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83 results about "Preharvest" patented technology

Preharvest refers to activities on the farm or ranch that occur before crop or livestock products are sold. Preharvest food safety activities, for example, is a phrase often used to describe USDA’s efforts, through research and cooperative work, to foster changes in onfarm production that can reduce public health risks in live animals before they are sent to slaughter.

Method for mechanically harvesting winter rape efficiently with low power consumption

The invention discloses a method for mechanically harvesting winter rape efficiently with low power consumption. The method comprises the following steps of: A, constructing a rape group suitable for mechanical harvest: selecting the variety suitable for mechanical production, performing mechanical precise-quantity direct seeding when the soil water content is 30 to 40 percent, and constructing an ideal group and a plant type by fertilizer and water application and disease inset pest and weed control; B, adjusting a mature period: spraying a ripener two to three days before the harvest of rape seed ripening stage in the regions of contradictory seasons; C, harvesting at right time: observing and measuring the morphological physiological index of the plant before the harvest of the rape, wherein more than 95 percent of siliques, namely yellow loquat fruits in the cropland are suitable for mechanical harvest; D, mechanically harvesting and measuring loss rate: harvesting by a special rape harvesting mechanism in a combining way in the period suitable for harvest; E, smashing and returning rape straw to the cropland: flooding the straw in water immediately after the harvest of rape, decaying and returning to the cropland. The method is easy and convenient to operate, improves a one-time efficient branch height, reduces the branch number, reduces the thickness of the pod layer, solves the problems of high harvest loss rate, and improves the yield.
Owner:INST OF OIL CROPS RES CHINESE ACAD OF AGRI SCI

Storing and fresh-keeping method of welsh onion

The invention discloses a storing and fresh-keeping method of welsh onion. The method comprises the following steps: 1, carrying out preharvest treatment: sprinkling a gibberellin and 6-benayl aminopurine mixed aqueous solution on the welsh onion 1-3 days before welsh onion harvesting; 2, carrying out empty store disinfection: carrying out empty store sterilization treatment by using a fumigation disinfectant 1-3 days before the entrance of the welsh onion to the store; 3, harvesting the welsh onion; 4, carrying out rapid pre-cooling and low temperature pre-storage: rapidly pre-cooling the welsh onion in the store, and carrying out low temperature pre-storage for 2-10 days; 5, carrying out fresh-keeping treatment: sterilizing the welsh onion by using a sterilization hot fogging agent in the pre-cooing period before packaging; 6, packaging: packaging 10-25 kg of the fresh-kept welsh onion in every ventilating packaging bag; and 7, refrigerating: and storing the packaged welsh onion at -1 to 0 DEG C under a humidity of 75-80%. The storing and fresh-keeping method of welsh onion, provided by the invention, is practical, safe and effective, realizes the refrigeration of the welsh onion for 4-6 months or more, allows the welsh onion to be fresh, and substantially reduces microbial diseases and the weight loss.
Owner:山东营养源食品科技有限公司

Preharvest and postharvest compound treatment method for AP annona squamosa refreshment and fruit cracking restraint

The invention relates to a preharvest and postharvest compound treatment method for AP annona squamosa refreshment and fruit cracking restraint. The preharvest and postharvest compound treatment method comprises the steps of enabling complexing agent solution composed of water, calcium chloride and jasmonic acid to be spayed on fruits 1-2 weeks before picking; selecting and harvesting the fruits which are uniform in sizes, have no pest and disease damage and have a maturity of 80-90%; first soaking the harvested fruits in pollution-free preservative solution I composed of water, citric acid, oxalic acid and ascorbic acid for 20-30min, taking out the fruits, and draining moisture; soaking the fruits in preservative solution II onion extracting solution; finally enabling the processed fruits to be aired naturally in an air-conditioning room at 18-20 DEG C, and storing the fruits in a cold storage which is at 15 DEG C and has a relative humidity of 75%-85%; and after storage for 15 days, enabling the fruit cracking rate and the rotting rate of AP annona squamosa to be reduced to be within 15%. According to the preharvest and postharvest compound treatment method, the fruit cracking rate can be effectively reduced, the storage period of the fruits is prolonged, and the flavor and quality of the AP annona squamosa are not affected.
Owner:ZHANJIANG NORMAL UNIV

Regulation and control method for cadmium contaminated farmland soil to produce while repairing

ActiveCN109647877ADoes not affect normal plantingPromote repairContaminated soil reclamationCadmium CationBiology
The invention discloses a regulation and control method for cadmium contaminated farmland soil to produce while repairing. The method includes performing air-drying and sieving on cadmium contaminatedsoil, applying a regulator component A, B and C, applying urea, and performing uniform mixing; planting paddy rice, performing drying for 3 days except for the later period of a tillering stage, maintaining a water layer of 2-3 cm at other time, performing frying until 3 days before harvest, and harvesting the paddy rice; performing re-air drying and sieving on the soil, applying a regulator component D and E, applying the urea, and performing uniform mixing; planting sedum plumbizincicola, maintaining the moisture of the soil at 60%-70% of maximum field water holding capacity, and harvestingthe upper parts of the sedum plumbizincicola after 4-6 months of planting; and repeating the above steps for 2-5 times so that repairing can be completed. The dual-purpose of guaranteeing the safe production of the paddy rice and accelerating repairing process can be achieved. The method can simultaneously consider the standard achieved production of the paddy rice on the contaminated soil and the efficient repairing of the sedum plumbizincicola.
Owner:INST OF SOIL SCI CHINESE ACAD OF SCI

Method for selecting and cultivating hybridized rice infertility series resisting ear germination using molecule marker

The invention relates to a method to cultivate preharvest sprouting resistance hybrid rice sterile line by molecular marker-assisted selection. The steps of the invention are that: step A, hybridization, backcrossing and self crossing are performed by using a preharvest sprouting resistance variety as donor parent and the corresponding maintainer line of sterile line having high combining ability but with easy pre-harvest sprouting as recurrent parent; meanwhile the donor parent and the recurrent parent are planted at every season; when choosing among various segregating generations, two microsatellite labeled primers RM447 and RM3754 are used to introduce molecular marker-assisted selection; a plurality of key strains are acquired after two or three generations of backcrossing and five to seven generations of self crossing; step B, the acquired key strains of step A and the sterile line having high combining ability but with easy pre-harvest sprouting are backcrossed for four to seven generations in pairs; during the backcrossing process, the same method of molecular marker-assisted selection as step A is used in selection, then the preharvest sprouting resistance hybrid rice sterile line is cultivated. The invention has the advantages that preharvest sprouting resistance material can be fast and effectively selected; the breeding scale is reduced; the breeding cost is lowered; the preharvest sprouting resistance hybrid rice sterile line is fast selected and bred with high efficiency.
Owner:CROP INST SICHUAN PROVINCE ACAD OF AGRI SCI

Disease preventing and freshness retaining method of mango-fruit preharvest and postharvest combined processing

PendingCN110663760AReduce diseaseImprove the effect of disease prevention and preservationFruit and vegetables preservationHorticulture methodsMacadamiasModified atmosphere
The invention discloses a disease preventing and freshness retaining method of mango-fruit preharvest and postharvest combined processing. The method includes the steps: (1), within 1 month before mango-fruit harvesting, a mixed disease-resistant pesticide is uniformly sprayed to the surfaces of mango fruits; (2), the mango fruits obtained after preharvest processing are harvested and precooled; (3), the precooled mango fruits are placed into a plastic box, a citronella essential oil, a tea tree essential oil, a lemon essential oil and a macadamia ternifolia essential oil are added into a culture dish at the bottom of the box so that the volatile matter concentration of each essential oil can reach 250-500 [mu]l/L, sealing is conducted, and room-temperature fumigation is carried out for 8-16 hours; (4), fumigated mango fruits are taken out and then placed into a paper fruit box with a spontaneous modified atmosphere bag as a lining, and after a 1-MCP slow-release agent is added, an opening of the modified atmosphere bag is sealed; and (5), the mango fruits are stored in a room-temperature warehouse. After the mango fruits processed through the method are stored in the room-temperature warehouse for 8 days, diseases are significantly alleviated, the disease index of the mango fruits is 20.0-31.7, and prevention and treatment effects reach 54.7-71.4%.
Owner:ENVIRONMENT & PLANT PROTECTION INST CHINESE ACADEMY OF TROPICAL AGRI SCI +1

Hybrid rice preharvest sprouting inhibitor and preparation method thereof

The invention provides a hybrid rice preharvest sprouting inhibitor. The hybrid rice preharvest sprouting inhibitor is prepared from the following raw materials: vitamin, a plant extract, an osmotic regulator, a growth inhibitor, a surfactant and water, wherein phytic acid is used as the vitamin, coumarin is used as the plant extract, NaCl is used as the osmotic regulator, abscisic acid is used asa growth inhibitor, and polysorbate 20 is used as a surfactant. The preparation method of the hybrid rice preharvest sprouting inhibitor comprises the following steps: weighing all raw materials in proportions, adding the raw materials into the water in sequence, uniformly stirring and mixing, and regulating pH (Potential of Hydrogen). A formula of the hybrid rice preharvest sprouting inhibitor provided by the invention is low in cost, the preparation method is simple, the hybrid rice preharvest sprouting inhibitor is non-toxic and harmless, the ecological environment cannot be destroyed after long-term use, follow-up germination quality of the hybrid rice preharvest sprouting inhibitor cannot be influenced, the use is convenient and effective, the hybrid rice preharvest sprouting inhibitor can be sprayed in vaporfic way for once during a rice grain filling stage by using a sprayer, the absorption time is short, the using amount is extremely small, all raw materials in the formula are water-soluble substances, the liquid is odorless, the property cannot be changed under longer-term preservation, and the formula is suitable for wide hybrid rice seed production and producing areasfor use.
Owner:HUNAN AGRICULTURAL UNIV

Annual two-planting and four-harvesting planting method for red soil paddy field

The present invention discloses an annual two-planting and four-harvesting planting method for red soil paddy field. The method comprises the following steps of (1) sowing rape in late October, applying basic fertilizer in combination with sowing, applying additional fertilizer for the first time in late December or in early January of next year, picking rape bolts in late January of next year, instantly applying nitrogen fertilizer for the second time after rape bolt picking, and mechanically harvesting rape seeds in mid-May; (2) planting middle-season rice in a field by throwing in mid-May,applying the basic fertilizer in combination with mechanical land preparation of the field, broadcasting the additional fertilizer to the whole field for the first time in a tillering stage, continuing to broadcast the additional fertilizer for the second time in a heading stage, and finally broadcasting the additional fertilizer for the third time 5-7 days before harvesting; mechanically harvesting the middle-season rice in late August; and mechanically harvesting ratoon rice in later October. In an annual rice-rape rotation manner, planting is performed twice and harvesting is performed forfour times; and paddy-upland rotation is realized, and agricultural products are improved in type, quantity and quality, so that guarantee of grain and oil self-supply is improved and agricultural product supply is enriched and optimized.
Owner:JIANGXI INST OF REO SOIL

Cultivation method of wheat high-preharvest-sprouting-resistance material

The invention discloses a cultivation method of a wheat preharvest-sprouting-resistance material. The cultivation method comprises the steps of in the first ten-day period and the middle ten-day period of October, culturing wheat seeds for 15 days with a special culture solution prepared from wild oat DNA, and when two leaves and 3-5 roots grow on each seedling, transplanting the seedlings as 0-generation seedlings to a field; In June of the second year, completely harvesting 0-generation seeds, and dibbling all single seeds in early October to form the first generation; harvesting and bundling first-generation plants in the next year; putting the bundled first-generation plants into a dark room, spraying water to wet ears thoroughly, performing covering with a plastic film to preserve moisture, accelerating germination for 15 days, performing baking, performing drying in the sun, performing threshing, floating the seeds with water, eliminating the germinated seeds floating on the water, reserving the non-germinated seeds sinking to the water bottom, and performing quick drying in the sun for second-generation seeding; performing harvesting and threshing at the seventh generation, performing sowing no less than 10,000 plants in single hole and single grain in the field in the middle ten-day period of June, and performing simultaneous sowing contrast; always keeping soil moist after sowing; only reserving and numbering the seedlings which emerge later than the control seedlings, recording the seedling emergence date, transplanting the seedlings into nutrition pots when 3-4 leaves exist, in a semi-shade shed, spraying 0.5% paclobutrazol, performing root irrigation and performing oversummering; and performing transplanting in the first ten-day period of October, and performing pre-harvest-sprouting-resistance identification in the next year. High pre-harvest-sprouting-resistance materials can be selected.
Owner:邯郸市农业科学院

Method for repairing cadmium-polluted farmland while conducting production

InactiveCN111842478ASafe and high-quality productionNo loss of economic benefitsContaminated soil reclamationSoil-working methodsSedum alfrediiSoil science
The invention discloses a method for repairing cadmium-polluted farmland while conducting production, belonging to the technical field of environmental management of polluted soil. The method comprises the following steps: (1) intercropping sedum alfredii hance and Lingxiyicun broad beans on to-be-remediated soil; (2) spraying a cadmium activating agent to leaves of the broad beans and the sedum alfredii hance in the seedling stage and the flowering stage of the broad beans, and completely removing straws of the broad beans and the sedum alfredii hance after harvesting; (3) leveling the soil,applying a cadmium passivation conditioner, and uniformly mixing the cadmium passivation conditioner with plough layer soil; (4) after one week, transplanting rice Zhongzheyou No.8 , carrying out flooding treatment in the whole growth period, spraying a selenium-enhanced cadmium blocking and controlling agent on leaf surfaces in the tillering period and the booting period of the rice, draining water one week before harvesting, and completely removing straws after harvesting the rice; and (5) repeating the steps (1)-(4) until soil safety reaches the standard. According to the method, the sedumalfredii hance and the broad beans are intercropped and then are subjected to crop rotation with the rice, and various agricultural and strengthening measures are cooperatively conducted, so remediation of cadmium-polluted soil is completed while safe production of crops is guaranteed.
Owner:ZHEJIANG UNIV

Synchronous fertilization method under triple cropping production of red soil rice field

The invention belongs to the technical field of rice field fertilization, and discloses a synchronous fertilization method under triple cropping production of a red soil rice field. The method comprises the following steps that potato and rice varieties are selected; no-tillage furrow sowing straw in-situ covering or mechanical stubble cleaning, rotary tillage, ridging and sowing film covering after ratoon rice stubble is adopted, the fertilizing amount is reduced, and all straw is returned to the field after potatoes are harvested; seedling tray seedling raising throwing planting is adopted,the seedling throwing planting age does not exceed 25 days, the fertilizer application amount is reduced, and the mature machine harvests broken straw and returns the straw to the field completely; and germination accelerating fertilizer is applied 7-10 days before mechanical harvesting of middle-season rice, the fertilizing amount is reduced, and full-amount in-situ covering and returning or mechanical rotary tillage, turning and pressing returning of straw harvested by a maturation machine is achieved. By utilizing the synchronous fertilization method under triple cropping production of thered soil rice field, the grain yield is obviously increased, the soil fertility of the rice field is obviously improved, the land resource utilization rate is obviously increased, the number of agricultural products is increased, and the grain and oil self-sufficiency guarantee is improved.
Owner:JIANGXI INST OF REO SOIL
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