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Dwivedi, G. K.
- Soil Organic Carbon Pools under Terminalia chebula Retz. based Agroforestry Systemin Himalayan Foothills, Indiax
Abstract Views :245 |
PDF Views:86
Authors
Amit Kumar
1,
G. K. Dwivedi
1,
Salil Tewari
1,
Jaipaul
1,
V. K. Sah
1,
Hukum Singh
2,
Parmanand Kumar
2,
Narendra Kumar
2,
Rajesh Kaushal
3
Affiliations
1 Agroforestry Section, College of Agriculture, G.B. Pant University of Agriculture and Technology, Pantnagar, U.S. Nagar 243 145, IN
2 Forest Ecology and Climate Change Division, Forest Research Institute, Dehradun 248 006, IN
3 ICAR-Indian Institute of Soil and Water Conservation, Dehradun 248 001, IN
1 Agroforestry Section, College of Agriculture, G.B. Pant University of Agriculture and Technology, Pantnagar, U.S. Nagar 243 145, IN
2 Forest Ecology and Climate Change Division, Forest Research Institute, Dehradun 248 006, IN
3 ICAR-Indian Institute of Soil and Water Conservation, Dehradun 248 001, IN
Source
Current Science, Vol 118, No 7 (2020), Pagination: 1098-1103Abstract
Knowledge of carbon (C) pools in soils is helpful in devising practices for efficient carbon management in intensive cropping systems. Carbon fractions of soil organic carbon are used asan indicator for land-use induced change in soil quality. The present study evaluated carbon pools under Terminalia chebula(chebulic myrobalan) based agroforestry system supplied with different nutrient sources, viz. farmyard manure, poultry manure, vermicompost, wheat straw and inorganic fertilizer (NPK @ 100:80:60). Carbon fractions, viz. very labile (C1 frac), labile (C2 frac), less labile (C3 frac) and non-labile (C4 frac), were analysed at 0–15 and 15–30 cm soil depth. The higher value of C1 frac (13.8%), C2 frac (4.8%), C3 frac (8.3%) and C4 frac(11.1%) were recorded under agroforestry as compared to open system. Among the nutrient sources, all the carbon fractions were higher under 100% integrated nutrient sources as compared to controlled treatment. Microbial biomass carbon (MBC) was recorded higher (298.31 μg g–1 ) under agroforestry system compared to the open system (290.63 μg g–1 ) at 0–15 cm. Among the different nutrient sources, higher MBC (458.66 μg g–1 ) at 0–15 cm and lower (340.59 μg g–1 ) at 15–30 cm soil depth was recorded in 100% integrated treatment.Thus, agroforestry-based land-use types and integrated nutrient management are more efficient for soil health and carbon management in Himalayan foothills.Keywords
Active Pool, Carbon Fractions, Labile, Nonlabile, Nutrient Sources, Passive Pool.Full Text
References
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- Characterization of Synthesized Zinc Oxide Nanoparticles and Their Effect on Growth, Productivity and Zinc Use Efficiency of Wheat And Field Pea in the Indian Himalayan Foothills
Abstract Views :97 |
PDF Views:57
Authors
Affiliations
1 G.B. Pant University of Agriculture and Technology, Pantnagar 263 145, India., IN
2 G.B. Pant University of Agriculture and Technology, Pantnagar 263 145, India., IN
3 G.B. Pant University of Agriculture and Technology, Pantnagar 263 145, India; Forest Research Institute, Dehradun 248 006, India., IN
1 G.B. Pant University of Agriculture and Technology, Pantnagar 263 145, India., IN
2 G.B. Pant University of Agriculture and Technology, Pantnagar 263 145, India., IN
3 G.B. Pant University of Agriculture and Technology, Pantnagar 263 145, India; Forest Research Institute, Dehradun 248 006, India., IN
Source
Current Science, Vol 124, No 11 (2023), Pagination: 1319-1328Abstract
Nanofertilizers have emerged as an effective alternative to traditional fertilizers. They contribute to increased agricultural production by increasing input efficiency and reducing relevant losses. The present study was carried out at the G.B. Pant University of Agriculture and Technology, Pantnagar, Uttarakhand, India, during 2016–17 to study the effect of synthesized zinc oxide nanoparticles (ZnO NPs) on the growth and productivity of wheat and field pea crops. The results of the study revealed that significantly greater wheat and field pea plant height was recorded with 10, 20 and 50 ppm concentration of ZnO NPs, which decreased at 100 ppm concentration. A significantly higher yield of wheat was recorded at 50 ppm ZnO NPs concentration (3.28 ± 0.51 g plant–1), followed by 20 ppm (3.05 ± 0.43 g plant–1), which was at par with 100 ppm (3.02 ± 0.45 g plant–1), and the minimum at 10 ppm concentration (2.70 ± 0.34 g plant–1) over control. A similar trend in yield was observed for field pea. With respect to the mode of application, a higher yield of wheat was observed in the seed-soaking method (3.05 ± 0.43 g plant–1); however, in the case of field pea, a higher yield was observed using foliar spray (6.21 ± 0.52 g plant–1) method of ZnO application. Higher Zn content was observed in 50 ppm concentration for wheat (42.39 mg g–1) and field pea (26.00 mg g–1). The higher Zn use efficiency in terms of physiological efficiency was recorded at 20 ppm concentration (1.46) for wheat and 10 ppm (5.51) for field pea. Hence, it can be concluded that the applied ZnO NPs have stimulating effects on wheat and field pea crop growth and yield through increased zinc content in plants, zinc uptake and zinc use efficiency.Keywords
Field Pea Nanofertilizers, Growth and Productivity, Wheat, Zinc Oxide Nanoparticles.Full Text
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