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中国农学通报

中国农学通报 ›› 2024, Vol. 40 ›› Issue (14): 32-38.doi: 10.11924/j.issn.1000-6850.casb2023-0462

• 农学·农业基础科学 • 上一篇    下一篇

施氮量对花生结瘤特性的影响

黄志鹏1(), 吴海宁1, 唐秀梅1, 钟瑞春1, 贺梁琼1, 蒋菁1, 韩柱强1, 刘菁2, 熊发前2(), 唐荣华1()   

  1. 1 广西农业科学院经济作物研究所，南宁 530007
    2 广西农业科学院甘蔗研究所，南宁 530007
  • 收稿日期:2023-06-15 修回日期:2023-11-28 出版日期:2024-05-15 发布日期:2024-05-09
  • 通讯作者:
    熊发前，男，1983年出生，安徽芜湖人，研究员，博士，主要从事分子生物学与花生育种研究工作。通信地址：530007 广西南宁大学东路174号 广西农业科学院，Tel：0771-3278847，E-mail：；
    唐荣华，男，1965年出生，广西兴安人，研究员，博士，主要从事花生高产高效栽培研究工作。通信地址：530007 广西南宁大学东路174号 广西农业科学院，Tel：0771-3244260，E-mail：。
  • 作者简介:

    黄志鹏，男，1984年出生，广西宾阳人，助理研究员，硕士，主要从事花生栽培与育种研究工作。通信地址：530007 广西南宁大学东路174号 广西农业科学院，Tel：0771-3244260，E-mail：。

  • 基金资助:
    现代农业产业技术体系建设专项资金“华南区域高产栽培岗位”(CARS-13); 广西自然科学基金项目“甘蔗/花生间作体系内花生固氮效应及氮素高效利用机理研究”(2021GXNSFBA196026); 广西农业科学院基本科研业务专项“花生栽培技术及理论创新团队”(2021YT053); 广西农业科学院基本科研业务专项“花生优异种质创新与新品种选育团队”(2021YT052)

Effect of Nitrogen Application Rate on Nodulation Characteristics of Peanut

HUANG Zhipeng1(), WU Haining1, TANG Xiumei1, ZHONG Ruichun1, HE Liangqiong1, JIANG Jing1, HAN Zhuqiang1, LIU Jing2, XIONG Faqian2(), TANG Ronghua1()   

  1. 1 Cash Crops Research Institute, Guangxi Academy of Agricultural Sciences, Nanning 530007
    2 Sugarcane Research Institute, Guangxi Academy of Agricultural Sciences, Nanning 530007
  • Received:2023-06-15 Revised:2023-11-28 Published:2024-05-15 Online:2024-05-09

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摘要：

为了探明施氮量对田间栽培花生结瘤特性的影响，以‘桂花36’为研究材料，设置6个氮用量处理：施氮量0%（N0，不施氮）、施氮量25%（N1，少量施氮）、施氮量50%（N2，中量施氮）、施氮量75%（N3，少量减施氮）、施氮量100%（N4，常规施氮67.50 kg/hm2）、施氮量150%（N5，大量施氮），大田试验采用随机区组设计，田间取样共33次，研究了不同施氮量对结瘤特性观测值和变化规律的影响。结果表明：在采样前期，根瘤数量与直径的观测值平均数随施氮量的上升而下降；在采样中、后期，根瘤平均数量的最小值都出现在N4处理，平均直径的最小值则均出现在N5处理，既氮对数量的抑制在常规施氮条件下达到最强，对直径的抑制随用量的增加而增强；从N0到N4，以其中任一处理为参照时，参照处理与相邻处理间的变化差异显著概率在各采样期均未达到很可能级别，既当施氮量小于67.50 kg/hm2时，25%幅度的氮用量增减不会导致根瘤数量和直径观测值产生差异显著的变化；相比常规施氮，大量施氮时根瘤直径观测值在采样中、后期很可能显著下降，数量观测值在采样后期很可能显著上升。

关键词: 花生, 施氮量, 根瘤数量, 根瘤直径

Abstract:

To find out the effect of nitrogen application rate on nodulation characteristics of peanut, ‘Guihua 36’ was used as research material, six treatments of nitrogen application rate were set up, including 0% (N0, no nitrogen application), 25% (N1, small amount of nitrogen application), 50% (N2, moderate nitrogen application), 75% (N3, small amount of decreased nitrogen application), 100% (N4, conventional nitrogen application rate, 67.50 kg/hm2), 150% (N5, large amount of nitrogen application). A randomized block design field trial was conducted to study the effects of different nitrogen application rates on the observed values and variation rules of nodulation characteristics in 33 sampling observations. The results showed that the average values of nodule number and nodule diameter decreased with the increase of nitrogen application rate in the early phase of sampling. The minimum value of average nodule number appeared in N4 treatment and the minimal value of average nodule diameter appeared in N5 treatment in the middle and late period of sampling. The inhibition of nitrogen to amount was the strongest in conventional nitrogen application, and the inhibition to diameter increased with the increase of nitrogen application rate. When any one of the treatments from N0 treatment to N4 treatment was used as a reference, the probability of significant difference between the reference treatment and the adjacent treatment did not reach the probable level in each sampling period, and the increase or decrease of 25% nitrogen application rate did not lead to significant difference in nodule number and nodule diameter when the nitrogen application rate was less than 67.50 kg/hm2. The observed value of nodule diameter was probably to decrease significantly in the middle and late sampling period when a large amount of nitrogen was applied, and the observed value of nodule quantity was probably to increase significantly in the late sampling period compared with conventional nitrogen application. In this research, the direct effects of different nitrogen application rates on the number, diameter and variation law of nodules were accurately observed.

Key words: peanut, nitrogen application rate, number of nodules, diameter of nodules