93results about How to "Increase the number of tillers" patented technology

The invention pertains to the field of agricultural cultivation and relates to a rice planting method. The method comprises following steps: 1), selecting rice seeds and immersing seeds with seed immersion liquid at the temperature of 35 to 37 DEG C for 12-16 hours; 2), spraying seedling-stage fertilizers; 3) transplanting seedlings to large fields scatted with planting base fertilizers when seedlings grow to the five-six-leave period; 4), dressing tillering fertilizers when rice seedlings start to tiller; 5), dressing flowering fertilizers when rice seedlings start to blossom; 6), dressing grouting fertilizers and applying leaf fertilizers when rice seedlings start to grout; and 7), harvesting. The rice planting method has following beneficial effects: the rice planting method is highly targeted and used for applying fertilizers to all growth periods; in combination of seed immersion liquid, the germination period can be shortened in order to quicken the growth of rice; stress resistance of rice is improved; the period from germination to blossom can be shortened; the flowering period and the production period can be prolonged; in the tillering period, tiller number can be increased by tillering fertilizers; flowering fertilizers are applied during the flowering period in order to improve successful rate of pollination; by dressing grouting fertilizers and leaf fertilizers, grouting rate can be greatly increased in the grouting period in order to improve yield and rice grains are full.

The invention relates to plant gene engineering field, specially relates to a isolation and cloning of Osa-MIR156e gene for controlling rice tillering and application therefor. The Osa-MIR156e gene has a plurality of orthologous genes in rice gene groups in gene family MIR156 same with arabidopsis ath-MIR156 gene. The Osa-MIR156e gene has function of controlling rice tillering, raising or abating expression amount of Osa-MIR156e gene to control plant tillering or branching amount to generate ideal plant type, so the object of increase production is accessed.

Novel gibberellin 2-oxidase (GA2ox) genes were identified. Differential expression of GA2ox genes correlated with flower development, seed germination, tiller growth and other developmental processes. In addition, the early and increased growth of tiller and adventitious root and altered root architecture caused by overexpression of GA2oxs further suggest the pleiotropic role of GA2oxs in controlling growth and architecture in plants such as rice. GA2ox5, GA2ox6 and GA2ox9 were three genes encoding class C20 GA2oxs in rice. Mutants or transgenic rice overexpressing class C20 GA2oxs exhibited a broad range of mutant phenotypes, including semi-dwarfism, increased root system and higher tiller numbers that may favor grain yield. Mutations in the conserved domain III were found to affect the physiological activity of class C20 GA2oxs. Methods are described for controlling plant growth and architecture by controlling gene expression of gibberellin 2-oxidase in the plant.

The invention relates to a bacillus mucilaginosus strain which is obtained through ultraviolet mutagenesis and has higher Si-releasing capability, and the CGMCC ((China General Microbiological Culture Collection Center) NO of the strain is 4667. The invention also relates to applications of the strain. Experiments prove that, by adopting the strain, the available silicon content and water-soluble silicon content of soil can be increased by more than 20%; the root growth can be promoted, the dry weight of the root system can be increased by more than 30%; the tiller number of rice can be increased by more than 20%; the yield of rice can be increased by more than 10%; and the total nitrogen content of the harvested rice plant can be increased by 7.4%, the total phosphorus content can be increased by 7.41%, the total potassium content can be increased by 3.72%, and the total silicon content can be increased by 7.89%.

The invention relates to the field of agricultural cultivation, and relates to a paddy rice cultivation method. The method comprises the following steps: (1) paddy rice seeds are selected, and are subjected to seed soaking for 12-16h with a seed soaking liquid under a temperature of 35-37 DEG C; (2) a seedling-stage fertilizer is sprayed, and a seedling-stage substrate is applied; (2) when the seedlings reach a stage of 5-6 leaves, the seedlings are transplanted into a field spread with a cultivation base fertilizer; (4) when the paddy rice seedlings start tillering, a tillering fertilizer is applied; (5) when the paddy rice seedlings starts flowering, a flowering-stage fertilizer is applied; (6) when the paddy rice seedlings starts filling, a filling fertilizer is applied, and a foliar fertilizer is added; and (7) harvesting is carried out. The method provided by the invention is highly targeting. Targeting fertilization is carried out during various growth periods. With the treatment with the seed soaking liquid, a germination period can be shortened, paddy rice growth can be accelerated, paddy rice stress resistance can be improved, a period from germination to flowering can be shortened, and a flowering period and a fruiting period can be prolonged. During the tillering stage, tillering amount is increased with the tillering fertilizer. With the flowering-stage fertilizer applied during the flowering stage, pollination success rate can be improved. During the filling stage, with the filling fertilizer and the foliar fertilizer, filling rate is greatly improved, yield is improved, and paddy rice grain fullness is improved.

The invention discloses a van-type no-tillage improved high-yield cultivation method of cold mud field. According to the method, the van width of the gully field with serious gleying can be about 3.0m; the van width of the field with light gleying can be 4.0-5.0m or more; the van length can be determined according to the field shape; the width of the van ditch is 30cm and the depth is 20-30cm; the ditch penetrates through the whole rice field; the rice plantation rule adopts wide and narrow row spacing plantation, namely, the narrow row is 20-23cm and the wide row is 43.33-50.00cm; a drainage ditch is formed between two vans in order to drain water; the dug soil can be uniformly paved on the whole van along the length direction of the van in order to ensure that the van is 15-20cm higher than the water level; the fertilizer application method is as follows: based on the application of proper nitrogen-phosphorus-potassium fertilizer, 100kg of silicon-calcium fertilizer applied in per mu is used as a modifier in order to regulate pH value and redox potential of the soil in winter paddy field. With the adoption of the cultivation method, rice yield in one season can be improved by more than 5%.

The present invention provides a seed-treating agent consisting of nutrient solution and amino sugar.The invention also discloses a technique of preparing the seed-treating agent.After performing a sprinkle treatment to crop seeds by using the seed-treating agent of the present invention, main indicators such as average radical number, tillering number, stem diameter, fresh weight and the like of a single plant can be improved substantially, and disease infestation can be reduced effectively.Nay, the production process of the seed-treating agent is simple, under a condition of a same effect, the cost of the seed-treating agent is reduced, comparing with that of the like products, and the invention breaks a new path for the production of non-pollution farm commodity.

The invention discloses a synergistic agent for a nitrogen fertilizer. The synergistic agent is characterized in that the synergistic agent is 2,5-dichloronitrobenzene, and the 2,5-dichloronitrobenzene content of the nitrogen fertilizer is 3 to 5 percent of the nitrogen content of the nitrogen fertilizer. The 2,5-dichloronitrobenzene is a product produced by optionally filtering industrial byproducts, solid waste, Chlorobenzene and tar. Tested in fields of related counties, the synergistic agent for the nitrogen fertilizer is proved to have functions of fixing the nitrogen and maintaining the fertilizer, effectively inhibiting the activities of nitrobacteria and denitrifying bacteria in soil, avoiding the loss of the nitrogen, and improving the utilization ratio of the nitrogen.

The invention provides a plant growth regulating composition containing iron chlorin e6 and application thereof. The plant growth regulating composition comprises a first active component, namely ironchlorin e6, and a second active component, namely prohexadione calcium or naphthylacetic acid, wherein a mass ratio of iron chlorin e6 to prohexadione calcium is (0.01-0.5): (10-30), and a mass ratioof iron chlorin e6 to naphthylacetic acid is (0.01-0.5): (5-10). The invention provides a preparation dosage form of the composition, namely soluble powder, water dispersible granule, wettable powderor soluble liquid. The composition is used for promoting the growth of tomatoes and rice and improving the quality of tomatoes. According to the invention, the application of iron chlorin e6 in the field of plant growth regulators is expanded.

A gene OsHT1 controlling rice tillering is disclosed. The gene is derived from oryza sativa L. cv. Zhonghua 11. The nucleotide sequence of the gene is SEQ ID NO.1, the nucleotide sequence of the open reading frame of the gene is SEQ ID NO.2, and an amino acid sequence encoded by cDNA of the gene is SEQ ID NO.3. Phenotypic analysis shows that after overexpression of the gene OsHT1, the tiller number of rice is increased from about 20-27 to 135-145, plant height is reduced and the setting rate is not changed. The gene OsHT1 is a critical regulating gene for rice tillering, and therefore rice tillering characters can be regulated by utilizing a genetic engineering technology, and the gene has important application value in the field of regulating and controlling plant shape characters on purpose by utilizing a bioengineering technology, and adjusting a plant population structure to achieve a high yield and good quality. The gene can be used for cultivating high-yield varieties of rice, wheat, and other cereal crops.

The invention provides application of five plant growth-promoting rhizobacteria to improvement of the agronomic traits of plants. Specifically, the invention discloses application of the plant growth-promoting rhizobacteria to preparation of an agricultural preparation. The agricultural preparation is used for improving the agronomic traits of plants. The plant growth-promoting rhizobacteria are selected from a group of consisting of Flavisolibacter, Ferruginibacter, Lentzea, Solirubrobacter and Terrimonas or a composition thereof. The five plant growth-promoting rhizobacteria and the composition thereof can (i) promote seed germination, (ii) increasing plant height, (iii) promoting root growth, (iv) increasing a leaf area, (v) improving a tiller number and (vi) improving output; so the five plant growth-promoting rhizobacteria and the composition have good application prospects.

The invention discloses a rice seedling raising substrate produced by utilizing radix isatidis residue. The rice seedling raising substrate is mainly produced by mixing organic material, turf, vermiculite and perlite according to a volume ratio of 2-3:1-2:1-2:1-2. The radix isatidis residue is used as a raw material to produce the rice seedling raising substrate, so that environment pollution caused by the radix isatidis residue can be reduced, and the radix isatidis residue can be utilized as a substrate; a corresponding growth regulator is added, so that strong seedlings can be raised effectively, tiller number is increased, and approaches for recycling the radix isatidis residue are more; through application of the seedling raising substrate, labor force is reduced greatly, and seedling strengthening can be promoted; after the rice seedling raising substrate is applied, diseases at the seedling stage can be reduced, and quality of seedlings can be improved.

Provided is the use of rice aerenchyma formation key gene OsLSD2 (Oryza sativa lysine-specific demethylase-2). The gene, with the accession number being AK111759,can be used in improving height, nitrogen use efficiency and/or production of plants. Specifically, prepared is rice with OsLSD2 gene overexpressed in roots and leaves by genetic method, with the root aerenchyma of rice plant changed. Compared with wild-type, the transgenic plants are higher,and the nitrogen use efficiency and single plant production increase by at least 30%.

The invention discloses plant strain associated proteins PROG 2 as well as an encoding gene and application thereof. The plant strain associated proteins PROG 2 provided by the invention are as follow a1) or a2) or a3), wherein a1) is a protein with an amino acid sequence shown in a sequence 2 in a sequence table; a2) is a fusion protein obtained by connecting a label to a N terminal and/or a C terminal of the protein shown in the sequence 2 in the sequence table; a3) is a plant strain associated protein obtained by substitution and/or deletion and/or addition of one or more amino acid residues of the protein shown by a1) or a2). Experiments prove that the plant strain associated protein PROG 2 has a very important role in regulating and controlling the rice plant type and the yield, and has a wide prospect in cultivation of new varieties of high-yield rice.

The invention discloses a method for increasing the tiller of rice to improve the yield by using lime nitrogen and the use of the lime nitrogen. The lime nitrogen is prepared from the following ingredients by mass percent: 1% to 3% of silica, 11% to 15% of free carbon, 1% to 3% of aluminum oxide, 0.2% to 1.0% of ferric oxide, 21% to 27% of free calcium oxide, 0.3% to 1.0% of magnesium oxide, 50% to 63% of calcium cyanamide and 0.1% to 0.3% of calcium carbide. In the land preparation, the lime nitrogen is spread at a rate of 10 to 15 kg/mu, rotary tillage is carried out, compound fertilizer is spread at a rate of 25 to 30 kg/mu, manual ploughing and racking are carried out, and even sowing is carried out; topdressing is carried out after 5 to 15 days at a rate of 5 to 10 kg/mu. According to the invention, the lime nitrogen is applied for concentrated seedling so as to obviously promote the root development of the seedling, control the plant height of the seedling, promote the tillering of the seedling, increase the number of tillers of a single plant, increase the basic seedling number of the transplanting, control the overage overgrowth, reduce the basic seedling damage caused by the plant height, and improve the rice yield. According to the invention, the lime nitrogen has the function of controlling soil pests, controls and removes cyanobacteria, and improves the agricultural ecology and working environment; the lime nitrogen can obviously improve the economic traits of rice, and the economic benefit is extremely remarkable.

The invention relates to a method of hydro-fluctuation belt ecological restoration in red soil regions and reservoir regions and application of the method to hydro-fluctuation belt ecological restoration in red soil regions and reservoir regions. Paspalum natatum and vetiver grass are planted at intervals in a mixed mode, one to two rows of vetiver grass are planted among two to four rows of paspalum natatum, the paspalum natatum is planted continuously in a triangular mode, and the row interval of the paspalum natatum is 10-30 cm. According to the ecosystem restoration method specific to hydro-fluctuation belts in red soil regions and reservoir regions, the ecosystem of the hydro-fluctuation belts in red soil regions and reservoir regions can be restored effectively, and mixed planting of the vetiver grass and the paspalum natatum in the hydro-fluctuation belts in red soil regions and reservoir regions can remarkably improve the leaf width, the survival rate, the coverage rate and the like compared with the mode that only the vetiver grass is planted, and further has the advantages on the aspects of the leaf with, the tiller number, the survival rate, the coverage rate and the like compared with the mode of mixed planting of the vetiver grass and other grass seeds, for example, mixed planting of the vetiver grass and wire grass.