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e combination of hybrid rice K17eA Series Characteristics and cultivation techniques

1, yield increased 3.22%. K17eA series have shown good combination of high yield characteristics. 2 Characteristics 2.1 Major agronomic traits will participate in the provincial Regional Trial K17eA combination of types of main agronomic traits test results list 2 (2-year average). As can be seen from Table 2,[link widoczny dla zalogowanych], e 2, excellent, e height of the 100Ctll You 6 below, other combinations in the 100Cm · 38 · Table 1K17eA series combination of the above to participate in provincial production test; e No.6 panicles at 24 .0 million / 667m or more, eK excellent 18, eK 4480, Valley F8 effective spike in 18,1 ~ 207,000 / 667m; grain structure is more coordinated, higher seed; rice excellent combination e 2, e No.6, eK excellent in 18 of the high grain weight, respectively 26.70,28.65,27.20 g, rice varieties in the 25g or so. 2.2 The growth period can also be seen from Table 2, e You 2, eK excellent in 18 of the whole growth period longer than the control 1-2d,[link widoczny dla zalogowanych], is a mid-maturing varieties of rice; e No.6 in the case of early rice varieties mature later than partial; eK 4480 can be done in Guangxi and high yield of early rice cultivation,[link widoczny dla zalogowanych], in Jiangxi, eK is a double-cropping late 4480 early maturing varieties. Valley are late in maturing varieties F8. 2.3 united in resistance to rice blast resistance for natural induced Jinggangshan identified, the results shown in Table 3 can be seen from Table 3, e excellent seedling No. 2 blast, leaf blast, panicle blast resistance is year 1 0,3,5 grade level in year 2 is 0,3,3; e You 6 level in year 1 is 2,2,0, 2 years 5; eK 18 is 4,4,5-level priority ; eK 4480 resistance level is 0 in year 1, year 2 is 0,3,7-level; Valley F8 resistance level is 3,3,5-level in year 1, year 2 of 3 , 5,7 level. Received date :2007 rice quality 3-10-22 Fund Project: national research programs (2001BA507A14) Table 3K17eA series combination of the results of species identification of blast resistance. Seedling sowing rate: rice 20 ~ 25kg/667inz, late 20kg/667iTI; Dayong kinds of content: rice 1.5kg/667in, late 1.01.25kg/667in. Rice seedlings by heat or dry bed floppy seedlings, seedling age the former 25-30d, the latter 15 ~ 20d; rice seedlings using moist to prevent seedling damage the car shoots boiled plot seedlings, seedling age ek 4480 rests in the l5 ~ 18d, Valley F8's seedling age is about 20d. 4.2 Transplanting specifications using 19.8CIn × 16.5Cln or l9.8cm × 13-3cm,[link widoczny dla zalogowanych], every 667m. 2.0 ~ 25 000 Cong captured, inserted two per hill seedlings seedlings Valley. 4.3 basal fertilizer and water management to the main fertilizer supplement. Fertilizer earlier, Table 4K17eA 57d after transplanting of rice quality series of hybrid rice varieties tested in the test results will be the female parent K17eA and send the sample Valley F8 Ministry of Agriculture, the rice and rice products quality supervision and inspection testing centers Yu Yu measurement, Other species of regional trial presided over by the provincial units sent to statutory agencies for testing unified, results are shown to Table 4: can be seen from Table 4, e You 2, e No.6, eK and eK You 18 for early rice cultivation in 4480 appearance quality than the poor, but good eating quality, eK 4480 and for rice growing rice Valley F8 better quality, up to two high-quality rice with the standard criteria. 4 high-yielding cultivation techniques of rice 3 months 4.1 timely sowing and late sowing grab clear; late flowering must first determine a good rhythm late heading, and then arranged according to species characteristics of sowing, Jingu F8 planted in the June 20, eK excellent 4480 In June 2025, combined with chemical fertilizer at sowing weeding. Each 667in nitrogenous about l0 ~ 12kg of nitrogen, phosphorus and potassium with a ratio of l: 0.5: l. Different growth stages of water management requirements of: shallow planting, protecting seedlings inch of water, shallow water tillering, thin tillers exposed to promote irrigation. Miao Shaitian enough, not without water too early. Rice seedlings against cold, heading anti-high temperature; rice planting of anti-high temperature, should be the afternoon of planting, booting and heading anti-low temperature, close attention to the late stages of the meteorological information, good cold dew wind prevention: I make. 4.4 The pest control to enhance the blast, bacterial leaf blight, sheath blight, false smut, Sclerotinia and leaf roller ball, stem borer, i of the borer, planthopper pests such as D for the prevention and treatment.
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