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Shrimali, S. S.
- Impact of Pusa Hydrogel Application on Yield and Productivity of Rainfed Wheat in North West Himalayan Region
Abstract Views :221 |
PDF Views:79
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.Full Text
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- Process-based modelling of soil erosion: scope and limitation in the Indian context
Abstract Views :228 |
PDF Views:89
Authors
Saswat Kumar Kar
1,
Suresh Kumar
2,
M. Sankar
3,
S. Patra
3,
R. M. Singh
4,
S. S. Shrimali
3,
P. R. Ojasvi
3
Affiliations
1 ICAR-Indian Institute of Soil and Water Conservation, Dehradun 248 195, India; Institute of Agricultural Sciences, Banaras Hindu University, Varanasi 221 005, IN
2 Indian Institute of Remote Sensing, Indian Space Research Organization, Dehradun 248 001, IN
3 ICAR-Indian Institute of Soil and Water Conservation, Dehradun 248 195, IN
4 Institute of Agricultural Sciences, Banaras Hindu University, Varanasi 221 005, IN
1 ICAR-Indian Institute of Soil and Water Conservation, Dehradun 248 195, India; Institute of Agricultural Sciences, Banaras Hindu University, Varanasi 221 005, IN
2 Indian Institute of Remote Sensing, Indian Space Research Organization, Dehradun 248 001, IN
3 ICAR-Indian Institute of Soil and Water Conservation, Dehradun 248 195, IN
4 Institute of Agricultural Sciences, Banaras Hindu University, Varanasi 221 005, IN
Source
Current Science, Vol 122, No 5 (2022), Pagination: 533-541Abstract
The conservation and sustainability of natural resources, particularly soil and water, are crucial for agricultural yield and livelihood. Soil erosion models simulate the influence of existing farm management patterns as well as soil conservation interventions affecting soil erosion rates and accordingly recommend appropriate management techniques. The erosion models might be helpful for forecasting soil erosion, sediment load and evaluating the effectiveness of conservation measures. Although numerous empirical, conceptual or physical process-based models are used to study soil erosion, they differ in respect of input data requirements, representation of physical processes, sediment yield, and limitations due to their spatial and temporal variations. Due to limitations in empirical models in describing the erosion process, some process-based models may be used to quantify the state of soil erosion in a region. Before use, the available erosion models must be evaluated and validated for local circumstances. In this respect, the present study has been carried out to provide a critical review of various soil erosion models used worldwide, having different climatic parameters for determining soil erosion rate, run-off and sediment yield status.Keywords
Conservation measures, natural resources, process-based models, run-off, sediment yield, soil erosion.Full Text
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