不同生长促进剂在水稻始穗期的应用效果  

Effects of Different Plant Growth-promoting Agents on Rice Growth in the Initial Heading Stage

作　　者：赵群[1] 赵海霞[1] 周惠玲 杨彩云[1] 王军 ZHAO Qun;ZHAO Haixia;ZHOU Huiling;YANG Caiyun;WANG Jun(Agricultural Technology Extension Center of Huaiyin District of Huai'an City,Huai'an 223300,China;Bureau of Rural Affairs of Huaigao Town in Huaiyin District of Huai'an City,Huai'an 223300,China)

机构地区：[1]淮安市淮阴区农业技术推广中心,江苏淮安223300 [2]淮安市淮阴区淮高镇农村工作局,江苏淮安223300

出　　处：《大麦与谷类科学》2023年第2期27-30,共4页Barley and Cereal Sciences

摘　　要：在淮阴区淮高镇水稻田,以南粳9308为对象,研究在水稻始穗期喷施“穗伴侣”含腐植酸水溶肥料、98%磷酸二氢钾、85%黄腐酸、98%赤霉素对水稻植株性状和产量性状等的影响情况,明确不同生长促进剂的应用效果。结果表明,喷施“穗伴侣”腐植酸水溶肥料能降低株高3.5 cm,增强水稻抗倒伏能力;能够增加光合产物积累,增加穗粒数与千粒质量,提高水稻产量,小区产量较对照的增产率达到10.58%,增产效果明显。A field trial was carried out in a paddy field of Huaigao Town,Huaiyin District of Huai'an City in 2022 to investigate the effects of different plant growth-promoting agents on the agronomic traits and yield of rice,using the variety Nanjing 9308 as the tested variety.Four plant growth-promoting agents were investigated,which were the water-soluble fertilizer“Ear Mate”containing humic acid,98% potassium dihydrogen phosphate,85% fulvic acid,and 98% gibberellic acid(GA).They were sprayed onto the leaves of rice in the initial heading stage.The results showed that the spray-application of“Ear Mate”reduced the plant height by 3.5 cm and enhanced the lodging resistance of rice,increased photosynthate accumulation,and elevated grain number per ear and 1000-grain weight,leading to a very significant increase in grain yield per plot by 10.58%.

关 键 词：生长促进产品 水稻 生物学性状 产量性状 

分 类 号：S511[农业科学—作物学]