scholarly journals Rice Husk Biochar for Rice Based Cropping System in Acid Soil 1. The Characteristics of Rice Husk Biochar and Its Influence on the Properties of Acid Sulfate Soils and Rice Growth in West Kalimantan, Indonesia

2010 ◽  
Vol 2 (1) ◽  
Author(s):  
Agusalim Masulili ◽  
Wani Hadi Utomo ◽  
Syechfani MS
Keyword(s):  
Rice Husk ◽  
Acid Soil ◽  
Cropping System ◽  
Acid Sulfate Soils ◽  
Acid Sulfate ◽  
West Kalimantan ◽  
Rice Growth ◽  
Rice Husk Biochar ◽  
Sulfate Soils

scholarly journals Biochemical and Molecular Characterization of Potential Phosphate-Solubilizing Bacteria in Acid Sulfate Soils and Their Beneficial Effects on Rice Growth

PLoS ONE ◽  
2014 ◽  
Vol 9 (10) ◽  
pp. e97241 ◽  
Author(s):  
Qurban Ali Panhwar ◽  
Umme Aminun Naher ◽  
Shamshuddin Jusop ◽  
Radziah Othman ◽  
Md Abdul Latif ◽  
...  
Keyword(s):  
Molecular Characterization ◽  
Phosphate Solubilizing Bacteria ◽  
Acid Sulfate Soils ◽  
Acid Sulfate ◽  
Beneficial Effects ◽  
Rice Growth ◽  
Phosphate Solubilizing ◽  
Sulfate Soils

scholarly journals Bio-Fertilizer, Ground Magnesium Limestone and Basalt Applications May Improve Chemical Properties of Malaysian Acid Sulfate Soils and Rice Growth

Pedosphere ◽  
2014 ◽  
Vol 24 (6) ◽  
pp. 827-835 ◽  
Author(s):  
Q.A. PANHWAR ◽  
U.A. NAHER ◽  
O. RADZIAH ◽  
J. SHAMSHUDDIN ◽  
I. MOHD RAZI
Keyword(s):  
Chemical Properties ◽  
Acid Sulfate Soils ◽  
Acid Sulfate ◽  
Rice Growth ◽  
Sulfate Soils

scholarly journals Rice Straw Composting by Cellulolytic Bacteria Isolate and Its Application on Rice in Acid Sulfate Soils

2020 ◽  
Vol 20 ◽  
pp. 01006
Author(s):  
Yuli Lestari ◽  
Eni Maftu’ah ◽  
Wahida Annisa
Keyword(s):  
Water Content ◽  
Pyrite Oxidation ◽  
Dry Weight ◽  
Acid Sulfate Soils ◽  
Acid Sulfate Soil ◽  
Cellulolytic Bacteria ◽  
Acid Sulfate ◽  
Rice Growth ◽  
Randomized Design ◽  
Sulfate Soils

High acidity in acid sulfate soils due to pyrite oxidation results in increased Al3+ and Fe2+ activity which inhibits the growth of rice plants. The application of organic matter (compost) is one of the technology to manage acid sulfate soil. This study aims to obtain cellulolytic bacterial isolates that are superior in composting and improving rice growth in acid sulfate soil. The experiment carries out in the laboratory and glasshouse of the Indonesian Swampland Agriculture Research Institute (ISARI), Banjarbaru, Indonesia on May-November 2017. The experimental to obtain cellulolytic bacteria and water content that can accelerate composting is arranged by factorial using a complete randomized design with three replication First factor were cellulolytic bacteria application (without application/control, BS 1.6, BS 1.9, BS 2.2 and BS 2.5), while the second factor was water content (50%, 100%, and 150%). The effect of compost application with cellulolytic bacterial to rice growth arranged by factorial completely randomized design with 3 replications. The first factor was cellulolytic bacteria application (without application/control, BS 1.6, BS 1.9, and BS 2.2), while the second factor was composting condition (muddy waterlogged and waterlogged 5 cm depth). The result showed that the ability of cellulolytic bacteria to reduce C/N straw was not different. Only differences in water content affect the reducing C/N ratio of straw. The average C/N ratio of straw compost made with 50%, 100%, and 150% water content is 35.59; 29.71, and 29.21. Application of compost made under muddy waterlogged and inoculated BS1.9 and BS2.2 can increase the number of tillers, while those inoculated BS1.6 and BS1.9 can increase the rice shoot dry weight of Inpara 2. The suggest that cellulolytic bacterial inoculation can improve the quality of compost so that the growth of rice is better.

scholarly journals Effects of Biochar and Ground Magnesium Limestone Application, with or without Bio-Fertilizer Addition, on Biochemical Properties of an Acid Sulfate Soil and Rice Yield

Agronomy ◽  
2020 ◽  
Vol 10 (8) ◽  
pp. 1100
Author(s):  
Qurban Ali Panhwar ◽  
Umme Aminun Naher ◽  
Jusop Shamshuddin ◽  
Mohd Razi Ismail
Keyword(s):  
Biochemical Properties ◽  
Fertilizer Treatment ◽  
Acid Sulfate Soil ◽  
Acid Sulfate ◽  
Soil Biochemical Properties ◽  
Rice Growth ◽  
Exchangeable Ca ◽  
Concomitant Reduction ◽  
Rice Husk Biochar ◽  
Sulfate Soils

A study was conducted to evaluate the effects of applying rice husk biochar (RHB) or ground magnesium limestone (GML) in combination with bio-fertilizer on soil biochemical properties and the yield of rice planted on an acid sulfate soil. The RHB or GML plus bio-fertilizer were applied each at the rate of 4 t ha−1. Applying the amendments increased soil pH (>5.0) and improved soil biochemical properties with a concomitant reduction of Al and Fe that resulted in enhanced rice growth. Applying GML plus bio-fertilizer resulted in increased soil N content (0.20%), available P (34.38 mg kg−1), exchangeable Ca (2.97 cmolc kg−1) and exchangeable Mg (2.45 cmolc kg−1); all these enhanced rice nutrient uptake. The highest bacterial population of 8.34 log10 CFU g−1 soil was found in the same treatment. Applying GML and RHB alone, or in combination with bio-fertilizer, was found to enhance rice growth and the yield. The highest plant height (90.33 cm), leaf chlorophyll content (38.05), plant tiller numbers (16), filled grains (86%), number of panicles per plant (18), lengths of panicles (24.40 cm), grain (5.24 t ha−1), straw yield (10.20 t ha−1) and harvest index (0.51) were determined in the GML plus bio-fertilizer, followed by RHB plus bio-fertilizer treatment. Thus, GML applied in combination with bio-fertilizer is considered as a promising agronomic package to sustain the production of rice planted on acid sulfate soils.

Enhancement of rice growth and yield in actual acid sulfate soils by potent acid-resistant Rhodopseudomonas palustris strains for producing safe rice

2018 ◽  
Vol 429 (1-2) ◽  
pp. 483-501 ◽  
Author(s):  
Nguyen Quoc Khuong ◽  
Duangporn Kantachote ◽  
Jumpen Onthong ◽  
Ly Ngoc Thanh Xuan ◽  
Ampaitip Sukhoom
Keyword(s):  
Rhodopseudomonas Palustris ◽  
Growth And Yield ◽  
Acid Sulfate Soils ◽  
Acid Sulfate ◽  
Rice Growth ◽  
Sulfate Soils

Factors Affecting Rice Growth on Acid Sulfate Soils

1990 ◽  
Vol 54 (6) ◽  
pp. 1651-1656 ◽  
Author(s):  
P. A. Moore ◽  
T. Attanandana ◽  
W. H. Patrick
Keyword(s):  
Acid Sulfate Soils ◽  
Acid Sulfate ◽  
Factors Affecting ◽  
Rice Growth ◽  
Sulfate Soils

PEUBAH KUALITAS AIR YANG MEMPENGARUHI PERTUMBUHAN RUMPUT LAUT (Gracilaria verrucosa) DI TAMBAK TANAH SULFAT MASAM KECAMATAN ANGKONA KABUPATEN LUWU TIMUR PROVINSI SULAWESI SELATAN

2009 ◽  
Vol 4 (1) ◽  
pp. 125
Author(s):  
Akhmad Mustafa ◽  
Rachmansyah Rachmansyah ◽  
Dody Dharmawan Trijuno ◽  
Ruslaini Ruslaini
Keyword(s):  
Water Quality ◽  
Growth Rate ◽  
Ammonium Phosphate ◽  
Gracilaria Verrucosa ◽  
Acid Sulfate Soils ◽  
Acid Sulfate Soil ◽  
Acid Sulfate ◽  
Independent Variables ◽  
Water Quality Variables ◽  
Sulfate Soils

Rumput laut (Gracilaria verrucosa) telah dibudidayakan di tambak tanah sulfat masam dengan kualitas dan kuantitas produksi yang relatif tinggi. Oleh karena itu, dilakukan penelitian yang bertujuan untuk mengetahui peubah kualitas air yang mempengaruhi laju pertumbuhan rumput laut di tambak tanah sulfat masam Kecamatan Angkona Kabupaten Luwu Timur Provinsi Sulawesi Selatan. Pemeliharaan rumput laut dilakukan di 30 petak tambak  terpilih selama 6 minggu. Bibit rumput laut dengan bobot 100 g basah ditebar dalam hapa berukuran 1,0 m x 1,0 m x 1,2 m. Peubah tidak bebas yang diamati adalah laju pertumbuhan relatif, sedangkan peubah bebas adalah peubah kualitas air yang meliputi: intensitas cahaya, salinitas, suhu, pH, karbondioksida, nitrat, amonium, fosfat, dan besi. Analisis regresi berganda digunakan untuk menentukan peubah bebas yang dapat digunakan untuk memprediksi peubah tidak bebas. Hasil penelitian menunjukkan bahwa laju pertumbuhan relatif rumput laut di tambak tanah sulfat masam berkisar antara 1,52% dan 3,63%/hari dengan rata-rata 2,88% ± 0,56%/hari. Di antara 9 peubah kualitas air yang diamati ternyata hanya 5 peubah kualitas air yaitu: nitrat, salinitas, amonium, besi, dan fosfat yang mempengaruhi pertumbuhan rumput laut secara nyata. Untuk meningkatkan pertumbuhan rumput laut di tambak tanah sulfat masam Kecamatan Angkona Kabupaten Luwu Timur dapat dilakukan dengan pemberian pupuk yang mengandung nitrogen untuk meningkatkan kandungan amonium dan nitrat serta pemberian pupuk yang mengandung fosfor untuk meningkatkan kandungan fosfat sampai pada nilai tertentu, melakukan remediasi untuk menurunkan kandungan besi serta memelihara rumput laut pada salinitas air yang lebih tinggi, tetapi tidak melebihi 30 ppt.Seaweed (Gracilaria verrucosa) has been cultivated in acid sulfate soil-affected ponds with relatively high quality and quantity of seaweed production. A research has been conducted to study water quality variables that influence the growth of seaweed in acid sulfate soil-affected ponds of Angkona Sub-district East Luwu Regency South Sulawesi Province. Cultivation of seaweed was done for six weeks in 30 selected brackishwater ponds. Seeds of seaweed with weight of 100 g were stocked in hapa sized 1.0 m x 1.0 m x 1.2 m. Dependent variable that was observed was specific growth rate, whereas independent variables were water quality variables including light intensity, salinity, temperature, pH, carbondioxide, nitrate, ammonium, phosphate, and iron. Analyses of multiple regressions were used to determine the independent variables which could be used to predict the dependent variable. Research result indicated that relative growth rate of seaweed in acid sulfate soils-affected brackishwater ponds ranged from 1.52% to 3.63%/day with 2.88% ± 0.56%/day in average. Among nine observed water quality variables, only five variables namely: nitrate, salinity, ammonium, phosphate and iron influence significantly on the growth of seaweed in acid sulfate soils-affected brackishwater ponds. The growth of seaweed in acid sulfate soils-affected brackishwater ponds of Angkona District East Luwu Regency, can be improved by using nitrogen-based fertilizers to increase ammonium and nitrate contents and also fertilizers which contain phosphorus to improve phosphate content to a certain level. Pond remediation to decrease iron content and also rearing seaweed at higher salinity (but less than 30 ppt) can also be alternatives to increase the growth of seaweed.

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