40results about How to "Prevent blight" patented technology

The invention discloses a carbon-based rice seedling raising substrate for rice. The carbon-based rice seedling raising substrate comprises biochar, a straw fermented product, yellow soil, vermiculite and an inorganic fertilizer, wherein a volume ratio of the biochar to the straw fermented product to the yellow soil to the vermiculite is (10-20): (15-30): (25-35): (15-25); the inorganic fertilizer comprises nitrogen, phosphorus pentoxide and potassium oxide; and per 10 m<3> of the carbon-based rice seedling raising substrate for the rice comprises 12 to 18 g of a nitrogen fertilizer, 4 to 7 g of a phosphorus fertilizer and 5 to 16 parts of a potassium fertilizer. The invention also discloses a preparation method of the carbon-based rice seedling raising substrate for the rice. According to the invention, by utilizing the biochar and the fermented product which are prepared from widely-available farmland organic wastes like rice straws, and inorganic substances like the yellow soil and the vermiculite, the carbon-based rice seedling raising substrate for the rice is prepared. The substrate provided by the invention has the characteristics of fertility holding, water holding and good air permeability, and can effectively prevent the occurrences of bakanae disease, sheath blight and the like in a seedling stage.

The invention discloses a melon disease prevention and growth promotion seedling cultivation matrix and a preparation method thereof. The melon disease prevention and growth promotion seedling cultivation matrix consists of a composite seedling cultivation matrix and a pesticide mixture, wherein the composite seedling cultivation matrix contains, by volume ratio, wormcast 2-3 parts, thoroughly decomposed mushroom residues 1-2 parts, chicken manure 0.5 part, vermiculite 0.5 part and 15% multi-effect triazole wettable powder 10 g-20 g / m<3>. The pesticide mixture contains, by weight of 1:1, 25% metalaxyl wettable powder and 50% thiram wettable powder. By means of the melon disease prevention and growth promotion seedling cultivation matrix prepared by the preparation method, seedling cultivation nutrient solutions are not needed to be supplemented, seedlings are order, healthy and strong and do not excessively grow, root systems are prosperous, and melon vegetable diseases at a seedling stage can be prevented.

The invention relates to the technical field of plant cultivation and discloses a koelreuteria bipinnata franchet cultivation method. The method includes the following steps that firstly, seed disinfection is conducted; secondly, land is selected, and plantation is conducted; thirdly, irrigation is conducted; fourthly, leaf fertilizer is sprayed; fifthly, trimming is conducted; sixthly, metilsulfate is sprayed; seventhly, carbendazim is sprayed; eighthly, outplanting is conducted. According to the koelreuteria bipinnata franchet cultivation method, before koelreuteria bipinnata franchet seeds are sown, the seeds are disinfected, nursery stock diseases are reduced, damping off of nursery stock is effectively prevented, base fertilizer is applied in the process of sowing, when buds of the koelreuteria bipinnata franchet are grown to be on the same plane, the leaf fertilizer is sprayed. According to the koelreuteria bipinnata franchet cultivation method, the formula of the base fertilizer and the leaf fertilizer is reasonable, the effect is quickly achieved, plants can directly absorb the fertilizer, and the nutritional requirement in the growing process of the koelreuteria bipinnata franchet is met. Due to the fact that the metilsulfate is sprayed, the koelreuteria bipinnata franchet can be effectively protected against damping off, and the carbendazim is sprayed so that the koelreuteria bipinnata franchet can be protected against the root rot. The appearance of the koelreuteria bipinnata franchet is attractive, and the survival rate is high.

The invention relates to a fertilizer for rice dry seedling and a preparation method thereof. The preparation method comprises the following steps: mixing ammonium sulfate, ferrous sulfate, phosphogypsum, potassium chloride and monoammonium phosphate, blending uniformly, pulverizing to obtain materials with a granularity less than 1 mm; granulating the materials with vapor in a drum granulator to achieve the granulation rate up to 70 to 90%; oven-drying the granulated materials into a drier with the furnace temperature of 500 to 550 DEG C, the head kiln temperature of 500 to 550 DEG C and the tail kiln temperature of 80 to 90 DEG C; cooling the dried materials in a cooler to reduce the temperature of the materials below 50 DEG C; sieving the cooled materials in a drum grading sieve to obtain materials with the granularity of 1 to 4.75 mm; and packaging in bags. The fertilizer contains nitrogen, phosphorus, potassium and trace elements, not only can prevent the occurrence of diseases such as large-area yellowing and death of seedlings, yellow mosaic, sheath blight and bakanae but also can promote the growth of the rice root system, improve the utilization rate of the fertilizer and ensure the yield and the income increase of high-quality rice. The preparation method has the advantages of simple process, convenient operation, reduced cost, labor saving and remarkable effect.

The invention provides a method for producing grain-oriented silicon steel with single cold rolling, comprising: 1) smelting, refining and continuous casting to obtain a casting blank; 2) hot rolling; 3) normalization, i.e. normalizing annealing and cooling; 4) cold-rolling, i.e. single cold rolling at a cold rolling reduction rate of 75-92%; 5) decarburizing annealing at 780-880° C. for 80-350 s in a protective atmosphere having a due point of 40-80° C., wherein the total oxygen [O] in the surface of the decarburized sheet: 171 / t≦[O]≦313 / t (t represents the actual thickness of the steel sheet in mm), the amount of absorbed nitrogen: 2-10 ppm; 6) high temperature annealing, wherein the dew point of the protective atmosphere: 0-50° C., the temperature holding time at the first stage: 6-30 h, the amount of absorbed nitrogen during high-temperature annealing: 10-40 ppm; 7) hot-leveling annealing. The invention may control the primary recrystallization microstructure of steel sheet effectively by controlling the normalization process of hot rolled sheet to form sufficient favorable (Al, Si)N inclusions from nitrogen absorbed by slab during decarburizing annealing and low-temperature holding of high-temperature annealing, facilitating the generation of stable, perfect secondary recrystallization microstructure of the final products. In addition, the invention avoids the impact of nitridation using ammonia on the underlying layer in prior art, and thus the formation of a good glass film underlying layer is favored.

The invention relates to the technical field of plant cultivating, and discloses a ligustrum lucidum cultivating method. The ligustrum lucidum cultivating method comprises the first step of seed disinfecting, the second step of land selecting and planting, the third step of irrigating, the fourth step of leaf fertilizer spraying, the fifth step of trimming, the sixth step of thiophanate methyl spraying, the seventh step of carbendazim spraying and the eighth step of outplanting. Due to the fact that ligustrum lucidum seeds are disinfected before being sown, seedling diseases are reduced, and seedling damping off is effectively prevented; the base fertilizer is applied during sowing, the leaf fertilizer is applied when buds of the ligustrum lucidum grow out, the formulas of the base fertilizer and the leaf fertilizer are reasonable, the effects of the base fertilizer and the leaf fertilizer are achieved quickly, the ligustrum lucidum can directly absorb the nutrients in the fertilizer, and the demands for nutrients of the ligustrum lucidum can be met in the growing process; thiophanate methyl can effectively prevent the ligustrum lucidum from being suffered from the damping off, and the carbendazim can effectively prevent the ligustrum lucidum from being suffered from the root rot; the ligustrum lucidum cultivated with the method is attractive in appearance and high in survival rate.

The invention discloses a forage type horseradish tree planting method, which realizes large-scale production of horseradish tree leaf feed raw materials suitable for mechanized harvesting through garden plot planning, seedling raising and transplanting, water and fertilizer management, pest control, harvesting, post-harvest management and other processes.

The invention provides a seedling raising substrate for organic rice prepared by using furfural residue. The seedling raising substrate is prepared from the following ingredients: a fermentation substrate, wood vinegar, phosphorite powder and potassium ore powder, wherein the fermentation substrate is a product which is obtained through mixing the furfural residue, straw charcoal, chicken manure and water and carrying out piling and fermenting; the volume ratio of the furfural residue to the straw charcoal to the chicken manure is (3 to 8): (1 to 2): 1; and the ratio of the volume of the fermentation substrate to the mass of the wood vinegar to the mass of the phosphorite powder to the mass of the potassium ore powder is 1m<3>: (5 to 20)Kg: (0.5 to 1.5)Kg: (1 to 2)Kg. Through carrying out rice seedling raising by using the seedling raising substrate prepared by the method, the prepared rice seedlings are great in plant height, high in dry weight, large in quantity of adventitious roots and high in plumpness and meanwhile are free of disease incidence.

The invention relates to a fertilizer for rice dry seedling and a preparation method thereof. The preparation method comprises the following steps: mixing ammonium sulfate, ferrous sulfate, phosphogypsum, potassium chloride and monoammonium phosphate, blending uniformly, pulverizing to obtain materials with a granularity less than 1 mm; granulating the materials with vapor in a drum granulator toachieve the granulation rate up to 70 to 90%; oven-drying the granulated materials into a drier with the furnace temperature of 500 to 550 DEG C, the head kiln temperature of 500 to 550 DEG C and thetail kiln temperature of 80 to 90 DEG C; cooling the dried materials in a cooler to reduce the temperature of the materials below 50 DEG C; sieving the cooled materials in a drum grading sieve to obtain materials with the granularity of 1 to 4.75 mm; and packaging in bags. The fertilizer contains nitrogen, phosphorus, potassium and trace elements, not only can prevent the occurrence of diseases such as large-area yellowing and death of seedlings, yellow mosaic, sheath blight and bakanae but also can promote the growth of the rice root system, improve the utilization rate of the fertilizer andensure the yield and the income increase of high-quality rice. The preparation method has the advantages of simple process, convenient operation, reduced cost, labor saving and remarkable effect.

The invention discloses a sarcandra glabra seedling stage disease and insect pest prevention method and relates to the technical field of disease and insect pest prevention. The method includes cultivating seedling in a shaded greenhouse, watering during the seedling stage when the surface soil is observed to be in dried and whitish states so as to allow the soil surround the seedling roots to be moist constantly and no water to accumulate on the surface of a seedbed; spraying drug in the initial stages of black leaf mold and anthracnose for eradication. Compared with the prior art, the sarcandra glabra seedling stage disease and insect pest prevention method has the advantages that soil moisture is proper, damping off and bakanae disease are prevented, and seedling disease resistant capability of the seedlings can be improved; disasters are found out in early stages and can be eradicated, and seedling rate and economic efficiency of seedlings can be improved.