Kollah B.,Indian Council of Agricultural Research |
Dubey G.,Indian Council of Agricultural Research |
Parasai P.,Indian Council of Agricultural Research |
Parasai P.,Banasthali University |
And 3 more authors.
Soil Use and Management | Year: 2015
Biochar (BC) application to agricultural soil has been proposed as an effective countermeasure to mitigate climate change. A laboratory incubation experiment was carried out to gain insight into the effectiveness of BC on methane (CH4) consumption in a tropical clayey vertisol. Except for the control treatment, BC of two different sizes (<0.25 or 0.25-2.00 mm) was mixed with vermicompost (VC), poultry manure (PM) or farmyard manure (FYM). BC and organic amendment were added to soil at 10% w/w and 80 kg N/ha, respectively. BC increased CH4 consumption rate, k, in soil, irrespective of organic amendment type. The CH4 consumption potential of soil was greater with the smaller size BC (<0.25 mm). Of the three organic amendments, VC exhibited the highest k (0.105) followed by FYM (0.093) and PM (0.072). BC (<0.25 mm) + PM was the most effective of the organic amendments in enhancing CH4 consumption (k = 0.242). The lag phase varied between 7.3 day (control) and 1.0 day (soil + VC). Results revealed that there was a significant (P < 0.0001) effect of organic amendment and BC on CH4 consumption, CO2 production and microbial abundance. Cumulative CO2 production (mg/g soil) varied between 2.15 (control) and 8.77 (soil + PM + BC < 0.25 mm). Pearson's correlation analysis showed significant correlation between CH4 consumption and methanotrophs abundance (P < 0.001). The study shows that BC enhanced CH4 consumption potential in agricultural land on a tropical vertisol, particularly using the smaller size (<0.25 mm), and could be an effective strategy to mitigate atmospheric CH4. © 2015 British Society of Soil Science.
Chandela N.S.,Central Institute of Agricultural Engineering CIAE |
Tewari V.K.,Indian Institute of Technology Kharagpur |
Kumar M.,Central Institute of Agricultural Engineering CIAE |
Jha K.R.,Research and development TAFE Sembium
AMA, Agricultural Mechanization in Asia, Africa and Latin America | Year: 2015
Poor economic conditions, small land holdings, and shortage of labors are major problem in jute mechanization, resulting in delayed planting of jute. This research developed and evaluated the performance of a self propelled jute seed drill cum Rural Load Carrier (RLC) for eastern Indian farmers. Jute seed drill suitable for sowing operation in local farms, and a rural load carrier for public and goods transport in rural areas. The RLC consists of the main frame, metering mechanism (MM), furrow opener unit, power transmission, and the carrier frame. A 3.94 kW diesel engine was used as a power source. The coefficient of non-uniformity (1-Uc) varies between 0.22 and 0.29 with standard deviation (SD) of 0.024 for the metering mechanism (MM 2) in jute seed drill. The field performance evaluation was done at the speed of 2.1 km/h. It was observed that the average field capacity and field efficiency were 0.28 ha/h and 69 %, respectively. Fuel consumption varied between 4.8 and 5.31/ha. During the evaluation no damaged seeds were observed. The mean emergence time for jute seed was 7.3 and 7.5 days for seed drill sown and conventional sown method respectively. The performance test established that the machine could be used economically.
Lenka S.,Indian Institute of Science |
Lenka N.K.,Indian Institute of Science |
Singh R.C.,Central Institute of Agricultural Engineering CIAE |
Manna M.C.,Indian Institute of Science |
And 2 more authors.
National Academy Science Letters | Year: 2015
Conservation tillage as part of conservation agriculture is regarded as a potential mitigation strategy to enhance the sink for atmospheric carbon in agriculture. Though, conservation tillage has been tested for its efficacy in other parts of the globe, very few information exists with regard to its C sink potential in Indian context, particularly for Vertisols of central India. Therefore, the present study was undertaken in the Vertisols of Bhopal to assess the effect of conservation tillage with or without application of manure, on carbon sequestration and carbon management index in soybean–wheat cropping system. After 4 year cropping cycle, it was observed that conversion from conventional to conservation tillage with application of manure (2.0 Mg ha−1 FYM-C) every year showed the highest impact on soil carbon sequestration and carbon management index. Under a particular manure treatment, carbon storage was higher under no-tillage in the 0–5 cm soil depth, whereas it was higher under reduced tillage in the 5–15 cm soil layer. © 2015, The National Academy of Sciences, India.
Tripathi M.K.,Central Institute of Agricultural Engineering CIAE |
Kaushik G.,Central Institute of Agricultural Engineering CIAE |
Unnikrishnan D.,Central Institute of Agricultural Engineering CIAE |
Gupta U.,Central Institute of Agricultural Engineering CIAE
Medicinal Plants | Year: 2013
This study has been aimed to determine the effect of processing of Indian soybean on proximate composition, total phenolic content, total flavanoid content and antioxidant activity. High protein content and low fat was found in germinated soybean. The total phenolic content varied with soybean samples (Soybean seeds: 27 mg of GAE/ g, soy flour: 23 mg of GAE/g, soymilk: 9 mg of GAE/g and germinated soybean seeds: 24 mg of GAE/g). Amongst the soybean and soy products, the total flavanoid content varied with samples. The antioxidant activity of soybean and soy products were directly related to the total phenolic and total flavanoid contents.