11 results about "Overwintering" patented technology

The invention discloses a GLUR6 gene related to low-temperature tolerance of pomacea canaliculata, an encoded protein and application of the GLUR6 gene, and belongs to the technical field of biology. The nucleotide sequence of the GLUR6 gene is as shown in SEQ ID NO: 1; the GLUR6 gene can be used as a target for pesticide screening and biological control of ampullaria gigas. The invention further provides dsRNA (double-stranded ribonucleic acid) of the GLUR6 gene. The green and environment-friendly biopesticide developed according to the dsRNA sequence can reduce the survival rate of ampullaria gigas in a low-temperature environment and the hatching rate of ampullaria gigas eggs. The method is rapid, effective and high in repeatability, and is an important supplement to the GLUR6 gene family. The low-temperature tolerance of the ampullaria gigas is reduced by blocking the expression of the GLUR6 gene in the ampullaria gigas, so that the purposes of controlling overwintering of the ampullaria gigas in soil in winter, reducing propagation of the ampullaria gigas and continuing to spread to the north are achieved. The method disclosed by the invention has important significance in research and determination of biology, ecology and novel insecticides of the ampullaria gigas and mechanism research of the ampullaria gigas on low-temperature tolerance.

The utility model discloses a tilapia mossambica hotbed type overwintering device, which relates to the technical field of aquaculture devices and comprises a warmer and a hotbed. The heater is used for providing hot water into the hotbed; the hotbed is arranged at the bottom of the overwintering pond. The tilapia mossambica hotbed type overwintering device is easy to manufacture and convenient to operate, hot water is provided for the hotbed through the heater, only the water temperature in the hotbed is increased, tilapia mossambica overwinter on the hotbed, hot water in the hotbed does not exchange with pond water in the overwintering pond, and energy is saved by more than 40%.

The invention discloses an alpine region afforestation method, and belongs to the technical field of afforestation, the method comprises the steps of soil pretreatment, nursery stock transplantation, stabilizer application, later-stage management and protection and the like, indigenous tree species nursery stocks are selected in spring for transplantation planting, and then a stabilizer A and a stabilizer B are prepared for application; the stabilizer A continuously reacts to release heat so as to increase the temperature of rhizosphere soil, the stabilizer B inhibits the released heat from dissipating outwards for heat preservation, and the rhizosphere soil is heated and preserved through the combined action of the stabilizer A and the stabilizer B, so that safe overwintering of nursery stocks is guaranteed, and the final afforestation survival rate is increased; the method disclosed by the invention has important significance in promoting the restoration of the ecological environment of the alpine region.

The application provides a method for predicting overwintering rate and cold resistance of Brassica napus, and belongs to the technical field of rape cultivation. The method comprises the following steps: sowing seeds of Brassica napus to be evaluated in a field; in early December, after the minimum temperature in the field is lower than-4 DEG C and lasts for 5-10 days, the key indicators of Brassica napus are determined; the determined key indicators are substituted into a regression equation of a linear regression model to calculate the predicted overwintering rate of Brassica napus; and the cold resistance of Brassica napus is identified according to the obtained predicted overwintering rate. Compared with the traditional natural overwintering identification, the application can obtain the predicted overwintering rate by only determining 7 key indicators once before winter, and complete the cold resistance grading evaluation, so that the identification period is shortened.

The invention discloses a northern cabbage type winter rape overwintering cultivation method which comprises the following steps: A, ploughing soil, removing stubbles in the soil, and then fertilizing before sowing; b, sowing is conducted from the last ten days of September to the first ten days of October; a precision seeder with a furrow opener is adopted for seeding, the furrow opening depth ranges from 5 cm to 10 cm, the seeding depth ranges from 2 cm to 3 cm, the line spacing ranges from 25 cm to 40 cm, and the seeding quantity per mu ranges from 0.2 kg to 0.4 kg; c, within 3 days after sowing, pre-emergence herbicide is used for soil sealing treatment; d, a mechanical soil covering machine is adopted for soil covering operation before overwintering water is poured, and the soil covering thickness is 1-2 cm; e, overwintering water is irrigated before overwintering, the daily average temperature of watering is selected to be 3-5 DEG C, the wind power of sprinkling irrigation is selected to be smaller than 4 levels, and the irrigation amount per mu is 30-50 m < 3 >; f, performing field management after reviving until maturing and harvesting. The method can overcome the defects in the prior art and improve the overwintering rate of the brassica napus.

The present application relates to the field of agricultural technology, and discloses a drought-resistant and disaster-reducing interplanting method for winter rye with drought climate adaptability, which comprises the following steps: interplanting area selection treatment in a drought and semi-drought area is carried out, target interplanting area data is generated, previous crop type selection treatment is carried out based on the target interplanting area data, previous crop type data is generated, candidate crops are quantitatively evaluated by establishing a previous crop adaptability index formula, and screening standards are set based on climate and soil information of the target interplanting area, so that the scientificity of previous crop selection is ensured, and interplanting sowing is arranged based on actual harvest completion time of the previous crop and suitable sowing period of the winter rye, which can reduce the problem of compressed suitable sowing period of the winter rye due to late harvest of the previous crop, ensure the winter rye to form strong seedlings before winter, lay a foundation for safe overwintering and all-year interplanting, and improve the stability and reliability of the interplanting mode.

The invention relates to grass carp and black carp overwintering feed and a production method thereof, and belongs to the technical field of fish feed. According to the overwintering feed for the grass carps and the black carps, the food calling performance, the nutrition performance and the functionality of the overwintering feed are greatly improved through winter nutrition adaptation, health-care factor addition and a microbial fermentation technology, physical recovery and physique enhancement of the overwintering fishes are facilitated, and therefore the prevention effect on the overwintering syndromes is achieved; the problems that an existing overwintering feed cannot effectively provide nutrition and energy for overwintering fishes and is not easy to digest and absorb are solved, and the feed is particularly suitable for overwintering feeding of grass carps and black carps.

The invention provides a degradable liquid anti-freezing film and a grape cultivation method for safe overwintering without burying soil, and belongs to the technical field of degradable liquid mulching films. The degradable liquid anti-freezing film is prepared from substances such as humic acid and sodium lignin sulfonate; the cultivation method comprises the following steps: load capacity control: controlling the ear remaining amount of each plant through ear thinning; spraying a kaolin composite particle film on the grape plants; water and fertilizer management: ditching, applying organic fertilizer and irrigating after dormancy in winter; ecological soil management: sowing and managing pasture among rows, and covering crushed branches in the rows; delaying winter pruning before bleeding in spring; and spraying a degradable liquid anti-freezing film on the tree trunk and the field planting belt ground. Through comprehensive management measures, the cold resistance of grape plants is effectively improved, soil-burying-free safe overwintering is achieved, the production cost is reduced, and meanwhile ecological environmental protection is promoted.

This invention relates to the field of perennial rice variety breeding, and particularly to a method for identifying and breeding perennial rice varieties based on autumn sowing and seedling raising. The method provided by this invention solves the technical problems of difficulty and operational complexity in the breeding of perennial rice varieties in the prior art. After F2 generation seeds are sown, the seedlings grow in winter, and the seedbed is kept in an alternating wet and dry state using shallow irrigation and natural drying. The shallow irrigation water depth does not exceed 3 cm, and the soil is allowed to dry naturally until no cracks appear, and this cycle is repeated. Identification is performed using a low-temperature overwintering method. Seedlings without the perennial rice gene will freeze to death in the prolonged low-temperature environment, while seedlings with the perennial rice gene will continue to survive, ensuring that all surviving seedlings possess the perennial rice gene. This method has high identification accuracy and is easy to operate.

The invention discloses a soil-burying-free overwintering, cold-proof and draining-proof method for grapes, and belongs to the technical field of grape cultivation, and the method specifically comprises the following steps: in an overwintering period, performing water bag covering on an area near the rhizome part of a grape plant; the water bag is a flexible water bag; the time when the wintering period starts is the time when the soil is frozen or the air temperature drops to zero DEG C every year; the water bag is made of a black polyethylene material, the thickness of the water bag is 0.12-0.25 mm, the width of the water bag is 2m, and the length of the water bag is 8 + / -2m; partitions are arranged on the water bag every 30-40 cm in the length direction. On the basis of sufficient research on cold resistance of different organs of grapes and practical test of classified protection, the novel water bag covering cold-proof method is provided, grape root systems and branches can be effectively protected against freeze injury, water vapor in air is condensed when the temperature is reduced at night through heat storage of the water bags, and the cold resistance of the grapes is improved. The moisture of branches and root systems in the coverage area is kept to prevent the branches from sprouting.

The application discloses a gallnut dwarfing and dense planting and precise layering inoculation method, which comprises five steps of dwarfing seedling cultivation of rhus copallinum, dwarfing and dense planting, soilless cultivation of winter host moss and overwintering and nursing of aphid, precise layering inoculation of aphid, field management and harvesting. A high adaptability rhus copallinum source is screened, dwarfing and dense planting is realized through multi-effect azole regulation, the soilless moss bed substrate is optimized to cultivate moss, 11000-13000 aphids are inoculated per square meter and temperature and humidity are controlled to overwinter, in spring, precise inoculation is carried out according to the three-layer structure of the rhus copallinum crown layer, matching different specifications of moss blocks, inoculation densities and components, water and fertilizer management and green prevention and control are combined with the period of insect galls, and natural airing and harvesting are carried out. The application constructs a collaborative planting system, is simple and convenient to operate, low in cost, improves the survival rate and the aphid knotting rate of aphid, realizes waste recycling, is suitable for large-scale and intensive planting, and significantly improves the yield and quality of gallnut.