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All Journal Caraka Tani: Journal of Sustainable Agriculture Agro Bali: Agricultural Journal Nusantara Science and Technology Proceedings Agrocentrum
Wanti Mindari
Agrotechnology Study Program, Faculty Of Agriculture, Universitas Pembangunan Nasional “Veteran” Jawa Timur, Indonesia
Agriculture, Biological Sciences & Forestry Chemical Engineering, Chemistry & Bioengineering Economics, Econometrics & Finance Engineering Law, Crime, Criminology & Criminal Justice Materials Science & Nanotechnology Medicine & Pharmacology

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Effectiveness of Ameliorant Humic Acid and Silica Based on Availability of Sandy Soil Nitrogen for Rice Siswanto; Wanti Mindari; Setyo Budi Santoso; Rusyla Dwi Rahayu
Nusantara Science and Technology Proceedings International Seminar of Research Month 2021
Publisher : Future Science

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.11594/nstp.2022.2467

Abstract

Sandy soils generally have high macro pores and a low ability to provide water and plant nutrients. This condition is caused by the soil matrix which has almost no negative charge, so there is no strong adsorption capacity for ions and water. The next impact is that nutrients and water are easily lost because they are washed or evaporated. Nitrogen loss has been reported to reduce rice production by 6.10%. The purpose of the study was to examine the effectiveness of ameliorants based on humic acid and silica in improving nutrient availability and sandy soil water. Humic acid from compost and silica from husk charcoal is expected to increase the negative charge of the soil (cation exchange capacity) so that it can adsorb and fix (chelate) nutrient ions such as nitrogen. The study was structured using a factorial Completely Randomized Design (CRD). The first factor is silica dose with a level of 0 ton/ha, 0.5 ton/ha, 1 ton/ha, and 1.5 ton/ha. The second factor is the dose of humic acid with a level of 0 kg/ha, 20 kg/ha, 40 kg/ha, and 60 kg/ha. Rice plants are used as growth indicators. Observation parameters include the availability of N in the soil, the growth of rice plants which includes plant length and the number of tillers, and plant chlorophyll. The results showed that the combination of humic acid and silica had no significant effect on plant length, the number of tillers, and nitrogen availability in the soil. However, it has a significant effect on plant chlorophyll.
Dampak Pemberian Bahan Organik dan Pasir terhadap Sifat Fisika Tanah Vertisol Bojonegoro Mahesa Fahmi Husein; Wanti Mindari; Setyo Budi Santoso
Agro Bali : Agricultural Journal Vol 6, No 2 (2023)
Publisher : Universitas Panji Sakti

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.37637/ab.v6i2.1176

Abstract

Sifat fisik vertisol kurang baik bagi pertumbuhan tanaman, karena akan mengembang apabila dikenai air, mengkerut dan keras apabila kering. Vertisol memiliki sifat kering yang mengakibatkan pergerakan akar menjadi terhambat. Perbaikan vertisol dapat dilakukan dengan penambahan pupuk organik, salah satunya kompos. Penelitian “Dampak Pemberian Bahan Organik dan Pasir terhadap Sifat Fisika Tanah Vertisol Bojonegoro” bertujuan untuk mengkaji perubahan sifat fisika vertisol akibat penambahan bahan organik dan pasir, dilaksanakan di lahan milik Fakultas Pertanian UPN “Veteran” Jawa Timur, Kecamatan Gunung Anyar, Kabupaten Surabaya pada bulan September-Oktober 2022. Penelitian disusun menurut Rancangan Acak Kelompok (RAK) faktorial, dengan satu faktor yang terdiri atas 4 macam bahan organik, dengan dosis yang sama yaitu 15 ton/ha-1. Keempat macam bahan organik tersebut adalah B0 = Kontrol; B1 = Kulit pisang + Kotoran sapi (10:1); B2 = Kompos seresah daun; B3 = Eceng gondok + kotoran sapi (1:1) dan faktor 2 merupakan 3 taraf pasir yaitu P0 = Kontrol; P1 = Pasir 20% berat media; P2 = Pasir 40% berat media. Data dianalisis menggunakan analysis of variance (ANOVA) untuk menentukan tingkat signifikansi secara statistika terhadap pengaruh macam bahan organik dan pasir terhadap parameter. Jika hasil dari ANOVA menunjukkan perbedaan signifikansi pada taraf 5%, maka dilakukan uji lanjut Beda Nyata Jujur (BNJ) untuk membandingkan antar perlakuan. Pengaruh kombinasi antara bahan organik dengan pasir berpengaruh secara nyata terhadap parameter permeabilitas, berat isi dan berat jenis. Pengaruh perlakuan macam bahan organik berpengaruh secara nyata terhadap parameter tekstur, permeabilitas dan berat jenis. Pengaruh perlakuan pasir berpengaruh secara nyata terhadap semua parameter.
Karakteristik Pupuk Organik Cair Berbasis Limbah Vinasse Melalui Teknologi Aktivasi : Characteristics Of Vinasse Waste-Based Liquid Organic Fertilizer Through Activation Technology Angga Handika Putra; Wanti Mindari; Purwadi Purwadi
Agrocentrum Vol. 1 No. 2 (2023): Agrocentrum
Publisher : Agriculture Faculty - UPN "Veteran Jawa Timur

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.33005/agrocentrum.v1i2.13

Abstract

Utilization of vinasse waste as POC has great potential in the agricultural sector. This is because there is an abundance of vinasse waste originating from the bioethanol industry sector. So action is needed so that vinasse waste can be utilized into a profitable product. This research aims to test the potential of vinasse waste if it is processed into POC. Apart from using vinasse waste as the main raw material, the formula also added organic ingredients such as straw ash, humate, husk charcoal and filter cake dregs which were fermented for 5 weeks. Based on the research results, the content of N, P, K and C-organic elements cannot comply with the 2019 Ministry of Agriculture Quality Standards. Meanwhile, the content of Na and pH elements is appropriate, but for Fe only the F2 and F4 T1 treatments can be appropriate.
The Optimization of Biosilica and Humic Acid to Increase Soil Nutrient Availability and Nutrient Uptake in Rice Plant in Sandy Soil Wanti Mindari; M. Ghufron Chakim; Bakti Wisnu Widjajani; Purnomo Edi Sasongko; Haidar Fari Aditya; Ahmad Mustapha Mohamad Pazi; Seca Gandaseca
Caraka Tani: Journal of Sustainable Agriculture Vol 40, No 1 (2025): January
Publisher : Universitas Sebelas Maret

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.20961/carakatani.v40i1.89018

Abstract

Nutrients in sandy soil are limited due to low absorption capacity and are easily leached or evaporated. Biosilica and humic acid extracted from compost and husk ash can improve the soil structure and absorption capacity to optimize the availability and uptake of nutrients. Therefore, this research aims to examine the optimal application dose of biosilica and humic acid to improve the chemical properties of soil with a sandy texture. The experiment was structured based on a completely randomized design (CRD). Factor 1 consisted of biosilica doses of 0, 0.5, 1.0, and 1.5 tons ha-1, while factor 2 comprised humic acid doses of 0, 20, 40, and 60 kg ha-1. Data analysis was performed using ANOVA, followed by Tukey’s Honest Significant Difference (HSD) test, correlation, and determination analysis. The study results indicate that the combination of biosilica and humic acid contributes to the changes in nutrient availability. The impact of the treatment was observed 90 days after application on the parameters of soil pH, organic C, total N, and exchangeable K. The effects of the treatment were also evident in plant nutrient uptake, specifically in total N in the roots and total K in the stems. The optimal combination for improving soil nutrient availability and nutrient uptake in plant tissues was a biosilica dose of 1.0 tons ha-1 (S2) and humic acid at 40 kg ha-1 (H2).
Co-Authors Ahmad Mustapha Mohamad Pazi Angga Handika Putra Bakti Wisnu Widjajani Haidar Fari Aditya M. Ghufron Chakim Mahesa Fahmi Husein Purnomo Edi Sasongko Purwadi MP. Ir Rusyla Dwi Rahayu Seca Gandaseca Setyo Budi Santoso Setyo Budi Santoso Siswanto