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首页> 外文期刊>Chilean Journal of Agricultural Research >Effects of effective microorganisms biochar-based fertilizer on photosynthetic characteristics and chlorophyll content of flue-cured tobacco under water-saving irrigation strategies
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Effects of effective microorganisms biochar-based fertilizer on photosynthetic characteristics and chlorophyll content of flue-cured tobacco under water-saving irrigation strategies

机译：有效微生物生物炭肥对节水灌溉策略下烤烟的光合特性和叶绿素含量的影响

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Effective microorganism biochar-based fertilizer (EMBF) can improve the physiological properties of tobacco (Nicotiana tabacum L.) In this study, the irrigation and EMBF rates were applied as factors that influence the photosynthetic characteristics and chlorophyll content of tobacco. The experiment involved 12 treatments: CK1-CK3, T1-T3, T4-T6, and T7-T9; these four groups represented 0, 100, 300, and 600 g EMBF pot-1, respectively. Each group was irrigated at rates of 40, 80, and 120 L pot-1. When comparing with the control treatment CK, results showed that net photosynthetic rate (Pn), stomatal conductance (gs), intercellular CO2 concentration (Ci), transpiration rate (Tr), and soil plant analysis development (SPAD) increased by 8.21%-107.03%, 18.78%-118.27%, 18.78%-118.27%, 7.24%-104.15%, and 3.47%-69.09%, respectively, after EMBF application. The Pn, gs, Ci, and Tr at the growth and maturity stages were highly significant (P 0.01) and positively correlated with EMBF application. The Pn, gs, and Tr were significant (P 0.05) and positively correlated with irrigation, and Ci was less affected by irrigation (P 0.05). The SPAD value of flue-cured tobacco at three growing stages was highly significant (P 0.01) and positively correlated with the irrigation and fertilization rates. The SPAD values at the growth and maturity stages were higher than those at the rooting stage by 46.73%-79.2% and 2.21%- 46.17%, respectively. Furthermore, the 80 L pot-1 irrigation rate combined with 300 g EMBF pot-1 is the best water and fertilizer combination. The results of this study might provide theoretical and practical guidance for growing flue-cured tobacco in production areas.
机译：有效的微生物生物炭肥料（嵌入式）可以改善本研究中烟草（Nicotiana Tabacum L.）的生理特性，将灌溉和嵌入率应用于影响烟草光合特性和叶绿素含量的因素。实验涉及12种治疗：CK1-CK3，T1-T3，T4-T6和T7-T9;这四个组分别表示为0,100,300和600g嵌入孔-1。每组在40,80和120升罐1的速率下灌溉。当与对照处理CK进行比较时，结果表明净光合速率（PN），气孔电导（GS），细胞间CO 2浓度（CI），蒸腾率（TR）和土壤植物分析（SPAD）增加了8.21％ - 107.03％，18.78％-118.27％，18.78％分别-118.27％，7.24％-104.15％，和3.47％-69.09％，后EMBF应用。生长和成熟度阶段的PN，GS，CI和Tr非常显着（P <0.01），与嵌入式施用呈正相关。 PN，GS和Tr是显着的（P <0.05）并与灌溉呈正相关，CI受冲洗的影响较小（P> 0.05）。在三个生长阶段的烤烟的Spad值非常显着（P <0.01），与灌溉和施肥率正相关。生长和成熟阶段的SPAD值均分别高于生根阶段的标志值46.73％-79.2％和2.21％ - 46.17％。此外，80升壶灌浆率与300克嵌入式锅1合并，是最好的水和肥料组合。本研究的结果可能为在生产区生长烤烟的烤烟提供理论和实践指导。

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