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| 水稻新品种丰优293抗倒超高产栽培技术研究 | |
| 引用本文： | 严志,张丛合,陈金节,申广勒,周桂香,石英尧,陈琳,刘兴江,张云虎.水稻新品种丰优293抗倒超高产栽培技术研究[J].安徽农业科学,2009,37(15):6918-6919. |
| 作者姓名： | 严志 张丛合 陈金节 申广勒 周桂香 石英尧 陈琳 刘兴江 张云虎 |
| 作者单位： | 1. 安徽农业大学,安徽,合肥,230031;安徽荃银高科种业股份有限公司,安徽,合肥,230088 2. 安徽荃银高科种业股份有限公司,安徽,合肥,230088 3. 安徽农业大学,安徽,合肥,230031 |
| 基金项目： | 国家星火计划，安徽省科技攻关计划，合肥市重点科技计划 |
| 摘 要： | 目的]为丰优293的大面积推广提供技术指导。方法]以水稻品种丰优293和11838（对照）为材料，研究不同施肥水平（施纯氮225、150、75kg／hm^2）对2品种抗倒性（株高、重心高度、节间壁厚和倒伏指数）和产量及产量构成因素的影响。并总结了丰优293的高产栽培技术要点。结果J3种肥力水平下，丰优293的倒伏指数、株高、重心高度均低于11838，而基部3个节间的厚度明显厚于11838；3种肥力水平下，丰优293的穴穗数低于11838，但其穗粒数、结实率、千粒重、理论产量和实际产量均高于11838。结论]相同肥力水平下。丰优293的抗倒性和产量均优于11838。丰优293的最适播期为4月中下旬，最适移栽时问为5月中下旬，秧田用种量和扦插密度分别为180kg／hm^2和16．5cm×23．1cm。 |
| 关 键 词： | 丰优293 施肥水平 抗倒性 产量 |
Study on Lodging Resistance and Super High-yielding Cultivation Technique for New Rice Variety Fengyou 293 |
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| Institution: | YAN Zhi et al (Anhui Agiealtural University, Hefei, Anhui 230031 ) |
| Abstract: | Objective] The aim was to provide the technical guidance for the extension of Fengyou 293 in large scale.Method] With rice varieties of Fengyou 293 and II838(CK) as the materials,the effects of different fertilization levels(225,150,75 kg N/hm2) on lodging resistance(plant height,height of gravity center,wall thickness of internode and lodging index),yield and yield compositions of 2 varieties were studied.And then the key cultivation techniques for Fengyou 293 with high yield was summarized.Result] Under 3 fertilization levels, the lodging index,plant height and height of gravity center of Fengyou 293 were all lower than those of II838,and the thickness of 3 basal internode of Fengyou 293 was obviously thicker than that of II838.Under 3 fertilization levels,the number of spike per hole of Fengyou 293 was lower than that of II838,while its grain number per panicle,setting percentage,1000-grain weight,theoretical and actual yield were all higher than those of II838.Conclusion] Under the same fertility level,the lodging-resistance and yield of Fengyou 293 were all better than those of II838.The optimal sowing day of Fengyou 293 was middle and lastten day of April and its optimal transplanting time was middle and last-ten day of May,and its sowing dosage and cutting density was 180 kg/hm2 and 16.5 cm×23.1 cm resp. |
| Keywords: | Fengyou 293 Fertilization level Lodging resistance Yield |
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