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SYNERGISTIC EFFECTS OF BIOCHAR AND MICROBIAL INOCULANTS ON DROUGHT TOLERANCE AND WATER-USE EFFICIENCY IN MAIZE (Zea mays L.) Samanhudi; Lixin Zhang; Hassan Bashir; Muji Rahayu; Andriyana Setiyawati; Iswahyudi
Gunung Djati Conference Series Vol. 66 (2026): The International Conference on Perennial Crops 2026
Publisher : UIN Sunan Gunung Djati Bandung

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.15575/gdcs.v66i.3388

Abstract

Drought is a primary constraint to global maize (Zea mays L.) production, and both biochar amendments and bacterial plant growth-promoting rhizobacteria (PGPR) have shown potential to mitigate its effects. However, no maize-specific meta-analysis has quantified whether these interventions act synergistically. Following PRISMA 2020 guidelines, we searched Scopus and Web of Science, identified 1,270 records, and after systematic screening selected 148 studies (52 biochar-only, 55 bacteria-only, 41 combined) from 28 countries (2009-2026). Preliminary random-effects meta-analysis of 87 effect sizes from 16 studies with complete variance data showed that amendments significantly improved multiple drought tolerance indicators. Bacterial inoculation increased measured outcomes by 26.8% (95% CI: 15.8-38.8%, p < 0.001), while biochar improved them by 5.4% (95% CI: 3.1-7.8%, p < 0.001). Significant improvements were detected for chlorophyll content (+58.8%), root length (+31.4%), relative water content (+20.3%), shoot dry weight (+16.8%), and photosynthetic rate (+14.2%). Substantial heterogeneity (I2 = 78-100%) across most outcomes indicates strong moderation by experimental conditions. These findings directly contribute to Sustainable Development Goal 2 (Zero Hunger) and SDG 13 (Climate Action), SDG 6 (Clean Water and Sanitation), SDG 12 (Responsible Consumption and Production), and SDG 8 (Decent Work and Economic Growth). This study provides a comprehensive framework and preliminary quantitative evidence supporting the use of integrated biochar-bacteria strategies for drought-resilient maize production, with full results forthcoming upon completion of data extraction from all 148 studies.
Co-Authors Adi Ratriyanto Agastya Putra Pradipta Agnofi Merdeka Efendi AHMAD YUNUS Ahmad Yunus Ahmad Yunus Alfida Muthi’ah AMALIA TETRANI SAKYA AMALIA TETRANI SAKYA Amalia Tetrani Sakya Amalia Tetrani Sakya Amalia Tetrani Sakya Amalia Tetrani Sakya Amalia Tetrani Sakya Amalia Tetrani Sakya Amalia Tetrani Sakya Amalia Tetrani Sakya, Amalia Tetrani ANDRIYANA SETYAWATI ANDRIYANA SETYAWATI Andriyana Setiyawati Andriyana Setyawati Anif Nur Artanti, Anif Nur Anindya Saras ANIVERSARI APRIANA Anne Sukmawati ARI SUSILOWATI ATMITRI SISHARMINI Ayu Lestari BAMBANG PUJIASMANTO Bambang Pujiasmanto Bambang Pujiasmanto Bambang Pujiasmanto Bambang Pujiasmanto Bambang Pujiasmanto Dewi Selvia Maulida Saputri Dewi, Reni Surya Dhimas Taufika Putra DIDIK SUDIHARDJO Djoko Purnomo Djoko Purnomo Djoko Purnomo Dwi Hardjoko Dwi Harjoko Eddy Tri Haryanto EDI PURWANTO EDI PURWANTO EDI PURWANTO Edi Purwanto Edi Purwanto EDI PURWANTO EDI PURWANTO Edi Purwanto Edi Purwanto Edi Purwanto Edi Purwanto Edi Purwanto Edi Purwanto EKA HANDAYANTA Elvy Carolina Pane ENDANG YUNIASTUTI Endang Setyowati ENDANG YUNIASTUTI Erni Irawati Eviani Eviani FAROUQ HEIDAR BARIDO Fitri Aprillia Fitria Roviqowati Fitrotunnisa Al-batul Gani Cahyo Gani Cahyo Handoyo Gani Cahyo Handoyo Hadiandra Harfiansyah Hardjoko, Dwi HASAN BASRI JUMIN Hassan Bashir Hassan Bashir Himawan Joko Riswanda Ida Rumia Manurung Ida Rumia Manurung Ida Rumia Manurung Indah Tri Retnosari Indrawan Fahmi Iswahyudi Iswahyudi Iswahyudi Iswahyudi Iswahyudi Iswahyudi Iswahyudi Iwan Dewangga Joko Prihanto Kevin Putra Setyawan Lixin Zhang MARINA RUZYATI Mochammad Danny Sukardan Muhammad Aji Cahyadi Muhammad Imam Wicaksono Muhammad Imam Wicaksono Muhammad Naufal Adani MUJI RAHAYU Muji Rahayu Muji Rahayu Muji Rahayu MUMTAZ MUAWANAH Nadia Alifia Rahma Nandariyah, Nandariyah Naufal Ghazy Wicaksono Nugraheni Nugraheni NUR AZIZAH USWATUN HASANAH NUR AZIZAH USWATUN HASANAH Nurkholis Majid Okky Talitha ONGKO CAHYONO ONGKO CAHYONO Paramasari Dirgahayu PUJI HARSONO PUJI HARSONO Puji Harsono Purwanto Purwanto Qonita Rahma Dwiyanti Rahayu, Ria Muji Rahmanto Rahmanto Retna Bandriyati Arniputri Retna Bandriyati Arniputri Retna Bandriyati Arniputri Retna Bandriyati Arniputri Retna Bandriyati Arniputri Riandy Adhitya Rina Puji Lestari RIZKA NOVI SESANTI S.Pd. M Kes I Ketut Sudiana . Saat Egra Saras, Anindya Satya Primasasta Zulhivan SELVIA SUTRIANA SETIYANINGSIH, ARY SHOLAHUDDIN SHOLAHUDDIN Sigit PRASTOWO Siti Mardhika Sari SRI HARTATI Sri Hartati Sri Hartati Sri Hartati Sri Hartati Sri Hartati Sri Hartati Sri Hartati Sri Hartati Sri Mulyani SUDADI SUDADI Sudarmi Sudarmi Sulandjari Sulandjari, Sulandjari Supriyono Supriyono SUSANTI INDRIYA WATI TRI JOKO SANTOSO Tyas Alivia Wulandari Venty Suryanti Wartoyo Wartoyo Zuraida Anniswa Bachtiar