Kurniawan Sigit Wicaksono
Departemen Tanah, Fakultas Pertanian, Universitas Brawijaya

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PENGARUH APLIKASI PUPUK ANORGANIK MAJEMUK TERHADAP PRODUKSI TANAMAN BAWANG MERAH (Allium cepa) DAN SIFAT KIMIA TANAH Aura Hanita Salsabila; Kurniawan Sigit Wicaksono; Syahrul Kurniawan; Novalia Kusumarini
Jurnal Tanah dan Sumberdaya Lahan Vol. 10 No. 1 (2023)
Publisher : Departemen Tanah, Fakultas Pertanian, Universitas Brawijaya

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (233.503 KB) | DOI: 10.21776/ub.jtsl.2023.010.1.12

Abstract

Onion has become one of the popular horticulture commodities in Indonesia due to the crop having several benefits. Consequently, the demand for onions in Indonesia increases annually. In contrast, the supply of onion fluctuates because of unstable onion production. One of the factors that affect unstable onion production is soil fertility degradation. Therefore, the study aimed to analyze the effect of different doses of inorganic fertilizer compounds on the chemical properties of soil, plant growth and production. The field research was conducted in the experimental land of the Faculty of Agriculture, Brawijaya University, located in Jatimulyo Village, Lowokwaru District, Malang City. This study could not detect a significant difference in fertilization doses on onion plant growth but could increase the yield and tiller numbers. The highest values of tillers number, tuber fresh weight and tuber dry weight were observed for the treatment of 50% basal fertilizer + 150% compound inorganic fertilizer and the lowest production of biomass, tillers number, wet weight, and tuber dry weight was on treatment control.
POTENSI PENGEMBANGAN TANAMAN KOPI ARABIKA BERDASARKAN TINGKAT KESESUAIAN LAHAN DI DESA BULUKERTO, KECAMATAN BUMIAJI, KOTA BATU Andre Susilo; Kurniawan Sigit Wicaksono
Jurnal Tanah dan Sumberdaya Lahan Vol. 10 No. 1 (2023)
Publisher : Departemen Tanah, Fakultas Pertanian, Universitas Brawijaya

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (755.081 KB) | DOI: 10.21776/ub.jtsl.2023.010.1.9

Abstract

Bulukerto Village, Bumiaji District, Batu City is a village that is famous for its apple farming, but currently, the productivity of apples has decreased. The area of Arabica coffee plant development in Bulukerto Village is still not optimal. The purpose of this study was to evaluate the potential for developing arabica coffee plants based on the level of land suitability in Bulukerto Village, Bumiaji District, Batu City. The determination of sample points was based on the Land Map Unit and continued with soil sampling. The indicators observed in this study were water availability (wa) which consisted of annual rainfall and dry month length, altitude (h), slope (eh), root media (rc) which consisted of effective depth and soil texture, rocks in surface (s), drainage (oa), nutrient retention (nr) consisting of pH, organic C and cation exchange capacity, then available nutrients (n) consisting of total N, available P, and exchangeable K. Data analysis for actual land suitability used the method of comparing or matching data between actual land conditions and growing conditions for Arabica coffee plants. The results showed that the land condition in Bulukerto Village, Bumiaji District, Batu City, in general, has the potential for developing Arabica coffee, with potential land suitability indicating that an area of 438,77 ha of land has class S1 (suitable) and an area of 82,62 ha of land has class S2 (moderately suitable) with some limiting factors.
EVALUASI RETENSI HARA PADA LAHAN PADI DI KABUPATEN PAMEKASAN Khofifah Nur Syamsiyah; Kurniawan Sigit Wicaksono
Jurnal Tanah dan Sumberdaya Lahan Vol. 10 No. 1 (2023)
Publisher : Departemen Tanah, Fakultas Pertanian, Universitas Brawijaya

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (707.938 KB) | DOI: 10.21776/ub.jtsl.2023.010.1.20

Abstract

Rice production in Pamekasan Regency from 2011 to 2019 decreased by 38.71% due to farmers applying fertilizers that did not match plant needs, such as insufficient application of manure, organic fertilizers and other inorganic fertilizers. In addition, the basic fertilization obtained by farmers comes from informal information, so the application of fertilizers on the land is not efficient. Efforts have been made to overcome these problems by evaluating soil fertility from the aspect of nutrient retention as a basis for determining fertilizer requirements. The purpose of this study was to evaluate soil fertility, especially from the aspect of nutrient retention in paddy fields in Pamekasan Regency. This research used a purposive random sampling method based on SPL (Land Map Unit). Parameters observed were cation exchange capacity, organic C, base saturation, pH, electrical conductivity, texture, porosity, bulk density and saturated hydraulic conductivity. The results showed that the high level of soil fertility in Pamekasan Regency was found in cation exchange capacity in Tlanakan District (43.92 cmol kg-1), base saturation in Galis District (99.38%), pH in Tlanakan District (7.00), electrical conductivity in Pakong and Pasean districts (0.39 mS) and the dominant texture is the clay fraction. Low fertility levels are found in soil organic C in Waru and Kadur Districts (0.08%), bulk density in Pasean District (1.59 g cm-3), porosity in Proppo District (34.89%), and saturated hydraulic conductivity in Pasean District (46.34 cm hour-1).
PEMANFAATAN NORMALIZED GREEN RED DIFFERENCE INDEX (NGRDI) UNTUK MENDUGA KADAR N-TOTAL PADA LAHAN PADI DI KABUPATEN PAMEKASAN Zuelfiekar Akmil Rida; Kurniawan Sigit Wicaksono
Jurnal Tanah dan Sumberdaya Lahan Vol. 10 No. 2 (2023)
Publisher : Departemen Tanah, Fakultas Pertanian, Universitas Brawijaya

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.21776/ub.jtsl.2023.010.2.32

Abstract

Inefficient fertilization is the cause of decreased rice production. This is due to the inappropriate use of fertilizers. The absence of information on soil nitrogen content in their area causes farmers not to apply fertilizer properly. Analysis of soil nitrogen content in Pamekasan Regency requires much time, cost, and effort. Remote sensing methods can be used to obtain information on soil nitrogen levels by reducing the number of samples used. This study aims to estimate nitrogen content in rice fields using the vegetation index in the form of NGRDI (Normalized Green Red Difference Index). This research was conducted by purposive random sampling method based on 40 land map units formed in Pamekasan Regency, laboratory analysis, statistical analysis, and making distribution maps. The results showed that there was a significant relationship between the NGRDI pixel value and the nitrogen content, with a correlation value of -0.42. The regression equation results obtained from the NGRDI value with nitrogen content are y = -0.269x + 0.139. The accuracy test was carried out by the RMSE method, and the result was 0.027. This shows that the NGRDI index can estimate soil nitrogen content in Pamekasan Regency
PENGARUH FITOREMEDIASI TANAMAN LOKAL TERHADAP KADAR TIMBAL (Pb) TANAH DI LAHAN PENIMBUNAN LIMBAH PERTAMBANGAN EMAS PT. ANTAM Yessika Evalyana Sinaga Bonor; Kurniawan Sigit Wicaksono; Sri Rahayu Utami
Jurnal Tanah dan Sumberdaya Lahan Vol. 10 No. 2 (2023)
Publisher : Departemen Tanah, Fakultas Pertanian, Universitas Brawijaya

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.21776/ub.jtsl.2023.010.2.34

Abstract

Gold mining is closely related to land degradation caused by heavy metals such as lead (Pb), which are non-degradable, non-essential, and immobile. This study aims to compare soil lead levels before and after phytoremediation using local plants. Plant species consist of white teak (Gmelina arborea Roxb.) Pulai (Alstonia scholaris L.R.Br.), ganitri (Elaeocarpus ganitrus Roxb.), pine (Pinus merkusii Jungh), rasamala (Altingia excelsa N.) and puspa (Schima wallichii K.) with the planting position on the upper terrace, middle terrace and lower terrace. Soil characteristics observed were texture, spH, and lead content. The two-sample pair test (paired t-test) on the soil before and after phytoremediation had a significant effect on soil lead content (Sig. 1- tailed).
Studi Karakteristik Fisika Tanah Zona Perakaran dan Produksi Tanaman Kopi (Coffea sp.) di Kecamatan Wajak, Kabupaten Malang Dinna Hadi Sholikah; Syifa Salsabila Bratawijaya; Aldo Jetco Husada; Raihan Naufal; Kurniawan Sigit Wicaksono; Soemarno Soemarno
Jurnal Ilmu Lingkungan Vol 22, No 3 (2024): May 2024
Publisher : School of Postgraduate Studies, Diponegoro Univer

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.14710/jil.22.3.731-742

Abstract

Karakteristik fisika tanah yang sesuai untuk perakaran tanaman kopi akan mendukung pertumbuhan dan perkembangan tanaman kopi. Penurunan produksi tanaman kopi pada tahun 2020 di Kecamatan Wajak, Kabupaten Malang mendasari dilakukannya analisis kesesuaian lahan pada zona perakaran, analisis hubungan antara sifat fisik tanah berupa kedalaman efektif, berat isi tanah, berat jenis tanah, porositas tanah, dan tekstur. Penelitian ini dilakukan untuk menganalisis hubungan antara sifat-sifat fisika tanah seperti kedalaman efektif, berat isi tanah, berat jenis tanah, porositas dan tekstur tanah, dengan produksi tanaman kopi di wilayah Kecamatan Wajak, Kabupaten Malang. Penelitian dilakukan menggunakan batas lahan berupa Satuan Peta Lahan dengan penentuan titik berupa stratified random sampling. Parameter penelitian berupa kedalaman efektif, tekstur tanah, berat isi (0-30 cm dan 30-60 cm), berat jenis (0-30 cm dan 30-60 cm), porositas (0-30 cm dan 30-60 cm), berat basah buah kopi (kg/100 m2). Metode kesesuaian lahan menggunakan matching antara data dari lapangan dengan syarat tumbuh di zona perakaran tanaman kopi. Hasil penelitian didapatkan bahwa sifat fisik tanah yang memiliki korelasi yang signifikan dengan produksi tanaman yaitu berat isi tanah sebesar 18,58% dan 22%, berat jenis kedalaman 0-30 cm sebesar 32,29%, porositas kedalaman 30-60 cm sebesar 34,27% dan persentase fraksi pasir sebesar 41,08%. Uji regresi berganda menunjukkan bahwa sifat fisik tanah yang paling mempengaruhi produksi Tanaman Kopi di Kecamatan Wajak, Kabupaten Malang yaitu berat jenis kedalaman 0-30 cm karena dapat menurunkan 2,14 kg/100m2 produksi Tanaman Kopi di Kecamatan Wajak, Kabupaten Malang.