98results about How to "Prevent fruit cracking" patented technology

The invention provides a sweet orange planting method. At a germination stage, 1-1.5kg of a germination fertilizer which is topdressed twice is applied per hole; the germination fertilizer comprises the following raw materials in parts by weight: 15-18 parts of urea, 8-12 parts of ammonium nitrate, 18-20 parts of potassium chloride, 35-45 parts of calcium superphosphate, 20-25 parts of diatomite, 1-2 parts of JT composite bacteria and 20-30 parts of biogas slurry; and at a fruit swelling stage, 3-5kg of a fruit swelling fertilizer, which is topdressed once in ring-shaped ditches with depth of 10-20 cm, is applied per hole; and the fruit swelling fertilizer comprises the following raw materials in parts by weight: 30-35 parts of urea, 40-45 parts of potassium chloride, 25-35 parts of calcium superphosphate, 2-5 parts of magnesium sulfate, 0.1-0.2 part of borax and 20-30 parts of biogas slurry. According to the sweet orange planting method disclosed by the invention, tree growth and fruit swelling needs of sweet orange are met by a proper nitrogen phosphorus potassium ratio; tree seedlings are strong in freezing resistance and resistance to plant diseases and insect pests; and the fruit yield is increased by 15%-20%.

The invention discloses a foliage spraying preparation for promoting fruit setting and fruit swelling and enhancing crop stress resistance. The preparation comprises the ingredients including fulvic acid, DA-6, 2,4-D sodium salt, alpha-pimacol, gibberellin, zeatin, dimethyl sulfoxide, butylcellosolve, sodium tetraborate, zinc sulfate, ferrous sulfate, molybdenum sulfate and magnesium sulfate. After the preparation is sprayed, nutrient substances are rapidly transferred from blade surfaces and are gathered at the plant reproduction active part, and the center endogenous hormones level of fruits is improved; the cell division is promoted, the cell size is amplified, the fruit swelling is accelerated, the chloroplast development and the chlorophyll formation are promoted, the photosynthetic efficiency of leaves is improved, and the unit area yield is increased; the flowing of nutrient substances to female flowers is enhanced, the fruit development speed is accelerated, the uniform fruit development is controlled, the deformity is reduced, the fruit surface is kept fresh, bright and smooth, and the commodity rate is obviously improved; and the immunological competence of plants are excited, the resistance is improved, the occurrence of the pest and disease damage is reduced, the senescence is delayed, and the picking period and the fruit shelf period are prolonged.

The invention relates to the field of agriculture, in particular to a water flush fertilizer containing chitosan oligosaccharide. The water flush fertilizer consists of the following components in percentage by weight: 20-35% of amino acid raw powder, 10-20% of calcium nitrate dehydrate, 5-15% of monopotassium phosphate, 0.1-0.5% of chitosan oligosaccharide, 3-8% of iron vitriol, 1-5% of zinc sulfate heptahydrate, 1-5% of boric acid, 15-30% of potassium nitrate, 3-8% of urea and 0.01-0.05% of brassinolide. According to the water flush fertilizer provided by the invention, chitosan oligosaccharide is innovatively added into the water flush fertilizer, so that nutrition can be provided to plants continuously, the action time is long, different essential growth periods of the plants can be promoted, the environment is not affected, effective protecting films can be formed on the surfaces of the plants, and the anti-disease property and the resistance of the plants are improved.

The invention discloses a frame of cultivation hedgerows for a fruit tree rain shelter green house, a bracket of which is of a 'V' shape and composed of a column, a beam and skew girders. The angle between the skew girders is 110 to 120 degrees; a line connecting the peak of the column and the two ends of the beam is a circular arc, which is stretched between the corresponding brackets. Among the six lines, the three lines corresponding with the column peak and two ends of the beam form a fixed frame for laying the rain shelter green house, while the three lines between the peaks of an inverse triangle formed by the corresponding bracket beam and skew girders form a fixed frame for fruit branch location. The invention has the advantages of simple and scientific structure, sound construction, low cost and durable in use; the fruit trees can form high stems and growing planes for V-shaped inclined branches, thus overcoming the problems of irregular branch growing and forming no single plane owing to lack of location frames, bad Photosynthesis and inconsistence of fruiting positions, which is favorable for fruit branch location, convenient for pruning and drug spraying and can reduce the frequency of diseases and insect pests, reduce the utilization quantity of pesticide, prevent from fruit cracking and is good for improving the fruit quality.

The invention discloses a leaf fertilizer for preventing and treating fruit cracking of red jujube. The leaf fertilizer is prepared from, by mass, 38-42% of potassium nitrate, 33-36% of ammonium nitrate, 7-8% of magnesium sulfate, 3-4% of mono potassium phosphate, 8.5-10% of anhydrous calcium chloride, 0.7-0.85% of ethylene diamine tetraacetic acid, 0.5-0.65% of ferrous sulfate heptahydrate, 1.5-2.5% of inositol, 0.04-0.05% of glycine, 0.001-0.003% of thiamine hydrochloride, 0.005-0.15% of pyridoxine hydrochloride and 0.005-0.02% of niacin, and the mass sum of components is 100%. The leaf fertilizer for preventing and treating the fruit cracking of the red jujube contains nutrient elements such as potassium, phosphorus, nitrogen, calcium and magnesium, through reasonable matching, the toughness of the red jujube is improved, accordingly, the fruit cracking of the red jujube is avoided, and the weight of the red jujube is increased. The preparing method of the leaf fertilizer for preventing and treating the fruit cracking of the red jujube is easy.

The invention belongs to the technical field of fruit planting and particularly relates to a cultivation method capable of increasing cherry nutrition content. The cultivation method specifically includes the steps of firstly, before cherry trees germinate, planting field soil is deeply ploughed at the depth of 20-22cm, watering is continuously performed twice, the time interval between two watering is 4-5 days, the watering quantity of each watering is 670-680mL / plant, furrowing is performed 2-3 days after the watering, biological organic fertilizer is applied to the roots of the cherry trees, the root application depth is 18-20cm, and compacting the soil after the root application; secondly, nutritional liquid is sprayed to leaf surfaces once before blossoming, the nutritional liquid is sprayed to the leaf surfaces once before fruiting, and weak flowers and weak fruits are removed before the nutritional liquid spraying; a calcium superphosphate aqueous solution is applied to the roots of the cherry trees from the period before blossoming until harvesting, the root application is performed every other 16-18 days, and the root application quantity of each time is 245-250mL / plant. By the method, the soluble solid content, titratable acid content and VC content of cherries can be increased effectively, and the flavor and nutritional value of the cherries can be increased.

The invention discloses an orchard soil layer management water-fertilizer-saving root and tree nurturing technical method. By combing functional characteristics of an apple root system, the method of surface layer covering, middle layer micro-complementing and lower layer water reserving is adopted, and a local stability excellent environment suitable for root growth is established, so that aims of water and fertilizer conservation, leaf protection, and root and tree nurturing are achieved.

The invention discloses a method for producing winter-period fruits of atemoya, and belongs to the technical field of fruit-tree fruiting-period regulating cultivation. The method includes the following steps of 1, cultivating fruiting base shoots; 2, conducting anti-season flower promoting clipping; 3, conducting hand pollination operation; 4, conducting anti-season fruit nursing. According to the method, the ecological climate conditions are combined to adjust the flower-promoting clipping time, the fruits can normally grow in winter and mature to be in the market accordingly, and the problems that in the prior art, atemoya production is low in setting fruit rate and relatively small in size, and dehiscent fruits are prone to existing in the soft-ripe stage are solved; meanwhile, the operation technology is simple and easy to carry out, cost is low, and the new method is provided for safety production of the atemoya winter-period fruits in the middle south of Guangxi.

The invention discloses a planting method capable of increasing yield of Hami melon. The planting method includes the following steps: 1) seed treatment and seedling raising: selecting full Hami melon seeds to be dried in sunlight for 1-3 days, soaking the Hami melon seeds in hot water, putting the Hami melon seeds in a bag, soaking the Hami melon seeds in soaking solution, and performing ultrasonic oscillation; and sowing the Hami melon seeds in a seedling raising plate. 2) soil preparation and planting: performing fall-plow and winter-irrigation on a melon land, and embedding a soil conditioner and a humic acid compound fertilizer into the melon land; and building an arc greenhouse in the melon land; and 3) field management. According to the planting method, pretreatment is performed on the Hami melon seeds, diseases and pests can be prevented, and the survival rate of the Hami melon seedlings can be improved; the soil conditioner and an insect expelling solution having rich nutriments and a sterilization and deinsectization effect are prepared; and the reasonable and scientific field management method is performed, the obtained Hami melons are even in thickness of peels and size, are high in yield, and are short in growth maturity cycle; and the sugar content of the obtained Hami melons can reach more than 20%.

The invention discloses liquid fertilizer preventing fruit cracking of winter jujubes and a preparation method of the liquid fertilizer. The liquid fertilizer is prepared from 1000 parts of an activeliquid fertilizer base preparation, 12-23 parts of nitrogen, 16-28 parts of potassium, 3-12 parts of phosphorus, 16-32 parts of boron, 15-30 parts of calcium, 1-8 parts of magnesium, 0.1-5 parts of zinc, 0.1-5 parts of molybdenum and 0.1-5 parts of iron; the liquid fertilizer contains 10-21 parts of glycine, 1-8 parts of leucine, 1-9 parts of lysine, 3-12 parts of tryptophan, 1-9 parts of gibberellin, 16-26 parts of organic calcium and 10-22 parts of inorganic calcium salt. With the adoption of the liquid fertilizer, the fruit cracking can be remarkably reduced, fruit quality of the winter jujubes can be improved, and per mu yield of the winter jujubes can be increased.

The invention discloses a harvesting and processing method of Carya illinoensis. The method includes the following steps that an ethephon preparation with concentration of 200 mg / kg is sprayed to bearing branches for one time four weeks before harvesting of the Carya illinoensis, and Ca(OH)2 is used for adjusting a power of hydrogen (PH) value to be 7.0; when the ethephon preparation is sprayed for two weeks and 70% of fruit episperm is cracked, the Carya illinoensis is harvested; deadwood and sundries under trees are cleared away, and a black mesh fabric is spread; a machine shakes the bearing branches, fruits falling on the mesh fabric are timely collected, sundries are removed, episperm which is not cracked is removed in a huller, and the fruits are washed by running water; and rinsing, ozone disinfection and drying with a drying machine are performed so that moisture contents of the fruits are lower than 4.3%, and storage is finally performed. By means of the harvesting and processing method, fruit maturity periods of the Carya illinoensis can be unified, natural fruit drop is reduced, a launch date of the fruits is shifted to be earlier, output is improved, fruit cracking and fruit color changing caused by solarization are avoided, and qualities of the fruits are improved so that selling prices of the Carya illinoensis are effectively increased.

The invention provides a chelated calcium fertilizer prepared by utilizing shells as well as a preparation method and an application thereof. The chelated calcium fertilizer is mainly prepared from 1.3-2.2 parts by weight of shell powder, 1 part by weight of glacial acetic acid and 0.19-0.66 part by weight of sugar alcohol through the steps of pretreatment, acidolysis, chelating and fine filtering, wherein the sugar alcohol is composed of 1 part by weight of propanetriol, 4 parts by weight of glucose and 9 parts by weight of sorbitol. According to the chelated calcium fertilizer prepared by utilizing shells as well as the preparation method and application thereof, the calcium resource of the shells is fully utilized, and the environment-friendly effect is facilitated; the product has the advantages of being free of heavy metals, high in calcium content, rich in nutrients, easy to absorb and the like, can be used for crops, traditional Chinese medicine materials, and fruit trees for a long term, and does not generate any adverse effects on plants and human bodies.

The invention discloses a cultivation method for increasing the yield of Gaza sugar oranges. The method comprises the steps of variety selection, land management, field planting, plant management and disease and pest prevention and cure. According to plant management, plant growth modifier liquid added with water is sprayed before the flower bud differentiation period and during the flower falling period and the fruit expansion period, differentiation of flower buds of the Gaza sugar oranges is promoted during the flower bud differentiation period, flower forming genes are induced, the number of female flowers is effectively increased, stigmas and male flowers are protected, repression is removed, self-pollination or cross-pollination and fertilization are promoted, proline synthesis in crop bodies can be improved, protein denaturation caused by plant cells under the low-temperature and high-temperature states can be avoided, the flowers setting the Gaza sugar oranges are effectively protected from cold injury, and can set fruits normally, and the fruits can be effectively prevented from being scorched by the sun, cracking or shrinking; fruit expansion is accelerated, the fruit shape is lengthened, the effect is remarkable, and the yield of the Gaza sugar oranges is increased.

The invention discloses a high-yield and fruit cracking prevention cultivation method for red dates, and belongs to the technical field of fruit tree cultivation. The method includes the steps of firstly, selecting an appropriate block; secondly, conducting compact planting and dwarfing; thirdly, grafting good varieties; fourthly, conducting vernalization cultivation on date trees; fifthly, managing water and fertilizer; sixthly, conducting cracking prevention management at the fruiting stage; seventhly, manually harvesting fruits. According to the method, no greenhouses need to be erected, bagging does not need to be conducted, and the method has the advantages of being low in cost and easy to operate; the problem that due to the fact that illumination insufficiency is caused by the greenhouses and bagging, quality of the red dates is reduced is solved.

The invention discloses an active bio-organic fertilizer and a preparation method thereof. The fertilizer is prepared from raw materials in parts by weight as follows: 20-35 parts of livestock and poultry manure, 5-10 parts of rice husk, 20-40 parts of Chinese chestnut waste, 3-5 parts of biological humic acid, 0.1-1 part of a conditioner, 3-5 parts of mycorrhizal fungi organisms, 1-3 parts of peat ash, 1-3 parts of straw ash, 1-5 parts of distillers' grains, 3-8 parts of bacillus subtilis, 3-10 parts of bacillus amyloliquefaciens and 1-8 parts of auxiliary materials. The active bio-organic fertilizer has slight odors and almost no odors through deodorization, can change organic waste into wealth to realize recycling as an efficient and environment-friendly product and has broad application prospects.

The invention discloses a method of comprehensively increasing flower and fruit bearing of citrus gonggan and belongs to the technical field of agricultural product planting. The method of comprehensively increasing flower and fruit bearing of citrus gonggan disclosed by the invention performs management of increasing the set of fruits from aspects of a flower bud differentiation stage, a flower bud stage, a full-bloom stage, balanced fertilization, a fertilizing conditioner, topdressing and the like, citrus gonggan can be comprehensively and effectively prevented from cracking, and moreover, from flowering to blossom falling, flower bud differentiation of branches of bearing shoots are promoted by spraying agents in different stages, so that the fruit cracking rate is reduced, the fruit setting rate is increased, and the output and quality of the citrus gonggan are greatly improved.

The invention discloses a preparation for cucumber foliage spraying. The preparation comprises brassinolide, gibberellin, compound sodium nitrophenolate, zinc methionine, water-soluble chitosan oligosaccharide, Chinese medicine extracting solutions, ethyl alcohol, dimethyl sulfoxide and muyu stone water, wherein the Chinese medicine extracting solutions comprise radix sophorae flavescentis, pericarpium granati, prickly ash seeds, scutellaria baicalensis, climbing groundsel herbs, fructus cnidii, manyprickle acanthopanax roots, radix angelicae dahuricae and panax notoginseng. The preparation for cucumber foliage spraying is sprayed once when female flowers are not bloomed, the cucumber quality is good, pest and disease damage does not occur, and compared with the prior art, the yield is improved by over 20 percent.

The invention discloses a gamma-quantum original energy recovery compound including gamma-poly-glutamic acid, a quantum synergistic factor, an active organic matter, amino acid, humic acid and a trace element; the gamma-poly-glutamic acid is a fermentation culture substance; the quantum synergistic factor is a microbial agent; the amino acid includes a mixture of glycine, glutamic acid, alanine and aspartic acid; the trace element includes a soluble compound of iron, copper, boron, zinc and manganese; the amount of the gamma-poly-glutamic acid is 5%-50%; the amount of the quantum synergistic factor is 3%-12%; the amount of the active organic matter is 20%-50%; the amount of the amino acid is 5%-15%; the amount of humic acid is 2%-18%; the amount of the trace element is 2%-25%; the amount of an accessory auxiliary agent is 1%-3%. The gamma-quantum original energy recovery compound has the multiple properties of quick acting, slow release, fertilizer saving, production increasing, and green environmental protection; and with the long-term use, the gamma-quantum original energy recovery compound can improve a soil environment, increases the utilization rate of a fertilizer, and can obviously improve the quality of crops.

The invention relates to a sweet cherry rainproof culture method suitable for the area between Yangtze River and Huai River. The method includes the following steps of firstly, forming ridges, and erecting a rainproof shed; secondly, pouring nutrient solutions on roots of sweet cherries at the end of March each year; thirdly, removing polyethylene films on the top of the rainproof shed on sunny days 7 days before flowering of the sweet cherries; fourthly, picking weak-growth-vigor cherry flowers on sweet cherry trees in the flowering period of the sweet cherries according to the ratio of picked flowers to total flowers being 1:4, and spraying a urea solution with the mass fraction of 0.01% on leaf surfaces and flowers of the sweet cherries according to the spraying amount of 20 kg / mu. According to the method, in the flowering seasons of the sweet cherries in the area between Yangtze River and Huai River from the end of March to the beginning of May, the area between Yangtze River and Huai River is just in the weather-variable seasons after the beginning of spring, it is ensured that the flowering and pollinating process of the sweet cherries is not influenced by rainy weather, the applicability of the sweet cherries to the environment is improved, the fruit setting rate is increased, cracked fruits and malformed fruits are effectively avoided, and the stable and high yield of the sweet cherries is achieved.

The invention relates to a production process of refined petroleum emulsion in water and belongs to the field of pesticide manufacturing process. The refined petroleum emulsion in water is made from refined petroleum, film-forming agent, emulsifiers, plant nutrients, defoaming agent, stabilizers, antifreezing agent and deionized water, by uniform dispersion using a high-speed shear mixing emulsifier. The refined petroleum emulsion is innoxious and non-irritant or low-toxic or low-irritant to animals and human beings, is harmless to crops, has environmental affinity, enhances the resistance of crops, and can promote the growth of crops. The refined petroleum emulsion can kill main insect pests, regulate the growth of crops, enhance resistance to cold and diseases and increase the yield of crops. The invention has the advantages of use of water as solvent, reduced waste of resources, no discharge of three wastes, environmental friendliness, scientific formulation, advanced process, low cost and good effect.

The invention discloses a humic acid type fruit bagging-free film agent and a use method thereof. The method comprises the following steps of dissolving sodium alginate in water, uniformly stirring, and adding tween-20 and span-20 to form a sodium alginate solution, completely dissolving potassium humate in water, and adding glycerol to form a potassium humate solution, fully stirring the sodium alginate solution and the potassium humate solution to form an agent A, and dissolving calcium chloride in water to obtain an agent B, firstly spraying the agent A on the surfaces of the fruits, and then spraying the agent B. The humic acid type fruit bagging-free film has the characteristics of bacteria resistance, bacteriostasis, freezing resistance, insect pest resistance and the like, the film forming time is shortened, and the humic acid type fruit bagging-free film also has better film forming property; the shading performance is correspondingly improved, the characteristics of fine and smooth fruit surfaces, beautiful and gorgeous color and luster, prevention of plant diseases and insect pests, reduction of pesticide use and the like of traditional bags can be realized, and the problems of rough fruit surfaces, serious water rust, dim color and luster and the like caused by rainwater soaking, untight sealing and the like due to paper bags and the like can be solved.

The invention discloses a Hami melon planting method capable of preventing fruit cracking. The Hami melon planting method includes the following steps: 1) seed treatment and seedling raising: selecting full Hami melon seeds to be dried in sunlight for 1-3 days, soaking the Hami melon seeds in hot water, soaking the Hami melon seeds in soaking solution, and performing ultrasonic oscillation; and sowing the Hami melon seeds in a seedling raising plate. 2) soil preparation and planting: performing fall-plow and winter-irrigation on a melon land, and embedding a soil conditioner and a humic acid compound fertilizer into the melon land; and building an arc greenhouse in the melon land; and 3) field management. According to the Hami melon planting method, pretreatment is performed on the Hami melon seeds, diseases and pests can be prevented, and the survival rate of the Hami melon seedlings can be improved; the soil conditioner and an insect expelling solution having rich nutriments and a sterilization and deinsectization effect are prepared; fruit holders are provided, even illumination of the whole Hami melon can be ensured, and sunburns on peels of the Hami melon and fruit cracking can be prevented. The obtained Hami melons are even in thickness of peels and size, are high in yield, and are short in growth maturity cycle; and the sugar content of the obtained Hami melons can reach more than 20%.

The invention relates to the field of fruit tree cultivation, in particular to a method for preventing citrus gonggan fruit cracking. According to the method, water is drained in rainy seasons, irrigation is carried out during droughts, soil water imbalance can be prevented, and flesh expansion and fruit cracking which are caused because fruits absorb too much water are avoided. Scarification and weeding are carried out in time on planting land, nutrition absorption of fruit trees can be enhanced, and healthy growth of the fruit trees is promoted. Fruit cracking caused by malnutrition of part branches and leaves can be avoided due to reasonable pruning. Pericarp toughness can be improved and pericarp growth can be promoted by irrigating fruits with urea or spraying urea on the fruits, and the fruit cracking probability is reduced.

A cultivation method of a big-fruit date tree is characterized in that the aim of preventing big dates from cracking is achieved by the cultivation method which comprises controlling growth heights and the number of branches of the date tree, building a vinyl house and applying organic fertilizer. During long-term production practice, the fact is found that because fruits of the big-fruit date tree yulingdang are large in size and contain much water, the dates can crack severely during a crisp maturing period when meeting with rain or wind, and the dates lose edible value and commodity value. Because the production method utilizing the vinyl house is adopted, a good ecological small environment is created for growth of the dates, the problem of fruit cracking during the crisp maturing period of the dates is solved, the yield and the quality of the dates are improved simultaneously, and the economic benefit and income of fruit growers are increased.

The invention provides a cultivation method for reducing the fruit cracking rate of crisp plums, and relates to the technical field of crisp plum cultivation. The technical problems in the prior art that the appearance of the crisp plums is affected and even the crisp plums are prone to rotting and deteriorating due to the fact that the crisp plums are prone to cracking due to environmental problems are solved. The cultivation method for reducing the fruit cracking rate of the crisp plums specifically comprises the following steps: conducting variety selection, specifically, selecting a crisp plum variety with the mature period earlier than that of a crisp plum planting field in rainy seasons; conducting sod cultivation of the crisp plum planting field, specifically, planting crisp plum seedlings in the crisp plum planting field, planting short-stem leguminous crops in the crisp plum planting field, and harvesting, turning and pressing the mature leguminous crops; conducting fertilization management, specifically, applying a bio-organic fertilizer, a compound fertilizer, a boron fertilizer, a calcium fertilizer and a zinc fertilizer to each adult crisp plum seedling; and conducting rain sheltering measures, specifically, covering rain sheltering films above the crisp plum seedlings in frequent rainwater periods.

The invention relates to a jujube planting method. According to the method, the growth height and the number of branches of a jujube are controlled, a plastic greenhouse is built, and the method is an organic fertilizer cultivation method for preventing jujube fruits from cracking. In long-term production practice of the inventor, the inventor found that the jujube fruits do not have a use value and a commodity value because the jujube fruits named as jade bell are large and full of water. Due to the plastic greenhouse adopted in the production method, a good ecological niche is provided to the growth of the jujube fruits, a problem of jujube fruit cracking in a brittle ripening period is solved, the quantity and quality of the jujube fruits are improved, and the economic benefits and income of farmers are increased.

Provided are a composition based on preventing pear trees from fruit cracking, and a fertilization method and application thereof. The composition based on preventing the pear trees from the fruit cracking is characterized in that the composition contains a fruit surface protective agent and a fertilizer reagent, wherein the fruit surface protective agent is set to contain pumpkin crude extract and aloe crude extract, and the fertilizer reagent is set to contain a mineral composition, water retention agent, humic acid, sheep manure, pig manure, Bacillus mucilaginosus and arbuscular mycorrhizalfungi. The composition based on preventing the pear trees from the fruit cracking has the advantages of protecting peel from external stimulation through the fruit surface protective agent forming aprotective film on the fruit of the pear trees, and satisfying the demand for mineral elements and moisture in the growth period of pear fruit, preventing fruit cracking and improving commodity performance of the fruit through the fertilizer reagent.

The invention provides a chelated calcium fertilizer prepared from oyster shell, and a preparation method and application thereof. The chelated calcium fertilizer is mainly prepared by carrying out pretreatment, acid hydrolysis, chelation, refined filtration and the like on the following components in parts by weight: 1.5-2 parts of oyster shell powder, 2.7-5 parts of concentrated hydrochloric acid and 0.2-0.6 part of sugar alcohol. The mass percent of the concentrated hydrochloric acid is 20-37%. The weight ratio of the solute in the concentrated hydrochloric acid to the oyster shell powder is 1:(1.5-2). The sugar alcohol is composed of the following components in parts by weight: 1 part of glycerol, 4 parts of glucose and 9 parts of sorbitol. The chelated calcium fertilizer can fully utilize the calcium agent resource of the oyster shell, is beneficial to environment friendliness, has the advantages of no heavy metal, high calcium content, rich nutrients and the like, can be easily absorbed, can be used on crops, traditional Chinese medicinal materials and fruit trees for a long time, and can not generate any adverse effect on the plant and human body.

The invention provides a method for rescuing an early maturing flat peach embryo and belongs to the technical field of embryo rescuing. The method comprises the following steps: 1) after hybridizing an early maturing flat peach mother plant in a rain-sheltering facility, carrying out mother plant management; 2) spraying a 150 to 250 time solution of paclobutrazol within 40d after a red flower budforming period and a flowering period; 3) carrying out fruit thinning at a fruit core-hardening stage; 4) harvesting 4 to 8d before fruits become mature and obtaining in-vitro fruits; 5) separating the flat peach embryos from the in-vitro fruits in step 4) and inoculating the flat peach embryos into a WPM culture medium; culturing at 2 to 6 DEG C for 70 to 90d to obtain inoculated embryos; and 6)culturing the inoculated embryos under a light illumination condition of 18 to 25 DEG C and transplanting. The method provided by the invention has relatively high germination rate, seedling emergencyrate and transplanting survival rate.

The invention relates to a fruit crack preventive and an application thereof and belongs to the technical field of crop growth regulators. The fruit crack preventive is characterized by containing thefollowing components in parts by weight: 10 parts of compound amino acid, 0.12-0.18 part of gibberellin A4+7 or gibberellin A3, 0.7-1.3 parts of vitamin D3 and 0.015-0.15 part of 6-benzylamine adenine, wherein the compound amino acid is a mixture of tyrosine and lysine. The fruit crack preventive is sprayed to full plants in use before a fruit expansion stage. By utilizing the fruit crack preventive, cracked fruits of melons and fruits can be effectively prevented and treated. By adding vitamin D3 and compound amino acid in a formula of a preparation of the fruit crack preventive for cooperative use, the tenacity of peel of the melons and the fruits can be widely and effectively improved, and the fruit crack preventive has a good fruit crack prevention effect.