Up-Scaling Model for Micro Irrigation in Tamil Nadu, India

2016 ◽  
pp. 115-122
Keyword(s):  
Tamil Nadu ◽  
Scaling Model ◽  
Micro Irrigation ◽  
Up Scaling

Preparation of thin film Cu–Pt(111) near-surface alloys: One small step towards up-scaling model single crystal surfaces

2013 ◽  
Vol 112 ◽  
pp. 887-893 ◽  
Author(s):  
John B. Henry ◽  
Artjom Maljusch ◽  
Jakub Tymoczko ◽  
Wolfgang Schuhmann ◽  
Aliaksandr S. Bandarenka
Keyword(s):  
Thin Film ◽  
Single Crystal ◽  
Surface Alloys ◽  
Small Step ◽  
Crystal Surfaces ◽  
Near Surface ◽  
Single Crystal Surfaces ◽  
Scaling Model ◽  
Up Scaling

scholarly journals Socio-economic impacts of the adoption of MIS (Micro-irrigation system) among small and marginal farmers of Coimbatore district, India

2020 ◽  
Vol 12 (3) ◽  
pp. 312-318
Author(s):  
S. Kiruthika ◽  
D. Suresh Kumar
Keyword(s):  
Tamil Nadu ◽  
Irrigation System ◽  
Research Work ◽  
Poor Quality ◽  
Discounted Cash Flow ◽  
Irrigation Intensity ◽  
Coimbatore District ◽  
Micro Irrigation ◽  
Extended Area ◽  
Irrigation Technologies

Considerable attention has been given to micro-irrigation technologies by policymakers to help farmers in overcoming water scarcity problems. In this paper, the potential impacts of MIS on farmers’ livelihood and economic viability of using drip in banana cultivation were analyzed using discounted cash flow techniques. The study focused on small and marginal farmers of Coimbatore district of Tamil Nadu as they were provided with 100% subsidy. Adoption of MIS increased the total cropped area (6.54%), extended area under irrigation (6.55%), increased cropping intensity (69.19%) and irrigation intensity (70.95%). Investment on drip irrigation system by farmers were found financially feasible (NPV Rs.43,851.16, BCR 1.42 and IRR 30.88%). The study also brought out the constraints faced by farmers in the adoption of MIS such as lack of technical support, the inefficiency of the system with poor quality water and damage caused by animals. The research work would be helpful in understanding the advantages of using MIS by small and marginal farmers and problems encountered by them in adoption even though the investment was economically viable.  

scholarly journals Rainfall Uncertainty and Drought Proofing Strategies by farmers in Southern India

2019 ◽  
Vol 1 (1) ◽  
pp. 35-40
Author(s):  
Palanisami K ◽  
Suresh Kumar D ◽  
Mohanasundari T
Keyword(s):  
Water Conservation ◽  
Tamil Nadu ◽  
Demand Management ◽  
Management Strategies ◽  
Mitigation Strategies ◽  
Financial Return ◽  
Life Saving ◽  
Drought Mitigation ◽  
Micro Irrigation ◽  
Crops Yield

Droughts are a common occurrence in semi-arid areas and their frequency and intensity is expected to increase further with increasing variability in rainfall distribution. Based on a study of 120 farmers from 4 districts in Karnataka and Tamil Nadu, this paper identified the range of measures farmers adopt in response to droughts. Despite significant negative externalities, farmers assign higher priority to drilling new wells rather than investing in water conservation structures or demand management strategies. Among the different strategies followed, adoption of drip irrigation and purchase of tanker water for providing life-saving irrigation to perennial crops yield the highest financial return. Expansion of micro irrigation and reuse of municipal waste water are suggested as drought mitigation strategies.

Natural parasitism of eggs of yellow stem borer, Scirpophaga incertulas Walker (Lepidoptera: Crambidae) in rice ecosystem at Tiruchirappalli, Tamil Nadu

ENTOMON ◽  
2020 ◽  
Vol 45 (3) ◽  
pp. 181-188
Author(s):  
T. Sharmitha ◽  
C. Gailce Leo Justin ◽  
S. Sheeba Joyce Roseleen ◽  
P. Yasodha
Keyword(s):  
Field Study ◽  
Tamil Nadu ◽  
Host Density ◽  
Stem Borer ◽  
Scirpophaga Incertulas ◽  
Egg Masses ◽  
Yellow Stem Borer ◽  
Rice Ecosystem ◽  
Natural Parasitism

Three species of parasitoids viz., Telenomus dignus Gahan, Trichogramma japonicum, Ishii and Tetrastichus schoenobii Ferriere were recorded from the egg masses of rice yellow stem borer, Scirpophaga incertulas (Walker) in a field study. The extent of parasitism was high during Rabi (43.33 – 93.33 %) and low during Kharif (0 - 40.00 %). Parasitism by T. dignus was maximum in October (50.00 %), T. japonicum, in November (23.08 %) and T. schoenobii in February (55.55 %). dignus and T. schoenobii in combination parasitized maximum number of egg masses (41.82 %). Multiple parasitism by the three species was high in December (8.33 %) and January (7.14%). Parasitic potential was maximum, when T. schoenobii alone parasitised the egg masses followed by T. dignus and T. schoenobii in combination. Host density in the field influenced the extent of parasitism.

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