Irrigation Management in Command Areas COLLEGE OF AGRICULTURAL ENGINEERING JNKVV Jabalpur.

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Presentation transcript:

Irrigation Management in Command Areas COLLEGE OF AGRICULTURAL ENGINEERING JNKVV Jabalpur

Irrigation Efficiency at Field level Total Field application losses Field and Water Courses Distributaries Main canal and Branches TotalEvaporationSeepageSources of losses

Factors affecting Water Use Efficiency Genetic factors –Water use efficiency of C4 plant species such as maize, sorghum, sugarcane, pearl millet, finger miller etc is higher (3.14 to 3.44 mg dry weight/g of water) when compared to C3 species (1.49 to 1.59 mg dry weight/g of water) such as pulses, oilseed crops, wheat, barley, oats etc. Climatic factors Crop management factors Challenges –projected demand of about 450 million tones food grains by Challenge is therefore to achieve higher food grain production with reduced availability of water.

How to Enhance Water Productivity in Irrigated Commands Improving control over water delivery and its potential impact Changes in input use and potential impacts on water productivity Potential impacts of improving quality of irrigation and water allocation Allocating water across regions and productivity gains at the basin level

Module 2 V for ADA/ADH and other officers 1.Surface irrigation methods 2.Drip irrigation method 3.Soil moisture measurement, scheduling of irrigation 4.Surface drainage 5.On farm reservoirs and water recycling 6.Participatory Irrigation Management 7.Watershed management 8.Canal distribution network Water Management

Extendable Technology Average yield of soybean is rising from 9.8 to 15.9 q/ha (67% increase) An average WUE change from 0.85 to 2.68 kg/cum. This is an increase of to 743 %. It was possible by adapting Scientific package of practices Ridge-furrow system of sowing, and Short duration variety of soybean. Maximum rise has been observed with ridge-furrow method of cultivation. Yield (Q/ha)WUE(kg/m 3 ) CropBasinVarietyTechnolo gy Demonst rated Number FPIP% IncreaseFPIP% Increase SoybeanKenJS-97-52,SPP SoybeanKenJS R & F SoybeanTonsJS-93-05SSP SoybeanTonsJS-93-05R & F SoybeanTonsJS-93-05SDV SoybeanBetwaJS-93-05SPP, SDV Max Min AVE Soybean : Ridge & Furrow system of sowing, Short duration variety

Ridge & Furrow system of sowing in Soybean

SRI method in Rice cultivation and change in local variety resulted inSRI method in Rice cultivation and change in local variety resulted in 44 percent rise in average yields and44 percent rise in average yields and 139 percent in WUE.139 percent in WUE. Yield (Q/ha)WUE(kg/m 3 ) CropBasinVarietyTechnol ogy Demon strated Number FPIP % Increas eFPIP % Increase RiceKenMR-219SRI RiceTons Pusa basmati-1 SRI RiceTons Pusa basmati-1 RV Max Min AVE Rice: SRI Method, improved variety

SRI Method in Rice Transplanting of 12 days nursery Crop at 35 days age Crop at maturity stage

Wheat shows a gain of 37 percent in yield and 69 percent in WUE. Yield (Q/ha)WUE(kg/m 3 ) CropBasinVarietyTechnology Demonstrated Number FPIP % IncreaseFPIP % Increase WheatTonsGW 273SPP,NV WheatTonsGW 273SPP WheatKenJW- 366IPT, IS WheatKenJW- 366SPP min max AVE Wheat: Improved production technology with irrigation scheduling

Due to change in local variety by improved variety the mean yields of vegetables Yield increases by 55 percent WUE increases by 191 percent. Yield (Q/ha)WUE(kg/m 3 ) CropBasinVarietyNumber FPIP%FPIP% TomatoKenNirmal- 960 (Hybrid )STK OkraKenNirmal -15(Hybrid )IY OkraTons F-1Hybrid (Varsa) SPP TomatoTons F-1Hybrid (Nunhems- 5005) SPP, HV BrinjalTonsNishi-52SPP, HV ChillyTonsVNR-22 (Hybrid)SPP, HV OkraBetwaSungro S-51SPP, RDF OkraTons F-1Hybrid (Varsa) SPP, HYV OnionKenNasik RedIPT min max AVE Vegetables: Improved variety

Particulars BIJOREE WUA GOVINDGARH WUA BAUCHHAR WUA LocationJabalpurRewaNarsinghpur No. of Minors986 GCA, ha CCA, ha Comparative Performance of Water User Association Three WUAs Bijori, Bauchar and Govindgarh of Jabalpur, Narsinghpur and Rewa district The aim was to find out the factors responsible for the functioning of Water User Association and its performance To find out the factors responsible for project performance

Variation of wheat yields with reach wise water utilization

Water productivity at head reach in different WUA's WUA Name Farmer Category Water Productivity (kg/m 3 ) WheatGramPea Bijori WUAMarginal Small Medium Large Govindgarh WUAMarginal Small Medium Large Bauchhar WUAMarginal Small Medium Large

Water productivity at middle reach in different WUA's WUA NameFarmer Category Water Productivity (kg/m 3 ) WheatGramPea Bijori WUAMarginal Small Medium Large Govindgarh WUA Marginal Small Medium Large Bauchhar WUAMarginal Small Medium Large

Water productivity at tail reach in different WUA's WUA NameFarmer CategoryWater Productivity (kg/m 3 ) WheatGramPea Bijori WUAMarginal Small Medium Large Govindgarh WUAMarginal Small Medium Large Bauchhar WUAMarginal1-- Small Medium Large

Causes of Variation in Water Productivity Evaluation of Project Performance through indicators on  Delivery  Maintenance  Financial  Sustainability Evaluation of WUA Functions Level of participation Operation and management Water management Financial management Organizational

Significant findings Water productivity is highest 1.37 kg/m 3 in WUA3 at Govindgarh. due to participation of water users in management The tail-end supply ratio ( 0.67) is also highest Medium farmers normally have GW source and hence apply water at appropriate time thus depicts higher WP WP is lowest in head reach due to over irrigation.

Water Productivity of Wheat Under Drip Irrigation Water productivity of drip irrigated wheat was 44.52% more than the flood irrigation Water productivity was found maximum with one lateral in three rows with dripper placed at 30 cm.

Thanking You for the cause of water