中东绿聚能复合肥对武运粳23号产量·根系性状及氮素吸收利用的影响  

Effects of Lüjuneng Compound Fertilizer on Yield,Root Traits and Nitrogen Uptake and Utilization of Wuyunjing 23

作　　者：王子涵 曹文雅 朱正康 彭斌 王树深[1] 伏桐 丁周宇 杨英 舒小伟 周娟 姚友礼 黄建晔 王余龙 董桂春 WANG Zi-han;CAO Wen-ya;ZHU Zheng-kang(Key Laboratory of Crop Genetics and Physiology of Jiangsu Province,Yangzhou University/Jiangsu Provincial Collaborative Innovation Center for Modern Industrial Technology of Food Crops/Key Laboratory of Plant Functional Genome of Ministry of Education,Yangzhou,Jiangsu 225009;Danyang Agriculture and Rural Affairs Bureau of Jiangsu Province,Danyang,Jiangsu 212300;Yixing Agriculture and Rural Affairs Bureau of Jiangsu Province,Yixing,Jiangsu 214200)

机构地区：[1]扬州大学江苏省作物遗传生理重点实验室/江苏省粮食作物现代产业技术协同创新中心/教育部植物功能基因组重点实验室,江苏扬州225009 [2]江苏省丹阳市农业农村局,江苏丹阳212300 [3]江苏省宜兴市农业农村局,江苏宜兴214200 [4]盐城工学院江苏省海洋滩涂生物化学与生物技术重点建设实验室,江苏盐城224051

出　　处：《安徽农业科学》2024年第14期120-126,143,共8页Journal of Anhui Agricultural Sciences

基　　金：江苏省农业重大技术协同推广计划项目(2023-ZYXT-03-2);2023年江苏稻米产业集群项目(203320175);常州市2022年农业科技创新和示范推广项目“中东绿聚能复合肥对水稻生长及产量的影响”(204031325);2023年常州市水稻产业技术集成创新中心项目(CAIC〔2023〕005);2023年扬州市中央农业相关专项转移支付项目(203310383);“小超人”有机无机缓释系列产品水稻试验合作项目(204035348)。

摘　　要：在盆栽和大田栽培条件下,研究中东绿聚能复合肥对武运粳23号水稻产量、根系性状及氮素吸收利用的影响。结果表明,中东绿聚能复合肥与普通复合肥相比,盆栽和大田试验均能显著提高武运粳23号水稻的产量。施用量或施用比例越大增产幅度越大,越早施用增产效果越好,基肥增幅最大。从大田试验来看,MT5和HT5处理的增产效果最优。产量增加主要是穗数的显著增加;成熟期氮素累积量平均增加24.9%,对比、施用量、施用时期平均分别增加30.03%、23.66%、20.79%。随着绿聚能施用量的增加氮素累积量总体呈增加趋势,在促分蘖、促大穗的肥料中,早施的效应明显大于晚施;对氮收获指数、氮肥利用率、氮肥农学利用率、氮肥偏生产力均有促进作用,随着绿聚能施用量的增加,后3个指标总体呈增加趋势;栽后30 d的水稻单株不定根数、单株不定根总长、单株根干重、总吸收面积、活跃吸收面积均较低,单株根活力、最长根长、众数根长较高;抽穗期上述根系性状均高于对照,但冠根比低于对照。成熟期冠根比高于对照。由此可知,施用绿聚能复合肥能显著促进水稻穗数的增加,提高籽粒产量和氮肥利用率。To investigate the effects of the new type middle east Lüjuneng compound fertilizer on the yield,root characteristics and nitrogen absorption and utilization of Wuyunjing 23 rice,the experiments were designed under pot cultivation and field cultivation conditions.Compared with conventional compound fertilizer,the yield of Lüjuneng compound fertilizer was increased in pot experiment and field experiment.The higher the application amount or proportion,the greater the yield increase.The earlier the application,the better the yield increase.Field tests showed that MT5 and HT5 treatment had the best yield increase effect.The increase of yield was mainly due to the significant increase of ear number.The average nitrogen accumulation in maturity stage was increased by 24.9%,and the average nitrogen accumulation in contrast,application and application period was increased by 30.03%,23.66% and 20.79%,respectively.With the increase of Lüjuneng application rate,nitrogen accumulation showed an increasing trend,and the effect of early application was obviously greater than that of late application.Nitrogen harvest index,nitrogen use rate,nitrogen agronomic use rate and nitrogen partial productivity were all promoted.With the increase of Lüjuneng application rate,the latter three indexes showed an increasing trend.At 30 days after planting,the number of adventitious roots per plant,total length of adventitious roots per plant,root dry weight per plant,total absorbed area and active absorbed area were lower,while the root activity per plant,longest root length and mode root length were higher.At heading stage,the above root characters were higher than control group(CK),but the root-shoot ratio was lower than CK.Root-shoot ratio at maturity was higher than that of CK.The application of Lüjuneng compound fertilizer significantly promoted the increase of ear number,yield and nitrogen use efficiency of rice.

关 键 词：绿聚能复合肥 水稻 产量 根系性状 氮素吸收利用 

分 类 号：S511.22[农业科学—作物学]