Changmi 011 (Rice)
The main results are as follows: (1) Variety source: Changmi 011 is a conventional rice variety bred by indica and japonica intersubspecific hybrid rice resources such as IR26, Chengdu late Japonica, Romeo and Liza used by Xichang Agricultural Research Institute of Liangshan Prefecture.
(2) characteristics: the whole growth period of this variety is 160-170 days (planted in Xichang), about 7 days earlier than Shanyou 63, plant height 85 cm, ear length 18-20 cm, 120 grains per panicle, seed setting rate more than 80%, 1000-grain weight 25-27 grams. The plant type is moderate and tight, the tillering ability is strong, the flag leaves are erect, the leaves are dark green, and the rice grains are transparent. Most of the rice quality reaches the first-or second-grade high-quality rice standards issued by the Ministry. The resistance was identified as grade 4 for leaf blast and 0-1 for neck blast.
(3) yield performance: in the regional test of Liangshan Prefecture in 1987-1988, the average yield per mu was 542.1kg, which was 6.4% higher than that of the control variety Fujiang No.2.
(4) main points of cultivation: sowing seeds at the right time, cultivating strong seedlings, planting basic seedlings 10-120000 per mu, re-applying base fertilizer, early topdressing, increasing phosphorus and potassium fertilizer, timely control of diseases and insect pests in the later stage, and timely harvest to improve efficiency.
(5) suitable planting area: suitable for planting in conventional high quality indica rice areas below 1600 meters above sea level in our province.
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Strengthening the Control of Rice Diseases in Kejie Town, Changning County
In June, continuous rainfall in Kejie Town, Changning County, led to the occurrence of bacterial leaf streak in more than 8000 mu of high-quality rice in the town. The whole town quickly organized agricultural personnel to take the village as a unit, focusing on high-quality rice models, and sent two technicians from each village to carry out scientific and technological guidance to farmers, comprehensively setting off the most exciting part of the rice unified control rule dominated by bacterial leaf streak. At the same time, 200 mu of high-quality rice model areas have been established in Kejie and Dadi villages, with 20 yuan per mu of subsidy for unified defense and control, and unified use of electric sprayers for prevention and control. Cut off
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Is the replanted rice damaged by quinclorac?
Q: 4 mu of direct seeding rice is in 3 leaves and 1 heart stage, few seedlings emerge after sowing, no seedlings are found in low-lying areas, the emergence rate is less than 50%, 7~7.5 kg are sown per mu, and not long ago, quinclorac "two kill" weeding is used. May I ask, if rice is replanted in this field where there is no seedling, will the replanted rice be damaged by quinclorac? A: Quinclorac is a selective herbicide for controlling barnyardgrass in rice fields. It is generally applied at the 2-leaf and 1-core stage of rice. It is easy to cause phytotoxicity when applied too early. Before seedling 1-leaf stage, especially seedling needle stage, apply two kinds of fertilizer according to conventional dosage.
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