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Suwardji
Program Studi Ilmu Tanah, Fakultas Pertanian Universitas Mataram, Indonesia
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Affect of PGPR Concentration (Plant Growth Promoting Rhizobacteria) on Growth and Yield of Some Sorghum Varieties in Dry Land Ilwati, Uun; Ujianto, Lestari; Suwardji, Suwardji
Indonesian Journal of Agriculture and Environmental Analytics Vol. 4 No. 2 (2025): July 2025
Publisher : PT FORMOSA CENDEKIA GLOBAL

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.55927/ijaea.v4i2.15129

Abstract

This study aims to determine the effect of PGPR concentration and sorghum variety on the growth and yield of sorghum plants. The experimental design used in this study was a randomised block design with a factorial experiment. This experimental design consisted of two factors, namely PGPR concentration (K0 without PGPR, K1 with 20 ml/l PGPR per plant, K2 with 40 ml/l PGPR per plant, and K3 with 60 ml/l PGPR per plant) and sorghum variety (V1 is the Soper 9 variety, V2 is the SR2401 variety, and V3 is the SR2404 variety). Based on the analysis of the research results, it was found that PGPR concentration and sorghum variety significantly influenced several sorghum growth parameters, including the number of leaves, leaf area, and stem diameter, but did not significantly differ in plant height. For sorghum yield parameters, concentration and variety significantly influenced 1000-seed weight, root length, panicle length, seeds per panicle, wet weight, and Brix content. The interaction between PGPR concentration and sorghum variety significantly influenced seeds per panicle. A PGPR concentration of 60 ml/l yielded higher results compared to other concentrations, and the SR2404 variety had a significant effect on all observed parameters. It is hoped that this study can serve as a reference and guideline for farmers and the general public in determining the variety and PGPR concentration to be used in sorghum cultivation on dry land.
RESPON PERTUMBUHAN SERTA PRODUKSI TANAMAN SORGUM (Sorghum Bicolor (L.) Moench) TERHADAP PEMBERIAN NPK 16-16-16 DAN PUPUK HAYATI MIKORIZA DI LAHAN KERING LOMBOK UTARA Putri, Fadila Rahmatika; Suwardji, Suwardji; Fahrudin, Fahrudin
AGROTEKSOS, Jurnal Ilmiah Ilmu Pertanian Vol 35 No 1 (2025): Jurnal Agroteksos April 2025
Publisher : Fakultas Pertanian Universitas Mataram

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.29303/agroteksos.v35i1.1287

Abstract

Tanaman sorgum merupakan salah satu jenis tanaman serelia yang memiliki potensi besar untuk dikembangkan di Kabupaten Lombok Utara karena memiliki kemampuan daya adaptasi yang luas, toleran terhadap kekeringan, serta cukup tahan terhadap gangguan hama dan penyakit. Tujuan dari penelitian ini adalah untuk mengetahui respon dari kombinasi pupuk NPK 16-16-16 dan pupuk hayati mikoriza MycoGrow terhadap pertumbuhan dan produksi hasil tanaman sorgum varietas soper 9. Penelitian ini dilaksanakan pada bulan Januari - Juni 2024. Rancangan percobaan pada penelitian ini menggunakan Rancangan Acak Kelompok dengan 7 perlakuan, P0 (tanpa pupuk/kontrol), P1 (pupuk NPK 200 kg/ha + pupuk hayati mikoriza mycogrow 1 gr/tan), P2 (pupuk NPK 200 kg/ha + pupuk hayati mikoriza mycogrow 1,5 gr/tan), P3 (pupuk NPK 200 kg/ha + pupuk hayati mikoriza mycogrow 2 gr/tan), P4 (pupuk NPK 200 kg/ha + pupuk hayati mikoriza mycogrow 2,5 gr/tan), P5 (pupuk NPK 200 kg/ha + pupuk hayati mikoriza mycogrow 3 gr/tan), P6 (pupuk NPK 200 kg/ha + pupuk hayati mikoriza mycogrow 3,5 gr/tan). Setiap perlakuan diulang sebanyak 3 kali sehingga diperoleh 21 unit percobaan. Hasil penelitian ini menunjukkan pengaruh kombinasi pupuk NPK 16-16-16 dan pupuk hayati mikoriza MycoGrow memberikan pengaruh yang signifikan terhadap, tinggi, diameter batang, jumlah daun, bobot berangkasan dan produksi hasil biji 6,52 (ton/ha) pada tanaman sorgum soper 9, dilahan kering Lombok Utara.
Perubahan Sifat Kimia Tanah Tercemar Merkuri Dengan Berbagai Modifikasi Pemberian Biochar Dan Tanaman Akar Wangi (Vetiveria zizanioides (L.) Aprianti, Irma; Suwardji, Suwardji; Sukartono, Sukartono; Mulyati, Mulyati; Kusnarta, IGM.
JURNAL SAINS TEKNOLOGI & LINGKUNGAN Vol. 10 No. 2 (2024): JURNAL SAINS TEKNOLOGI & LINGKUNGAN
Publisher : LPPM Universitas Mataram

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.29303/jstl.v10i2.613

Abstract

The aims of this research is to determine changes in the chemical properties of mercury-contaminated soil with various modifications in the application of corn cob biochar and vetiver grass (Vetiveria zizanioides (L.). This research used an experimental method with an ex-situ remediation approach which was carried out from October 2023 to January 2024 in greenhouse. Sampling of mercury-contaminated soil was carried out on former traditional gold mining land in Segubuk Hamlet, Kuang Village, Taliwang Sub-District, West Sumbawa Regency. Soil sampling was taken from 13 locations determined by purposive sampling and carried out using a soil drill. Soil pH H2O, C-organic and CEC as well as analysis of the total concentration of mercury (Hg) in the soil were analysed before and after the experiment. The results showed that the application of corn cob biochar alone and corn cob biochar planted with vetiver grass (Vetiveria zizanioides (L.) had a significant effect) on changes in soil chemical properties and was effective in reducing the concentration of mercury (Hg) in the soil. Corn cob biochar application can improve soil chemical properties by increasing soil pH, organic C, and soil CEC. On the other hand, the release of H+ ions from the carboxyl functional group (-COOH) in corn cob biochar has the opportunity to form complexes with heavy metal ions so that it can reduce their concentration of mercury in the soil.
Study of Land's Carrying Capacity on The Availability and Need For Staple Foods in The City of Mataram Rusdiani, Rusdiani; Suwardji, Suwardji; Mulyati, Mulyati
Jurnal Biologi Tropis Vol. 24 No. 2 (2024): April - Juni
Publisher : Biology Education Study Program, Faculty of Teacher Training and Education, University of Mataram, Indonesia

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.29303/jbt.v24i2.6909

Abstract

Increasing the area of rice fields, harvest area, planting area, rice productivity and rice production can increase the availability of staple foods. This aims of this study 1) to analyze the carrying capacity of agricultural land in supporting food security in Mataram City. 2) to determine the availability and need for staple food (rice) in Mataram City. The research method used quantitative descriptive methods using secondary data from the Central Statistics Agency of City of Mataram and other related agencies in Mataram City in 2023. Data was analysed using land carrying capacity analysis and analysis of the availability and demand for rice in the City of Mataram. The results of the research showed that 1) the carrying capacity of agricultural land in the City of Mataram is 0.0231 or less than 1, meaning that the need for rice in the City of Mataram has not been able to be met from the existing agricultural land area and the current rice production, 2) The availability of rice in the City Mataram in 2023 is 13,510.83 tonnes, while the demand for rice is 67,980.76 tonnes, resulting in a shortage (deficit) of rice demand of 54,469.93 tonnes or a deficit in rice availability of 400%.
The Use of Biochard for Improving Soil Quality and Environmental Services Kusman, Hardi; Mulyati, Mulyati; Suwardji, Suwardji
Jurnal Biologi Tropis Vol. 24 No. 4 (2024): Oktober - Desember
Publisher : Biology Education Study Program, Faculty of Teacher Training and Education, University of Mataram, Indonesia

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.29303/jbt.v24i4.7199

Abstract

Biochar is recognized as a versatile and sustainable tool for improving agricultural and environmental conditions due to its unique physicochemical properties, such as soil fertility, nutrient retention and water holding capacity. The presence of biochar, which contains stabilized carbon, not only has a positive impact on plant growth and crop yields through microbial activity, but can also act as a sorbent to remove contaminants from soil and water. However, the use of biochar in soil and its effects on ecosystem services depend on several factors. This article explores the impact of biochar use on soil and the potential to address ecosystem service challenges by improving soil composition, increasing access to water, and removing contaminants, all to promote sustainable agriculture. The method of this article consists of a literature review by collecting data from various sources such as scientific journals, books and seminar proceedings. The data obtained were qualitatively analyzed to review and identify the information, resulting in a critical and comprehensive explanation and discussion of the role of biochar in improving soil and environmental quality for environmental services. The results of the literature review are presented in the form of a coherent, systematic and critical narrative. The results of this article review indicate that on-farm biochar application contributes significantly to climate change mitigation through various mechanisms, including biochar's ability to sequester carbon, improve soil quality, and minimize greenhouse gas emissions.
Potential of Black Rice Mutants (M4) Through Genetic Parameters to Develop Superior Drought-Resistant Varieties Irmayani, Irmayani; Fauzi, Taufik; Sudharmawan, A. A. Ketut; Mulyati, Mulyati; Suwardji, Suwardji
Jurnal Biologi Tropis Vol. 24 No. 3 (2024): July - September
Publisher : Biology Education Study Program, Faculty of Teacher Training and Education, University of Mataram, Indonesia

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.29303/jbt.v24i3.7208

Abstract

Rice plays an important role in meeting carbohydrate requirement and calorie needs to ensure food security. However, in recent years, rice productivity has decreased due to land conversion and climate change such as El Niño. The productivity of drought-resistant rice can be increased through breeding. Genetic diversity and heritability are important genetic parameters in the plant breeding process. Information about genetic diversity and heritability helps determine genetic progress through selection. This research aims to examine the potential genetic diversity and heritability of several mutant lines (M4) of black rice (G10) in order to develop superior rice varieties that are adaptive to dry land. In this research, we used experimental methods using a Randomized Block Design (RBD), calculating the value of the Genetic Diversity Coefficient (GDC) and heritability between quantitative characters. The results of narrow genetic research were found in the characteristics of the number of productive tillers and weight of 100 grains, while high heritability was found in the characters of plant height, moderate heritability was found in the total number of tillers, panicle length, number of empty grains per panicle, and weight of 100 grains. Overall, this research succeeded in identifying mutant lines (M4) of black rice (G10) which have the potential to be developed into superior varieties, especially for cultivation in dry land.
Potential of Arbuscular Mycorrhizal Fungi to Overcome Drought Stress and Low Nutrient Availability in Dryland Farming Yunita, Mira; Fauzi, Taufik; Suwardji, Suwardji; Sudharmawan, A. A. Ketut; Mulyati, Mulyati
Jurnal Biologi Tropis Vol. 24 No. 3 (2024): July - September
Publisher : Biology Education Study Program, Faculty of Teacher Training and Education, University of Mataram, Indonesia

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.29303/jbt.v24i3.7209

Abstract

There is an increasing rate of land conversion in Indonesia that can threaten food self-sufficiency. Therefore farmers and the government must expand agriculture by developing agriculture on potential available lands such as drylands. However, drylands in Indonesia have low productivity due to low water and nutrient availability. This article aims to determine the potential use of arbuscular mycorrhizal fungi to overcome drought stress and low nutrient availability in drylands. The method used in writing this article is a desk literature study conducted by collecting data from various sources, such as scientific journals, seminar proceedings, and online reports available in related government office in West Nusatenggara Province. The data obtained were then analyzed qualitatively by identifying, reviewing, and synthesizing information to produce a complete and comprehensive explanation. The results of the literature study showed that arbuscular mycorrhizal fungi have the potential to overcome drought stress and low nutrient availability in drylands. The use of arbuscular mycorrhizal fungi can be a sustainable solution to increase agricultural productivity in drylands.
Potential UV (Ultra Violete) Plastic Shade in Increasing Soil Fertility and Controlling Whitefly Pest in Dry Land Husni, Ika Rauhul; Fauzi, Taufik; Suwardji, Suwardji; Sudharmawan, A. A. Ketut; Mulyati, Mulyati
Jurnal Biologi Tropis Vol. 24 No. 3 (2024): July - September
Publisher : Biology Education Study Program, Faculty of Teacher Training and Education, University of Mataram, Indonesia

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.29303/jbt.v24i3.7210

Abstract

The whitefly is a pest that frequently infests cultivated plants, causing both direct and indirect damage that can significantly reduce crop yields. In addition to whitefly infestations, declining soil fertility is another factor that can lead to decreased production. One potential solution to these issues is the use of UV plastic shade. This method can help reduce the population of whitefly pests. This article aims to explore the effectiveness of UV plastic shade in enhancing soil fertility and reducing whitefly presence in arid regions. The research methodology employed is descriptive, utilizing a literature review of sources such as scientific articles, books, journals, discussions, and previous research findings. UV plastic shade has been found to increase the availability of nitrogen and phosphorus in the soil, thereby promoting soil fertility and plant growth. Additionally, UV plastic shade can reduce whitefly populations in dry areas by disrupting their life cycle and behavior.
The Potential of Providing Chicken Manure in Improving Soil Health in Dry Lands Safta, Laila; Fauzi, Taufik; Suwardji, Suwardji; Sudharmawan, A. A. Ketut; Mulyati, Mulyati
Jurnal Biologi Tropis Vol. 24 No. 3 (2024): July - September
Publisher : Biology Education Study Program, Faculty of Teacher Training and Education, University of Mataram, Indonesia

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.29303/jbt.v24i3.7211

Abstract

Despite having a considerable potential area, the optimal utilization of dry land is challenging due to the generally low soil moisture content and fertility of dry land in Indonesia. This is evidenced by the intrinsically low organic matter content in dryland soils. Therefore, this article aims to provide information on the potential application of chicken manure to enhance soil fertility and health or to rehabilitate suboptimal dry lands in Indonesia. The methodology used in this article is qualitative, based on a literature review. One approach to improving the condition of dry land in Indonesia is the application of chicken manure, which acts as a soil conditioner and enhances overall soil fertility and health. The results of the study indicate that using chicken manure on dry land can increase crop production, thereby positively correlating with the profits of dry-land farmers.
Potential Combination of Phytoremediation Plants and Compost in Remediation of Hg in Ex-Gold Mine Soil Contaminated Mercury (Hg) Amri, Amarrusli Ali; Fauzi, Taufik; Sudharmawan, A. A. Ketut; Mulyati, Mulyati; Suwardji, Suwardji
Jurnal Biologi Tropis Vol. 24 No. 3 (2024): July - September
Publisher : Biology Education Study Program, Faculty of Teacher Training and Education, University of Mataram, Indonesia

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.29303/jbt.v24i3.7243

Abstract

Heavy metal mercury pollution in the environment can have negative impacts on both surrounding ecosystems and human health. Sources of mercury pollution often come from mining activities, particularly from many unlicensed gold mines (PETI) that use the mercury amalgamation method to extract gold. Due to the persistent, bioaccumulative, and toxic nature of mercury, contamination in the soil has increased. One effort to reduce mercury toxicity is the application of absorption methods using phytoremediation plants and compost as regulating factors. The aim of this study is to review sources of information related to the use of phytoremediation plants and the application of compost as remediators to clean mercury (Hg)-contaminated soil. To reduce levels of heavy metal contamination, plants employ five phytoremediation mechanisms: phytoextraction, phytostabilization, rhizofiltration, phyto degradation, and phytovolatilization. Therefore, selecting hyperaccumulator plants that have the ability to accumulate mercury (Hg) at levels 100 times higher than ordinary plants is crucial for effective remediation. Additionally, the use of compost as a source of organic material can enhance mercury mobility. The addition of organic materials such as compost can increase C organic content, cation exchange capacity (CEC), pH, and Hg-chelate formation, thereby maximizing mercury absorption by plants. This combination has a positive impact on reducing mercury levels in the soil and is environmentally safe.
Co-Authors A. A. Ketut Sudharmawan A. Farid Hemon 2) A.A Sudharmawan A.A. Ketut Sudharmawan AA Sudharmawan, AA AB, Baharuddin Abdul Syukur Abdul Wahid Zakaria Abdus Syakur Assopi Agil Al Idrus Agus Suroso Ahlul Fikri Amrul Huda Ahmad Raksun Ahmad Suriadi Alkhairi, Muhammad Alvin Janitera Amri, Amarrusli Ali Amuddin -, Amuddin Andika Nellsen Saputra Anisah Resty U Annisa Suryanti Aprianti, Irma Aqshaldi Azayaka Al Majid Ardianti, Risma Arum Dewi, Pervitara Aryabakti, Lalu Arifin Aryadi, Irwin Baghdad Cahyo Nggolo Baharuddin Baharuddin Baharuddin Baharuddin Baiq Sagia Febrina Iswara Bambang Dipo Kusumo Bambang Hari Kusumo Caesario Susmadi M Dhea Anggreny Dewatary Diah Miftahul Aini Dita Apliza Edwin, Pratama Eko Basuki, Eko Endah - Herlina Eviani, Sri Fadli Fadli Fahrudin Fahrudin Fauzi, M Taufik Fauzi, Taufik Febriana Sri Wahyuni Feby Umaroh I Firda Salzabilla Syehan Firman Abadi Saputra Hadromy Hawari Hamkary Salam, Riza Hanipah Hapsari Hurum, Puji Husni Idris Husni, Ika Rauhul I Dewa Gede Jaya Negara I Gusti Made Kusnarta I Gusti Putu Muliarta Aryana I Made Sudantha I Wayan Sudika Ibrahim Ilwati, Uun Irmayani Irmayani Irniatun Hasanah Irwin Aryadi Islami, Muhammad Dinul Ismail Yasin Isnaniar Rahmatul Azizah Izomil Fathoni Jayus Kharisma Hendra Joko Priyono Khaerun Nisa Kusman, Hardi Kusnarta, IGM. Lalu Arifin Aria Bakti Lalu Arifin Aria Bakti Lalu Bahrul Ilmi Larassaty Octaprama Lestari Ujianto, Lestari Lukmanul Hakim Luwy Sartika M Thoriq Panji A M Zul Qurnain M. Erik Panji Dwi Satya M. Fahed Ramadhan M. Harjiman Tamimi M. Sarjan, M. M. Taufik Fauzi M. Taufik Fauzi Mahardhika, Baiq Eliza Prizma Mansur Ma’shum Mariani Mariani Mariani Mariatul Quro Maulidyasari Maya Rizki A Mega Utami Regina Putri Mimi Atiatun R Muhamad Darul Amimi Aziz Muhammad Dinul Islami Muhammad Khiorul A Muhammad Sarjan Muhammad Syaihul Ahzami Mulyati Mulyati Mulyati Mulyati Mulyati Mulyati Mulyati mulyati mulyati Nadira Nahendra, Yusrisal Nani Herawati Ni Nengah Anatasya Sabaniartha Nopiana Fitri Nurfaizah Nurlina Nurrachman Nurul Putri P Padusung Padusung Padusung, Padusung parman parman Parta Tanaya Pramadya Sudantha Puji Hapsari Hurum Putri, Fadila Rahmatika Rachmat Agumdhana Rasyda, Riezka Zuhriatika Rengga Astrada Ria Rustiana Rida Olina C Ridha Ayumnuazmi Riezka Zuhriatika Rasyda Rifani Aulia Safitri Rinda Astri Vianti Rindu Salsabila Ulayya Rudy Fermana Rusdiani, Rusdiani Sabariyah Sadmaka 1) Safta, Laila Salta, Legina Aldaeska Selvia, Siska Ita Sifa Rajasmin Luxanti Siska Ita Selvia Siti Raihanun Siti Rohmaniati, Baiq Sofia Dianti Y Sopia Hidayati Sri Tejowulan Sudarmawan, AA Ketut Sudharmawan, A. A. Ketut Sukartno Sukartono Sukartono Sukartono Sukartono Sukartono Sukartono Sulfaida Pratami Suparman Tara Gita Anggereni Taslim Sjah Tejo Wulan Tejo Wulan Tribhuana Tungga Dewi Ulayya, Rindu Salsabila U’ul Efriyanti Prayoba Verina Januati Wargadalam W.H. Utomo Wayan Wangiyana Yasmin Afra Anbary Yudi Apriyan Yunita, Mira Yusrisal Nahendra Zaenal Arifin Zubaidi, Akhmad Zuhdiyah Matienatul Iemaaniah