311results about How to "Improve seedling survival rate" patented technology

The present invention is one kind of nutrient reinforcing agent for artificial fry raising of marine animal, and relates to the recipe and preparation process of micro algae bait nutrient reinforcing agent. The microalgae bait nutrient reinforcing agent consists of several kinds of micro algae containing different nutritious components and has grain size of 5-20 microns. It contains great amount of DHA, ARA and natural astaxanthin, and can raise the immunity and survival rate of raised marine animal. It can meet the requirement of hatched fries of fishes, shrimps and shells in feed. For example, when the microalgae bait nutrient reinforcing agent is used in raising turbot, it can raise the survival rate and lower the albinism rate greatly.

The invention discloses a tomato seedling growing matrix which is made of the following raw materials by volume: 30-50% of maize straws, 5-12% of sterilization decoction dregs, 15-30% of cow dung, 10-20% turf, 10-30% of vermiculite and the balance, water-retaining agent. The matrix is made through the steps of raw material breaking, burdening, fermentation decomposing and mixing. The tomato seedling growing matrix is rich in nutrient contents of total nitrogen, total phosphorus, rapid available phosphorus and rapid available potassium, and can obviously promote healthy strong growth of tomato seedlings. The tomato seedlings are stable in growth in the aspects of dry weight, stem diameter, leaf area and the like, the seedling emerging survival rate is high, and the matrix has the advantages of being good in seedling growing quality and low in cost.

The present invention relates to one kind of environment friendly feed for white South America prawn fry. The environment friendly feed can promote the growth of white South America prawn fry, raise its survival rate and disease resistance, and reduce environmental pollution. The feed has nutritious components comprising coarse protein 50-55 wt%, coarse fat 15-20 wt%, total sugar 6-7 wt%, ash weight portions15-20 wt%, and water 6-10 wt%; and material composition comprising protein material 69.75-79.47 wt%, fat material 4-7 wt%, sugar material 5 wt%, feed adhesive 3 wt%, antioxidant 0.305-1.205 wt%, phagostimulant 1.6 wt%, composite vitamins 2 wt% and composite mineral salts 1-4 wt%.

The invention relates to a large-leave fast-growing locust tree mother root cutting and seedling method. The method comprises the following steps of: (1) selecting a proper cutting and seedling period; (2) preparation work before cutting and seedling: weeding, ploughing and leveling soil, establishing a drainage system and applying enough base fertilizer; (3) mother root preparation: selecting annual large-leave fast-growing locust trees, digging the mother roots, avoiding the damage to root bark, and covering wet sand on the mother roots after digging to keep the humidity; (4) cutting: cutting the mother roots into root sections of different lengths according to the diameters of the mother roots, cutting the root sections into leveled soil, inserting the mother roots into the soil to make the top ends expose out of the soil surface, cutting according to certain plant space and row space, and treading the soil after finishing cutting; and (5) final-period management: keeping suitable humidity of the soil, weeding, and performing deinsectization. By the propagation method provided by the invention, the seedling survival rate, the root system utilization rate and the propagation coefficient of the mother roots can be improved, and the seedling time can be shortened.

The invention discloses a damask rose twig cutting seedling-raising method which includes the steps: S1 performing laying and disinfecting of seedling beds; S2 performing preparation and disinfection of culture media and layout of plugs; S3 cutting semi-lignified twigs without diseases and insect pests on stock plants, performing water spraying and moisturizing on the cut semi-lignified twigs, cutting cuttings at shade places, and performing disinfection on the cut cuttings; S4 plunging deep holes in the culture media, treating the disinfected cuttings by the aid of rooting agents, performing cutting on the treated cuttings, lightly pushing sealing openings with fingers after cutting, and enabling the culture media and the cuttings to be closely connected; S5 performing reasonable atomizing and light supplement management after cutting. 2-3 bud joints are reserved on each cutting, the length of each cutting is about 8cm-10cm, 4 leaflets of the upper portion of each cutting are reserved, the position 5 millimeters away from the uppermost bud joint of each cutting is horizontally cut, the position 3-5 millimeters away from lowermost bud joint of each cutting is cut into a 45-degree inclined plane, and the cutting depth does not exceed 3cm. The method is rapid in rooting, high in transplanting survival rate, simple and easy to operate, and a seedling-raising period can be greatly shortened.

A method for reproducing Jerusalem artichoke culturing seedlings on vernalization bed until the seedling has 15-20 cm in height, cutting the seedling into segments, culturing seedlings with said segments in the culture medium prepared from humas soil, fertilizer, trace elements and macro elements, and transplanting by hole sowing with soil. Its advantage is high survival rate. Said Jerusalem artichoke can be used to prevent soil erosion.

The invention discloses a method to plant Medicago sativa in saline-alkaline soil and improve soil and fertilizer condition. The method comprises: applying an improving fertilizer, plowing, performingrotary tillage and leveling the land, sowing, managing the field, and harvesting, wherein the improving fertilizer is made from desulfurization gypsum, activated carbon, flyash, plant stalk granules,bentonite, zeolite, urea, ammonium phosphate, blast furnace slag particles and a microbial agent having a weight ratio of (30-40):(10-14):(6-10):(16-18):(8-12):(4-8):(3-5):(3-5):(4-6):(1-3). saline-alkaline soil is improved by taking the measures such as saline-alkaline soil improving fertilizer and planting Medicago sativa, the survival rate and yield of Medicago sativa are high, the improving of the whole saline-alkaline soil is excellently effective, and the improving process is green and free of pollution. Therefore, the method is an application technique worthy of wide popularization.

The invention relates to a method for cultivating a macrobrachium rosenbergii offspring seed by using an aquatic ozone culture system. In the method, a square corner-cutting offspring seed culture pond with a proper area is built and macrobrachium rosenbergii is stocked at a proper density and technologies of reasonable temperature regulation and control, oxygenation measures, feed management and cultivation water body control and the like are matched. The method has the beneficial effects that the fine and standardized management is carried out on a traditional technology of cultivating the macrobrachium rosenbergii offspring seed; and in addition, due to use of the aquatic ozone culture system, the offspring seed culturing survival rate is improved, the physique of the offspring seed is enhanced, the offspring seed culturing period is shortened and the offspring seed culturing yield and economic benefit are greatly improved.

The invention relates to a method for inducing the spawning of the parent Solen grandis and collecting fertilized eggs. The method comprises the following steps: the parent Solen grandis which has smooth surface of shells, no mechanical damage on feet and appearance, healthy body and high activity and also has the 8-11cm length of shells is collected to perform maturation and temporary cultivation in an induced spawning pond; when the meat condition of the parent Solen grandis is up to more than 85% and the genital gland is dissected to find that sperms/eggs can flow by gravity, the induced spawning can be performed, the liquid Isochrysis galbana extract is used to cover the entire bottom surface of the pond in the induced spawning process to stimulate the parent Solen grandis for 20-25min; when spawning is performed and the density of fertilized eggs in the induced spawning pond is up to 10-15 per milliliter, and the siphon principle is utilized to fast move the fertilized eggs to a culture pond to culture. The method of the invention has the advantages that the utilization rate of the parent Solen grandis is high, the induced spawning effect is good, the fertilized eggs are convenient and fast to collect, the fertilization rate is up to 72%, the breeding survival rate is high, etc. Only a small number of parent oysters can be used so as to obtain enough fertilized eggs for artificial breeding, thus the method has good application prospect.

A bittern worm tablet as the feed of young prawn is prepared from powdered material, bittern worm pulp, fish paste, fish oil, minerals, vitamines, cholesterol, lecithin, chitosan, polymycose and spirulina through superfine pulverizing, proportionally mixing, colloid grinding, homogenizing and tabletting. Its advantages are high effect, low cost and no pollution to water.

The invention relates to a vegetable transplanting production line. According to the technical scheme, a hydroponic transplanting production line of leaf vegetable seedlings is characterized by comprising a plug tray conveying station and a seedling transplanting station, wherein the plug tray conveying station comprises two plug tray conveying tracks which are parallel mutually and transversely distributed and a plug tray conveying device which is positioned on the plug tray conveying tracks in a rolling manner for conveying plug trays; the seedling transplanting station comprises a pluralityof transplanting tracks which are arranged longitudinally and distributed at equal intervals transversely, a plurality of hydroponic pipe working tables which are arranged longitudinally between theadjacent transplanting tracks for placing hydroponic pipes, a seedling transplanting s device movably positioned on the transplanting tracks and an in-place track which is arranged between the plug tray conveying tracks and the transplanting tracks. The production line has three functions of seedling conveying, seedling extraction and seedling transplanting, reciprocating work in a leaf vegetableseedling taking area and a seedling planting area is realized, sustainable seedling transplanting work is guaranteed, and high mechanization of a hydroponic transplanting process of the leaf vegetableseedlings is realized.

The invention relates to a planting method of asparagus. The planting method includes the steps of land selection, soil preparation, seed selection, pretreatment, sowing, planting, daily management and harvesting. By means of the planting method of asparagus, a base fertilizer is applied to a planting land in the early stage of sowing, and thus the fertility of soil is improved; after seeds are pretreated, a nutrition disk in which a cultivation substrate is loaded is used for cultivating seedlings, the occurrence of pests and diseases can be reduced, the survival rate of the cultivated seedlings can be largely improved, and the seedlings are then planted in a greenhouse; in the growth process of asparagus, through reasonable fertilization, nutrient elements required by the growth stage ofthe asparagus can be met, the yield of seedlings per mu is improved, the soil hardening phenomenon can be relieved, and the air permeability and water permeability of soil are thus improved; since the applied fertilizer is a pollution-free fertilizer, the environmental pollution can be reduced, the growth of asparagus can be promoted, the yield and quality of asparagus can also be improved, and the method is very suitable for planting of large quantities of asparagus.

The invention provides a microbial agent. The microbial agent comprises a culture medium and thalli, wherein the thalli comprise Bacillus subtilis, Baclicus lincheniformis, Bacillus amyloliquefaciens and Bacillus safensis. The microbial agent provided by the invention can obtain a good plant seedling index and further improve yield and quality of vegetables, thereby having broad application prospects in the field of vegetable seedling raising. In addition, by using the microbial agent provided by the invention, a plant rhizosphere microbial environment can be improved, and beneficial bacteria are increased, thereby inhibiting the growth of harmful bacteria and further improving the disease resistance of plants.