生物刺激素原料对大豆(甘氨酸max)作物的影响,单独使用或与除草剂联合使用

IF 3.5 Q1 AGRONOMY
Giulia Franzoni, Roberta Bulgari, Francesco Elia Florio, Enrico Gozio, Daniele Villa, Giacomo Cocetta, Antonio Ferrante
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引用次数: 0

摘要

生物刺激剂在植物中发挥积极作用,提高产量和品质,减轻非生物胁迫的负面影响。其中,除草剂的施用可能对非靶植物造成伤害。目前,关于生物刺激素和除草剂之间相互作用的信息有限。方法研究除草剂(Harmony®50 SX®+ Tuareg®+ Zetrola®)与几种生物刺激原料(BRM)联合使用对大豆农艺和生理特性的影响。试验分2020年和2021年两个季节进行,分别单独施用该除草剂混合物或与10种BRM联合施用。结果考虑到硝酸盐、总糖浓度、黄酮醇和叶绿素a荧光相关参数,两年内出现了差异。单独施用除草剂的植株叶绿素含量显著下降(2020年为- 45%),但与硅酸钾联合施用后,叶绿素含量恢复到对照水平。在第二年的试验中,硅酸钾与除草剂混合施用也取得了同样的积极效果。与此同时,叶绿素含量和氮素指数随不同年份的施用而增加,分别增加8%和30%。2020年,应用藤蔓(+16%)和腐植酸(+7%)证实了生物刺激剂对产量的显著影响。然而,与除草剂的联合使用抵消了这一增长。从这些实验中获得的结果支持使用生物刺激剂改善特定品质性状(叶绿素含量、叶片氮状态和次生代谢物积累)。同时,由于外界因素(环境、年份等)对生物刺激素的药效仍有较大影响,生物刺激素与除草剂联合使用的潜力还有待进一步探索。
本文章由计算机程序翻译,如有差异,请以英文原文为准。
Effect of biostimulant raw materials on soybean (Glycine max) crop, when applied alone or in combination with herbicides
Introduction Biostimulants exert positive functions in plants, improving yield and quality, and alleviating the negative effects of abiotic stresses. Among them, the application of herbicides may cause damage to nontarget plants. At present, limited information is available regarding the interaction between biostimulants and herbicides. Methods The purpose of the present study was to assess the effect of an herbicide’s mixture (Harmony ® 50 SX ® + Tuareg ® + Zetrola ® ), used in combination with several biostimulant raw materials (BRM), on the agronomic and physiologic characteristics of soybean. The experiments were conducted in two seasons, 2020 and 2021, applying the herbicides mixture alone or associated with 10 BRM. Results Differences emerged between the two years, considering nitrate, total sugars concentration, flavonol, and chlorophyll a fluorescence-related parameters. Chlorophyll content significantly declined (−45% in 2020) in plants treated with the herbicides mixture alone but, in combination with potassium silicate, the chlorophyll values were restored to control levels. The same positive effect observed in response to the combination of potassium silicate and the herbicide mixture has been confirmed in the second year of experiment. At the same time, chlorophyll content and Nitrogen Index were positively increased (up to 8% and 30%, respectively) depending on the application of some BRM and the year. A significant effect of biostimulants on yield was confirmed by the application of Ascophyllum nodosum (+16%) and humic acids (+7%), in 2020. However, the combined use with the herbicides nullifies the increase. Discussion The results obtained from these experiments support the use of biostimulants in improving specific quality traits (chlorophyll content, leaves nitrogen status, and secondary metabolites accumulation). At the same time, the potential use of biostimulants in combination with herbicides needs to be further explored since of external factors (environment, year…) still have a strong effect on their efficacy.
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来源期刊
Frontiers in Agronomy
Frontiers in Agronomy Agricultural and Biological Sciences-Agricultural and Biological Sciences (miscellaneous)
CiteScore
4.80
自引率
0.00%
发文量
123
审稿时长
13 weeks
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