Your search found 10 records
1 Singh, D.. 1981. An appraisal of water use and management: Presidential address. Annals of Agricultural Research, 2(1-2):1-14.
(Location: IWMI-HQ Call no: P 1426 Record No: H01449)
2 Singh, D.; Sudarya, D. 1979. Design of border irrigation systems. In Proceedings of the Workshop on Conjunctive Use of Surface and Ground Water, Roorkee, India, 12-14 April 1979. Vol. 1. Roorkee, India: Water Resources Development Centre, University of Roorkee. pp.wm93-wm106.
(Location: IWMI-HQ Call no: 631.7.6.3 G635 PRO Record No: H04921)
3 Tripathi, S. K.; Singh, D.. 1980. Fertilizer management in wheat for efficient use of water. In International Symposium on Water Resources Systems, December 20-22, 1980: Proceedings, Volume 1. Meerut, India: Sarita Prakashan. pp.IV/13/77-79.
(Location: IWMI-HQ Call no: 333.91 G000 INT Record No: H017517)
4 Singh, D.. 2002. Groundwater markets in fragile environments: Key issues in sustainability. Indian Journal of Agricultural Economics, 57(2):180-196.
(Location: IWMI-HQ Call no: PER Record No: H030331)
5 Malik, R. S.; Kumar, R.; Dabas, D. S.; Dhindwal, A. S.; Singh, S.; Singh, U.; Singh, D.; Mal, J.; Khatri, A. S.; Bassembinder, J. J. E. 2003. Measurement program and description data base. In van Dam, J. C.; Malik, R. S. (Eds.), Water productivity of irrigated crops in Sirsa district, India: Integration of remote sensing, crop and soil models and geographical information systems. Haryana, India: Haryana Agricultural University; Colombo, Sri Lanka: International Water Management Institute (IWMI); Wageningen, Netherlands: Wageningen University; Wageningen, Netherlands: WaterWatch. pp.29-39.
Wheat ; Cotton ; Rice ; Soil water ; Water measurement ; Irrigation water ; Crop production ; Canal irrigation / India / Sirsa
(Location: IWMI-HQ Call no: IWMI 631.7.1 G635 VAN Record No: H033892)
(3.65MB)
6 Singh, D.. 2004. Livelihood concerns in water resources management regimes in scarce conditions. Indian Journal of Agricultural Economics, 59(1):121-137.
Water resource management ; Irrigation programs ; Gender ; Land resources ; Livestock ; Households ; Income ; Food security ; Risks / South Asia / India / Rajasthan
(Location: IWMI-HQ Call no: PER Record No: H034911)
7 Singh, D.. 2003. Groundwater markets and institutional mechanism in fragile environments. In Chopra, K.; Hanumantha Rao, C. H.; Sengupta, R. (Eds.). Water resources, sustainable livelihoods and eco-system services. New Delhi, India: Concept publishing Company, for Indian Society for Ecological Economics. pp.311-340.
Groundwater ; Water market ; Policy ; Water rights ; Water law ; Land use / India / Rajasthan / Nagaur district / Kukanwali village / Alwar district / Srichandpura village
(Location: IWMI HQ Call no: 333.91 G635 CHO Record No: H040958)
8 Vashishtha, P. S.; Singh, D.. 2008. Complict and inequality in surface irrigation: a socio-ecological perspective. In Kumar, M. Dinesh (Ed.). Managing water in the face of growing scarcity, inequity and declining returns: exploring fresh approaches. Proceedings of the 7th Annual Partners Meet, IWMI TATA Water Policy Research Program, ICRISAT, Patancheru, Hyderabad, India, 2-4 April 2008. Vol.2. Hyderabad, India: International Water Management Institute (IWMI), South Asia Sub Regional Office. pp.808-818.
(Location: IWMI HQ Call no: IWMI 631.7 G635 KUM Record No: H042933)
(0.03 MB)
This paper attempts to understand the role of institutions and governance, in explaining unequal access to canal water under different rules of the game. Two states at different levels of agricultural productivity with different rules of distribution of canal water are chosen to study the problem at project level. While Bihar, at low level of agricultural productivity, represents absence of scientific method of distribution of water, Punjab offers high level of agricultural productivity with the warabandi system. The two case studies offer interesting similarities and dissimilarities in terms of unequal access to water by the tail enders and mechanisms needed to mitigate this inequality. Some similarities are: (a) the tail enders suffer the most with low access to water forcing them to adopt only low water intensive crops in comparison to the head reach and mid reach farmers; and (b) the farmers supplement canal water with ground water. The dissimilarities noticed are: (a) while over exploitation of ground water in Punjab has reached levels beyond natural recharge of aquifers in several places; in Bihar, with low withdrawal of ground water and natural endowment of high water table, such a situation has not arisen; (b) the breaking of canal and water courses for own benefit by the powerful with political clout is rampant in Bihar, rarely attracting a penalty from the irrigation department; (c) the water market for tubewell water (Rs.70 to 80 per hour) has developed in Bihar partly mitigating inequality in access to canal water by the tail enders; no such phenomenon is common in Punjab. The plausible reason for the low density of tubewells in Bihar in contrast to Punjab is low incomes making affordability of tubewell an issue, and (d) cooperative efforts by farmers to lay down pipes through neighbors’ plots to minimize loss of water has succeeded in Punjab; in Bihar such efforts succeeded initially at a small scale but could not sustain without government assistance. The absence of scientific rule for distribution of canal water and the weak canal governance system aggravates the misery of tail enders. In such a scenario, the mitigation of unequal access to water by the tail enders is facilitated by the development of water markets at high cost in a complex situation with tiny holdings and lack of cooperation among the farmers.
9 Dutta, S. K.; Singh, D.; Sood, Aditya. 2011. Effect of soil chemical and physical properties on sorption and desorption behavior of lead in different soils of India. Soil and Sediment Contamination, 20(3):249-260. [doi: https://doi.org/10.1080/15320383.2011.560979]
Soil chemicophysical properties ; Sorption ; Desorption ; Lead ; Statistical methods ; Analytical methods ; Multiple regression analysis ; Models ; Soil sampling ; Chemical composition / India
(Location: IWMI HQ Call no: e-copy only Record No: H043832)
(0.25 MB)
Lead (Pb) is a non-biodegradable contaminant, present in the environment, especially near lead-based industrial sites, agricultural lands, and roadside soils. Bioavailability of Pb in the soil is controlled by the sorption and desorption behavior of Pb, which are further controlled by the soil chemical and physical properties. In this study, sorption and desorption amounts of Pb in soil were compared with soil physical (sand, silt, clay content) and chemical (pH; electrical conductivity, EC; percent organic carbon, (%OC);cation exchange capacity, CEC) properties. Twenty-six surface soils (0–5cm), expected to vary in physical and chemical properties, were collected from different parts of India and were treated with known concentration of Pb solution (40 µg/L). The amount of Pb sorbed and desorbed were measured and correlated with soil properties using simple linear regressions. Sorption was significantly (p = 0.05) and positively correlated with pH, and %OC; desorption was significantly (p = 0.05) negatively correlated with the same two factors. Stepwise multiple regressions were performed for better correlations. Predicted sorption and desorption amounts, based on multiple regression equations, showed reasonably good fit (R2 = 0.79 and 0.83, respectively) with observed values. This regression model can be used for estimation of sorption and desorption amounts at contaminated sites.
10 Patra, S.; Parihar, C. M.; Mahala, D. M.; Singh, D.; Nayak, H. S.; Patra, K.; Reddy, K. S.; Pradhan, S.; Sena, Dipaka Ranjan. 2023. Influence of long-term tillage and diversified cropping systems on hydro-physical properties in a sandy loam soil of North-western India. Soil and Tillage Research, 229:105655. [doi: https://doi.org/10.1016/j.still.2023.105655]
Cropping systems ; Diversification ; Tillage ; Hydraulic conductivity ; Soil physical properties ; Sandy loam soils ; Soil aggregates ; Soil organic carbon ; Conservation agriculture ; Maize ; Wheat ; Mung beans ; Chickpeas ; Mustard ; Sesbania / India / New Delhi
(Location: IWMI HQ Call no: e-copy only Record No: H051761)
(2.53 MB)
A study was conducted to determine the combined effects of three tillage practices and four maize (Zea mays L.)- based cropping systems on physical, saturated, and near-saturated hydraulic properties in a sandy loam soil of North-Western India. Split-plot experimental design was adopted with tillage [conventional tillage (CT), zero tillage (ZT), and permanent raised bed (PB)] as the main plot treatments and intensified crop rotations [Maize (Zea mays L.)-Wheat (Triticum aestivum)-Greengram (Vigna radiata L.) (MWGg), Maize-Chickpea (Cicer arietinum L.)-Sesbania (Sesbania aculeata) (MCpSb), Maize-Mustard (Brassica juncea) -Greengram (MMuGg) and MaizeMaize-Sesbania (MMSb)] as subplot treatments. The saturated and near-saturated soil hydraulic conductivity were derived from steady-state infiltration rates measured using a hood infiltrometer on the surface soil at 0, - 1, and - 3 cm pressure heads. The long-term (10 years) study revealed that the bulk density (BD) of the soil under conservation agriculture (CA) practices (PB and ZT) was significantly (P = 0.05) lower than that in CT practices. The soil BD in the MCpSb cropping system was measured to be the lowest (1.24 g cm- 3 ) among all the cropping systems. The soil aggregate mean weight diameter (MWD) under PB and ZT was determined to be 31% and 27% higher than in the CT treatments. In tillage × cropping systems interactions, the highest MWD was observed in the PB×MWGg. The saturated and near-saturated hydraulic conductivity (K(h)) were estimated to have higher values in CA practices (PB and ZT) than in the CT treatments. In the case of cropping systems, the soil’s mean field saturated hydraulic conductivity was estimated to be significantly (P < 0.05) higher under the MWGg, MCpSb, and MMuGg than the MMSb. The present study indicates that conservation agriculture-based crop management with diversified maize-based rotation (MCpSb, MWGg, and MMuGg) could be promising alternatives to conventional tillage practices (CT). Among the cropping system choices, MWGg was more effective in improving the soil’s hydro-physical properties in the study area.
Powered by DB/Text WebPublisher, from
