Experimental Investigation of briquettes formed from various sources of biochar mixed with cow dung as alternate source of energy – A West Bengal study

2021 ◽  
Author(s):  
Samarpan Deb Majumder ◽  
Agnibha Ghosh ◽  
Sansaptak De
Keyword(s):  
Experimental Investigation ◽  
West Bengal ◽  
Cow Dung ◽  
Alternate Source

scholarly journals Role of Various Extractants in Removing Group-IIB Elements of Soils Incubated with EDTA

2004 ◽  
Vol 4 ◽  
pp. 1038-1045
Author(s):  
Tanmoy Karak ◽  
Uttam Kumar Singh ◽  
D. K. Das
Keyword(s):  
Experimental Investigation ◽  
West Bengal ◽  
The Other ◽  
Agricultural Field ◽  
Removal Of Metal ◽  
Percent Removal

This paper presents the results of an experimental investigation undertaken to evaluate different extractant solutions viz. HCl, Mg(NO3)2, and DTPA with the range of concentration from 0.001 to 0.1Nafter incubation with group-IIB metals (Zn, Cd, and Hg) and EDTA to understand the capability to remove Zn, Cd, and Hg from soils. Two noncontaminated soils, one acidic (GHL) and the other alkaline (KAP), in reaction were taken from an agricultural field of West Bengal, India for this investigation. Experiments were conducted on these two soils spiked with ZnII, CdII, and HgIIin concentrations of 612, 321, and 215 mg/kg for soil GHL and 778, 298, and 157 mg/kg for soil KAP, respectively, which simulate typical electroplating waste contamination. The removal of Zn, Cd, and Hg in soil GHL within the range of HCl concentrations was 8.2–16.5, 12.2–19.1, and 4.3–6.9 whereas these were 6.5–7.6, 8.5–14.1, and 3.2–5.2 in soil KAP. The removal of Zn, Cd, and Hg in soil GHL within the range of Mg(NO3)2concentrations were 12.2–28.5, 19.1–24.6, and 18.2–19.1 whereas these were 9.1–12.1, 8.3–12.1, and 10.6–48.1 in soil KAP. For DTPA extractant, the percent removal of metal was found to be significantly higher than the other two extractants, which corroborates that DTPA is a better extractant for soil cleaning.

scholarly journals An Experimental Investigation on Strength of Concrete Made with Cow Dung Ash and Glass Fibre

2017 ◽  
Vol V6 (03) ◽  
Author(s):  
Sruthy B ◽  
Anisha G Krishnan ◽  
Gibi Miriyam Mathew ◽  
Sruthi G Raj ◽  
Keyword(s):  
Experimental Investigation ◽  
Glass Fibre ◽  
Cow Dung

scholarly journals Economy of Fertilizer Nitrogen through Organic Sources in Rain-Fed Rice-Legume Cropping Systems in West Bengal, India

2001 ◽  
Vol 1 ◽  
pp. 722-727 ◽  
Author(s):  
A.M. Puste ◽  
S. Bandyopadhyay ◽  
D.K. Das
Keyword(s):  
Soil Fertility ◽  
Field Experiments ◽  
Crop Residues ◽  
West Bengal ◽  
Crop Yields ◽  
Organic N ◽  
Yield Reduction ◽  
Cow Dung ◽  
Research Station ◽  
Available N

Field experiments were conducted at a farmers’ plot adjacent to the Regional Research Station, red and laterite zone, Sub-center Sekhampur (Birbhum district) of West Bengal, India, situated 23° 24' N latitude, 87° 24' E longitude, to study the effect of different bio- and organic sources of nutrients instead of total fertilizer N in terms of crop productivity in the sequence and building up of soil fertility. During the wet seasons of 1997 and 1998, 12 combinations of bio- and organic sources (crop residues, well decomposed cow dung, dhanicha as green manure) were substituted for 25–50% of N fertilizer applied on transplanted rice (Cv. IR 36). Subsequently, during the winters of 1997–1998 and 1998–1999, leguminous pulse crops like lentil (Lens culinaris [L.] Medic.), gram (Cicer arietinum L.) and lathyrus (Lathyrus sativus L.) were grown with and without inoculation of Rhizobium. Results revealed that the application of inorganic N in combination with organic sources exhibited a significant increase in rice yield (3.60–3.84 t ha-1) compared to the yield from sole application of N (3.19–3.26 t ha-1). The study showed that about 25% of total applied N was saved without significant yield reduction with simultaneous improvement of soil physical properties (pH, organic matter, available N, P, K, and CEC). Seed yield of pulses (lentil, gram, and lathyrus) were more pronounced in the treatment inoculated with Rhizobium, with a saving of 42.6–48.4 kg N ha-1. Therefore, the results suggest that the combined application of inorganic and organic N sources in a 75:25 ratio is a superior N-management practice with regards to crop yields as well as improvement of soil fertility.

Production of Quality Compost from Pennywort Plant Wastes

2021 ◽  
Vol 2 (2) ◽  
pp. 248-260
Author(s):  
Hina Jabeen ◽  
Akhtar Rasool ◽  
Rakhshinda Sadiq
Keyword(s):  
Crop Production ◽  
Rock Phosphate ◽  
Environmental Benefits ◽  
Cow Dung ◽  
Chemical Parameters ◽  
Environment Friendly ◽  
Useful Knowledge ◽  
Physico Chemical ◽  
Alternate Source

Abstract Composting is an environment friendly phenomenon which recycles the organic materials such as plants converting them to beneficial fertilizers. Hence composting limits the use of toxic chemical fertilizers. The aim of the study was to prepare compost/bio-fertilizer from nutrient rich plant, the pennywort, for organic crop production and to reduce the plant wastes by reusing them for environmental benefits. For this purpose, the plants were mixed with different other additives like rock phosphate, urea, cow dung and sludge to boost up the quality of compost. Pennywort plant compost alone (without any additive) was considered as a control and aerobic conditions were maintained. Physico-chemical parameters like organic matter, ash content, total nitrogen, pH, electrical conductivity (EC) and level of heavy metals and micronutrients were taken into account. All tested parameters showed a beneficial level in the amended plant composts compared to plant alone. Therefore, the prepared compost could be very promising for crops improvement. Hence, the present study would prove a significant advancement in the pool of efforts to enhance the agricultural welfares. Moreover, the current study provides useful knowledge about enhancing the properties and profile of natural composted products because it can provide an alternate source to increase the fertility of the soil and also a good approach to reduce the pressure of solid waste on environment.

Do moods and expectancies have unique or interactive effects?: An experimental investigation

2014 ◽  
Author(s):  
Shane Close ◽  
Victoria Adkins ◽  
Kandice Perry ◽  
Katheryn Eckles ◽  
Jill Brown ◽  
...  
Keyword(s):  
Experimental Investigation ◽  
Interactive Effects
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