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Roy, Trisha
- Role of arbuscular mycorrhizal fungi in soil and water conservation: a potentially unexplored domain
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Authors
Affiliations
1 ICAR-Indian Institute of Soil and Water Conservation, Dehradun 248 195, IN
1 ICAR-Indian Institute of Soil and Water Conservation, Dehradun 248 195, IN
Source
Current Science, Vol 120, No 10 (2021), Pagination: 1573-1577Abstract
There is a general consensus that nature-based biological measures can be used as a valuable tool to improve land quality. Microbial technology, e.g. use of mycorrhizal fungi, has been considered a beneficial option in the rehabilitation of disturbed and degraded lands. Mycorrhizal fungi are extremely important to improve soil aggregation and in turn the porosity, erodibility and even soil fertility. This article provides an insight into how mycorrhizal fungi might play a role in reclamation and revegetation of degraded lands with special focus on soil and water conservation. External hyphae of arbuscular mycorrhizal fungi (AMF) can bind the small soil particles into micro aggregates by producing a glycoprotein (glomalin) which alone can account for 30–60% of carbon in undisturbed soils. Glomalin is derived specifically from the hyphae of AMF and has not been reported in any other fungal species. Besides agriculture, the presence of AMF in the grassland and forest ecosystems is also of great significance as it helps in establishment of native plant species, soil improvement and carbon storage. The increasing interest of soil conservationists in this glycoprotein is also highlighted in this article.Keywords
Arbuscular mycorrhizal fungi, carbon storage, degraded lands, glycoprotein, soil and water conservation.References
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- Impact of Pusa Hydrogel Application on Yield and Productivity of Rainfed Wheat in North West Himalayan Region
Abstract Views :368 |
PDF Views:122
Authors
Trisha Roy
1,
Suresh Kumar
1,
Lekh Chand
1,
D. M. Kadam
1,
Bankey Bihari
1,
S. S. Shrimali
1,
Rajesh Bishnoi
1,
U. K. Maurya
1,
Madan Singh
1,
M. Muruganandam
1,
Lakhan Singh
1,
S. K. Sharma
1,
Rakesh Kumar
1,
Anil Mallik
1
Affiliations
1 ICAR-Indian Institute of Soil and Water Conservation, Dehradun 248 195, IN
1 ICAR-Indian Institute of Soil and Water Conservation, Dehradun 248 195, IN
Source
Current Science, Vol 116, No 7 (2019), Pagination: 1246-1251Abstract
Farmers in the North West Himalayan region generally practise rainfed agriculture and have very limited scope for irrigation. Water scarcity is a major constraint for crop production in these areas. This problem exacerbates further during the Rabi season where vagaries of winter rain result in complete crop failure. This study was conducted in the Raipur Block of Dehradun district in the farmer’s field to study the impact of hydrogel on yield and productivity of wheat. Hydrogel is a hydrophilic polymer having high water holding capacity and can provide water to crops during moisture stress. Hydrogel was applied in the field in Rabi wheat with two broad treatments, i.e. with hydrogel (WH) and without hydrogel (WHO). Each treatment was replicated ten times, i.e. ten demonstrations were laid out in the field conditions. Hydrogel was applied at the rate of 5 kg ha–1 and observations related to various plant growth parameters and yield were recorded. The plant population in hydrogel plots increased by 22% compared to the non-hydrogel treated plots. The effective tillers, plant height, ear length and grains per ear significantly improved due to hydrogel application. The total yield as well as grain yield increased significantly after hydrogel amendment. The improved performance of wheat upon hydrogel application was evident in the field. This technology could be promising in terms of productivity improvement of rainfed crops and in combating the moisture stress in agriculture.Keywords
Hydrogel, Northwest Himalayas, Rainfed Wheat, Yield.References
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