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All Journal Journal of Tropical Soils CEFARS : JURNAL AGRIBISNIS DAN PENGEMBANGAN WILAYAH Jurnal Agribisnis dan Pengembangan Wilayah
Diah Puspita Hati
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Agriculture, Biological Sciences & Forestry Economics, Econometrics & Finance Environmental Science

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Soil Characteristics and Management of Ultisols Derived from Claystones of Sumatra Pratamaningsih, Mira Media; Hati, Diah Puspita; Erwinda, Erwinda; Muslim, Rufaidah Qonita; Hikmat, Muhammad; Purwanto, Setiyo
JOURNAL OF TROPICAL SOILS Vol 29, No 3: September 2024
Publisher : UNIVERSITY OF LAMPUNG

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.5400/jts.2024.v29i3.115-125

Abstract

Ultisols are one of the soil types that develop from claystone parent materials and are widely distributed in Indonesia, making them suitable for agricultural land use. Naturally, Ultisols have low soil fertility, such as acidic soil reactions and low base content;  without proper management, they can lead to suboptimal agricultural yields. Therefore, this study aims to determine the physical, chemical, and mineralogical characteristics of Ultisols to formulate appropriate land management practices. Soil samples were collected from Ultisols with claystone parent materials from various regions in Sumatra, Indonesia. Soil profile creation was conducted to observe soil morphology in the field, followed by physical, chemical, and mineralogical analysis in the laboratory. The results showed that the Ultisols studied have a deep solum (90-120 cm), clay texture, and sticky and plastic consistencies. These soils generally have an acidic reaction, low organic C content, low potential P and K contents, low cation exchange capacity, low base saturation, and high Al saturation. The contents of easily weathered minerals, such as orthoclase, biotite, augite, hypersthene, tourmaline, and andalusite, which are essential nutrient reserves, are also generally low. Thus, the Ultisols studied are classified as low fertility soils, requiring specific management practices such as adding lime, organic materials, and soil amendments in a balanced and appropriate manner to achieve optimal yields.
AZOLLA PINNATA DANBLUE-GREEN ALGAESEBAGAI BIOFERTILIZER PADASYSTEM OF RICE INTENSIFICATION (SRI). Hati, Diah Puspita
CEFARS : JURNAL AGRIBISNIS DAN PENGEMBANGAN WILAYAH Vol. 4 No. 1 (2012): CEFARS : JURNAL AGRIBISNIS DAN PENGEMBANGAN WILAYAH
Publisher : Fakultas Pertanian Universitas Islam 45 (UNISMA) Bekasi

Show Abstract | Download Original | Original Source | Check in Google Scholar

Abstract

This study aims to determine the effect of Azollapinnata and Blue - green Algae As Biofertilizer on System of Rice Intensification ( SRI ). This study was conducted from March 2010 to June 2010 in the greenhouse of the Faculty of Agriculture, University of Padjadjaran, Jatinangor, Sumedang. The research location is at an altitude of ± 700 mdpl . This experiment used a randomized block design (RAK) factorial consisting of two treatments Azollapinnata (4 stage treatment ), namely: a0 = without Azolla ; pot -1 Azolla; a2 = 50 g pot -1 Azolla; a3 = 75 g pot -1 Azolla dan Blue-green Algae ( 3 stage treatment ) , namely : b0 = without BGA ; b1 = 0.05 lt pot-1 BGA; b2 = 0.1 lt pot-1BGA with three replications. The results showed Azollapinnataproviding various treatments and BGA does not significantly affect the growth of rice plants SRI.Perlakuana3b1 provide the highest influence on the number of tillers and a0b2 treatment gave the highest effect on plant height and plant height difference . However a3b1 treatment gives the best effect because it is more consistent both in the number of tillers and plant height.
AZOLLA PINNATA DANBLUE-GREEN ALGAESEBAGAI BIOFERTILIZER PADASYSTEM OF RICE INTENSIFICATION (SRI). Hati, Diah Puspita
CEFARS : JURNAL AGRIBISNIS DAN PENGEMBANGAN WILAYAH Vol. 4 No. 1 (2012): CEFARS : JURNAL AGRIBISNIS DAN PENGEMBANGAN WILAYAH
Publisher : Fakultas Pertanian Universitas Islam 45 (UNISMA) Bekasi

Show Abstract | Download Original | Original Source | Check in Google Scholar

Abstract

This study aims to determine the effect of Azollapinnata and Blue - green Algae As Biofertilizer on System of Rice Intensification ( SRI ). This study was conducted from March 2010 to June 2010 in the greenhouse of the Faculty of Agriculture, University of Padjadjaran, Jatinangor, Sumedang. The research location is at an altitude of ± 700 mdpl . This experiment used a randomized block design (RAK) factorial consisting of two treatments Azollapinnata (4 stage treatment ), namely: a0 = without Azolla ; pot -1 Azolla; a2 = 50 g pot -1 Azolla; a3 = 75 g pot -1 Azolla dan Blue-green Algae ( 3 stage treatment ) , namely : b0 = without BGA ; b1 = 0.05 lt pot-1 BGA; b2 = 0.1 lt pot-1BGA with three replications. The results showed Azollapinnataproviding various treatments and BGA does not significantly affect the growth of rice plants SRI.Perlakuana3b1 provide the highest influence on the number of tillers and a0b2 treatment gave the highest effect on plant height and plant height difference . However a3b1 treatment gives the best effect because it is more consistent both in the number of tillers and plant height.
Soil Characteristics and Management of Ultisols Derived from Claystones of Sumatra Pratamaningsih, Mira Media; Hati, Diah Puspita; Erwinda, Erwinda; Muslim, Rufaidah Qonita; Hikmat, Muhammad; Purwanto, Setiyo
JOURNAL OF TROPICAL SOILS Vol. 29 No. 3: September 2024
Publisher : UNIVERSITY OF LAMPUNG

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.5400/jts.2024.v29i3.115-125

Abstract

Ultisols are one of the soil types that develop from claystone parent materials and are widely distributed in Indonesia, making them suitable for agricultural land use. Naturally, Ultisols have low soil fertility, such as acidic soil reactions and low base content;  without proper management, they can lead to suboptimal agricultural yields. Therefore, this study aims to determine the physical, chemical, and mineralogical characteristics of Ultisols to formulate appropriate land management practices. Soil samples were collected from Ultisols with claystone parent materials from various regions in Sumatra, Indonesia. Soil profile creation was conducted to observe soil morphology in the field, followed by physical, chemical, and mineralogical analysis in the laboratory. The results showed that the Ultisols studied have a deep solum (90-120 cm), clay texture, and sticky and plastic consistencies. These soils generally have an acidic reaction, low organic C content, low potential P and K contents, low cation exchange capacity, low base saturation, and high Al saturation. The contents of easily weathered minerals, such as orthoclase, biotite, augite, hypersthene, tourmaline, and andalusite, which are essential nutrient reserves, are also generally low. Thus, the Ultisols studied are classified as low fertility soils, requiring specific management practices such as adding lime, organic materials, and soil amendments in a balanced and appropriate manner to achieve optimal yields.
Co-Authors Erwinda Erwinda Hikmat, Muhammad Muslim, Rufaidah Qonita Pratamaningsih, Mira Media Setiyo Purwanto