scholarly journals Fertility map and horizontal soil potassium status of north-eastern region of Haryana

2016 ◽  
Vol 8 (4) ◽  
pp. 2077-2080
Author(s):  
Koustav Mondal ◽  
Ramkala Ramkala

Considering soil fertility evaluation of any area for sustainable production, an experiment was conducted to investigate the horizontal soil potassium status (K) of the soil surface of north-eastern region of Haryana. The study indicated that available K of surface soil samples ranged from 44 to 867 kg/ha with a mean value of 148 kg/hain Ambala district. In panchkula district it ranged from 44 to 865 kg/ha with a mean value of 138 kg/ha where as in Yamunanagar district K content varied from 62 to 441 kg/ha with a mean value of 147 kg/ha. Maximum K deficient samples were observed at Panchkula district that is 60.5 % followed by Yamunanagar and Ambala, 36.3 and 30.2 % respectively with an overall 41.3% K deficient samples. In case of Ambala 62.8% soil samples were mediumin K fertility and in case of Yamunanagar 52% soil samples were medium in K fertility. Nutrient index value for K was found 1.77, 1.76 and 1.47 in Ambala, Yamunanagar and Panchkula districts, respectively. On the basis of available surface soil K status a horizontal fertility map was prepared using GPS data. K fertilization is strongly suggested with recommended dose to check further depletion of soil available K of the surface layer.

Author(s):  
S. S. Hadole ◽  
R. N. Katkar ◽  
P. A. Sarap ◽  
S. R. Lakhe ◽  
Shamna K. Muhammed

The surface soil samples representing six tehsils were collected from Palghar district during 2015-16. The available molybdenum content in soil varied from 0.01 to 0.65 mg Kg-1 with nutrient index value was found 1.93. In Palghar district 30 percent soil samples were deficient in available molybdenum. However, positive significant correlation between available molybdenum with pH (r=+0.714**) whereas, significantly negative correlation with organic carbon content (r= -0.815**) was observed.


Author(s):  
Dipali Desai ◽  
B T Patel ◽  
Neha Chaudhary ◽  
Praveen Thakur

In order to assess the available sulphur and micronutrients (Fe, Mn, Zn and Cu) status in soils of Banaskantha district of Gujarat, five hundred and fifty six representative surface (0-15cm) soil samples were collected from farmer’s field of each taluka of Banaskantha district. All the collected soil samples were analyzed for available sulphur and DTPA-extractable cationic micronutrients (Fe, Mn, Zn and Cu) as per standard procedures. The available S content in soils of Banaskantha district varied from 4.98 to 66.89 mg kg-1 with a mean value of 15.49 mg kg-1. The DTPA- extractable Fe, Mn, Zn and Cu were in the range of 2.74 to 21.98; 4.22 to 25.02; 0.20 to 2.76 and 0.12 to 3.16 mg kg-1 with a mean value of 6.72, 10.15, 0.60 and 0.60, respectively. The overall nutrient index values were marginal for available S (1.82) and DTPA-extractable Fe (1.84) and Zn (1.74); high for DTPA-extractable Mn (2.40) and very high for Cu (2.75).


Agropedology ◽  
2019 ◽  
Vol 30 (2) ◽  
Author(s):  
V. P. Ramani ◽  
◽  
K.C. Patel ◽  
Dileep Kumar ◽  
K. P. Patel ◽  
...  

The soils of North Gujarat region's were assessed for its Sulphur and Boron status due to its visible deficiency in plants. Study was conducted in three districts viz., Sabarkantha, Mehsana and Patan from which 60, 110 and 52 villages were selected and soils samples were collected with geo-tagging. A total of 1332 surface soil samples (Sabarkantha 360, Mehsana 660 and Patan 312) were collected from these respective districts. Analysis of these soil samples showed a wide variation in soil pH (6.04-9.72) from slightly acidic to alkaline. Organic carbon (OC) content ranged from 1.0 to 7.1 g kg-1, about 90, 65 and 74% of soil samples were found to be under the low OC in Mehsana, Sabarkantha and Patan districts, respectively. Available S content ranged from 1.7 to 68.5 mg kg-1 with a mean value of 15.6, 14.7 and 14.9 mg kg-1 in Mehsana, Sabarkantha and Patan districts, respectively. S deficiency in soils of all three districts was 18.1, 25.5 and 16.9 per cent, which appeared in medium-fertility class level as per Nutrient Index Value (NIV). The high magnitude of S deficiency was noticed in soils of Idar taluka (43.9 %) followed by Khedbrahma taluka (40.9%) of Sabarkantha district, showing medium-fertility class. Further, these samples were also found deficient in hot water-soluble boron (HWS-B) and it ranged from 0.06 to 3.12 mg kg-1 with a mean value of 0.44, 0.45 and 0.44 mg kg-1 in districts of Mehsana, Sabarkantha and Patan, respectively. The NIV indicated B fertility level of low to high. Per cent deficiency of B recorded about 29.4, 17.9 and 19.2 per cent in all three districts. A large scale of B deficiency was noticed in Satlasna taluka (52.4 %) of Mehsana district, which showed low fertility class.


Author(s):  
K. Chandrasekar ◽  
J. Prabhaharan ◽  
P. P. Mahendran ◽  
P. Saravana Pandiyan ◽  
A. Gurusamy ◽  
...  

The present study was undertaken to assess the available DTPA iron status in the major sugarcane growing soils of Southern Sivangai district, Tamil Nadu, India. A total of 500 geo referenced surface (0-30 cm) were collected from five blocks viz., Kalaiyarkovil, Padamathur, Sivagangai, Thiruppachetty and Thiruppuvanam and analyzed for basic soil properties and available DTPA iron. Simple correlation was worked out to ascertain the degree of relationship between soil properties and available DTPA iron content of soil study area. The available DTPA iron in the entire sugarcane growing soils ranged from 2.95 to 5.79 mg kg-1, 2.11 to 4.31 mg kg-1, 3.49 to 5.59 mg kg-1, 1.99 to 5.66 mg kg-1 and 3.94 to 6.39 mg kg-1 in soil samples of Kalaiyarkovil, Padamathur, Sivagangai, Thiruppachetty and Thiruppuvanam respectively. In the soil samples from Kalaiyarkovil, Padamathur, Sivagangai, Thiruppachetty, and Thiruppuvanam, the results revealed that 52, 59, 55, 53, and 51 % of the soils were deficient in available iron and 33, 29, 35, 30 and 32 % of the soils were moderate in available iron, and 15, 12, 10,5 and 17 % of the soils were sufficient in available iron. As per the nutrient index study, the soils of study area recorded very low to low fertility rating for available iron and the mean nutrient index value (NIV) ranged from 1.42 to 1.64 in the soil of the study area. SOC and CEC were found to have a beneficial impact on iron availability, whereas EC and CaCO3 levels had a negative impact on DTPA iron availability.


2011 ◽  
Vol 91 (1) ◽  
pp. 69-76 ◽  
Author(s):  
Yuanjun Zhu ◽  
Yunqiang Wang ◽  
Mingan Shao ◽  
Robert Horton

Zhu, Y., Wang, Y., Shao, M. and Horton, R. 2011. Estimating soil water content from surface digital image gray level measurements under visible spectrum. Can. J. Soil Sci. 91: 69–76. Determining soil water content (SWC) is fundamental for soil science, ecology and hydrology. Many methods are put forward to measure SWC, such as drying soil samples, neutron probes, time domain reflectrometry (TDR) and remote sensing. Sampling and drying soil is time-consuming. A neutron probe cannot determine SWC of surface soil accurately because neutrons escape when they are emitted near soil surface and TDR is, to some extent, influenced by soil salinity and temperature. Remote sensing can obtain SWC over a large area across a range of temporal and spatial scales. Complicated terrain and atmospheric conditions often make remote sensing data unreliable. Determining SWC from surface gray level (GL) measurements in the visible spectrum may have advantages over other remote sensing techniques, because surface soil images can be easily acquired by digital cameras, even with complicated landforms and meteorological conditions. However, few studies use this method, and further work is required to develop the ability of visible spectrum digital images to accurately estimate SWC. In this study, 42 soil samples were collected to investigate the relationship between surface GL and SWC using computer processing of soil surface images acquired by a digital camera. After establishing an equation to describe this relationship, a simple calibrated model was developed. The calibrated model was validated by an independent set of 48 soil samples. The results indicate that surface GL was sensitive to SWC. There was a negative linear relationship between surface GL and the square of SWC for the 42 calibration soil samples (correlation coefficients >0.91). Based on this negative relationship, a model was established to estimate SWC from surface GL. The results of model validation showed the estimated SWCs by surface GL were very close to the measured SWCs (correlation coefficient=0.99 at a significant level of 0.01). Generally, SWC could be estimated from surface GL for a given soil, and the model could be used to quickly and accurately determineg SWC from surface GL measurements.


2021 ◽  
Vol 2021 ◽  
pp. 1-7
Author(s):  
Nguyen Thi Lan Binh ◽  
Nguyen Trung Hoang ◽  
Nguyen Thi Thanh Truc ◽  
Vu Dinh Khang ◽  
Hung Anh Le

An increase in heavy metal soil contamination, especially lead, in the industrial area or near industrial areas has become a serious environmental problem. An industrial zone including paints, electrical plants, metal works, machining, and smelting factories, in the suburban of Ho Chi Minh City, was chosen as the study area. Soil samples were collected from the industrial area and in the residential area next to the industrial area for three experiments, namely, lead content in the surface soils, lead leachate into the water, and movement of lead in soil. Then, the results were compared to the values in the Soil Contamination Countermeasures Law of the Japan Ministry of Environment to assess the possibility of soil contamination which may cause health risks to a human living in that area. The results of the analysis show that the soil has been contaminated by lead. In particular, the lead concentrations of the surface soil samples are 23–35 mg kg-1, while the lead elution of soil samples is quite high, about 0.6 mg L-1. With these results, the soil can harm people by direct ingestion. More importantly, this work proves that lead species have been going down gradually. To assess the possibility of lead approaching groundwater, more further studies need to be achieved.


Author(s):  
MELAKYRKHU NIANGMIH ◽  
SAMIRAN CHUTIA ◽  
DAS BANYASHREE ◽  
SARKAR BAPI ROY ◽  
DEY BIPLAB KUMAR ◽  
...  

Think India ◽  
2019 ◽  
Vol 22 (3) ◽  
pp. 186-192
Author(s):  
Dr. Oinam Ranjit Singh ◽  
Dr. Nushar Bargayary

The Bodo of the North Eastern region of India have their own kinship system to maintain social relationship since ancient periods. Kinship is the expression of social relationship. Kinship may be defined as connection or relationships between persons based on marriage or blood. In each and every society of the world, social relationship is considered to be the more important than the biological bond. The relationship is not socially recognized, it fall outside the realm of kinship. Since kinship is considered as universal, it plays a vital role in the socialization of individuals and the maintenance of social cohesion of the group. Thus, kinship is considered to be the study of the sum total of these relations. The kinship of the Bodo is bilateral. The kin related through the father is known as Bahagi in Bodo whereas the kin to the mother is called Kurma. The nature of social relationships, the kinship terms, kinship behaviours and prescriptive and proscriptive rules are the important themes of the present study.


2020 ◽  
Vol 15 (3) ◽  
pp. 264-273
Author(s):  
Syeda Sabiha Salam ◽  
Pankaj Chetia ◽  
Devid Kardong

Background: Malaria is endemic in various parts of India particularly in the North- Eastern states with Plasmodium falciparum-the most prevalent human malaria parasite. Plantderived compounds have always received tremendous importance in the area of drug discovery and development and scientific study of traditional medicinal plants are of great importance to mankind. Objective: The present work deals with the computational study of some antimalarial compounds obtained from a few medicinal plants used by the tribal inhabitants of the North-Eastern region of India for treating malaria. Methods: In silico methodologies were performed to study the ligand-receptor interactions. Target was identified based on the pharmacophore mapping approach. A total of 18 plant-derived compounds were investigated in order to estimate the binding energies of the compounds with their drug target through molecular docking using Autodock 4.2. ADMET filtering for determining the pharmacokinetic properties of the compounds was done using Mobyle@RPBS server. Subsequent Quantitative-Structure Activity Relationship analysis for bioactivity prediction (IC50) of the compounds was done using Easy QSAR 1.0. Results: The docking result identified Salannin to be the most potent Plasmepsin II inhibitor while the QSAR analysis identified Lupeol to have the least IC50 value. Most of the compounds have passed the ADME/Tox filtration. Conclusion: Salannin and Lupeol were found to be the most potent antimalarial compounds that can act as successful inhibitors against Plasmepsin II of P. falciparum. The compounds Salannin and Lupeol are found in Azadirachta indica and Swertia chirata plants respectively, abundantly available in the North-Eastern region of India and used by many inhabiting tribes for the treatment of malaria and its symptoms.


Author(s):  
Hari Shankar ◽  
Sobhan Phookan ◽  
Mrigendra Pal Singh ◽  
Ram Suresh Bharti ◽  
Naseem Ahmed ◽  
...  

Abstract Background Malaria elimination requires targeting asymptomatic and low-density Plasmodium infections that largely remain undetected. Therefore we conducted a cross-sectional study to estimate the burden of asymptomatic and low-density Plasmodium infection using conventional and molecular diagnostics. Methods A total of 9118 participants, irrespective of age and sex, were screened for malaria using rapid diagnostic tests (RDTs), microscopy and polymerase chain reaction. Results Among the participants, 707 presented with symptoms and 8411 without symptoms, of which Plasmodium was present in 15.6% (110/707) and 8.1% (681/8411), respectively. Low-density infection was found in 5.1% (145/2818) of participants and 8327 of 9118 were Plasmodium negative. Endemicity was propotional to asymptomatic infections (high endemicity 11.1% [404/3633] vs low endemicity 5.8% [277/4778]; odds ratio [OR] 2.0 [95% confidence interval {CI} 1.7 to 2.4]) but inversely related to low-density infection (high endemicity 3.7% [57/1545] vs low endemicity 6.9% [88/1273]; OR 1.9 [95% CI 1.4 to 2.7]). The spleen rate in children 2–9 y of age was 17.9% (602/3368) and the enlarged spleen index was 1.6. Children between 8 and 14 y showed higher odds for asymptomatic (adjusted OR [aOR] 1.75 [95% CI 1.4 to 2.2]) and low-density infections (aOR 0.63 [95% CI 0.4 to 1.0)] than adults. Conclusions The prevalence of asymptomatic and low-density Plasmodium infection undermines the usefulness of standard diagnostic tools used by health agencies. This necessitates deploying molecular tools in areas where malaria microscopy/RDTs indicate a dearth of infection.


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