addition agent in cooperation within three weeks starting from the fourth day; a snow pear pest control and prevention agentia is sprayed to prevent and control pests. According to the cuttage seedling culture method, as the twigs not inserted are treated, callus of the twigs can be promoted to form, and the survival rate of twig cuttage is increased. The adopted snow pear pest control and prevention agentia is environmentally friendly, simple in manufacturing technology and low in cost; an adopted cuttage medium is of a three-layer structure, by means of reasonable nutrition configuration of all layers, the cuttage survival rate of snow pears is increased most efficiently, and snow pear seedling are high in activity.

The invention relates to the field of plant seedling culture, in particular to a plant seedling culture method, which is suitable for culturing strong seedlings during leaf vegetable plant seedling culture. At a strong plant seedling culture stage of the culture method, red LED (light-emitting diode) lamps and blue LED lamps are used for irradiating plants to culture strong seedlings in a strong seedling culture box, wherein the daytime temperature of the strong seedling culture box is kept to be 23-27DEG C, the nighttime temperature of the strong seedling culture box is kept to be 15-20DEG C and the relative humidity of the strong seedling culture box is kept to be 70-80 percent. The plant seedling culture method has the advantages that the aboveground parts of small seedlings can be enabled to be strong, the photosynthesis is promoted, the underground parts of the small seedlings are well-developed, the absorption of water and nutrient substances is promoted, the growth of the plants is facilitated, the transplanting survival rate is improved, the seedling culture period and the transplanted seedling resuming growth period are shortened, and the yield is improved.

The invention discloses a method for planting green vegetables. The method includes steps of (1), selecting and preparing lands, to be more specific, selecting the lands with fertile soil and excellent drainage and preparing the lands; (2), ridging the planting lands; (3), growing seedlings in seedling beds, to be more specific, filling seedling growing trays with seedling growing substrates, sowing vegetable seeds and growing the seedlings; (4), fixing plants; (5), carrying out colonization management, to be more specific, regularly watering the plants and regularly applying fertilizers; (6), controlling plant diseases and insect pests. The method has the advantages that the method includes the steps of applying the fertilizers to the planting lands for the vegetables and uniformly plowing the planting lands, growing the seedlings in the seedling beds, carrying out colonization management, controlling the plant diseases and the insect pests and the like, and accordingly the vegetables planted by the aid of the method are high in yield and free of pollution; the organic fertilizers and harmless botanical insecticide liquid are used, accordingly, the problems of soil staining and hardening and the like due to use of chemical fertilizers can be solved, and the problem of harm on the health of human bodies due to pesticide residues can be solved.

The invention discloses a grape planting method. The method comprises the following steps: (1) land selection and oil preparation; (2) seeding on seedbed; (3) seedling fix planting; (4) building grape trellis; (5) fix planting management; (6) diseases and pests prevention and control; (7) picking. The invention provides a grape planting method. Through the steps of land selection and oil preparation, seeding on seedbed, seedling fix planting, building grape trellis, diseases and pests prevention and control, and the like, the grape germination rate is high, the seedling growth vigor is strong, growth cycle is short, and yield is high, and through the use of farm manure and harmless plant source insecticide solution, the problem of soil waterlogging and hardening caused by the use of chemical fertilizers are solved, and the harm of DDT, 666 pesticides and other pesticide residues to human health is avoided.

The invention belongs to the technical field of cultivation of fruit trees, and particularly discloses rooting liquor for facilitating rooting and sprouting of baccaurea ramiflora cuttage shoots. Therooting liquor consists of the following components in percentages by mass: 50-500%o of naphthylacetic acid, 300-900%o of indolebutyric acid, 5-10% of saccharose, 0.3-0.9%% of KMnO4 and 0.5-5% of ethanol. By the rooting liquor, rooting of the baccaurea ramiflora cuttage shoots can be facilitated effectively, the rooting rate is increased, and the problem that rooting is difficult during cutting propagation of baccaurea ramiflora is solved. The invention further discloses a method for facilitating rooting and sprouting of baccaurea ramiflora cuttage shoots. The method comprises the following steps: treatment of the cuttage shoots, cutting, sunshading, later-period management and the like. By the method, the rooting rate and bud sprouting rate of the cuttage shoots can be facilitated, the rooting rate can be 75% or above, the number of generated roots is large, branches of seedlings are robust, buds are plump, a growing seedling period is shortened, and the method is pollution-free to the environment, and is suitable for being popularized and used in a large range.

The invention discloses a method for realizing yield increase of flue-cured tobacco through densely-sown seedling raising and optimized transplanting. According to the method, tobacco seedlings are cultivated by a floating-disc densely-sown method, water is impounded by a rainwater collecting technology so as to fight a drought, and the tobacco seedlings can be transplanted at an appropriate period by using a shaft well type young seedling transplanting method. The method is characterized by comprising the steps: carrying out floating-disc densely-sown flue-cured tobacco seedling raising by increasing the quantity of holes of floating discs so as to culture the tobacco seedlings with four leaves and one core; carrying out optimized tobacco seedling transplanting, carrying out subtillage winter resisting, land preparation, band application and ridging in good time, then, transplanting the tobacco seedlings with four leaves and one core by the shaft well type flue-cured tobacco young seedling transplanting method; and carrying out management according to the conventional method after transplantation. By adopting the method, under usual circumstances, the time for seedling raising is shortened by 30 days, and labor for seedling raising and transplanting is saved; and the transplanting time is advanced by 15 days, and the yield of tobacco leaves is increased by 16kg per mu. According to the method, for plateau canyon regions where tobacco is suitable for being planted but often encounters spring drought, the problems that the seedling raising cost of the flue-cured tobacco is high and transplanting is difficult during spring drought can be solved, the production cost investment of the flue-cured tobacco can be reduced, and the yield and output value of the flue-cured tobacco are increased.

The invention relates to a rapid stereoscopic soilless rice seedling growing technology. The technology includes the steps that plant straw ferment powder, turf soil, coconut shell powder and other materials are made into a seedling growing matrix, seeds are sown into a hard seedling growing matrix tray, first-step darkroom germination acceleration is performed for 3 days, the room temperature is kept ranging from 30 DEG C to 33 DEG C, and a darkroom terrestrial heat supply mode is adopted for warming; only scattered light is adopted for a stereoscopic rice seedling growing greenhouse which is kept shady, bright and ventilated, an upper cover and a ventilation opening are automatically opened and closed, the temperature is kept being a room temperature ranging from 28 DEG C to 30 DEG C, and the humidity is kept being 85%, wherein the whole seedling growing time ranges from 10 days to 12 days, and the height of seedlings ranges from 12 cm to 13 cm; the seedlings with the height ranging from 12 cm to 13 cm are transplanted into a natural lighting greenhouse, hardened for 4-5 days at a normal temperature and then inserted into a field, wherein the whole seedling growing process lasts for 15 days to 20 days. According to the technology, non-renewable soil resources are saved, the environment is protected from being damaged, and crop straw and other waste resources are reutilized; the use space of the seedling growing greenhouse is saved, the room temperature, humidity, ventilation, illumination and other conditions of the greenhouse are automatically controlled, the seeding growing period is shortened, the seedling survival rate is increased, and the seedling quality is improved.

The invention discloses a novel method for growing seedlings of snow pear trees. The method includes the following steps that semi-lignified tender buds of the snow pear trees in the current year are selected; after branches of the snow pear trees are soaked by clear water for 1-1.5 hours, the branches are soaked through a soaking agent for 8-12 hours; planting time ranges from May to June; the branches of the snow pear trees are vertically inserted in cutting media; clear water is poured twice a day in the morning and evening in three days after cutting is completed, and auxiliaries begin to be poured in a matched mode in three weeks from the fourth day. According to the novel method for growing the seedlings of the snow pear trees, due to the fact that non-cutting branches are treated in the cutting seedling growing method, calluses of the branches can be promoted to be formed, and the cutting survival rate of the branches is increased. The cutting media adopted in the method are of a three-layer structure, through reasonable nutrition configuration of all the layers, the cutting survival rate of the snow pear trees is increased in a highest efficiency mode, the activity of the seedlings of the snow pear trees is high, and the high survival rate of seedling transplanting is guaranteed.

The invention discloses a light and simple flue-cured tobacco transplanting method. Loose soil with good permeability is selected to carry out field treatment. After completion, ridges of 10-15cm areformed, row fertilization of a base fertilizer is quantitatively performed according to the number of transplanted plants, ridges of 20-25cm are formed again; when the soil moisture content of the soil reaches 60-70%, a membrane covers, the membrane is covered by soil of 2-3cm; tobacco seedlings are selected, holes are vertically drilled in the soil covering the membrane, the selected tobacco seedlings are selected into the bottoms of the holes, and the tobacco seedling substrate is covered with fire soil; after transplanting, watering, fertilizing and dosing were carried out. The method shortens the seedling raising period, reduces the work cost, improves the quality and efficiency, reduces the production period, increases the yield, and is suitable for popularization. Not only the seedling can be transplanted in time in the optimal transplanting period and the DOUGONG phenomenon is reduced, but also the influence of adverse conditions on the yield and quality of tobacco leaves is avoided. Soil covering is performed firstly and then hole drilling is then performed, the membrane around the hole is compacted, so that the membrane and tobacco stem contact fully, there is no gap between the orifice membrane and the ridge body, so as to play a good role in inhibiting weeds, and ensure the growth and development of tobacco seedlings.

The invention discloses a rapid grafting method for atemoya. The method comprises the following steps that tender stems with internodes of the atemoya are selected as explants, disinfection, callus culture, subculture and rooting culture are carried out so as to obtain tissue culture seedlings, then the tissue culture seedlings are subjected to seedling hardening so as to rootstocks; branches of the atemoya are selected as scions; and before grafting, the scions are firstly put into a disinfectant to be disinfected and are put into a rooting culture medium to be soaked, then the scions are grafted onto the rootstocks by adopting a conventional cut grafting method and then are wrapped by using plastic films, and then the grafted seedlings are managed by using a conventional method. The rapid grafting method has the advantages that the atemoya seedlings obtained by grafting can guarantee the excellent variety characteristics, the survival rate of the grafted seedlings can reach 92% or above, in addition, the operation is simple, the cost is low, the grafting time is obviously shortened, the application prospect is wide, and a powerful technical support is provided for accelerating the rapid development of the atemoya industry.

The invention discloses an eggplant seedling growing matrix. The matrix comprises plant ash, fresh kelps, a pigeon dung and sheep dung mixture, sandy soil, Scirpus validus Vahl, Cedrela sinensis bark extract, vermiculite, cyclohexylsulfo phosphoric triamide, gray dolomite powder, sodium hyposulfite, Ceratophyllum demersum L., Achyranthes aspera, Silene conoidea L., Dianthus chinensis and a water retaining agent. Raw materials of the eggplant seedling growing matrix have wide sources and low cost; and a zymolytic fresh kelp and Scirpus validus Vahl mixture is added to an eggplant matrix, and the Cedrela sinensis bark extract is also added, so abundant nutrition elements are provided for eggplant seedlings, the growth of the eggplant seedlings is promoted, the survival rate of the seedlings is improved, the seedling growing period of the eggplant seedlings is shortened, eggplant plants cultivated with the matrix have a greatly improved fruiting rate, and eggplants produced by the eggplant plants are crisp and tender and have good mouthfeel.

The invention discloses a seedling culture method for a snow pear. The method includes the following steps that a semi-lignified epicormic branch of the snow pear in the current year is selected; the branch of the snow pear is immersed in clear water for 1-1.5 hours and then immersed in an immersion agent for 8-12 hours; insertion planting time is May to June; the branch of the snow pear is vertically inserted into soil; within three days after cuttage, the branch is watered with clear water two times in the morning and evening every day, within three weeks since the fourth day, the branch is irrigated with additives in a matched mode; pest control is conducted, and snow pear disease and pest control chemicals are sprayed. According to the cuttage seedling culture method, through treatment on the branch which is not inserted, formation of calluses of the branch can be promoted, and the cuttage survival rate of the branch is increased. At the initial stage of the snow pear branch, the branch is irrigated with the clear water regularly, the branch slowly adapts to the new environment, the branch is irrigated with the additives in the matched mode, formation of roots of the branch is accelerated, the seedling culture period of the snow pear is shortened, seedlings are prevented from being invaded by plant diseases and pests, and the root system of the seedlings is stronger. The adopted pesticide for preventing and treating the snow pear plant diseases and pests is environmentally friendly, simple in manufacturing process and low in cost.

The invention provides a high-efficiency mango grafting method, and relates to the technical field of grafting. The method comprises the following steps of (1) preprocessing of a scion; (2) preprocessing of a stock; (3) grafting and (4) management after grating. The method can be used to overcome the problem that traditional hard branch grafting is low in the survival rate, the survival rate of the grafting is improved and avoided from influence of seasons and stock thickness, the seedling growing stage is shortened, the seedling growing cost is reduced, high quality of the scion is maintained, a grafted seedling has higher drought, cold, disease and fertilizer resistance and adaption, the output is improved, and the method is suitable for large-scale industrialized seedling growing.

The invention relates to a quick Rosa Damascena Bulgaria breeding method capable of generating air through photoautotrophy. The method comprises the steps of treatment of a seedling bed, treatment ofin-vitro branches, cutting and management after cutting, wherein according to treatment of the seedling bed, a medium prepared from agricultural waste straw, vermiculite, perlite and ferric oxide hydrate is put into inverted seedling pots, and then the inverted seedling pots are fixed to horizontal tube type or tank type or box type air seeding culture solution cycle supply devices with through holes reserved in the upper portions, all the air seeding culture solution cycle supply devices are erected in a three-dimensional tread shape, water pumps are connected with a water storage tank with aheater and an agent feeding inlet, and an LED cold light source is arranged above the seedling bed; according to management after cutting, after cutting is finished, a seedling solution is circularlyand alternately injected into or drawn out of the air seeding solution cycle supply devices by using the water pumps, and root promoting and sterilization are conducted by using the seedling solutionand dry air. By means of the method, the production time is greatly shortened, the seedling production efficiency is improved, the application range is wide, the method is less affected by environment intervention, the yield per unit area is high, and the seedling quality is high.

The invention relates to a cuttage seedling culture method of liquidambar styraciflua. The method comprises following steps: preparing multiple seedbeds with double sunshade and timed spray device; cutting stout branches of the liquidambar styraciflua of the year in the morning or evening, cutting the branches into one section with two bud eyes, removing the lower bud-leaf, cutting off 2 / 3 of upper bud-leaf, flat cutting upper cutting mouths 1 to 2 cm from bud joints, obliquely cutting lower cutting mouths clung to bud joints at 45 DEG to obtain inserting ears; soaking the above inserting earswith rooting powder solution; inserting the lower cutting mouths of the inserting ears into the seedbeds with exposed 3 to 4 cm upper buds; after sear cutting, wetting the seedbeds with shower for one time; from the start of cutting, always keeping the double shading of the seedbeds; the spraying frequency of the timed spray device is adjusted as once every hour; the cutting and seedling growingof liquidambar styraciflua is completed. By means of the cuttage seedling culture method of liquidambar styraciflua, the emergence rate is raised; large scale plantation is achieved and the method isgood for the plantation and popularization of the liquidambar styraciflua.

The invention discloses a soilless plug seedling raising method of a watermelon. A seed of the watermelon is subjected to seed sunning and seed soaking treatment; the germination inhabitation effect of a substance on the surface of the seed is decreased; subsequently, the seed is soaked by using an agent; the vermiculite triggered treatment is combined; the seed is soaked by adopting gibberellin;afterwards, the vermiculite triggered germination acceleration treatment is carried out; the germination rate of the seed is obviously improved; a plug seedling raising medium contains a nutrient content meeting a seedling raising requirement, and is used for providing a nutrient substance needed by the growth of the seedling of the watermelon; in addition, a proper amount of iron oxide nano particle is added; a root system of the watermelon is promoted to stretch; the growth of the seedling of the watermelon is effectively promoted; the soilless seedling raising of the watermelon is carried out by adopting the method provided by the invention; the seedling emergence tidiness of the seed is better; moreover, the probability that a misshapen seedling appears is decreased; the growth of theseedling can be also effectively promoted; the whole seedling raising period of the watermelon is shortened and the purposes of coming into the market in advance, getting a high yield and increasing an income are achieved.

The invention discloses a paris polyphylla seed seedling raising method. The method comprises the following steps: (1) collecting seeds; (2) drying in the shade; (3) forcing to break the seed dormancy; (4) forming the specification of a seedbed; (5) hill-seeding and covering with sand and soil; and (6) irrigating. The seed only has a small oval undifferentiated embryo when the paris polyphylla seed is harvested. The application of the invention adopts the combination of isobutanol solutions at different concentrations with an assistant, the paris polyphylla seed is processed in a synergistic way, the development and the germination of the embryo of the paris polyphylla seed are remarkably promoted, the seedling raising period is shortened, and a seedling emerges only after the paris polyphylla seed is sown for 8-10 months.

The invention discloses a snow pear cutting seedling method. The method comprises the steps of selecting semi-lignified twigs of snow pears in the current year; immersing the snow pear twigs with clean water for 1-1.5 hours, and then immersing the snow pear twigs with soaking agents for 8-12 hours; conducting insertion implantation at May or June; inserting the snow pear twigs into soil vertically, wherein the insertion implantation depth ranges from 2 to 3 cm, and the insertion implantation density is 10*10 cm; during the three days after the insertion implantation, irrigating the twigs with clean water twice every day, once in the morning and once in the evening, and from the fourth day, irrigating the twigs with addition agents for three weeks every three or four days. According to the snow pear cutting seedling method, by treating the non-inserted twigs, the callus tissue of the twigs can be promoted to form, and the survival rate of twig cutting is improved. During the initial stage of the snow pear twig cutting, the twigs are irrigated with clean water regularly, the twigs are made to adapt to the new environment slowly, then under the cooperation of the addition agents, the generation of roots of the twigs is accelerated, the seedling period of the snow pears is shortened, the seedlings are prevented from being damaged by pests and diseases, and the seedling roots are stronger.

The invention discloses a ventilation-free simple management method for a seedling bed for raising cotton seedlings and belongs to a technique for crop cultivation management. The method comprises the following steps: drying a seedling bed used for raising cotton seedling in a micro pot or in a common nutrition pot when cotyledons of a cotton seedling fully expand; mixing a protective fungicide of Cocide or Kocide 2000 and 15 percent Paclobutrazol in the same proportions and diluting the mixture 1 / 250, or mixing a systemic fungicide of 60 percent Carbendazim, Procymidone and 15 percent Paclobutrazol and diluting the mixture 1 / 170; spraying the diluted mixture on the seedling till the cotyledons and leaves of the seedling are fully covered with the medicine; drying the seeding for two days and closing the seedling bed; removing a plastic film and hardening seedlings when the cotton seedling grows 2 to 3 leaves and one core for 3 to 5 days; and then transplanting the cotton seedling. The management method for the seedling bed ensures high temperature of the seedling bed, rapid growth of cotton seedling, and seedling raising time shorten 5 to 7 days compared with the prior ventilation plastic film removal-free management method.

The invention discloses a medium for growing loofah seedlings. The medium comprises plant ash, alga, pigeon excrement and monkey excrement mixtures, sandy soil, herba spirodelae, black walnut bark extract, vermiculite, cyclohexyl thiophosphoric acid triacid amide, gray dolomite powder, sodium thiosulfate, ceratophyllum demersum, ranunculus sieboldii, hypecoum erectum, dianthus chinensis and water-retaining agents. The medium for growing the loofah seedlings has the advantages that raw materials for the medium come from wide sources, and accordingly the medium is low in cost; alga and herba spirodelae mixtures which are subjected to enzymatic hydrolysis are added into the medium for loofah, the black walnut bark extract is fittingly added into the medium, accordingly, abundant nutrient elements can be provided for the loofah seedlings, growth and development of the roots of the loofah seedlings further can be promoted, the survival rate of the seedlings can be increased, the growing periods of the loofah seedlings can be shortened, and the flowering rate and the fruit setting rate of cultivated loofah plants can be greatly increased.

The invention discloses a seedling growing method of pollution-free sweet potato seedlings. The seedling growing method of the pollution-free sweet potato seedlings comprises the steps of acceleratinggermination, building a seedbed, arranging seeds and growing seedlings, managing the seedbed, expanding reproduction and the like, so that the seed sweet potatoes are sown in advance, the seedling growing period is shortened, the survival rate of the sweet potato seedlings is increased, the disease resistance of the sweet potato seedlings is improved, pollution is avoided, a large amount of vegetative propagation is conducted to reduce the seedling growing cost, and the requirement on the sweet potato seedlings in product is met; furthermore, the sweet potato seedling transplanting survival rate is high, the sweet potato block is large and the economic benefit is significant.