scholarly journals PEMETAAN STATUS HARA P, pH dan C organik TANAH SAWAH DI DESA HILIBADALU KECAMATAN SOGAEADU KABUPATEN NIAS

2017 ◽  
Vol 4 (3) ◽  
pp. 240-251
Author(s):  
Charlan B Lombu
Keyword(s):  
Organic Carbon ◽  
Soil Ph ◽  
Nutrient Status ◽  
Soil Samples ◽  
Rice Production ◽  
Total Phosphate ◽  
Grid Survey ◽  
Detailed Level ◽  
Very High ◽  
Available Phosphate

The purpose of this research is to survey and mapping nutrient status of total phosphate, available phosphate, soil pH and organic carbon at paddy fields Hilibadalu Village Sogaeadu District Nias Regency and its influence on rice production. Soil samples were analyzed at the Analytical Laboratory of PT Socfindo Indonesia North Sumatera Province. Which began in October to December 2016. The method used is the Free Grid Survey semi-detailed level survey and analysis of nutrient data total phosphate by Acid destruction method (HClO4), available phosphate by Bray II method, soil pH by H2O extraction and organic carbon by Walkley & black method and then interpret to the map nutrient status. The result of research showing that status total phosphate classified by 3 statuses such as medium (81,59 ha), high (81,15 ha) and very high (27,26 ha). Available phosphate classified in 3 nutrient status such as very low (39,11 ha), low (137,40 ha) and medium (13,49 ha). Soil pH classified into 2 statuses such as moderately acidic (30,16 ha) and strongly acidic (159,84 ha). Organic carbon classified by 3 nutrient statuses such as very low (3,06 ha), low (135,84 ha) and medium (51,10 ha). Available phosphate and organic carbon affect rice production in Hilibadalu Village Sogaeadu District Nias Regency.

scholarly journals Nutrients Status in Arabica Coffee (Coffea Arabica L) Soils of Non-Traditional Area (NTA)

2021 ◽  
pp. 17-22
Author(s):  
S. A. Nadaf ◽  
A. R. Bora
Keyword(s):  
Organic Carbon ◽  
Soil Ph ◽  
Andhra Pradesh ◽  
Soil Nutrient ◽  
Nutrient Status ◽  
Eastern Ghats ◽  
Research Station ◽  
Arabica Coffee ◽  
Phosphorous Content ◽  
Traditional Area

Coffee growing areas in Andhra Pradesh and Orissa (non-traditional area - NTA) are characterized by undulating topography with terraced slopes having narrow valleys with scattered coffee farms across the elevation of the Eastern Ghats of Vishakhapatnam (Andhra Pradesh) and Koraput (Orissa) districts. Under this situation plant available nutrients will become non-available and the nutrients are stored in several pools as inorganic and organic forms in soil exchange complex are very much essential for coffee plants for its growth and development. Hence, a study was conducted to know the soil nutrient status of coffee growing region of NTA. A total of 693 surface soil samples were collected at depth of 22cm randomly from each coffee growing mandals of NTA and assessed the nutrient status (soil pH, OC, available P and K) at Regional Coffee Research Station, Narsipatnam. Results of the soil test results indicated that most of the Arabica coffee soils of NTA are acidic in reaction (72 %) and soil pH > 6.0 in these soils was 28 % in the tested soils. Plant available phosphorous (P) in the soil is low with 33 % soils and 46 % of the soils are medium in range. However, only 21 % of the soils tested are high in available phosphorous content in these soils. The majority of the soils of this region are high in available potassium about 54 % and 31 % of the soils are medium in range but only 15 % of the soils are low in available K status. Coffee soils of NTA are rich in organic carbon status and almost 47 %. 33 % of the tested soils are medium in range but 19 % of soils were low in organic carbon status. Soils are slightly acidic in reaction and were rich in organic carbon and available potassium status.

scholarly journals CHARACTERISTICS OF RICE SOILS FROM THE TIDAL FLAT AREAS OF MUSI BANYUASIN, SOUTH SUMATRA

2016 ◽  
Vol 2 (1) ◽  
pp. 10 ◽  
Author(s):  
B.H. Prasetyo ◽  
S. Suping ◽  
Subagyo H. ◽  
Mujiono Mujiono ◽  
H. Suhardjo
Keyword(s):  
Organic Carbon ◽  
Tidal Flat ◽  
Amorphous Materials ◽  
Mineral Soil ◽  
Soil Samples ◽  
Moisture Regime ◽  
Organic Carbon Content ◽  
Rice Soils ◽  
Specific Chemical ◽  
Very High

Tidal flats in the Musi Banyuasin region that cover more than 200,000 ha are the largest area for agricultural development in South Sumatra Province. Only about a half of this has been used for tidal swamp rice fields, therefore, the other half needs to be developed. To obtain a better understanding of their properties for appropriate soil management, soil characteristics of the area need to be studied. To characterize the soil, thirty-four soil samples from seven soil profiles were analyzed for their chemical and mineralogical composition at the laboratories of the Center for Soil and Agroclimate Research and Development. The results indicate that soils from the tidal flat areas have an aquic soil moisture regime, the upper parts of the soils are mostly ripe, and most of the pedons show the presence of sulfidic materials below 65 cm of the mineral soil surface. The soils are classified as Sulfic Endoaquept (P1, P2), Histic Sulfaquent (P3), Typic Sulfaquept (P4), Fluvaquentic Endoaquept (P5), and Sulfic Hydraquent (P6, P7). Mineral composition of the sand fraction is dominated by quartz, while the clay minerals consist of predominantly kaolinite, mixed with small amount of smectite, illite, quartz, and crystoballite. Organic carbon content is high to very high, potential phosphate content of most pedons ranges from very low to medium, while potential potassium content varies from very low to medium in the upper layers and medium to very high in the bottom layers. Phosphate retention of topsoil sample varies from 56 to 97%, and is positively correlated (r2 = 0.73) with aluminum from amorphous materials. Exchangeable cations are dominated by Mg cation, and in all pedons cation exchange capacity values are medium to very high, and seem to be influenced by organic carbon. Specific chemical properties, particularly soil pH and content of exchangeable aluminum exhibit a significant change about 1-2 months after soil samples were taken from the field. Theoretically, interaction between good water management and fertilizer application are among the choices of management to make these soils productive.

scholarly journals Determining the Distribution and Interaction of Soil Organic Carbon, Nitrogen, pH and Texture in Soil Profiles: A Case Study in the Lancangjiang River Basin, Southwest China

Forests ◽  
2020 ◽  
Vol 11 (5) ◽  
pp. 532 ◽  
Author(s):  
Wenxiang Zhou ◽  
Guilin Han ◽  
Man Liu ◽  
Jie Zeng ◽  
Bin Liang ◽  
...  
Keyword(s):  
Organic Carbon ◽  
Soil Organic Carbon ◽  
River Basin ◽  
Soil Ph ◽  
Soil Texture ◽  
Soil Depth ◽  
Soil Samples ◽  
Soil Profiles ◽  
Soil Organic Nitrogen ◽  
Silty Loam

The profile distributions of soil organic carbon (SOC), soil organic nitrogen (SON), soil pH and soil texture were rarely investigated in the Lancangjiang River Basin. This study aims to present the vertical distributions of these soil properties and provide some insights about how they interact with each other in the two typical soil profiles. A total of 56 soil samples were collected from two soil profiles (LCJ S-1, LCJ S-2) in the Lancangjiang River Basin to analyze the profile distributions of SOC and SON and to determine the effects of soil pH and soil texture. Generally, the contents of SOC and SON decreased with increasing soil depth and SOC contents were higher than SON contents (average SOC vs. SON content: 3.87 g kg−1 vs. 1.92 g kg−1 in LCJ S-1 and 5.19 g kg−1 vs. 0.96 g kg−1 in LCJ S-2). Soil pH ranged from 4.50 to 5.74 in the two soil profiles and generally increased with increasing soil depth. According to the percentages of clay, silt, and sand, most soil samples can be categorized as silty loam. Soil pH values were negatively correlated with C/N ratios (r = −0.66, p < 0.01) and SOC contents (r = −0.52, p < 0.01). Clay contents were positively correlated with C/N ratios (r = 0.43, p < 0.05) and SOC contents (r = 0.42, p < 0.01). The results indicate that soil pH and clay are essential factors influencing the SOC spatial distributions in the two soil profiles.

The nutrient status and cultivation practices of the soils of the North-West wheat belt of NSW.

1954 ◽  
Vol 5 (3) ◽  
pp. 422 ◽  
Author(s):  
EG Hallsworth ◽  
FR Gibbons ◽  
TH Lemerle
Keyword(s):  
Organic Carbon ◽  
New South ◽  
Nutrient Status ◽  
North West ◽  
Nitrogen Levels ◽  
The North ◽  
South Wales ◽  
Cultivation Practices ◽  
North Western ◽  
Available Phosphate

A study has been made of the nitrogen, organic carbon, phosphate, and pH levels of the wheat soils of north-western New South Wales, and the cultivation practices adopted. They are found generally to be high in both total and available phosphate, and particularly high figures for available phosphate, over 1000 p.p.m., were found in limited areas. The nitrogen levels of the virgin chernozemic soils are distinctly higher than those of the red-brown earths and red solodic soils, but soils of all groups show a decline with cultivation, which is most rapid in the first 10 years. The introduction of periods under lucerne raises the nitrogen level, but the wheat/grazed fallow or wheat/grazing oats appear to cause the same nitrogen losses as are encountered under continuous wheat, in spite of the prevalence of stubble burning which inevitably accompanies this practice. The average yields of wheat on the chernozemic soils are distinctly higher than those obtained on the red-brown earths and red solodic soils, on some of which nitrogen appears to be limiting.

scholarly journals Fertility Status of Groundnut Growing Calcareous Vertisols of Dharwad District, Karnataka

2020 ◽  
pp. 7-19
Author(s):  
V. Manasa ◽  
N. S. Hebsur ◽  
P. L. Patil ◽  
M. Hebbara ◽  
B. N. Aravind Kumar ◽  
...  
Keyword(s):  
Organic Carbon ◽  
Soil Ph ◽  
Calcareous Soils ◽  
Chemical Properties ◽  
Nutrient Status ◽  
Soil Survey ◽  
Available Phosphorus ◽  
Available Nitrogen ◽  
Caco3 Content ◽  
Nutrient Index

A soil survey was carried out in different groundnut growing calcareous Vertisols of Dharwad district, Karnataka, India. One hundred surface composite soil samples were collected from five talukas (mandal) of Dharwad district and analyzed for soil chemical properties and nutrient status. The results showed that soil pH, electrical conductivity, organic carbon, free CaCO3 content ranged from 6.9-8.9, 0.15-1.79 dS m-1, 2.40-9.10 g kg-1, 5.8 -22.2 respectively across the regions. Available nitrogen, phosphorus (P2O5), potassium (K2O) and sulphur contents widely varied from 107-268, 18.5 - 56.0 and 386- 876, 14.8- 41.0 kg ha-1, respectively. On the basis of nutrient index values, groundnut growing calcareous soils of Dharwad were categorized as deficient in available nitrogen, medium in available phosphorus and high in available potassium. Most of the samples were deficient in available Fe and Zn whereas DTPA-extractable Cu and Mn were above the critical limits. A significant and positive correlation was found between organic carbon and available nitrogen (r=0.730**). However, a negative correlation was observed between Soil pH and micro nutrients while CaCO3 was negatively correlated with available iron (r=-0.31**).

scholarly journals Soil Nutritional Status of Tea Plantations in Plains of Sub Himalayan West Bengal, India

2020 ◽  
Vol 8 (3) ◽  
pp. 239-246
Author(s):  
Mainak Mukherjee ◽  
Sourav Chakraborty ◽  
Sahadeb Sarkar ◽  
Sumedha Saha ◽  
Soumya Majumder ◽  
...  
Keyword(s):  
Organic Carbon ◽  
West Bengal ◽  
Soil Nutrient ◽  
Nutrient Status ◽  
Crop Productivity ◽  
Soil Samples ◽  
Garden Soil ◽  
High Potassium ◽  
Tea Plantations ◽  
Almost All

Tea is the most consumed beverages after water. In Terai and Dooars region of sub Himalayan West Bengal, India, tea plantations are around 150 years. Exploitation of tea garden soil over centuries has led to decline in soil fertility and crop productivity after all initiatives of external inputs. As nutrients play a crucial role in quality and quantity of manufactured tea, the present initiative has been designed to quantify the soil nutrient status of tea growing Terai and Dooars region. 79.62% (Terai) and 84.72% (Dooars) of the soil samples were found to have normal pH. 47.21% (Terai) and 49.3% (Dooars) of soil samples was found to have normal organic carbon. 12.03% and 20.82% of soil from Terai and Dooars showed low total nitrogen. Both the organic carbon and nitrogen in soil are positively correlated. Phosphorus (as P2O5) content of soil is extremely site and depth specific. Almost all samples of the study area showed high potassium (as K2O) content. Monoculture, change in rainfall pattern and inorganic additives have contributed enormous stress to soil but despite of all these odds the overall nutritional richness of these tea growing regions seems to be satisfactory.

scholarly journals Status of soil properties in relationship with soil pH in Madhupur tract of Tangail district in Bangladesh

2020 ◽  
Vol 30 (3) ◽  
pp. 282-287
Author(s):  
U Kumar ◽  
H Rashid ◽  
NH Tithi ◽  
MY Mia
Keyword(s):  
Organic Matter ◽  
Soil Properties ◽  
Soil Ph ◽  
Soil Samples ◽  
The Status ◽  
June July ◽  
Zn Status ◽  
Very High ◽  
N Status

The study was intended to investigate the status of soil properties and its relation to soil pH in Madhupur tract soil of Tangail district, Bangladesh. Thirty soil samples were collected during the period from June-July, 2016 covering four types of land as high land, medium high land, medium low land and low land. The interpretative data showed that the range of pH was strongly acidic to slightly acidic (5.27- 5.90), mean pH was slightly acidic (5.61). The organic matter (OM) status was medium (2.11 to 2.33 %) and mean OM was medium (2.24 %). The Nitrogen (N) status was low (0.11 to 0.13 %) and mean N status was medium (0.12 %). The range of the Phosphorus (P) status was found very low to medium (1.63 to 11.06 µg g-1 soil) and mean P status was medium (7.37 µg g-1 soil). The Potassium (K) status was low to very high (0.15 to 0.75meq/100 g soil) and mean K status was low (0.18 meq/100 g soil). The range of the Sulfur (S) status was found from low to medium (11.73 to 16.31 µg g-1 soil), mean S status was low (13.26 µg g-1 soil). The range of the Zinc (Zn) status was found from medium to high (0.96 to 2.23 µg g-1 soil), mean Zn status was optimum (1.55 µg g-1 soil). The range of the Boron (B) status was found from medium to very high (0.39 to 0.86 µg g-1 soil), mean B status was high (0.73 µg g-1 soil). The Calcium (Ca) status was medium to optimum (4.42 to 5.23meq/100 g soil), mean Ca status was optimum (4.83 meq/100 g soil). The Magnesium (Mg) status was optimum to high (1.21 to 1.75meq/100 g soil), mean Mg status was optimum (1.37 meq/100 g soil). No significant correlation of OM and other nutrients with pH. Progressive Agriculture 30 (3): 282-287, 2019

scholarly journals Variations in Soil Chemical Properties, Bacteria and Fungi Populations Along Slope Positions and Profile Depths in Terraced and Non-terraced Lands of Rwanda highlands

2019 ◽  
Vol 39 (03) ◽  
Author(s):  
A Fashaho ◽  
G M Ndegwa ◽  
J J Lelei ◽  
A O Musandu ◽  
S M Mwonga
Keyword(s):  
Organic Carbon ◽  
High Altitude ◽  
Soil Ph ◽  
Chemical Properties ◽  
Soil Characteristics ◽  
Biological Properties ◽  
Soil Samples ◽  
High Altitudes ◽  
Total N ◽  
Bacteria And Fungi

The objective of the current study was to evaluate effect of terracing on soil chemical and biological properties in the Rwanda highlands. The study was done in March 2017. Composite soil samples were collected from the top, middle and bottom slopes of four-year-terraced and non-terraced lands, in three profile depths, in medium and high altitudes. Results showed that, levels of organic carbon (1.3, 1.04%) were significantly (p less than 0.05) higher in non-terraced than terraced land, and populations of bacteria (3.59, 2.61 CFU*106g-1) and fungi (2.51, 1.57 CFU*104g-1) were significantly higher in terraced than non-terraced land, in the medium altitude, with no significant differences observed in the high altitude. Soil pH, total N, available P, CEC, exchangeable K+, Mg2+ and Ca2+ levels in terraced and non-terraced lands were not significantly different in both altitudes. Thus, soil characteristics and fertility of the study areas showed slight changes after four years of terracing.

Erratic hyperaccumulation of nickel, with particular reference to the Queensland serpentine endemic Pimelea leptospermoides

2015 ◽  
Vol 63 (2) ◽  
pp. 119 ◽  
Author(s):  
Roger D. Reeves ◽  
W. Scott Laidlaw ◽  
Augustine Doronila ◽  
Alan J. M. Baker ◽  
(the late) George N. Batianoff
Keyword(s):  
Soil Ph ◽  
Geographic Range ◽  
Soil Samples ◽  
Ultramafic Soils ◽  
Metal Concentrations ◽  
Total Soil ◽  
Wide Range ◽  
Soil Metal ◽  
Very High ◽  
Ni Accumulation

Many hyperaccumulators of nickel (Ni) are endemic to ultramafic soils and always show very high Ni concentrations. Others occur on a variety of substrates but accumulate high Ni from the ultramafic ones. Pimelea leptospermoides is unusual in being an ultramafic endemic that shows a very wide range of Ni concentrations. The present work sought to establish the factors governing the wide variation in Ni uptake by P. leptospermoides, and aimed to investigate the likelihood of this variation originating from plant differences or soil differences. Multiple paired plant and soil samples were taken over the geographic range of occurrence of P. leptospermoides. Plant and soil metal concentrations and soil pH were measured. No evidence was found to suggest that the plants belong to populations with inherent ‘high-Ni’ and ‘low-Ni’ accumulation capability. Instead, the soil pH (covering a range from 6.0 to 8.3) and the total soil Ni concentrations of the ultramafic soils were found to be the major influences on the level of Ni accumulation. The wide variation observed in Ni accumulation by P. leptospermoides from ultramafic soils can be explained by a combination of variations in soil pH and total soil Ni concentrations.

Effects of fresh rice straw and water levels on CO2-C gas emission, soil organic carbon content and rice production

2018 ◽  
Vol 7 (1) ◽  
pp. 45-53
Author(s):  
MB Hossain
Keyword(s):  
Organic Carbon ◽  
Soil Organic Carbon ◽  
Carbon Content ◽  
Rice Straw ◽  
Soil Ph ◽  
Rice Production ◽  
Organic Carbon Content ◽  
Gas Emission ◽  
Chemical Fertilizers ◽  
Continuous Flooding

An experiment was conducted at Bangladesh Institute of Nuclear Agriculture (BINA) farm, Mymensingh, Bangladesh during 2010-2011 to find out the effect of different water and organic residue levels on rice production and soil organic carbon content. Organic carbon rates from rice straw (0.5, 1.0, 1.5 and 2.0 t C ha-1 including control) were evaluated under alternate wetting and drying (AWD) and continuous flooding (CF) systems. Each treatment also received the recommended dose of chemical fertilizers excluding control. Factorial experiment was laid out in a complete randomized design with three replications. Results revealed that, maximum plant height, filled grains per tiller, 1000 grains weight, grain and straw yield were also observed in continuous flooding system in combination with 2.0 t C ha-1 in 2010 and 2011, respectively. Combined use of chemical fertilizers, 2.0 t C ha-1 fresh rice straw and continuous flooding system performed better results to reduce CO2-C gas emission, increased organic carbon and rice production with maintaining optimum soil pH level. Continuous flooding with 2.0 t C ha-1 as fresh rice straw is an effective way to reduce CO2-C emission, optimize soil pH and contribute to sustainable rice production for food security.Jahangirnagar University J. Biol. Sci. 7(1): 45-53, 2018 (June)

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