First, the source: the Wujin District, Changzhou City, Jiangsu Province, rice and wheat breeding farm in 3012 (Wu complex japonica) / Denmark One early election f2 / / Forestry 205 (Feng Yu) hybrids, bred in 1987 cooked japonica varieties , with its combination of genetic and named by Jiangsu Province .1997 varieties validation, approval number: Su Shen Zi No. 266 species.
Second, the test profiles suitable areas and yield potential
Provinces and rice yield 525-720 test average 633.5kg, compared ck Sidao the 9th increase of 13.4%, the average yield of the production test 635.07 kg, representing an increase of 13.84% ck. And milled rice rate of 78.1% (Ministry of Agriculture, Rice Product Quality Supervision and Testing Center no :99-wt-158), is generally difficult to achieve the level of species (ck 73.7), representing a net increase of 4.4% ck, also Rice is the social and economic benefits in addition to the 13.84% increase in net.
Varieties bred from the sixteen years since the application of the situation, the species except central and northern Jiangsu is good applications, northern Anhui, south of Henan and Lunan already have a larger area of the application.
From the highest regional test yield and yield large square (Donghai County agricultural demonstration projects leading party) yield potential at 786.5 kg (Donghai County in 1996).
Third, the main characteristics
Miao color green, bushy stronger and distribution is moderate, but very moderate leaf width, height in Huaibei generally 93-95 cm (Hainan winter fan 55 cm), ear length 15 cm; around 100 single spike, seed rate of 93% so, the partial dense grain, grain weight 27-28 grams, short lemma, no awn, lemma color and apiculus rod yellow pubescences medium; oval tablets, length 4.8mm, width 3mm .. maturity is cooked japonica , moderately sensitive to short day for single cropping Sunan growth period of 140 days, the Soviet Union in 145 days, 150 days in Huaibei; prosperity growth period of winter in Hainan, 118 days; main stem leaf number 17 in Huaibei leaves, the Soviet Union 16 leaves, 15 leaves of Sunan, in Hainan, 10-11 leaves; whole growth period of 110 days or so, compact plant, the flag leaf lift, tip slightly above the top spike about 2cm, cooked color is good, fast filling .
Fourth, the rice quality: Ministry of Agriculture, Rice Product Quality Supervision and Testing Center 1999 Provincial Academy of Agricultural send sample test results: brown rice rate of 85.3%, 78.1%, milled rice, grain length 4.9mm, the aspect ratio of 1.6, chalky rate 12%, 1.1%, chalkiness, transparency level 2, alkali spreading value 4.7, gel consistency 7.2mm, amylose content of 16.2%, protein content of 9.2%, up to 2 meters ministerial quality standards.
V. Resistance: high resistance to rice blast physiological races in c7, in c11, the d7, the e3 measured by the Chinese rice; anti the a15, the b7, the b13, the b15, the b23, the b27, the f1 , the c1; anti in c13, the c15. Leaf blight, sheath blight identified by the Jiangsu Provincial Academy of Agricultural anti - anti. Jinzhou, Liaoning Province by the salinity of the measured and salt 3.
Economic Benefit Analysis: Zaofeng has been bred from 9 th 18 years, the province has been identified as the "fifth" Poverty breeds, this year has been identified as one of three varieties of seed application of provincial subsidies, mainly because of its high quality, high yield better combination. According provinces Look, Zaofeng 9 paddy yield increase of 13.4% compared with the control, milled rice yield of 197.3kg, increasing by 19.4% compared with the control, the equivalent of the actual yield of rice 108.29kg, and grain quality tests twice were 2 and 3 level, is a high-quality rice .1997 level of Town, Donghai County Sheep Lie village square acres yield average yield 731.67kg, Jiangsu Province Agricultural Engineering Leadership prize, 1998 East Punan Guanzhuang town square acres for yield 766.2kg Jiangsu Province Agricultural Engineering Leadership Award, and more Wuyujing the 3rd increased 10.03%. to 2003 (including southern Shandong, northern Anhui and southern Henan) application area has more than three Qianwan Mu. From a variety of advantages and analyze its current form, the application area of the species will be more than 100 million mu. Reduced by 0.85 to calculate the value of the coefficient, the actual social benefits will be more than 9 billion.
Seven, cultivation techniques: This variety is mainly used in the Soviet Union and Huaibei. To get Zaofeng 9 700kg of rice per mu, the total number of spikelets 0.28-0.3 need one hundred million / acre, grain plumpness of 0.75-0.8, its potential capacity ratio of 16-18m2gd / ten thousand. Sufa need to establish stable populations drop, requiring 15-18 days after transplanting seedlings tiller panicles of about 280,000 35 - 38 days and reached a peak seedlings 35-38 million / acre. Maximum leaf area index of about 7.5, and efficient full heading canopy leaf area index 3.725, 61.07% of the total area of coefficients, leaf area after heading a continuation of a long, slow decline, high biomass accumulation, good filling stage leaves turn color create favorable conditions for seed, grain weight and quality improvement.
1, suitable for early sowing: Sowing more than 700kg per mu range May 5 - May 21, 2009, especially in the May 5-May 15 for the best. Fat dry nursery bed under the age of 45 days condition to 50kg / acre as well; dry nursery seedling throwing plastic disc should be scheduled on May 10-15, 30-35 days seedling age, height 15-17cm is appropriate, seeding rate 40 - 50 g / plate help foster seedling.
2, expanding to cut the seedlings, rational close planting: In the case of dry nursery seedlings per acre to 25,000 points as well, row 7-inch hole spacing × 3.5 inches for the best. Rice cultivation in Huaibei long as stubble transplanting seedling age 7 or 8 inch × 3.2 inch × 3 inch inch, population density 6-8 million / acre is appropriate. Seedling throwing a few points to 2.3-2.5 square hole / acre, population density 6-8 million / acre is appropriate, Daejeon throw 50 (about 561 holes / plate), high yielding 40-50 throwing disc. Grasp with rake with throwing improve survival rate legislation to eliminate pimple seedlings and large gap.
3, fertilization, balanced nitrogen fertilizer: 700kg of rice per mu more than the general level of nitrogen required 20kg, P and K pure volume of not less than 8kg / acre, silicon fertilizer 12kg / acre, and zinc 1.75kg / acre. Nitrogen Management in tillering and panicle base to 6:4 for the best, phosphorus, potassium and trace elements silicon, zinc-based facilities are the best.
4, water-saving irrigation, "ahead of" resting fields: According to the "demonstration application Zaofeng NINE comprehensive research report," Donghai County crop cultivation guidance station Zaofeng NINE strong tillering ability, Daejeon fat dry nursery bed Basal Fertilizer Spike fertilizer spikes seedlings into 6:4 to put 70% of the highest yield fields (spike rate, single panicle and grain weight are increased accordingly). When throwing field Basal Fertilizer put more fields in the beginning of the spike should be 70% of seedlings, transplanting seedlings 80 percent spike field is resting fields in order to effectively control ineffective tillers, reducing peak seedlings, improve spike rate, optimize population quality, improve photosynthetic efficiency, reduce pest damage and improving lodging capacity. Water slurry management to take "shallow transplanting inch water live trees, thin water tiller, ahead of the resting fields, water flowering, alternating wet and dry grout" method, the latter should not prematurely without water is conducive to enhancing grain weight and quality. Throwing rice seedling throwing water to dry or thin, shallow layer of seedling throwing 3-5 days to build, up to 70% of resting Tian Miao spike, then intermittent irrigation-based, control groups, and promote individual robust, improving lodging capacity.
5, integrated control of pests: On weed control, Raising Sparse field at 5-7 days after transplanting, mu, "Jing Ke Cao Xing" mixed bag of fertilizer applicator, after throwing field in throwing 10-12 days, with a net bag throwing spray or watered with "paddy One" mixed bag of fertilizer applicator, chemical control can receive good results. In prevention technology, first grasp the seed chemical treatments, use the "worm fungus clear" soaking disinfection, chalky seedling disease prevention; Second, in early June, integrated control of rice seedling thrips, stem borer, seedlings and other major pests of rice blast Provincial drug, labor, efficient large role; Third, strengthening the field in the late pest control, with emphasis on rice booting jointing stage on July 20, August 10 and August 20 overall control, to rid Sheath , rice blast, rice leaf roller, stem borer, planthopper pests such as the implementation of pesticide mixed; dialogue single leaf blight implement monotherapy treatment. According to Rice physiological periods and pests occurrence, implement mixed rid of reducing the frequency of administration, reduce control costs, reduce pollution, protect the ecological |
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