新型复混肥黑劲道对直播稻产量及抗倒性的影响  

Effects of new compound fertilizer Heijindao on yield and lodging resistance of direct seeding rice

作　　者：刘航江 唐乐丹 陈国兴[1] 史仕军 LIU Hang-jiang;TANG Le-dan;CHEN Guo-xing;SHI Shi-jun(College of Plant Science and Technology,Huazhong Agricultural University,Wuhan 430070,China;Company of Wuhan Century Jinhui Technology,Wuhan 430070,China)

机构地区：[1]华中农业大学植物科学技术学院,武汉430070 [2]武汉世纪金辉科技有限公司,武汉430070

出　　处：《湖北农业科学》2020年第15期54-59,共6页Hubei Agricultural Sciences

摘　　要：为探究新型复混肥黑劲道在生产上的应用效果,利用杂交稻隆两优1988和常规稻黄华占作为试验材料,以普通复合肥为对照,通过田间小区试验,分析比较不同施肥处理对水稻(Oryza sativa L.)产量形成及抗倒伏能力的影响。结果表明,与普通复合肥相比,黑劲道复混肥能有效提高水稻产量,增产的主要原因是有效穗数和千粒重显著提高;使水稻最高茎蘖数和有效茎蘖数均有明显增加,而最终成穗率与普通复合肥相差不大;茎蘖数的增加使各生育时期叶面积指数明显高于对照,干物质积累和作物生长也表现出明显的优势,保证光合产物形成;能显著改善水稻抗倒伏相关性状,成熟期可优化各节间配比,使杂交稻和常规稻株高及重心高度降低、茎秆基部节间粗度和茎壁厚度增加,进而使基部抗折力增加、倒伏指数降低。In order to explore the application effects of the new compound fertilizer Heijingdao in production,taking hybrid rice vari⁃ety Longliangyou 1988 and conventional rice variety Huanghuazhan as experimental materials,two fertilizer treatments were set and used common compound fertilizer as control to analyze and compare the effects of different fertilization treatments on rice yield forma⁃tion and lodging resistance by field plot experiment.The results showed that,compared with control,the effects of Heijingdao com⁃pound fertilizer could effectively increase rice yield,and the main reason was that the the number of effective panicles and 1000-grain weight were significant increase.It can increase the number of the highest stems and the number of effective stems of rice,but the final earing rate was not much different compared with that of common compound fertilizer.The increase of stem number made the leaf area index of each growth period significantly higher than that of the control.Dry matter accumulation and crop growth of rice applied Hei⁃jingdao compound fertilizer also showed significant advantages,ensuring the formation of photosynthetic products.This compound fer⁃tilizer can significantly improve the lodging resistance-related characters in the mature stage,the ratio of internodes of rice applied Heijingdao compound fertilizer was optimized to reduce the plant height and barycenter height of hybrid and conventional rice,and in⁃creased the basal internode thickness and wall thichness of the stem,so that the flexural strength of basal internode increased and lodg⁃ing index decreased.

关 键 词：水稻(Oryza sativa L.) 新型复混肥 生长发育 抗倒伏 产量 

分 类 号：S143.6[农业科学—肥料学] S511[农业科学—农业基础科学]