Land & Water Management for Drought Proofing K. K. Sahu Professor, Soil Science & Agril. Chem. R. K. Sahu Dean - Faculty of Agricultural Engineering Indira Gandhi Krishi Vishwavidyalaya Raipur 492 006 (Chhattisgarh), India for presentation in the International Conference on “Environl. Knowledge for disaster Risk Manag (ekDRM-2011).” New Delhi, May 10-11, 2011
22
Embed
Land & Water Management for Drought Proofing K. K. Sahu Professor, Soil Science & Agril. Chem.
Land & Water Management for Drought Proofing K. K. Sahu Professor, Soil Science & Agril. Chem. R. K. Sahu Dean - Faculty of Agricultural Engineering Indira Gandhi Krishi Vishwavidyalaya Raipur 492 006 (Chhattisgarh), India for presentation in the International Conference on - PowerPoint PPT Presentation
This document is posted to help you gain knowledge. Please leave a comment to let me know what you think about it! Share it to your friends and learn new things together.
Transcript
Land & Water Management for Drought Proofing
K. K. Sahu
Professor, Soil Science & Agril. Chem.R. K. Sahu
Dean - Faculty of Agricultural EngineeringIndira Gandhi Krishi VishwavidyalayaRaipur 492 006 (Chhattisgarh), India
for presentation in the
International Conference on “Environl. Knowledge for disaster Risk Manag (ekDRM-2011).”
New Delhi, May 10-11, 2011
Farmer's OFR Seed yield of rice (q/ha)
Without OFR With OFR
2001-02 2002-03 2003-04 Mean 2001-02 2002-03 2003-04 Mean
OFR1 27.5 16.4 34.4 26.1 43.8 46.1 41.3 43.7
OFR2 23 15.2 31.3 23.2 56.1 47.1 43.6 48.9
OFR3 20.9 16 26.8 21.2 54.1 41.2 39.9 45.1
OFR4 27.8 16.9 30.1 24.9 41.2 36.6 33.8 37.2
OFR5 29.9 17.7 29.3 25.6 51.4 48.2 35.9 45.2
OFR6 25.9 18.9 32 25.6 43.3 38.2 41.4 41.0
OFR7 28.9 20.4 27.2 25.5 45.3 39.6 33.8 39.6
OFR8 24.9 17.7 29.7 24.1 46.2 42.3 36.5 41.7
OFR9 26.5 18.5 27.9 24.3 49.2 42.1 34.8 42.0
OFR10 - 17.1 28.3 22.7 - 44.4 36.3 40.4
OFR11 22.5 15.5 29.2 22.4 56.9 50.1 38.7 48.6
Mean 25.8 17.3 29.7 24.2 48.8 43.3 37.8 43.0
Rice yield with and without water harvesting structures
Farmer's OFR
Seed yield of rice (q/ha) Extra Income due to OFR
Without OFR With OFR2001-02 2002-03 2003-04 Mean 2001-02 2002-03 2003-04 Mean
* % share in the state,** % share in culturable wasteland, +(Source : Chhattisgarh Govt.- Annual Agriculture Statistics, 2009. Office of the Commissioner Land Records)
Fig.3: Plant height as influenced by moisture conservation measures
Fig.4: Breast height diameter as influenced by moisture conservation measures
Fig.5: Plantations intercropped with green gram.
Fig.6: View of developed plantations in wasteland.
SMW Barren land
PlantationsKhamar Sissoo Aonla Kalasiris Jetropha Average
Evaluation of micro irrigation in plantations and vegetables
ConclusionThe rice productivity in OFR increased by one and half times to that
without OFR. Rice yield in OFR supported area during drought year was equivalent to those obtained in normal rainfall years.
The income from OFR based farming was 2.1 times higher than without OFR.
The innovative technique of constructing temporary check dams increases the area under double crop, in the surrounding area of rivulets and rivers.
Stylo scabra and Anjan was found suitable for Entisols under rainfed condition (biomass productivity: Stylo-25.75 q/ha, Anjan-12.43q/ha). The tree species namely Emblica officinalis, Albizia lebbeck, Dalberzia sissoo and the Stylo scabra as intercrop performed well in comparison to others.
Share of runoff (24.1%) from plantations + grasses/crops + conservation measures as compared to barren land (37.1%) signifies their role in in-situ moisture conservation, necessary for biomass production.
The staggered trenches were found effective in trapping sediments and supplying moisture to young plantations.
Vegetables and fish rearing were found remunerative. Grasses were cut by local villagers and used for animals.
The silvipasture treated land progressively improved the soil health. Tree plantation in wastelands can be made economically
attractive and socially acceptable by intercropping of legumes, grasses, fodder and vegetables with fish in ponds. In order to promote vegetables, micro irrigation can be used.