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All Journal Jurnal Ilmu Pertanian Indonesia Jurnal Penelitian Saintek Jurnal Biologi Udayana Agrikultura Berkala Ilmiah Pertanian Agrifor : Jurnal Ilmu Pertanian dan Kehutanan Dharmakarya : Jurnal Aplikasi Ipteks Untuk Masyarakat Journal of Degraded and Mining Lands Management Jurnal Agro Kultivasi Jurnal Agrotek Tropika Jurnal Agrotek Indonesia Soil REns
Oviyanti Mulyani
Departemen Ilmu Tanah Dan Manajemen Sumberdaya Lahan Fakultas Pertanian Universitas Padjadjaran
Agriculture, Biological Sciences & Forestry Arts Humanities Biochemistry, Genetics & Molecular Biology Chemical Engineering, Chemistry & Bioengineering Decision Sciences, Operations Research & Management Economics, Econometrics & Finance Engineering Environmental Science Languange, Linguistic, Communication & Media Public Health

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Combination Effect of NK and P Fertilizers on Soil Available-K, K Absorption, and Sweet Corn Productivity in Inceptisols Emma Trinurani Sofyan; Muhammad Amir Solihin; Oviyanti Mulyani; Annisya Salsabilla; Asty Nesya; Irwandhi, Irwandhi
Jurnal Ilmu Pertanian Indonesia Vol. 30 No. 1 (2025): Jurnal Ilmu Pertanian Indonesia
Publisher : Institut Pertanian Bogor

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.18343/jipi.30.1.187

Abstract

One factor affecting sweet corn's (Zea mays saccharata Sturt.) productivity refers to soil fertility and proper fertilization. This study aimed to determine the optimal combination of NK and P fertilizer doses to enhance the growth and yield of corn grown on Inceptisols. This research was conducted at the Soil Chemistry and Plant Nutrition Experimental Field, Faculty of Agriculture, Universitas Padjadjaran. The Randomized Block Design consisted of 10 treatments with three replicates each. The treatments included: A, control; B, standard NPK; C, ¼ dose NK + 1 P + ½ N; D, ½ dose NK + 1 P + ½ N; E, ¾ dose NK + 1 P + ½ N; F, 1 dose NK + 1 P + ½ N; G, 1¼ dose NK + 1 P; H, 1 dose NK; I, ½ dose NK + ½ single N,P,K; and J, ¾ dose NK + ¼ single N,P,K. The results showed that the combination of NK and P fertilizers significantly affected the growth and yield of sweet corn. The treatment with ¾ NK + 1 P + ½ N had a notable impact on cob weight (0.33 kg/cob), cob diameter (5.05 cm), and cob length (21.2 cm). This treatment also increased K absorption to 34.49, available soil K to 2.45 cmol kg-1, and the sweetness level of corn to 13.56%. This study provides new recommendations for corn fertilization to improve the growth and yield on Inceptisols. Keywords: optimal fertilizer dosage, corn growth, corn productivity, nutrient uptake
AZOTOBACTER AND CHEMICAL FERTILIZER FOR IMPROVING GROUNDNUT YIELD IN FIELD EXPERIMENT Reginawanti Hindersah; Agung Muhammad Yusuf; Dewikusuma Ikhsani Adhiningtyas; Diyan Herdiyantoro; Oviyanti Mulyani; Pujawati Suryatmana
Jurnal Agrotek Tropika Vol 12, No 4 (2024): JURNAL AGROTEK TROPIKA VOL 12, NOVEMBER 2024
Publisher : Departement of Agrotechnology, Agriculture Faculty, Universitas Lampung

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.23960/jat.v12i4.8395

Abstract

Biofertilizer inoculation is a novel and sustainable approach for reducing chemical fertilizer dose. The nitrogen-fixing Azotobacter is a prominent rhizobacteria used in biofertilizer formulation. A field experiment was aimed to observe the N availability, N uptake, nodulation, and growth and yield of groundnuts grown with A. chroococcum liquid inoculant and reduced dose of NPK fertilizer. The field experiment was arranged in a Randomized Block Design to test eight combination treatments of A. chroococcum inoculant doses (2 and 3 L/ha) and NPK fertilizer doses (75, 150 and 300 kg/ha). Azotobacter and NPK application did not affect plant height at two and three weeks after sowing. Groundnuts treated with 2 L/ha Azotobacter combined with 150 kg/ha NPK had more NO3- in soil, N uptake, and root dry weight; its pod number and weight per plot increased 110% and 40% than that in plot received 2L/ha Azotobacter and 300 kg/ha NPK respectively. The experiment found that A. chroococcum shall replace part of NPK fertilizer for growing groundnut in Inceptisols soil order. 
Smart-dose microboost: micronutrient in order to enhance chili growth and yield in tropical farming systems: Smart-dose microboost: mikronutrien untuk meningkatkan pertumbuhan dan hasil cabai pada sistem pertanian tropis Mulyani, Oviyanti; Sudirja, Rija; Susanto, Agus; sutari, Wawan
Jurnal AGRO Vol. 12 No. 1 (2025)
Publisher : Jurusan Agroteknologi

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.15575/j.agro.48701

Abstract

Despite the fact that micronutrients are crucial for the growth, metabolism, and crop yield of plants, they are required in relatively small proportions. The recent advancements in agriculture have resulted in the development of biostimulant products that are abundant in micronutrients which is advantageous. The objective of this investigation was to evaluate the potential of micronutrient-enriched biostimulants (MB) to enhance the quality characteristics of chili fruits. This study was conducted at Jatinangor, West Java. The experimental plots were laid out in a Randomized Block Design (RBD) with seven treatments and repeated four times, so the total number of treatments was 28 units. The treatments consist of farmer practice and doses of 0.75; 1.0; 1.5; 2.0; 2.5 and 3.0 L ha-1 MB. The results of this experiment indicated that the treatments with doses of 2.0–3.0 L ha-1 were consistently preferable in terms of fruit quality, yield, and growth. Plants that were more productive, capable of grading fruit, and had a slightly extended shelf life after harvest were the final result of the biostimulant product, which contained micronutrients. The farmer's practice consistently failed to meet the standards of all the treated sites. The combination of biostimulants and micronutrients significantly enhanced the physiological and reproductive functions of chilies. ABSTRAK Mikronutrien, meskipun dibutuhkan dalam jumlah yang kecil daripada makronutrien, penting untuk perkembangan tanaman, fungsi metabolisme, dan produktivitas tanaman. Perkembangan terkini dalam bidang pertanian telah menghasilkan produk biostimulan yang kaya akan mikronutrien yang sangat penting. Tujuan dari penelitian ini adalah untuk menilai potensi biostimulan yang diperkaya mikronutrien (MB) dalam meningkatkan kualitas buah cabai. Panelitian ini dilakukan di Jatinangor Sumedang, Jawa Barat. Plot percobaan disusun dalam Rancangan Acak kelompok (RAK) dengan tujuh perlakuan dan diulang empat kali, sehingga total perlakuan adalah 28 unit. Perlakuan tersebut terdiri dari metode konvensional; dosis biostimulan yang diperkaya mikronutrien (0,75; 1,0; 1.5; 2,0; 2,5 and 3,0 L ha-1 MB). Hasil percobaan ini menunjukkan bahwa perlakuan dengan dosis 2,0–3,0 L ha-1 adalah yang paling konsisten unggul di seluruh parameter pertumbuhan, hasil dan kualitas buah. Produk biostimulan dengan tambahan mikronutrien membuat tanaman lebih kuat, lebih produktif, lebih baik dalam kualitas buah, dan memperpanjang masa simpan setelah panen. Dibandingkan dengan semua yang diberi perlakuan pupuk mikronutrien dan biostimulan, perlakuan konvensional memberikan respon yang paling kecil. Secara umum, penambahan mikronutrien dan biostimulan secara bersamaan dapat memberikan dampak besar pada peningkatan fungsi fisiologis dan reproduksi tanaman cabai.   Kata kunci: Biostimulan, Cabai, Keberlanjutan, Produktivitas
Enhancing sustainable rice production through organic plus fertilizer in irrigated paddy fields Mulyani, Oviyanti; Sofyan, Emma Trinurani; Citraresmini, Ania; Joy, Benny; Husen, Anne Yuliana
Kultivasi Vol 24, No 2 (2025): Jurnal Kultivasi
Publisher : Universitas Padjadjaran

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.24198/kultivasi.v24i2.64985

Abstract

Sustainable rice farming is increasingly threatened by declining soil fertility, excessive reliance on chemical fertilizers, and environmental degradation from intensive agricultural practices. There is an urgent need for innovative organic fertilizer products that combine organic materials with macro and micronutrient enhancements to restore soil health effectively. This research aimed to evaluate the effect of organic plus fertilizer (OPF) as a sustainable soil amendment to improve soil nutrient status, increase paddy productivity, and enhance overall soil health. The experiment was conducted using a Randomized Block Design (RBD) with nine treatments: one recommended OPF dose, six combinations of NPK (75 – 100%) and OPF (75 – 150%), one recommended conventional NPK dose, and one control. Variables observed included plant growth, yield, and yield components, total soil nitrogen, and plant uptake of N, P, and K. Results indicated that OPF combined with NPK significantly increased plant height (29.13 – 31.38%) and number of panicles (57.89%) compared to the control. Nutrient uptake improved for nitrogen (23.68%) and potassium (15.96 – 21.28%), although no significant improvement was observed for phosphorus. Yield parameters showed an 81.97%–118.50% increase over the control. The combinations of 75% NPK + 150% OPF, 100% NPK + 75% OPF, and 100% NPK + 100% OPF produced taller plants, higher yields, greater nutrient uptake, and lower residual nitrogen in the soil. For optimal rice yield and soil health, integrated application of OPF with either a full or 75% NPK dose is recommended.
Pengembangan Kesehatan Tanah Berbasis Zeolit: Strategi Perbaikan Sifat Kimia Tanah Secara Berkelanjutan Mulyani, Oviyanti; Sudirja, Rija; Solihin, Eso; Sara, Dirga Sapta; Husein, Anne Yuliana
Soilrens Vol 23, No 1 (2025)
Publisher : Dept Ilmu Tanah & Sumberdaya Lahan Fakultas Pertanian Universitas Padjadjaran

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.24198/soilrens.v23i1.66072

Abstract

These chemical residues affect the natural balance of soil biota, leading to a decrease in soil pH, areduction in Cation Exchange Capacity (CEC), and a general decline in land productivity. If not treatedpromptly, this damage could harm health and food sustainability. The application of eco-friendlyproducts in modifying soil characteristics, including high-quality zeolite, remains common today. Thisstudy aims to examine the effects of zeolite application on the dynamics of soil chemical characteristicsto promote the development of a sustainable agricultural system. This study employed a RandomizedBlock Design (RBD) containing six different treatments such as five varying recommendation dosagesof zeolite (0.5, 1, 1.5, 2, and 2.5) and one control treatment devoid of zeolite for comparative analysis.Each treatment was reproduced three times, yielding a total of eighteen experimental plots. Soilchemical parameters (pH and CEC) are the primary focus of this experiment. The study's resultsindicated that during the last weeks of testing, applying 1.5 to 2 doses of zeolite proved to be the mostbeneficial, as it continuously raised the pH and CEC levels. Both Pearson and Spearman tests indicatethat the correlation between variables improves from first week to week fourth week. This suggeststhat the effects of the treatment, possibly zeolite application or an alternative treatment, start afterseveral weeks. The results of this investigation indicate that incubation time in zeolite applicationimportant for exhibits effective buffering properties and functions efficiently, significantly improvingthe chemical properties in soil.
PENGARUH PUPUK Si DAN N, P, K TERHADAP KANDUNGAN Si DAN HASIL TANAMAN JAGUNG MANIS (Zea mays L. Saccaharata) Sofyan, Emma Trinurani; Mulyani, Oviyanti; Agnia, Ilma; Rahmi, Abdul
Agrifor : Jurnal Ilmu Pertanian dan Kehutanan Vol 23, No 1 (2024): Maret 2024
Publisher : Universitas 17 Agustus 1945 Samarinda

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.31293/agrifor.v23i1.7528

Abstract

Pertumbuhan dan produksi tanaman dipengaruhi oleh berbagai karakteristik tanah terutama kesuburan tanah yang berkaitan dengan ketersediaan unsur hara. Pengelolaan kesuburan  tanah harus diperhatikan agar tanah dapat menyokong pertumbuhan dan hasil tanaman yang tinggi dalam jangka waktu yang lama. Percobaan ini bertujuan untuk mencari dosis pupuk Si terbaik terhadap perubahan kandungan unsur hara tanah, pertumbuhan tanaman dan hasil panen tanaman jagung manis. Percobaan ini dilaksanakan di Kebun Percobaan Laboratorium Kimia Tanah dan Nutrisi Tanaman Fakultas Pertanian, Universitas Padjadjaran, Jatinangor, Sumedang pada bulan Mei sampai Agustus 2021. Rancangan penelitian yang digunakan yaitu Rancangan Acak Kelompok (RAK) yang terdiri dari sembilan perlakuan dan diulang tiga kali, yaitu: kontrol; N, P, K rekomendasi; ¼ dosis pupuk Si + 1 dosis N, P, K rekomendasi; ½ dosis pupuk Si + 1 dosis N, P, K rekomendasi; ¾ dosis pupuk Si + 1 dosis pupuk N, P, K; 1 dosis pupuk Si + 1 dosis pupuk N, P, K; 1 ¼ dosis pupuk Si + 1 dosis pupuk N, P, K; 1 ½ dosis pupuk Si + 1 dosis pupuk N, P, K; dan 1 ¾ dosis pupuk Si + 1 dosis pupuk N, P, K. Hasil percobaan menunjukkan bahwa perlakuan 1 ½ dosis pupuk Si + 1 dosis pupuk N, P, K mampu memberikan pengaruh terbaik dalam meningkatkan kandungan Si tanah dan meningkatkan hasil panen tanaman jagung manis.
Subtitusi Pupuk Hayati Cair terhadap Pertumbuhan dan Hasil Jagung Manis (Zea mays L, Saccharata) Varietas Secada F1 Triono Bambang Irawan; Nisa Budi Arifiana; Rahmawati; Abdurrahman Salim; Anni Nuraisyah; Satria Indra Kusuma; Emma Trinurani Sofyan; Yuliati Mahfud; Oviyanti Mulyani
Berkala Ilmiah Pertanian Vol. 8 No. 4 (2025): November 2025 (in press)
Publisher : Jember University Press

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.19184/bip.v8i4.53732

Abstract

Pupuk merupakan bahan mengandung unsur hara yang diberikan ke media tanam untuk memenuhi kebutuhan hara untuk tanaman. Pupuk hayati cair merek "Basiscrop" merupakan salah satu produk pupuk hayati cair yang diproduksi oleh CV. Basiscrop Indonesia. Tujuan dari penelitian ini untuk mengetahui substitusi pupuk hayati cair "Basiscrop" dengan NPK terhadap pertumbuhan dan hasil tanaman jagung manis (Zea mays L. Saccharata) varietas Secada F1. Pengujian dilakukan pada bulan Januari hingga Mei 2025 di Lahan Percobaan Kimia Tanah dan Nutrisi Tanaman, Fakultas Pertanian Universitas Padjadjaran, Jatinangor. Penelitian ini menggunakan rancangan penelitian Rancangan Acak Kelompok (RAK) yang terdiri atas delapan perlakuan, yaitu satu kontrol (tanpa pupuk), satu perlakuan pupuk rekomendasi, satu perlakuan dengan 3/4 dosis pupuk rekomendasi, dan enam kombinasi dosis pupuk hayati cair "Basiscrop" dengan pupuk anorganik. Seluruh perlakuan diberikan ulangan sebanyak tiga kali. Hasil penelitian pada 8 perlakuan memberikan hasil pertumbuhan dan komponen hasil terbaik pada perlakuan 1 dosis N (350 kg/ha), 1 dosis P (100 kg/ha), 1 dosis K (50 kg/ha), dan 1 dosis pupuk hayati cair "Basiscrop" (30 kg/ha).  
Co-Authors Abdul Rahmi ABDUL RAHMI Abdurrahman Salim Abraham Suriadikusumah Agnia, Ilma Agung Muhammad Yusuf Agus Susanto Ai Ening Rostini Ania Citraresmini Anne Nurbaity Anne Nurbaity Anni Nuraisyah Anni Yuniarti Annisya Salsabilla Anny Yuniarti Apong Sandrawati Asty Nesya Aten Komarya Atih Winingsih Benny Joy Benny Joy Benny Joy Benny Joy Betty Natalie Fitriatin Dewikusuma Ikhsani Adhiningtyas Dilla Amelia Dirga Sapta Sara DIYAN HERDIYANTORO E Hidayat Salim Emma T. Sofyan Emma Trinurani Sofyan Encep Hidayat Salim Eso Solihin Fauziah, Nicky Oktav Feni Siti Fauziah2 Fiky Yulianto Wicaksono Fiky Yulianto Wicaksono Firda Firda Harry Rum Haryadi Husein, Anne Yuliana Husen, Anne Yuliana Ilma Agnia Irwandhi, Irwandhi M. I. Janitra M. I. Janitra, M. I. Marisa Puspita Dewi Mohamad Dion Tiara Muh. Yasin Muhammad Agi Pratama Muhammad Amir Solihin Nisa Budi Arifiana Probo Condrosari Pujawati Suryatmana Rahmawati Reginawanti Hindersah Remona, Rizkiyani Rija Sudirja Rina Devnita Satria Indra Kusuma Siska Rasiska Solihin, Muhammad Amir Syarif Hidayat Triono Bambang Irawan Wawan Sutari Yudithia Maxiselly Yudithia Maxiselly, Yudithia Yulianti Machfud Yuliati Machfud Yuliati Machfud Yuliati Machfud Yuliati Machfud, Yuliati Yuliati Mahfud