204results about How to "Improve nitrogen fixation" patented technology

The invention provides a sugarcane sustained-release granular medicinal fertilizer comprising the components of, by mass: 0.01-3% of a pesticide, 20-50% of fertilizer effective components, 0.01-2% of trace element fertilizer effective components, 0.001-0.1% of beneficial element fertilizer effective components, 0.1-5% of a fertilizer sustained-release agent, and balance of a filling agent. The fertilizer effective components comprise N, P2O5, and K2O. The trace element fertilizer effective component comprises boron, zinc, manganese, molybdenum, copper and iron. The beneficial element fertilizer effective components comprise silicon and selenium. The sugarcane special-purposed sustained-release granular medicinal fertilizer provided by the invention can provide nutrients for sugarcane, and can control pests effectively. With the medicinal fertilizer, application effects of pesticide and fertilizer are improved, labor intensity is saved, and plantation cost is reduced.

The present invention relates to a special-purpose fertilizer for soyabean. It is characterized by that it comprises nitrogen, phosphorus and potassium, also includes additive with slow-releasing action and special-purpose microfertilizer. The weight percentage of nitrogen, phosphorus and potassium is 0.4-1:0.1-0.3:0.2-0.4. Said invention is complete in nutrients and reasonable in formula, can fully meet nutrient requirement for soyabean growth and development process, also contains the nutrient components of nitrate nitrogen, sulfate radical, boron and molybdenum, so that it is favorable for soyabean nitrogen-fixing root nodule.

The invention provides soil activating powder; the components are as follows in parts by weight: 50 to 70 parts of organic fermentation product, 10 to 25 parts of sucrose, 15 to 35 parts of straw green powder, 5 to 10 parts of bacterial cellulose, 3 to 7 parts of Xanthan, 5 to 15 parts of humic acid, 0.05 to 0.2 part of pH buffer, and 0.1 to 0.5 part of soil disinfectant. The soil activating powder can comprehensively improve and control the physical structure, the fertility, the microbial activity, the water characteristics, the cohesion anti-erosion capability and the like of the soil, has the advantages of strong functions, low cost, simple use, applicability to the improvement of various poor degraded soil and the like, and is mainly used for the improvement of various poor soil.

The invention discloses a slow-release additive for a fertilizer of eucalyptus. The slow-release additive is prepared from the following raw materials in parts by weight: 20-25 parts of straw, 14-16 parts of zeolite powder, 1-2 parts of clay, 1-2 parts of guanylthiourea, 1-2 parts of glycine betaine, 1-4 parts of soluble chitosan, 1.4-2.8 parts of fulvic acid, 20-30 parts of pig manure, 4-8 parts of rape seed cake, 1-2 parts of maize meal, 1-2 parts of polyacrylamide, 0.5-1 part of rhizoma arisaematis, 1-2 parts of radix sophorae flavescentis, 1-2 parts of caulis perillae and 1-2 parts of castor root. According to the slow-release additive for the fertilizer of eucalyptus, provided by the invention, positive ions in cavities and channels have a higher selective ion-exchange property, heavy metal ions and cyanide harmful to animals can be removed, and beneficial metal ions are enabled to be released.

The invention mainly discloses a heavy metal passivating and nitrogen-preserving method in a livestock manure aerobic composting process. The method comprises the following steps: according to a certain proportion and sequence, mixing livestock manure, a heavy metal passivating material, a biochemistry inhibitor and a conditioner, and performing aerobic composting, wherein according to parts by weight, an adding proportion of the livestock manure, the heavy metal passivating material, the biochemistry inhibitor and the conditioner is 1:0.005-0.2:0.001-0.01:0.3-0.5, and the heavy metal passivating material comprises one or more of modified charcoal, modified ground phosphate rock, modified zeolite, modified sepiolite and lime; and ventilating and turning over in natural conditions, composting for 30-45 days. The method is capable of performing the aerobic composting by using livestock and poultry industry and agriculture organic wastes of the livestock manure, straw and the like as rawmaterials, providing technical guidance for reducing heavy metal bio-availability in the livestock manure and reducing nitrogen nutrient loss, acquiring a high-quality organic fertilizer, and providing a scheme for agricultural healthy sustainable development.

The invention discloses a high-yield cultivation method for alfalfa in a semi-arid region. Spring seed sowing and dressing, precision strip cropping, quantitative fertilization and total membrane coverage are integrated. The method comprises the specific steps that during seed sowing in spring, alfalfa seeds are soaked in a rhizobium solution for 15-30 min, then, ditching is performed immediately for seed sowing, and calcium superphosphate is used for a base fertilizer to be applied at a time; then, four rows of alfalfa seeds are sown in each strip, total ground coverage is performed through a plastic film with the width being 120 cm and the thickness being 0.08 mm, the sowing line spacing is 15 cm, the sowing depth is 1.5 cm, and the seeding rate is 25 kg/hm<2>; then, soil is used on the edge of a ground membrane for fixed pressing so as to prevent the membrane from being damaged by wind, holes are punched every other about 50 cm on the ground membrane when seedlings grow 2 cm above the ground so as to prevent the seedlings from being burnt; the covered ground membrane is removed when stubble plants grow to be 10 cm high. According to the method, water evaporation caused by wind erosion can be obviously lowered, low temperature is increased, and the emergence rate of alfalfa seedlings inside the first year and the late biological yield are increased.

The invention discloses an alkaline organic fertilizer for restoring soil polluted by heavy metals and a preparation method of the alkaline organic fertilizer, and relates to the technical field of agricultural fertilizers. The alkaline organic fertilizer is prepared from, by weight, 1-3 parts of urea, 1-3 parts of potassium sulphate, 2-6 parts of diammonium phosphate, 10-30 parts of tobacco straw, 30-40 parts of alkaline ash, 15-35 parts of livestock manure, 10-30 parts of bean stalks, 10-30 parts of purple soil, 1-3 parts of microelements, 0.5-1.5 parts of biological bacteria, 3-5 parts of lime nitrogen and 0.02-0.04 part of nitragin. The alkaline organic fertilizer has a good restoring effect on the soil polluted by the heavy metals, is suitable for being used in acidic soil, can be used for farmland soil heavy metal pollution restoration and ecological improvement in southern paddy fields in China, and can also be used for dry farmland soil heavy metal pollution restoration and ecological improvement in the south.

The invention discloses a pear tree fertilizer slow-release additive containing brassinolide. The pear tree fertilizer slow-release additive containing brassinolide comprises, by weight, 20-25 parts of rice straw, 4-6 parts of coal gangue powder, 0.2-0.4 part of brassinolide, 1-2 parts of guanylthiourea, 1-4 parts of glucose, 1-2 parts of polyethylene glycol, 1-2 parts of brown sugar, 1-2 parts of ardealite, 6-8 parts of weathered coal, 1-3 parts of polyacrylamide, 0.2-0.3 part of potassium nitrophenolate, 0.6-0.8 part of polypropylene glycol, 1-3 parts of agricultural rare earth nitrate, 1-2 parts of sodium dodecyl benzene sulfonate, 4-5 parts of alfalfa, 1-2 parts of flos chrysanthemi indici, 1-2 parts of plumeria rubra, 1-3 parts of stellera chamaejasme, 3-5 parts of corn gluten meal, 3-5 parts of cow dung and 0.1-0.3 part of HM decomposition maturing agent.

The invention discloses sulphur-based gamma-biological compound fertilizer and a preparation method thereof. The sulphur-based gamma-biological compound fertilizer comprises gamma-poly(glutamic acid), wheat straw extract, microbial agents and secondary elements, namely, nitrogen elements, phosphorus elements and potassium elements. The gamma-poly(glutamic acid) and the microbial agents are prepared through the fermentation process. The wheat straw extract is obtained by extracting and processing young wheat straw seedlings. The secondary elements are obtained through related compound powder. The sulphur-based gamma-biological compound fertilizer comprises 0.1-5.0 parts of gamma-poly(glutamic acid), 3-12 parts of wheat straw extract, 2-6 parts of microbial agents, 20-30 parts of urea, 55-85 parts of monoammonium phosphate and 30-50 parts of potassium sulfate, wherein microelements include calcium, magnesium, sulphur, manganese, zinc, boron and molybdenum. By means of the sulphur-based gamma-biological compound fertilizer, the nitrogen nutrition utilization rate can be increased, and by means of the supplementary effect of synergistic interaction of the gamma-poly(glutamic acid) and the wheat straw extract, the soil microenvironment is improved, the nutrient absorption is promoted, the crop yield is increased, and the disease-resistant, stress-resistant, anti-interference and successive crop prevention capacity of plants is improved.

The invention belongs to the technical field of vegetable crop rotation cultivation and specifically relates to a three-crop-in-one-year cultivation method for crop rotation of bitter gourd, cowpea and leaf mustard in the open field in south China. The three-crop-in-one-year cultivation method for crop rotation of bitter gourd, cowpea and leaf mustard in the open field in south China comprises thefollowing steps: (1) crop rotation period arrangement; (2) appropriate good variety selection; and (3) cultivation method. According to the cultivation method disclosed by the invention, two crops including the cowpea and the leaf mustard suitable for seasons are planted after the bitter gourd is harvested, and therefore, the total production value of the three vegetables per 667m<2> is 24500 yuan, the total input is 8300 yuan, and the annual net income is 16200 yuan. Compared with a traditional local two-crop-in-one-year cultivation mode for bitter gourd and rice, the three-crop-in-one-yearcultivation method has the advantages that the annual total revenue per 667m<2> is 9200 yuan, the production cost of two crops is about 4800 yuan, and the average annual net income is only 4400 yuan.The production value per 667m<2> can be increased by 15300 yuan, the net income is increased by 11800 yuan, and the economic benefit is remarkable.

The present invention discloses a carbon-based composite biological fertilizer. The carbon-based composite biological fertilizer is prepared from the following raw materials in parts by weight: 20-60parts of biochar, 10-30 parts of plant ash, 8-25 parts of medical stone powder, 3-15 parts of zeolite powder, 2-8 parts of potassium feldspar powder, 1-6 parts of ground phosphate rock, 15-45 parts ofhumic acid, 1-10 parts of potassium fulvate and 1-15 parts of photosynthetic nitrogen fixation composite bacteria. The carbon-based composite biological fertilizer gives full play to the respective advantages of photosynthetic nitrogen fixation composite bacteria, biochar, plant ash, medical stone powder, zeolite powder, potassium feldspar powder, ground phosphate rock, humic acid and potassium fulvic acid, not only realizes effective improvement and remediation of soil and improves the crop yield, but also is beneficial to promoting the development of green low-carbon agriculture. The invention also provides a preparation method of the carbon-based composite biological fertilizer, which is simple and convenient to operate and convenient for batch production. The invention also provides application of the carbon-based composite biological fertilizer, and the carbon-based composite biological fertilizer is compounded with one or more of decomposed manure, an organic fertilizer, slag, biomass pyrolysis residues or crop wastes according to different types of soil, so that the fertilizer efficiency is exerted.

The invention discloses a strong bacillus G25-1-2 and applications thereof. The bacillus has been preserved by China Center for Type Culture Collection in Wuhan University (short for CCTCC) on 4th, June, 2009, and the preservation number is CCTCC NO:M209122. The bacillus is a pure bacillus with high-efficiency nitrogen-fixing activity, and is separated and sieved from a seaweed ecological system. When the strong bacillus G25-1-2 is used for processing seaweed, compared with a test control group, the processed seaweed has higher plant height, stem diameter average value, carotene content, carotenoid content and soluble saccharide content, thereby the result shows that the bacillus has good growth promotion effect on the seaweed. The strong bacillus G25-1-2 can be used for seaweed nursing and restoration of the whole seaweed ecological system, and has good promotion functions on the nitrogen circulation of the coral reef-seaweed bed composite ecological system and the maintenance of high production level.

The invention discloses an amino acid organic fertilizer using hairs as raw materials and a preparation method of the amino acid organic fertilizer. The method comprises the following steps: hydrolyzing the hairs such as pig hairs, hairs and the like used as raw materials by adding acid to prepare an amino acid liquid; uniformly stirring microbial-organics, micro-elements, nitrogen-phosphorus-potassium total nutrients, secondary elements and the amino acid liquid; and drying and screening to prepare the amino acid organic fertilizer. The amino acid organic fertilizer comprises the following components in percentage by mass: 15-30 percent of microbial-organics, 15-30 percent of nitrogen-phosphorus-potassium total nutrients, 0.1-5 percent of microelements, 5-30 percent of secondary elements, 8-20 percent of amino acid liquid, and 5-20 percent of water contents. According to the amino acid organic fertilizer, a soil structure can be improved, the soil is activated, the cost is reduced, the environment pollution is reduced, the nutrition is complete and the utilization rate of the fertilizer is high.

The invention includes methods and compositions of genomic regions for screening and selecting plants and seeds from the genus Glycine associated with soybean plant maturity and growth habit. The invention also includes methods and compositions for screening plants and seeds from the genus Glycine with markers associated with genomic regions that are related to the plant maturity and plant growth habit of Glycine plants.

The present invention is in the field of plant breeding and disease resistance. More specifically, the invention includes a method for breeding soybean plants containing quantitative trait loci that are associated with resistance to Asian Soybean Rust (ASR), a fungal disease associated with Phakopsora spp. The invention further includes germplasm and the use of germplasm containing quantitative trait loci (QTL) conferring disease resistance for introgression into elite germplasm in a breeding program for resistance to ASR.

The invention belongs to the field of cultivation of cedarwood, and particularly relates to a planting method of the cedarwood. The planting method of the cedarwood comprises first step of seed collection, the second step of sowing and seedlings growing, the third step of seedlings management, the fourth step of selection of a planted land, the fifth step of careful soil preparation, the sixth step of transplantation and field planting of nursery stock, and the seventh step of fertilization. According to the planting method of the cedarwood, the disease-resistant, wind-resistant and cold-resistant performance of the cedarwood can be strengthened, the growth of the cedarwood is quickened, the cedarwood can quickly become useful lumber, the lumber rate is high, the tree form is straight and well-proportioned, and the cedarwood lumber is good in quality.

The invention relates to kosakonia radicincitans and an application thereof. The kosakonia radicincitans GXGL-4A is preserved in China General Microbiological Culture Collection Center on June 2, 2016 with registered preservation number of CGMCC No.12588, and the sequence of a 16S rRNA gene part is shown as SEQ ID NO.1. The nitrogen-fixing bacterium GXGL-4A provided by the invention has an excellent microbial nitrogen-fixing capacity; and in a non-nitrogen Ashby medium, a nitrogen-fixing enzyme activity is 232.94+/-8.82nmol of C2H4/(mL.h). In addition, the K.radicincitans GXGL-4A provided by the invention has a good ammonium-secreting capacity; and by cultivating the GXGL-4A on the non-nitrogen Ashby solid medium, the content of the detected extracellular ammonium nitrogen is 2.51 [mu]g/mL. The strain (the kosakonia radicincitans), which has a capsule, can resist bad external environmental conditions such as ultraviolet ray, drought and the like, and the strain has a significant effect of promoting the growth of such crops as corn, rice and the like. The strain can be used for preparing bacterial manure and can reduce the application amount of a nitrogen fertilizer, so as to achieve effects of increasing production, preventing eutrophication of a water body, protecting environment and the like.

The invention discloses a high-strength low-abrasion abrasion-resisting ball used for a ball mill and a preparation method of the high-strength low-abrasion abrasion-resisting ball. The high-strengthlow-abrasion abrasion-resisting ball used for the ball mill comprises a cladding layer and an abrasion-resisting ball base body, and the abrasion-resisting ball base body comprises the following components of C, B, Ti, Mg, Si, W, Cr, Mn, Ni, V, Zr, Nb, Mo, Ce, Nd, Sm, Er and the balance Fe and inevitable impurities. According to the high-strength low-abrasion abrasion-resisting ball used for the ball mill and the preparation method of the high-strength low-abrasion abrasion-resisting ball, through optimization of the matching ratio and a preparation technology, the high-strength low-abrasion abrasion-resisting ball has the advantages of being large in impact toughness, good in corrosion resistance, large in strength, small in abrasion and the like, and the working efficiency of the abrasion-resisting ball is effectively improved.

The invention discloses a corrosion resisting low-abrasion coating abrasion-resisting ball for a ball mill and a preparation method of the corrosion resisting low-abrasion coating abrasion-resisting ball. The corrosion resisting low-abrasion coating abrasion-resisting ball for the ball mill is composed of an abrasion-resisting ball base body and a coating wrapping the surface of the abrasion-resisting ball base body. The abrasion-resisting ball base body comprises the following components: C, B, Mg, Al, Si, Mn, Cr, Zr, Mo, Ni, V, Ti, Nb, Ce, Y and the balance Fe and unavoidable impurities. Coating raw materials include nano ceramic powder, nickel powder and manganese powder. According to the corrosion resisting low-abrasion coating abrasion-resisting ball for the ball mill and the preparation method of the corrosion resisting low-abrasion coating abrasion-resisting ball, by optimizing a formula and a preparation process, the obtained product is good in corrosion resistance and mechanical performance, low in abrasion and long in service life.