Siba Datta

Siba Datta
Indian Agricultural Research Institute | IARI · Division of Soil Science and Agricultural Chemistry

Doctor of Philosophy

About

156
Publications
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Introduction
Soil Chemistry, Micronutrients and pollution

Publications

Publications (156)
Preprint
Phytoextraction is an environmentally friendly and potentially cost-effective technique to remove toxic elements from contaminated soil. Lower biomass production of hyper-accumulator plants is a major bottleneck of the phytoextraction process. A pot experiment was conducted to explore three accumulator plants namely sunflower, marigold, and spinach...
Article
The gradually dwindling reserves of rock phosphate, the primary material used in the manufacturing of phosphatic fertilizers, encourages researchers to look for ways to exploit the accumulated fixed P pool in soil. Phosphate solubilizing microorganisms (PSM) could be a viable option for addressing the problem at a lower cost. Keeping these in mind,...
Article
Full-text available
Soil degradation with metal pollution was assessed in polluted river water-irrigated soils. Human health risk from ingestion of metal by way of eating of edible portion of plants, raised on these soils, was predicted based on the free ion activity in contaminated soils followed by their movement to food-chain of human, using solubility-free ion act...
Article
Full-text available
Safe levels of extractable pollutant elements in soil have not been universally established. Prediction of metal solubility in polluted soils and the subsequent transfer of these metals from soil pore water to the human food supply via crops are required for effective risk assessment from polluted soils. Thus an attempt has been made to develop a n...
Article
Despite removal of potassium (K) by crops in large quantities, often exceeding that of nitrogen (N), K fertilization has long been neglected compared with N and phosphorus (P) in Indian agriculture leading to mining of soil K. We, therefore, studied the effect of long-term fertilization (with or without K) on K supplying ability of two major soil o...
Article
An attempt has been made to assess metal availability under acid soil conditions and to identify the solid phases that govern their solubility using Baker soil test. Free metal ion activity (Mn+) expressed as negative logarithm value (pMn+= -log10 Mn+) of iron (pFe3+), manganese (pMn2+), copper (pCu2+), zinc (pZn2+), nickel (pNi2+), cadmium (pCd2+)...
Preprint
Safe levels of extractable pollutant elements in soil have not been universally established. Prediction of metal solubility in polluted soils and the subsequent transfer of these metals from soil pore water to the human food supply via crops are required for effective risk assessment from polluted soils. Thus an attempt has been made to develop a n...
Article
Full-text available
A field experiment was carried out to assess the effect of long-term combined application of sewage sludge (SS) and chemical fertilizers on yield, nutrient uptake, soil fertility status and economics of wheat (Triticum aestivum L.) grown in the experimental plot of ICAR-Indian Agricultural Research Institute (IARI), New Delhi, India. The experiment...
Article
Full-text available
An attempt has been made in assessing variability of macronutrient content in sludge as affected by sources and seasons at Indian Agricultural Research Institute, New Delhi. For this purpose, sludge samples were collected from eight different sewage treatment plants (STPs) located in and around Delhi (CP: Coronation Pillar, DG: Delhi Gate Nalla, KS...
Article
Full-text available
A field experiment was conducted to evaluate the long-term sewage sludge (SS) and fertilizer impact on yield and farm profitability in maize (Zea mays L.) grown at the ICAR-IARI, New Delhi during 2014-17. The experiment was laid out in a randomized complete block design with eight different treatment combinations comprising of different levels of s...
Article
Fertilization with suitable amendment in acidic soil is crucial to achieve long-term high crop yield without deteriorating soil health in intensive cropping system. We studied the chemical and biological properties of soil, soybean, and wheat yield after 47 years of long-term fertilization in an acidic Alfisol. Treatments were: unfertilized (contro...
Article
Utilization of phosphate solubilizing microorganisms (PSMs) to solubilize the fixed P pool in soil is a promising method considering the shrinking availability of raw material (rock phosphate) of phosphatic fertilizer production in one hand and global food security on the other. An incubation study was carried out for 90 days to assess the ability...
Article
Full-text available
Field experiment was conducted during rabi season for two years (2014-15 and 2015-16) on wheat cultivar HD-2967 in a sandy loam soil (Inceptisol) for simulation of evapotranspiration, crop water use efficiency (WUE) and yield of wheat under different tillage (Conventional tillage (CT) and no tillage (NT)), residue (maize residue @ 5 t ha-1 (R +) an...
Article
An attempt has been made to assess the geoavailability of heavy metals in polluted soils using short sequential fractionation schemes. For this purpose, 25 composite soil samples were collected from various locations (across India) of which had a history of receiving sewage sludge, municipal solid waste, polluted river water and industrial effluent...
Article
Full-text available
Potassium (K) is not only essential for plant nutrition but also equally crucial for soil health as it is an integral part of important minerals in soil. For many crops, K uptake is almost equal to or even greater than that of nitrogen (N). Despite high K requirements of crops, fertilizer use pattern in Indian agriculture remained skewed towards N...
Article
An attempt has been made to assess the geoavailability of heavy metals in polluted soils using short sequential fractionation schemes. For this purpose, twenty-five composite soil samples were collected from various locations (across India) of which had a history of receiving sewage sludge, municipal solid waste, polluted river water and industrial...
Conference Paper
Full-text available
Arsenic (As) pollution in agricultural land is increasing day by day due to over exploitation of groundwater. As a results, transfer of As from soil to food-chain via crops is also increasing day by day. Therefore, there is an urgent need of risk assessment of As contaminated soils with the ultimate aim of judging the suitability of soil for safe c...
Conference Paper
Full-text available
Arsenic (As) menace is a great environmental concern because of its cycling in water-soilplant- human/animal continuum. It is a trace toxic element, which has been affecting more than 66 countries including India, specially the areas of Ganga delta basin (Sanyal et al., 2015). In human, prolonged consumption of As contaminated food and drinking wat...
Article
Full-text available
The efficient (site-specific) management of soil nutrients is possible by understanding the spatial variability in distribution of phyto-available nutrients (here after called available nutrients) and identifying the soil management zones (MZs) of agricultural landscapes. There is need for delineating soil MZs of agricultural landscapes of the worl...
Article
Full-text available
the present study was performed to evaluate the effect of lime, poultry manure and farmyard manure (FyM) application on the immobilization of soil iron (Fe) under both submergence and alternate wetting-drying (AwD) soil moisture regimes. effect of soil amendments (organic and inorganic) and soil moisture regimes on the dry matter yield, total Fe co...
Article
Full-text available
A pot experiment was conducted in acid soil (Alfisol) using four levels of lime (CaCO 3) based on lime requirement (lr), viz. 0, 1/3, 2/3, and 1 and four levels of boron (B), viz. 0, 1.0, 1.5 and 2 mg/kg to evaluate the effect of applied calcium (Ca) and boron (B) on biomass yield, nutrient uptake of tomato (Solanum lycopersicum l.) and soil proper...
Article
Full-text available
An attempt has been made in assessing variability of macronutrient content in sludge as affected by sources and seasons. For this purpose, sludge samples were collected from eight different sewage treatment plants (STPs) located in and around Delhi (CP: Coronation Pillar, DG: Delhi Gate Nalla, KSP: Keshopur, NIL: Narella, NLT: Nilothi, OKH: Okhla,...
Article
Improving soil carbon in arable soils is one of the important strategies to achieve sustainable yields and mitigate climate change. We investigated changes in soil organic and inorganic carbon (SOC and SIC) under conservation agriculture (CA) in a calcareous soil of eastern Indo‐Gangetic Plains of India. The treatments were: conventional‐till rice...
Article
Full-text available
West Bengal is the largest rice producing state of India. In spite of leading the world in rice production, India lags behind in terms of rice productivity. In view of limited information, a pot experiment was conductedat ICAR-Indian Agricultural Research Institute (ICAR-IARI), New Delhi during kharif, 2018-19 to evaluate the response of important...
Article
Full-text available
In view of limited information, an attempt has been made to work out the distribution pattern of arsenic (As) between root and shoot of high and low grain-As accumulating rice cultivars (HAC and LAC, respectively). For this purpose, a solution culture experiment was conductedat ICAR-Indian Agricultural Research Institute, New Delhi during kharif 20...
Article
Initially, a preliminary study was conducted to assess the variation of grain zinc (Zn) and iron (Fe) content of 10 basmati rice cultivars. Thereafter, comprehensive study was conducted to enhance the Zn density in grain using three cultivars (CSR 30, Pusa Basmati-6 and PusaSugandh 5) selected from the preliminary study, using three diverse soil ty...
Article
In view of scarcity of information, effectiveness of toxicity characteristics leaching procedure (TCLP) in assessing metal hazards of polluted soils was evaluated in relation to human health. Total metal content in the soils studied were 1657±2335 mg kg-1 for Zn, 351±180 mg kg-1 for Cu, 166±79.9 mg kg-1 for Ni, 249±269 mg kg-1 for Pb and 18.6±23.2...
Article
Bioavailability and ecotoxicity of metals in contaminated soils depend largely on their solubility. The present investigation was carried out to predict the free ion activity of Zn2+, Cu2+, Ni2+, Pb2+ and Cd2+ in contaminated soils as a function of pH, organic carbon content and extractable metal concentration. Twenty-five composite soil samples we...
Article
Full-text available
Deficiency of Fe in rice mainly occurs under upland condition, particularly in alkaline and calcareous soils. The plants respond directly to changes in the activities of ions in the soil solution. Baker soil test (BST) is a new approach to soil testing which not simply determine the concentrate bioavailability but also provides the activity of an i...
Article
Full-text available
A long-term field experiment on conservation agriculture (CA) was initiated in sandy loam soil of Indo-Gangetic plain in 2008 at Research Farm of ICAR-IARI, New Delhi with 3 tillage practices, i.e. permanent bed (PB), zero-tillage (ZT) and conventional tillage (CT) in main plots and four maize-based cropping systems, i.e. maize-wheat-mungbean (MWMb...
Article
The accumulation of heavy metals and metalloids in agricultural soil is of increasing concern due to its detrimental effects on soil ecosystem and the potential risks associated with it. The metals accumulated in the top soil often transfer to the edible portion of crops grown thereon. The accumulation of heavy metals renders the edible tissues of...
Article
Full-text available
Topographic position is one of the most dominant factors that govern soil development in the hilly areas. Ten soil profiles representing different landform units i.e. hill top, side slope, broad valley and narrow valley terraces were chosen to investigate the soil morphological, physical and chemical characteristics and their relationships with top...
Article
Full-text available
Soil degradation due to elevated levels of metals is considered as a potent threat to soil quality and human health. Present investigation was carried out to develop a protocol for assessing degree of soil degradation in relation to metal accumulation due to long-term use of waste water and municipal solid-waste. For this purpose, surface soil samp...
Article
Full-text available
Effect of long-term fertilization and manuring on soil potassium (K) fractions in black soil (Vertisol) was investigated after 42 years of cultivation. Soils from 6 treatments, viz. control (unfertilized), N (100% of recommended N fertilizer), NP (N+ 100% of recommended P fertilizer), NPK (NP+ 100% of recommended K fertilizer), 150% NPK (150% of re...
Article
Full-text available
For remediating polluted soils, phytoextraction of metals received considerable attention in recent years, although slow removal of metals remained a major constraint in this approach. We, therefore, studied the effect of selected organic and inorganic amendments on the solubility of zinc (Zn), cadmium (Cd), and lead (Pb) in polluted soil and enhan...
Article
Full-text available
Conventional tillage leads to loss of soil organic carbon, disruption of soil structure, formation of sub-surface hard pan, increased soil erosion leading to deterioration of soil health and low input use efficiency. Thus, adoption of conservation agriculture practices involving no-tillage and crop residue mulch can address this problem. In this ba...
Article
Full-text available
Indiscriminate tillage practices and unscientific use of nitrogenous fertilizers lead to deterioration of soil and water quality. This could be substantially mitigated by adoption of conservation agricultural practices like no-tillage, application of crop residues and optimum dose of nitrogenous fertilizers. Therefore, the present experiment was co...
Article
Fertilizer use in Indian agriculture is skewed towards nitrogen (N) and phosphorus (P), and farmers generally neglect potassium (K) input ignoring K requirement of crops. We, therefore, studied the long-term effect of imbalanced fertilization (i.e. without K) on K supplying capacity of a kaolinitic red soil (Typic Haplustalf) after 42 years of inte...
Article
Full-text available
A field experiment was conducted between 2012-14 to investigate the effect of different phosphorus levels (control-no P, 33% P, 50% P, 100% P and 100% P in 3-splits of the recommended dose of P) and microbial inoculants (un-inoculated control, arbuscular mycorrhizal fungi, AM phosphate solubilising bacteria, PSB and AM+PSB) in maize-wheat system. T...
Article
Full-text available
A field experiment was conducted during rabi season for two consecutive years (2014-15 and 2015-16) on wheat crop in a sandy loam soil (Typic Haplustept) at the research farm of Indian Agricultural Research Institute (IARI), New Delhi with the objective of studying soil water dynamics and water productivity of wheat under different tillage, residue...
Article
Full-text available
Limited information is available on the impacts of long-term organic nutrient management practices on different nitrogen pools and urease enzyme activity. Hence, the major objective of this study was to evaluate long-term (12 years) organic nutrient management practices' impact on different nitrogen pools and urease activity. Treatments were two cr...
Conference Paper
Improving soil organic matter (SOM) in arable soils, both in terms of quantity and quality, continues to be a major challenge to restore soil health and achieve sustainable crop production. The present investigation was, therefore, undertaken to study the effect of conservation agriculture (CA) practices on distribution of soil C and N pools, and o...
Article
Full-text available
The range between deficiency and toxicity of micronutrient elements is very narrow, which underlines the importance of precise estimation. It appears that use of short sequential fractionation scheme for micronutrient cations may be practical way of solid phase speciation. A considerable progress has been made in assessing the fraction of micronutr...
Article
Full-text available
Aim: Studies on nickel pollution in soil have been mostly confined to its determination in soils receiving sewage sludge and industrial effluents and no systematic effort has been made to work out its phytotoxic limits in soil and plant. Hence, an attempt was made to establish the phytotoxic limit of Ni in alluvial soils and soybean plant. Methodol...
Article
Full-text available
Conservation agriculture (CA), implying minimal mechanical soil disturbance, permanent organic soil cover anddiversified crop rotations is an alternative farming practice for restoration and improvement of soil and environmentalhealth, especially in intensive rice-wheat (RW) systems of Indo-Gangetic Plains. The CA practices have shownsignificant ef...
Conference Paper
Full-text available
Improving soil organic carbon (SOC) in arable soils is one of the important strategies to achieve sustainable crop yields and mitigate climate change. We investigated the changes in SOC and soil inorganic C (SIC) under conservation agriculture (CA) in a calcareous soil of eastern Indo-Gangetic Plains of India after six years of rice-wheat rotation....
Article
Different land use management practices e.g. native forest vegetation, pastures and the agricultural management practices (e.g. tillage, cropping system, crop residue mulching and fertilizer and manure application) influence the soil organic carbon pools, which has short term and long term implications on soil carbon dynamics. Field experiments wer...
Article
Full-text available
An attempt was made to evaluate simple techniques for extraction of soil solution for predicting uptake of Zn, Cu, Ni, Pb and Cd by spinach grown on metal contaminated soils under modelling framework. Twenty-eight surface soil samples (0-15 cm) with heterogeneous chemical properties were collected. A pot experiment was conducted using spinach as a...
Article
Full-text available
Aim: In view of scarce information, an attempt was made to assess the effect of different media and matrices on the determination of trace toxic elements using an inductively coupled plasma mass spectrometry (ICP-MS). Methodology: Standard solutions containing 50 μg l⁻¹ of trace toxic elements, viz. Ni, Pb, Cd, and Cr were prepared in water, DTPA (...
Article
Full-text available
The excessive accumulation of metals, non-metals and metalloids in agricultural land is of increasing concern due to its detrimental effects on soil ecosystem and the potential risk associated with food-chain contamination. Hereafter, these trace toxic elements will be referred collectively as pollutant elements. Pollutant elements accumulated in t...
Article
Full-text available
Use of wastewater for irrigating agricultural crops is on the rise, particularly in the developing countries. The present study was undertaken to assess the long-term effect of irrigation with zinc smelter effluent on important soil properties including heavy metal status. Metal concentration in the edible parts of the crops grown on smelter efflue...
Article
Full-text available
Soil and plant samples were collected after harvest of wheat in 2010 from a long-term experiment on groundnut-wheat sequence that continued since 1996-97 on a Vertic Ustochrept at Junagadh Agricultural University, in order to study the distribution of boron (B) in different fractions and their contribution towards B availability in soil and B uptak...
Conference Paper
The range between deficiency and toxicity of micronutrient elements is very narrow, which underlines the importance of precise estimation. Over the years, several extractants, like dilute acid and salt solution have been used to assess available micronutrient status of soil. Although use of dilute acid does not have sound theoretical background, hu...
Conference Paper
Improving soil organic carbon (SOC) in arable soils is one of the important strategies to achieve sustainable crop yields and mitigate climate change. We investigated the changes in SOC and soil inorganic C (SIC) under conservation agriculture (CA) in a calcareous soil of eastern Indo-Gangetic Plains of India after six years of rice-wheat rotation....