48results about How to "Improve the rice polishing rate" patented technology

The invention relates to a breeding method of a high-quality disease-resistant high-temperature-resistant rice two-line sterile line, and belongs to the technical field of crop genetic breeding. The method is involved in rice germplasm breeding with long grain polymerization, high head rice rate and excellent economical characters such as high seed production temperature resistance and disease resistance, and the rice two-line sterile line with long grains, high head rice rate, high seed production temperature resistance, good out-crossing feature, stable fertility, good disease resistance and excellent comprehensive characters are bred. Great assembling is carried out by utilizing the sterile line, and a novel two-line hybrid rice assembly which is high in quality, disease-resistant and beneficial for seed production is screened out hopefully.

The invention relates to a breeding method for three-line sterile rice with high head rice rate and excellently-slender rice grains and belongs to the technical field of genetic breeding of crops. The method relates to the breeding of high-quality cytoplasmic male sterile rice which is moderate in growth period, high in head rice rate and excellently-slender in rice grains after being cooked and has long grains. By matching the three-line sterile rice with a great number of restoring lines, a novel combination of high-quality three-line hybrid rice which has long rice grains and is high in head rice rate and excellently-slender in rice grains after being cooked is expected to be screened.

The invention discloses a high-temperature resistant rice plant growth regulator and a using method and application thereof, belonging to the field of promoting plant growth. The effective componentsof the regulator comprise abscisic acid and sucrose, and when in use, the concentration of the abscisic acid is 1-100 mu mol/L, and the sucrose accounts for 0.1-2.5% of the total mass of the regulator. According to the invention, based on the influence of the interaction of natural plant hormone abscisic acid and natural carbohydrate sucrose on the grain growth of rice after flowering, the optimalapplication concentration is screened, so that the high-temperature damage to the rice is remarkably reduced, the rice yield is remarkably increased, and the rice quality is remarkably improved.

The invention belongs to the field of rice planting methods, and particularly provides a method for planting selenium-rich rice by plant-derived humic acid organic fertilizers. The method includes thesteps: (1) rice seedling bed selection and arrangement; (2) seed disinfection and germination treatment; (3) sowing; (4) rice seedling management; (5) field selection, land preparation and application of the plant-derived humic acid organic fertilizers serving as base fertilizers prepared by mixing, crushing and fermenting 40-50% of sugarcane filter mud, 10-20% of rice husks, 10-20% of corncobs,20-30% of livestock excrement and urine, 5-10% of humic acid and 5-10% of microbial agents; (6) rice transplanting; (7) field water and fertilizer management; (8) disease pest and weed comprehensive control; (9) harvesting. Organic selenium in soil is activated by the organic fertilizers comprising organic materials such as the humic acid and agricultural by-products, selenium is enriched by a physiological mechanism of rice, addition of exogenous selenium is omitted, the applying quantity of chemical fertilizers is decreased, pollution caused by pesticide residues is reduced, the yield and the quality of the rice can be improved, and sustainable development of agricultural production is facilitated.

The invention discloses a production process high in embryo reserving rate and used for milled rice with embryos. The production process includes the following sequential steps of winnowing, clearing,magnetic separation, husking, paddy separation, rice milling, white rice grading, polishing, color separation and packaging. According to the production process, due to the fact that the flow of unhulled rice entering a rice husking machine for milled rice with embryos, the rotating speed of the rice husking machine, and the rotating speed of a polishing rice brushing machine are controlled, thequality of rice grains is improved, the content of protein, vitamin, mineral substances and the like is increased by 60%-70% on an original cardinal number, the embryo reserving rate reaches 90% or above, dietary fibers are added, if people usually eat the milled rice, processed through the method, with the embryos, the blood viscosity of a human body can be better reduced, thrombogenesis is reduced, the metabolism of sugar in the human body is promoted, gastrointestinal peristalsis is increased, human body aging is reduced, human body microcirculation is improved, and muscle body fat is adjusted.

The invention relates to a clean-production fertilization method of controlled-release nitrogen fertilizer for paddy-rice seedling raising, is mainly applied to the synchronous fertilization during the paddy-rice seedling raising, and belongs to the technical fields of the reasonable amount-reduced application of novel fertilizer and agricultural clean production. The clean-production fertilization method is characterized by comprising the following steps of (1), taking a seedling raising tray for later use, taking the controlled-release nitrogen fertilizer for later use, and taking paddy-rice seedling raising nutrient soil for later use; (2), according to the paddy-rice seedling transplantation row spacing of 30cm is multiplied by 12cm and the seedling transplantation area, which is 36m<2> to 42m<2>, of the seedling for each tray, controlling to use 110g to 120g of seed for each tray and using 1.05kg to 1.1kg of the controlled-release nitrogen fertilizer for each tray; (3), taking and adding 2L of the paddy-rice seedling raising nutrient soil into the seedling raising tray, flattening, and drenching by using water; weighing, taking and uniformly sprinkling the controlled-release nitrogen fertilizer on the paddy-rice seedling raising nutrient soil. As the controlled-release nitrogen fertilizer has the characteristic of being long in release period and is also concentrated near a root system of paddy rice, in comparison with a conventional fertilization method, the use level of nitrogen fertilizer in the clean-production fertilization method can be decreased by 30 to 40 percent.

The invention discloses application of OsNRT2.3b to increase of yield and improvement of quality of oryza sativa. Under different fertilizer treatment conditions, effective tillering, weight per ear,yield per plant, brown rice rate and head rice yield of a total OsNRT2.3b overexpression material are higher than those of Nipponbare wild oryza sativa; and moisture content and length-width ratio arehigher than those of the Nipponbare wild oryza sativa, and chalky grain percentage and chalkiness degree are both lower than those of the Nipponbare wild oryza sativa.

The present invention discloses a processing method of rice. The processing method comprises the following steps: after un-husked rice is cleaned; the cleaned un-husked rice is subjected to husking; after husked rice separation, a primary microwave treatment is conducted; rice milling, color selecting, polishing and classifying are conducted to obtain a rice primary product; a sophora flower bud extract, a liquorice extract, a water chestnut shell extract, a fresh ginger extract and a honeysuckle extract are added to a sodium alginate aqueous solution to obtain a material A; glacial acetic acid is added to water and stirred evenly; calcium chloride is added to be dissolved; chitosan is added to be stirred evenly; the material A is drop-wise added; the materials are stirred; glutaraldehydeis added to obtain microcapsules; cassia bark essential oil, lemon essential oil, cubeb litsea tree fruit oil, garlic essential oil, eucalyptus globules essential oil, litsea cubeba essential oil andrapeseed polypeptides are added to anhydrous ethanol to obtain a material B; beta-cyclodextrin is added to water for a primary ultrasonic treatment; the material B is added for a secondary ultrasonictreatment; the material B is mixed with bamboo charcoal and the microcapsules; the mixture is sealedly packaged to obtain a preservative bag; the rice primary product is loaded into a polyethylene bagand put in the preservative bag; and electron beam irradiation and secondary microwave treatment are conducted.

The invention provides a hulled rice conditioning method under a vacuum state. A hulled rice vacuum-conditioning technology is characterized in that hulled rice is subjected to comprehensive processing of dampening and infiltrating by hydrothermal functions and certain infiltrating time. On the basis that an original rice milling technology and equipment is not changed, a hulled rice vacuum-conditioning working procedure is added in the original technology before clean hulled rice subjected to grain and hulled rice separation enters a first rice husking machine between working procedures of hulling and rice husking for hulled rice conditioning. The hulled rice (of which the moisture content is 12.5%) is taken as a raw material, the hulled rice is conditioned in vacuum environment to research an influence rule to a head rice rate by vacuum conditioning time, a vacuum degree and humidification capacity in different vacuum conditioning control parameters, and test conditions are further optimized by response surface analysis on the basis of a single factor test. A result shows that optimal vacuum conditioning parameters are as follows: the vacuum conditioning time is 30min, the vacuum degree is 40kPa, the humidification capacity is 1.6%, and at the time, the head rice rate is about 72.54%.

The invention discloses a breeding method of a special japonica rice restorer for beer, and belongs to the technical field of special rice breeding. According to the method, a japonica rice strain which is high in head rice rate, short, round and high in yield, a japonica rice strain low in gelatinization temperature, an indica rice strain with which is high in restoring capacity, good in matchingperformance, loose in rice starch distribution and high in amylase content, and a high-yield, disease-resistant and cold-resistant japonica rice strain serve as parents, and through scientific hybridization matching and target trait screening, the high-yield, cold-resistant, disease-resistant, short rounded grain special beer japonica rice restorer with the high head rice rate, the low gelatinization temperature, the loose starch distribution, the high rice amylase content and the good matching performance is bred. The restorer or hybrid rice matched with the restorer can be used for beer brewing, and the economic income can be increased by 500 yuan or above per mu for farmers in the planting process. The method is scientific, efficient and easy to operate, and plays a certain role in breeding of special rice varieties.

The application of the invention discloses an airing method for increasing head rice yield of rice. The airing method comprises the following steps of selecting cement ground which is thoroughly cleaned, and spreading a sorghum mat on the clean cement ground as the airing ground. The airing method further comprises an airing manner that a black sunshade cloth is used for shielding aired rice outdoors on daytime, before sunset in the afternoon, the aired rice is loaded into woven bags, and the woven bags are taken indoors. The airing method further comprises the step of uniformly spreading therice on the sorghum mat from 9:30am every day, and the sunshade cloth is used for shielding the aired rice; and the airing method further comprises the step of turning over the aired rice once at 11am. and turning over the aired rice once at 14pm. every day. According to the airing method disclosed by the invention, the rice is moved indoors at night, so that the temperature difference between theairing temperature on the daytime and the temperature at night is reduced, the crack rate is reduced, and the head rice yield is increased; and the situation that sun shielding airing treatment is related with the head rice yield of the rice is guaranteed, and the smaller the change of airing temperature is, the higher the head rice yield of the rice is.

The invention provides a wheat-rape interplanting rice planting method without a symbiotic period. According to the planting method, through leaving stubble and returning straw to the field, the environmental pollution problem caused by straw burning is solved, and a fertilizer can be saved; a destructive herbicide is sprayed by an unmanned aerial vehicle to directly act on weeds, and thereby theproblem that the herbicide cannot penetrate straw to directly act on weeds is solved; fertilization is performed at the tillering stage and jointing stage, and the fertilization frequency is reduced while the normal growth of rice is met; and a surplus phosphate fertilizer which is not dissolved in water yet in the previous crop wheat-rape field is made full use, the phosphate fertilizer is further dissolved in water in the rice field to provide nutrition for the rice, no phosphate fertilizer is applied during the fertilization process, the abuse of phosphate fertilizers, and the caused phosphorus pollution are effectively prevented, and the labor cost and production cost are reduced by reducing the fertilization frequency and the fertilization amount.

Spirulina qi-regulating blood-nourishing rice is made of, by weight parts, 30-45 parts of spirulina phycocyanin liquid, 20-28 parts of astragalus, 23-26 parts of atractylodes lancea, 18-22 parts of blumea, 13-19 parts of basella alba, 12-17 parts of fimbristylis miliacea, 10-15 parts of carthamus tinctorius, 8-13 parts of platycarya strobilacea sieb, 5-9 parts of white hyacinth bean, 4-8 parts of anoectochilus formosanus, 3-6 parts of pen shell ligament, 2-5 parts of daylily root and 700-900 parts of rice. A method for preparing the spirulina qi-regulating blood-nourishing rice mainly comprises a step (1) of preparing rice; a step (2) of preparing spirulina phycocyanin liquid; a step (3) of preparing Chinese medicine liquid; a step (4) of mixing; and a step (5) of drying and sterilization. According to the method, phycocyanin in fresh spirulina is fully extracted, and phycocyanin and the Chinese medicine liquid are evenly mixed and then sprayed on the surface of the rice, so that the rice has rich phycocyanin nutrient and further has pharmacology effects of the selected traditional Chinese medicines in the raw materials and has effects of regulating qi and nourishing blood.

The invention relates to a method for improving the head rice yield of high-quality late indica rice by using a radio frequency heating technology. The method comprises the following steps: (1) high-frequency radio-frequency heating, tempering, low-frequency radio-frequency heating, tempering, and natural cooling. The method of the invention dries high-moisture high-quality late indica rice into arelatively-high-moisture high-quality late indica rice with a moisture content of 16.0-18.0% by the high-frequency radio-frequency heating and the tempering, and then dries relatively-high-moisture high-quality late indica rice into a high-quality late indica rice product with a moisture content of 13.0-13.5% by the low-frequency radio-frequency heating and the tempering. Compared with traditional drying methods, the method of the invention has simple operation and low energy consumption, the head rice yield of the high-quality late indica rice product is as high as 57.0-62.1%, the taste quality is 90-93, and the product is in line with the national primary quality standard of high-quality rice.

The invention relates to the technical field of agricultural cultivation, in particular to an early and medium maturing rice planting method. Rice is generally planted in southern China, and rice planted in northern China is poor in disease resistance and low in head rice rate. The early and medium maturing rice planting method includes: 1) rice breeding, to be specific, planting a plurality of individual plants 'Qiuyou 88' in a cultivation rice field, and selecting a prominent strain for generation-adding breeding; 2) planting the bred rice; 3) fertilizing in a whole growth period; 4) retaining water in a tillering stage, retaining water from ear development to an earing stage, controlling water from a tillering termination stage to an ear differentiation starting stage, and performing dry and wet combined water control in a grain-filling stage; 5) spraying isoprothiolane in the middle of July, and spraying isoprothiolane after earing. High disease resistance and high rice rate are realized.