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All Journal Journal of Tropical Soils JTSL (Jurnal Tanah dan Sumberdaya Lahan) Jurnal Ilmu-Ilmu Pertanian Indonesia AKSIOMA: Jurnal Program Studi Pendidikan Matematika AGRIVITA, Journal of Agricultural Science Jurnal Solum Journal of Tropical Crop Science JURNAL AGROHITA Journal Arunasita
Gusnidar, G
Fakultas Pertanian Universitas Andalas Padang
Agriculture, Biological Sciences & Forestry Biochemistry, Genetics & Molecular Biology Chemistry Control & Systems Engineering Decision Sciences, Operations Research & Management Economics, Econometrics & Finance Education Environmental Science Industrial & Manufacturing Engineering Mathematics Other

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APLIKASI KOMPOS (JERAMI+TITHONIA) DAN BIOCHAR DENGAN MENGGUNAKAN KOMBINASI YANG BERBEDA DALAM UPAYA PENINGKATAN SIFAT KIMIA TANAH PADA LAHAN SAWAH DENGAN METODE SRI (SYSTEM OF RICE INTENSIFICATION) DI KOTA PADANG Erick Yuhardi; Gusnidar Gusnidar; Syafrimen Yasin
Jurnal AGROHITA: Jurnal Agroteknologi Fakultas Pertanian Universitas Muhammadiyah Tapanuli Selatan Vol 5, No 2 (2020): Jurnal Agrohita
Publisher : Fakultas Pertanian Universitas Muhammadiyah Tapanuli Selatan

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.31604/jap.v5i2.2081

Abstract

Penelitian Aplikasi Kompos (Jerami + Tithonia) Dan Biochar Dengan Menggunakan Kombinasi Yang Berbeda Dalam Upaya Peningkatan Sifat Kimia Tanah Pada Lahan Sawah Dengan Metode SRI (System Of Rice Intensification) dilaksanakan pada bulan November 2019 - Februari 2020 di Kecamatan Kuranji, Kota Padang, Sumatera Barat dan di lanjutkan di Laboratorium Jurusan Ilmu Tanah, Universitas Andalas. Tujuannya adalah mengkaji pengaruh aplikasi kompos (jerami + tithonia) dan biochar terhadap sifat kimia tanah pada lahan sawah dengan metode SRI. Penelitian ini menggunakan rancangan acak kelompok (RAK) yang terdiri dari 6 perlakuan dan 3 ulangan. A= kontrol, B= 100%K (kompos), C= 75%K + 25%B (biochar), D= 50%K + 50%B, E= 25%K + 75%B, F= 100%B. Data analisis tanah diuji dengan kriteria penilaian ciri kimia tanah. Hasil penelitian menunjukkan terjadi peningkatan nilai pada perlakuan 25%K (setara 1,87 ton ha-1) + 75%B (5,62 ton ha-1) seperti pH 1,33 (unit), Eh 17,4 (mV), N-total 0,49 (%), C-organik 0,78 (%), P-tersedia 14,75 (%), KTK 19,83 (cmol kg-1), Ca-dd 0,48 (cmol kg-1), Mg-dd 0,45 (cmol kg-1), Na-dd 0,44 (cmol kg-1) dan K-dd 0,27 (cmol kg-1) dibandingkan dengan kontrol. Perlakuan terbaik adalah kompos 25% + biochar 75% dalam meningkatkan sifat kimia tanah sawah kecuali C-organik dan Ca-dd.
HUBUNGAN BAHAN ORGANIK TANAH DENGAN SUHU PERMUKAAN PADA BERBAGAI PENGGUNAAN LAHAN DI NAGARI PADANG LAWEH KABUPATEN SIJUNJUNG Gunadi Gunadi; Juniarti Juniarti; Gusnidar Gusnidar
Jurnal AGROHITA: Jurnal Agroteknologi Fakultas Pertanian Universitas Muhammadiyah Tapanuli Selatan Vol 5, No 2 (2020): Jurnal Agrohita
Publisher : Fakultas Pertanian Universitas Muhammadiyah Tapanuli Selatan

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.31604/jap.v5i2.2272

Abstract

Padang laweh located in Koto VII, West Sumatra has 1.569,92 ha area which was dominated by mixed holder agriculture. The availability of soil organic C is influence by land management. Vegetation density will increase the soil organic C content, but an increase in soil temperature can increase the rate of soil organic matter decomposition which will decrease the soil organic C content. The purpose of study was to analyze the relation of soil organic matter (SOM) and soil organic carbon stock (SOCS) with land surface temperature. The study was conducted using a survey method consisting of 5 stage, namely preparation, pre survey, main survey, analysis of soil in laboratories and data processing. Soil sampling was taken in purposive random sampling under several land unit (LU), the LU were limited by soil order, slopes, and land use. Based on the land unit map, there are 14 land unit. Soil samples was taken in a composite manner at a depth of 0-20 cm. Parameter analysed were organic-C, particulate organic-C, and BD. Surface temperature measurement are carried out directly in the field using a mercury thermometer. The data of research result are processed statistically using simple linear regression equations. The result showed that the surface temperature measurement of rice field has highest temperature of 34 0C, and the rubber plantation has the lowest temperature 28 0C. Organic-C affects to soil BD, the higher organic-C value the lower BD value. The highest soil organic matter content (4.29%) and the highest carbon stock (41 kg/m2) was found in land unit 10 with rubber plantation with slope 8-15% and decreased with increasing slope. The results of the regression analysis showed that surface temperature did not have a significant effect on the value of SOM and SOCS.Keywords:  Regresi equation, Soil survei, Topografi
PENGARUH KOMPOS JERAMI PADI PLUS TITHONIA DAN BIOCHAR TERHADAP SIFAT KIMIA TANAH SAWAH Muhammad Lucky; Syafrimen Yasin; Gusnidar Gusnidar
Jurnal AGROHITA: Jurnal Agroteknologi Fakultas Pertanian Universitas Muhammadiyah Tapanuli Selatan Vol 5, No 2 (2020): Jurnal Agrohita
Publisher : Fakultas Pertanian Universitas Muhammadiyah Tapanuli Selatan

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.31604/jap.v5i2.2160

Abstract

The low level of soil fertility resulted the decrease of productivity intensification of rice fields. One of the effort is conducted by farmers to improve the fertility are continous application of synthetic fertilizer (PS). Intensive use made PS cause pollution and soil damage. This study was aimed to identification at the best combination the straw plus tithonia compost (J+T) and biochar to improving soil chemical properties intensification of rice fields, and than look effect of increasing compost (J+T) and biochar to soil chemical properties intensification of rice fields. This research was conducted in rice fields in Kuranji, Padang City, West Sumatera. The experimental design used a rondomized complete blok design. The treatments were 0% compost (J+T) and 0% biochar; 100% compost (J+T); 75% compost (J+T) and 25% biochar; 50% compost (J+T) and 50% biochar; 25% compost (J+T) and 75% biochar; 100% biochar. The data were analyzed the variance using F-test DNMRT 5% level. The result showed that the 25% compost (J+T) and 75% biochar the best combination to improvement soil chemical properties intensification of rice fields, that dosage increased soil pH by 6,30; Eh 65,00 mV; organic C 2,53%; organic M 4,35%; total N 0,93%; available P 26,00 ppm; CEC 40,48 cmol(kg)-1; exchangeable K 1,47 cmol(kg)-1; exchangeable Ca 1,06 cmol(kg)-1; exchangeable Na 0,67 cmol(kg)-1; exchangeable Mg 0,57 cmol(kg)-1.
PENGARUH KOMPOS JERAMI PADI PLUS TITHONIA DAN BIOCHAR TERHADAP SIFAT KIMIA TANAH SAWAH M. Lucky; Syafrimen Yasin; G Gusnidar
Jurnal Tanah dan Sumberdaya Lahan Vol. 8 No. 1 (2021)
Publisher : Departemen Tanah, Fakultas Pertanian, Universitas Brawijaya

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (247.909 KB) | DOI: 10.21776/ub.jtsl.2021.008.1.9

Abstract

The low level of soil fertility resulted in a decrease in productivity intensification of rice fields. One of the efforts conducted by farmers to improve fertility is the continuous application of synthetic fertilizer (PS). Intensive use made PS cause pollution and soil damage. This study was aimed to identification at the best combination the straw plus tithonia compost (J+T) and biochar to improve soil chemical properties intensification of rice fields, and then looked the effect of increasing compost (J+T) and biochar to soil chemical properties intensification of rice fields. This research was conducted in rice fields in Kuranji, Padang City, West Sumatera. The experimental design used a randomized complete block design. The treatments were 0% compost (J+T) and 0% biochar; 100% compost (J+T); 75% compost (J+T) and 25% biochar; 50% compost (J+T) and 50% biochar; 25% compost (J+T) and 75% biochar; 100% biochar. The results showed that the 25% compost (J+T) and 75% biochar was the best combination to improve soil chemical properties intensification of rice fields. The dosage increased soil pH by 6.30; Eh 65.00 mV; organic C 2.53%; organic M 4.35%; total N 0.93%; available P 26.00 ppm; CEC 40,48 cmol kg-1; exchangeable K 1.47 cmol kg-1; exchangeable Ca 1.06 cmol kg-1; exchangeable Na 0.67 cmol kg-1; and exchangeable Mg 0.57 cmol kg-1.
PENGARUH APLIKASI KOMPOS GRANUL DENGAN PEREKAT LIAT TERHADAP SIFAT KIMIA REGOSOL Ulfia Fadilla; G Gusnidar; Syafrimen Yasin
Jurnal Tanah dan Sumberdaya Lahan Vol. 8 No. 1 (2021)
Publisher : Departemen Tanah, Fakultas Pertanian, Universitas Brawijaya

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (361.585 KB) | DOI: 10.21776/ub.jtsl.2021.008.1.11

Abstract

Regosol has low fertility, especially carbon (C), nitrogen (N), phosphorus (P), potassium (K) and other macro elements, but it can be potential for agriculture cultivation. Addition of straw compost and tithonia granule (Kojeto granule) with clay binder can improve chemical soil fertility. This study aimed to determine the composition of the Kojeto granule with a clay binder and to define the interaction between type of Kojeto granule and dosage of compost granule in the chemical characteristics of Regosol. This research was conducted in a wirehouse and soil laboratory, Andalas University. The experiment used a completely randomized factorial design, with two factors and three replications. The first factor was the ratio between compost composition and clay binder 9:1 and 8:2. The second factor was 4 levels of granule compost doses (0; 7,5; 15; 22,5 t ha-1). The results showed that the best composition ratio between Kojeto and clay binder on chemical properties was 9:1. The type of Kojeto 8:2 and dosage (22 t ha-1) had an interaction on Ca-dd (3.75 me 100 g-1). The single effect on the type compost granule at type 9:1 was parameter C-org (2.23%), and single effect on increasing the dosage of granule compost at a dose of 15 t ha-1 was C-org (2.30%), N-tot (0.27%), P-available (14,30 ppm), pH (5,80), and K-dd (0.62 me 100 g-1). The optimal recommended dose is 15 t ha-1.
PENGARUH APLIKASI KOMPOS JERAMI PADI+PANGKASAN TITHONIA DAN BIOCHAR SEKAM PADI TERHADAP SERAPAN NITROGEN, FOSFOR, DAN KALIUM SERTA PRODUKSI PADI METODE SRI (SYSTEM OF RICE INTENSIFICATION) DI KOTA PADANG Erick Yuhardi; G Gusnidar; Syafrimen Yasin
Jurnal Tanah dan Sumberdaya Lahan Vol. 8 No. 1 (2021)
Publisher : Departemen Tanah, Fakultas Pertanian, Universitas Brawijaya

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (597.162 KB) | DOI: 10.21776/ub.jtsl.2021.008.1.33

Abstract

A study that was aimed to examine the effect of rice straw + tithonia pruning compost and rice husk biochar application on N, P and K uptake and rice production of SRI (System of Rice Intensification) method, was carried out from November 2019 - February 2020 in Kuranji District, Padang City, West Sumatra. This study used a randomized block design consisting of 6 treatments and 3 replications. The treatments were A = control, B = 100% K (compost), C = 75% K + 25% B (biochar), D = 50% K + 50% B, E = 25% K + 75% B, and F = 100% B. The results showed that there was an increase of N, P and K uptake by rice with the application of 25% compost + 75% biochar. The treatment increased plant height, total tiller number and grain weight by 30 cm, 25.34 stems and 5.47 t ha-1, respectively higher than that in control.
Study Of Chemical Properties Of Soil On Gambir (Uncarıa Gambir Roxb) Land Based On Slope İn Nagari Siguntur, Koto XI Tarusan district, Pesisir Selatan regency, Indonesia Kenti, Helda; Rasyidin, Azwar; Gusnidar, Gusnidar
Journal Arunasita Vol. 2 No. 1 (2025): Soil Health and Soil Management
Publisher : WBS Laboratory

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.5281/zenodo.15315389

Abstract

Gambier plants (Uncaria gambir.Roxb) are the main plantation commodity in West Sumatra. However, cultivating gambier on steep slopes can cause changes in soil chemical properties. This research aims to examine the chemical properties of soil on gambier land based on slope class in Nagari Siguntur. This research was carried out from June to December 2022. The method used was a survey method with the Purposive Random Sampling technique. Soil samples taken were soil samples on 3 slopes and forest as a control (45%) at a depth of 0-30 cm with 3 replications. The analysis results show the soil pH value is between 3.98–4.47 with very acid criteria. Soil C-Organic content is between 0.86%-1.76% with very low to low criteria. The N-Total content is between 0.26%-0.32% with medium criteria. The P-Available content is between 2.15 ppm-13.54 ppm with very low to low criteria. CEC with a value of 14.39-17.02 cmol/kg with low to moderate criteria. And the exchangeable cations in gambier land are classified as very low criteria.
SIFAT KIMIA ABU VULKANIS GUNUNG SINABUNG SEBAGAI SUMBER HARA TANAH DAN ANALISIS SPASIAL DARI SEBARAN MATERIAL HASIL ERUPSI TAHUN 2019 Saftia Laila Rajmi; Gusnidar Gusnidar; Dian Fiantis
Jurnal Ilmu-Ilmu Pertanian Indonesia Vol 24 No 1 (2022)
Publisher : BPFP Universitas Bengkulu

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.31186/jipi.24.1.62-68

Abstract

[SPATIAL ANALYSIS OF MATERIAL DISTRIBUTION AND CHEMICAL PROPERTIES OF VOLCANIC ASH FROM THE ERUPTION OF MT. SINABUNG IN 2019]. Mount Sinabung, located in Karo Regency, North Sumatra, first erupted in August 2010 and continued from 2013 to 2022. As one of the parent materials for fertile soil, volcanic ash reserves large amount of nutrients. The research was aimed to determine the chemical characteristics of volcanic ash and to map the distribution of volcanic ash from Mt. Sinabung eruption material in 2019. This study examines 22 samples of the of volcanic ash collected based on a terrestrial survey with the grid method. The results showed that volcanic ash within a radius of 3-5 km from the center of the eruption (total area 1,402.83 ha) have a pH-H2O ranged from 5.30 to 6.27 (acid to slightly acid), Mg > Na > Ca > K, in order of base cations, with moderate to very high criteria, available P ranged from 35 – 165.96 mg/kg (very high), and CEC ranged from 12.92 – 21.78 cmol/kg considered low to moderate. Therefore, the volcanic ash deposits can provide a significant quantity of nutrients for future soil fertility in agricultural areas affected by eruptions.
SPATIAL DISTRIBUTION   OF SILICON AVAILABILITY IN THE HIGHLAND PADDY FIELDS OF WEST SUMATERA, INDONESIA Adilla Sy Mahdiyah; Hermansah; Gusnidar; Maulana Insanul Kamil
Jurnal Ilmu-Ilmu Pertanian Indonesia Vol 26 No 1 (2024)
Publisher : BPFP Universitas Bengkulu

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.31186/jipi.26.1.33-39

Abstract

Silica (Si) is a functional element in rice fields that is rarely studied, especially in Solok Regency. Intensive management without a fallow period causes silica to be transported out through high uptake by rice plants. This research aims to determine the distribution of available Si in the highland rice fields in Gunung Talang District, Solok Regency, West Sumatra. The research was carried out using a survey method. Soil samples were taken following the topo-sequence of the area of 600–1,100 meters above the sea level, which consists of 3 groups of rice fields based on height differences, namely the lower, middle, and upper fields. These rice fields have two types of straw management, namely burning and immersing. The research showed that the available Si content was 10.48–293.66 mg/kg  with an average of 133.34 mg/kg. The available Si content is higher in the upper paddy fields compared to the lower and middle paddy fields. Based on differences in straw management, the available Si content is lower in fields with straw buried compared to burned straw. The application of Si fertilizer is highly recommended to obtain the available Si content in the soil.  
Pemanfaatan Tithonia Diversifolia pada Tanah Sawah yang Dipupuk P Secara Starter terhadap Produksi serta Serapan Hara N, P, dan K Tanaman Padi Gusnidar, .; Prasetyo, Teguh Budi
JOURNAL OF TROPICAL SOILS Vol. 13 No. 3: September 2008
Publisher : UNIVERSITY OF LAMPUNG

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.5400/jts.2008.v13i3.209-216

Abstract

The research of Tithonia diversifolia utilization in the paddy soil that was fertilized P-starter on yield and N, P, K uptake on rice crop, has been conducted from August to December 2005.  The objective of this research was to determine interaction between P-starter levels, and tithonia levels on production and N, P, K element uptake of rice crop. The research was pot experiment in the green house in factorial design 4 x 4.  First factor was 4 levels of tithonia with reduce dosage fertilizer aplied (T0 = 0 t tithonia + 200 kgUrea ha-1 + 75 kg KCl ha-1; T1= 2,5 t tithonia ha-1 + 150 kg Urea ha-1, without KCl; T2 = 5,0 t tithonia ha-1 + 100 kg Urea ha-1, without KCl; dan T3 = 7,5 t tithonia ha-1 + 50 kg Urea ha-1, without KCl).  The second factor was 4 levels of P-starter (0, 2, 4, and 6 kg P ha-1).  The result showed that combination T3 treatment and 2-4 kg P-starter ha-1 increased the grain yield 20,51-21,08 g pot-1 (18,65-19,21%). Effect of T3 treatment was not significant with T2 treatment on the grain yield.  The best interaction was T3 treatment on N and K uptake ((0,84 g pot-1 for N, dan 0,82 g pot-1 for K).  
Co-Authors . Adrinal . Burbey A. Maulana Adilla Sy Mahdiyah Amrizal Saidi Andhika, Rantau Annisa Fitri Azwar Rasyidin Burbey Burbey Burbey, . Chici Anche Darfis, Irwan Darmawan Darmawan Dedy Iskandar Dian Fiantis Erick Yuhardi Erick Yuhardi Fachri Ahmad Fachri Ahmad Gunadi Gunadi Gunadi Gunadi Gunadi Gunadi Hakim, Nurhajati Hermansah Herviyanti Herviyanti Hidayati, Helsa J Juniarti Kenti, Helda M. Harianti M. Lucky Maulana Insanul Kamil Mimien Harianti Muhammad Lucky Nalwida Rozen Nurhajati Hakim Nurhajati Hakim Rantau Andhika Resi Ezrari Rina Alfina Riza Syofiani Rosa Nofianti Saftia Laila Rajmi Saleh, Sulaiman Sulaiman Saleh Suyoko Suyoko Syafrimen Yasin Syaiful Syaiful Teguh Budi Prasetyo Tutik Oktaviana Ulfia Fadilla Yulnafatmawita Yulnafatmawita Yulnafatmawita, .