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950 results about "Poaceae" patented technology

Poaceae (/poʊˈeɪsiaɪ/) or Gramineae is a large and nearly ubiquitous family of monocotyledonous flowering plants known as grasses, commonly referred to collectively as grass. Poaceae includes the cereal grasses, bamboos and the grasses of natural grassland and cultivated lawns and pasture.

Method for inter-planting forage grass in orchards at karst rock desertification region

The invention discloses a method for inter-planting forage grass in orchards at a karst rock desertification region, in particular a method for inter-planting leguminous forage grass and gramineous forage grass below fruit trees in the orchards, wherein the mixing weight ratio of the leguminous forage grass to the gramineous forage grass is (5-7):(3-5), and the seeding rate is 1.5-2.0 kg/mu. According to the method, the leguminous forage grass and the gramineous forage grass are selected and sowed in a mixed way according to the characteristics of high yield and low crude protein content of the gramineous forage grass and high crude protein content of the leguminous forage grass, so that the yield and the quality of the forage grass are improved, and the palatability of the forage grass and the absorption of livestock to the nutrients of the forage grass are enhanced; by performing mixed sowing on the leguminous forage grass and the gramineous forage grass according to a weight ratio of (5-7):(3-5) under fruit trees, the coverage ratio of land vegetation of the orchards is increased and water and soil loss is greatly reduced; and meanwhile, the soil fertility of the orchards can also be increased, the environment of the orchards is improved, the productivity of land is improved, and the aims of increasing the yield of fruit trees and the yield of the forage grass are fulfilled.
Owner:GUANGXI INST OF BOTANY THE CHINESE ACAD OF SCI

Method for extracting lignin from raw grass

The invention provides a method for extracting lignin from raw grass. The method comprises the following steps: 1. preparing steam exploded pulp powder: carrying out necessary truncating or slicing on the collected raw grass, then drying the raw grass, putting the raw grass in a pot to be converted into pulp through steam explosion, and drying and grinding the pulp to prepare the steam exploded pulp powder; 2. extracting coarse lignin: fully mixing the steam exploded pulp powder with an organic solvent which can dissolve lignin in a weight ratio of 1:(10-40), carrying out pressure filtration on the mixture, and concentrating the filtrate, thus obtaining the coarse lignin; and 3. refining the lignin: dissolving the coarse lignin in acetic acid aqueous solution with the weight being 10-30 times that of the coarse lignin and the concentration being 80%, then dropwisely adding the mixture to water with the weight being 10-50 times that of the mixture, precipitating the lignin, centrifugally separating, drying, and then sealing and packaging. The prepared lignin has purity of 95-100% and can be widely applied to the production of lignin-based epoxy resins, lignin adhesives, lignin rubber reinforcing agents and the like. The lignin preparation method has the beneficial effects of energy saving, less procedures, low cost and high purity.
Owner:ZHEJIANG FORESTRY UNIVERSITY

No-tillage rotation method of flue-cured tobacco and grass

The invention discloses a method for no-tillage crop rotation of flue-cured tobaccos and pastures. The method uses excellent gramineous pasture pennisetum hydridum and flue-cured tobacco for no-tillage crop rotation and comprises the detailed steps of: ridging during the first year when planting flue-cured tobaccos, and leaving the tobacco sticks on the tobacco ground to protect the ridge body after harvesting the tobacco leaves; clearing up the tobacco sticks and weeds after spring comes in the second year, then planting the pennisetum hydridum of which the planting density is the same as the planting density of the flue-cured tobacco, and leaving the residues of the pennisetum hydridum in the ridge body after harvesting the pennisetum hydridum completely, and protecting the ridge body; using phytocide to control the growth of the weeds after spring comes and before the tobacco is planted in the third year, digging the ridge when planting tobaccos, fertilizing, and planting tobaccos; clearing up the ridge surface, removing the weeds, covering the ground by a ground membrane when the soil moisture content is enough so as to promote normal growth of the flue-cured tobacco, and repeatedly performing alternant planting of flue-cured tobacco -> pennisetum hydridum -> flue-cured tobacco in this way. The method has the advantages of: increasing the crop rotation efficiency of the flue-cured tobacco, increasing the quality of the tobacco leaves, saving the steps of turning over of the soil, ridging, topdressing, intertillage, weeding and the like, saving six workers every 667 square meters of flue-cured tobacco, reducing the production cost, and being simple to operate and easy to popularize.
Owner:GUIZHOU TOBACCO SCI INST

Herbicide composition for paddy fields

The invention relates to a herbicide composition for preventing and removing weeds in farmlands and an application, in particular to a herbicide used for preventing and removing gramineous weeds, broadleaf weeds and sedge weeds in paddy fields. The herbicide composition is a binary herbicide mixed agent taking penoxsulam and bensulfuron methyl as active components. The weight ratio of the penoxsulam to the bensulfuron methyl in the composition is 1.6:1-1:40, preferably 1.6:1-1:10. The compound herbicide can be prepared into water dispersed granules, a suspending agent, an oil suspending agentand wettable powder. The invention is used for preventing and removing the weeds in the paddy fields, has reasonable components and better preventing effect in comparison with the activity of the components when being applied independently, expands the preventing and removing spectra of the weeds, lowers the preventing and removing cost, delays the generation of the resistibility of the weeds, has good safety to crops and conforms to the safety requirement of pesticide preparations. The invention has the fresh-weight average preventing and treating effect of 87.35-98.01% to the gramineous weeds, the broadleaf weeds and the sedge weeds in the paddy fields after being applied for thirty days.
Owner:SHAANXI SUNGER ROAD BIO SCI
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