120results about How to "Ensuring food security" patented technology

A wheat heat resistance identification method is provided. The method includes identifying heat resistance in an intelligent greenhouse, identifying heat resistance in a greenhouse built in land for growing field crops, recording heat resistance identification indexes, calculating a thermal inductance index, determining variety heat resistance, determining a stable heat resistant variety, and other steps. Identification results of the method are accurate and reliable. According to the method, heat resistance identification in the intelligent greenhouse and heat resistance identification in the greenhouse built in land for growing field crops are combined, and interannual heat resistance identification results and heat resistance identification results of different ecoregions are compared and combined, and therefore the method is of great significance for heat resistance identification of wheat genetic resources and breeding parents, for screening of proper heat resistant wheat varieties suitable for plantation in Huanghuaihai zones and for grain safety in China. The identification indexes are easy to measure, and through mutual corroboration of indoor identification and land identification, heat resistance of a wheat variety can be truly reflected.

The invention discloses a soil conditioner for reducing bioavailability of cadmium in acid heavy cadmium polluted soil, which comprises red mud and zinc fertilizer at a mass ratio of (50-100):1. The invention also discloses a method for improving mild or moderate polluted soil, which comprises the following steps: selecting cadmium-containing acid slight-moderate polluted soil as improvement object, before ploughing and fertilizing, uniformly spreading soil conditioner on the surface of the moderately or heavily polluted soil while controlling the use amount of the soil conditioner at a levelat which 1,500-9,000 Kg red mud and 15-90 Kg zinc fertilizer are contained per hectare soil, ploughing to enable red mud and zinc fertilizer to be sufficiently mixed with the polluted soil, and balancing for 7-10 days. The soil conditioner and the soil improvement method provided by the invention have the advantages of low cost, quick action, high safety, is environment-friendly, and on the like,and can effectively reduce the bioavailability of cadmium in acid heavy metal polluted soil.

The invention discloses a method for planting corn, which comprises the following steps of sowing and seedling raising, transplanting, fertilizing, weeding, hilling, moisture management, pest control and timely harvesting. The method improves abilities of soil conservation, fertilizer conservation and water conservation of soil, and corn plants are good in light transmission and ventilation, deep in the root system, and strong in lodging-resistant performance; under the premise of ensuring national food security, applying quantity of chemical fertilizer is reduced, so that cost reduction and income increase are realized for farmers, energy conservation is realized for the country, the environment is protected, and agricultural sustainable development is promoted.

The invention provides a high-yield maize planting method. The high-yield maize planting method is characterized by including the steps of seed treatment, field planting, field management and water and fertilizer management, maize seeds of an excellent hybrid maize variety which is resistant to close planting, dwarf, resistant to falling, compact in plant type, green in straw, proper in mature period, free of cluster baldness and resistant to diseases and pests are selected and treated through a special organic seed coating agent for maize, wherein the organic seed coating agent is composed of actinomycin, bacillus subtilis, azospirillum brasilense, fulvic acid, spice powder, heteroauxin, microelements, a sodium alpha-naphthaleneacitic acid growth regulator, an EDTA-2Na chelating agent, humic acid and turf.

The invention discloses a cultivation method for increasing the yield of sweet sorghum in high saline-alkali soil. The cultivation method comprises the following steps: in the mid month of March, performing broad irrigation on the saline-alkali soil once, wherein the irrigation amount of each mu of soil is 60-100m<3>; airing for 1-1.5 months till the soil surface is dried and people can stand on the soil; applying 1000-1500kg of miscellaneous manure or 50-55kg of a composite fertilizer to each mu of the soil; performing rotary tillage once to twice so as to mix up the soil and the fertilizer; pressing by using a rake to preserve soil moisture, and flattening the land; treating seeds of sweet sorghum by using a seed coating before being seeded, wherein the seed coating is prepared from actinomycin, bacillus subtilis, azospirillum brasilense, fulvic acid, spicy powder, heteroauxin, microelements, a sodium alpha-naphthyl acetate growth regulator, an EDTA-2Na chelating agent, humic acid, turf, a bactericide and an insecticide; when mixing is implemented for seed dressing, blending the insecticide with the seeds firstly, stacking and tightly covering for 3-6 hours, further introducing the bactericide, and immediately seeding after the seed dressing is implemented.

The invention discloses a plant protection system and method for a multispectral fixed wing unmanned aerial vehicle matched with a plant protection unmanned aerial vehicle. The Plant protection systemand method for the multispectral fixed wing unmanned aerial vehicle matched with the plant protection unmanned aerial vehicle comprises a multispectral fixed wing unmanned aerial vehicle, a ground software analysis system and a plant protection unmanned aerial vehicle. The multispectral fixed wing unmanned aerial vehicle is provided with a multispectral imager on the fixed wing unmanned aerial vehicle. The fixed wing unmanned aerial vehicle is provided with a GPS locator. Four one-million-and-two-hundreds- thousand pixel narrow-band monochromatic sensors and a 16 million pixel RGB tricolor sensor are arranged on the multispectral imager. The four one-million-and-two-hundreds-thousand pixel narrow-band monochromatic sensors are a green light narrow-band monochromatic sensor, a red light narrow-band monochromatic sensor, a red edge light narrow-band monochromatic sensor, and a near-infrared narrow- band monochromatic sensor. A SD card slot facilitating to export data is formed in the multispectral imager. A plastic medicine box is carried on the plant protection unmanned aerial vehicle. The variations of land resources and crop groups are fully understood, the management measures and the amount of material inputs are accurately and accurately adjusted according to the specific conditions of each operation unit in a field Adapt to local conditions, so as to obtain the maximum economic benefit.

The invention discloses an adaptive water-saving irrigation method based on dynamic drought prediction. The adaptive water-saving irrigation method comprises the steps: building an irrigation region dynamic drought grade evaluation method through taking the soil moisture content as an index, building a soil moisture content real-time prediction model based on water balance, and judging the droughtgrade in a future prediction period based on short-term weather prediction; further determining a crop irrigation threshold value according to the pre-judged drought level; and constructing a crop real-time irrigation forecasting model, and forecasting the irrigation amount day by day in the forecasting period. Based on a crop water deficit compensation effect theory, the adaptive water-saving irrigation method innovatively provides a crop adaptive irrigation threshold value by fully considering the drought condition in the future time period, improves the defect that a single irrigation threshold value is taken in the crop growth period, and establishes the organic relation between crop irrigation and drought, so that the field water utilization efficiency is effectively improved, and the drought risk of crops is reduced, and the adaptive water-saving irrigation method has important significance in guaranteeing the national grain safety and developing efficient water-saving agriculture.

The invention relates to a breeding method of high-ripening-rate paddy rice and belongs to the technical field of plant breeding. According to the breeding method, a parent is selected to be subjected to single or multiple cross and different ecological shuttle breeding, so that the deficiencies of low ripening rate and instability of a variety in existing production are overcome, a novel variety of paddy rice which has the characteristics of high quality, high yield and multiple resistance and is resistant to high temperature and low temperature is bred, and current agricultural production requirements are well met.

The invention discloses application of an ethylene responsive factor gene OsERF3 in regulating and controlling the development of rice roots. By using a yeast two-hybrid method, an ethylene responsive factor OsERF3 interacted with a published OsWOX11 protein is obtained by screening. By using an overexpression and small artificial interference RNA method, transformed rice corresponding to a gene is obtained, and a situation that the length of a main root and the number of crown roots of a plant subjected to gene overexpression are obviously increased in comparison with those of wild compared plants, and the length increasing of the main root is caused by the length increasing of cells in a maturation zone of a root tip, the length of the main root and the number of crown roots of a plant subjected to small artificial interference RNA transgenosis are obviously reduced in comparison with those of wild compared plants, and the length reducing of the main root is caused by the length reducing of cells in a meristematic zone and a maturation zone. Results show that the gene has a function of promoting the development of rice roots. A result of fusing the promoter of the gene with a report gene beta-glucuronidase shows that the gene is expressed in a meristematic zone of a root tip.

A high-yield maize culture method includes the steps of seed treatment, field planting, field management and water and fertilizer management. The method is characterized in that in the seed treatment step, maize seeds are treated through a special organic seed coating agent for maize, the seed coating agent is composed of actinomycin, bacillus mucilaginous, azospirillum brasilense, kieselguhr, spice powder, heteroauxin, potassium sulfate, magnesium sulfate, zinc sulfate, a sodium alpha-naphthaleneacitic acid growth regulator, an EDTA-2Na chelating agent, humic acid and turf.

A high-yield sorghum close planting cultivation method includes the steps of seed treatment, field planting, field management, weeding and water and fertilizer management, wherein an excellent hybrid sorghum variety which is resistant to close planting, dwarf, compact in plant type, green in straw, proper in mature period, free of cluster baldness and resistant to falling, diseases and pests is selected, trenches are formed for planting, the width of each trench ranges from 120 cm to 140 cm, the height of each trench is about 20 cm, seeds are planted in wide lines and narrow lines alternately, the line distance between the wide lines ranges from 100 cm to 150 cm, the line distance between the narrow lines ranges from 40 cm to 50 cm, the hole distance ranges from 35 cm to 40 cm, each hole is provided with three seeds, the treated seeds are sown in the trenches in the mode that each point is provided with two seeds, the seeds are covered with soil of one cun when sown, the soil is compacted with feet, and the number of seedlings reserved in each mu ranges from 5700 to 6700.

The invention discloses a method and system of rice-oenanthe javanica-cherax quadricarinatus integrated planting and breeding. The method includes digging an annular trench in a dam between rice fields, wherein floating beds, microporous oxygenation devices and a temporary rearing tank separated by a net are arranged in the annular trench and the dam is provided with an anti-escape device; planting rice in the rice fields and performing rice planting management; cultivating oenanthe javanica in the floating beds, and performing oenanthe javanica cultivating management; and breeding cherax quadricarinatus in the annular trench, and performing cherax quadricarinatus breeding management. As the cherax quadricarinatus is bred in the annular trench of the rice field and the oenanthe javanica iscultivated on the water surface of the annular trench through the floating beds, the land utilization rate can be increased; a symbiotic system of rice, aquatic vegetables and shrimps can be established; and through mutualistic symbiosis, rice fertilizer input can be reduced, pesticides are not needed, so that high-quality and ecological rice can be produced, therefore, food safety can be guaranteed, and agricultural efficiency, farmer income increasing and rural beautification can be realized.

The invention discloses a soil improvement method under a crop rotation system of wheat-corn in a tide soil region of North China. The method aims at solving the technical problems of shallow soil tillage layer and low soil water and fertilizer conservation capacity. The method comprises the following steps: in a wheat planting season, corn stalks of the last season are crushed and the whole amount of straws is returned to the field combined with soil rotating tillage. The depth of the rotating tillage is controlled to 15-18 centimeters, and basal fertilizer especially for the wheat is appliedwhile the wheat is sowed. Urea is applied to wheat during green-back period, and watering is carried out in time after the application. In a corn planting season, the wheat stalks of the last seasonare crushed and returned to the field in full amount in combination with the deep loosening of soil spacing. The distances between deep loosening ditches are determined according to the distances between the sowing rows of the corn. Fertilizer especially for the corn is applied while the corn is sowed. The corn is sowed between two adjacent deep lessening ditches or tillage-free areas in the ditches. The method can improve the structure of soil arable layers, promote the expansion of the arable layers, improve the production performance of the soil, ensure the uniform distribution of nutrientsbetween arable layers, promote the growth of crops, and improve the unit yield.

A cultivation method improving sorghum yield comprises the steps of seed treatment, field planting, field management and water and fertilizer management. The method is characterized in that in seed treatment, organic seed clothing special for sorghum is conducted on sorghum seeds, wherein a seed coating comprises actinomycin, bacillus mucilaginosus, azospirillum brasilense, infusorial earth, carry powder, heteroauxin, potassium sulphate, magnesium sulfate, zinc sulfate, alpha-pimacol growth regulator, EDTA-2Na chelating agent, humic acid and turf.

The invention discloses an intelligent bulk grain transport vehicle system with a function of bulk grain online management, and the system comprises a grain condition detection subsystem, an intelligent environmental control module, environmental control equipment, an intelligent terminal, and a remote management platform. The grain condition detection subsystem detects grain condition data in real time, and transmits the grain condition data to the intelligent environmental control module through the intelligent terminal. The intelligent environmental control module carries out reasoning through combining an expert system according to the grain condition data, and obtains an environmental control strategy. The intelligent terminal automatically controls the environmental control equipment according to the current environmental control strategy, and enables the environmental control equipment to adjust the grain storage environment in a carriage to the optimal state. The intelligent terminal enables the data to be transmitted to the remote management platform, and achieves the remote supervision of bulk grain transport vehicles. The system can effectively supervise the condition change of grain in a long-distance transport process, automatically controls the grain condition, protects grain from mildewing in the long-distance transport process, carries out the whole-course tracking of grain logistics, and achieves the intelligent networking management in the whole process of grain logistics.