Title: Increasing Resources Use Efficiency and System Productivity in RiceWheat Systems of IndoGangetic Pla
1Increasing Resources Use Efficiency and System
Productivity in Rice-Wheat Systems of
Indo-Gangetic Plains (Karnal Site)
2OBJECTIVES
- Quantify the impact of Resource conservation
tillage RCT on - Water use at farm water course and distributary
level - 2. On ground water recharge and salt balance
3Site Selection
4(No Transcript)
5Narwana Branch Canal
6Pabnawa Minor, near Head
7Particulars of selected watercourses of Pabnawa
distributary
Total length of distributary36 km, Gross command
area GCA24176 ac Cultivable command area CCA
21226 ac
8Typical watercourse outlet structure Adjustable
Proportional Module (APM) Designed to give fixed
discharge when canal is operated close to design
discharge
9PARTICULARS OF SELECTED OUTLETS
- RD NO. GA/CCA (acre) IRRIG. AREA
(acre) H B Y
SIZE(cfs) - 2820R 572/516 67
0.84 0.25 0.47
1.00 - 53705L 791/741 80
1.60 0.32 0.62
1.45 -
- 53705R 483/419 22
- (OF)
- 80000L 699/626 42
1.48 0.40 0.73
1.83 -
- PARTICULARS OF PABNAWA DISTRIBUTARY TOTAL
DISCHARGE 59cfs(Rabi) - TOTAL LENGTH OF DISTRIBUTARY 96,000 ft 71 cfs
(Kharif) - GROSS COMMAND AREA 30016acre
- CULTIVABLE COMMAND AREA 27225 acre
- TOTAL OUTLETS 43
-
10Head end watercourse, Pabnawa Minor
11Percentage of zero tillage Saturation
- At head is 25-30 (Roagarh)
- At middle is 25-30 (Pabnawa)
- At tail is 60-70 (Pharal)
12Infrastructure
13Infrastructure Facilities
- Two Research Associates
- Head office Kurukshetra
- Five Data Collectors
14Equipments
- Computer ? Piezometers
- Observation wells ? Moisture meter
- Water flumes ? Salinity probe
- Infiltrometers ? Water sampler
- Hydraulic conductivity ?Current meter
- meters
15Piezometer and observation well, Tik farm
16Data Collection Program
17Water observations
- Discharge of canal, outlets and watercourses at
the time of irrigation - Seepage losses in distributary and watercourses
once in a season - Observation wells, piezometers (weekly) and
isopressure lines - Ground water quality
- Moisture measurements before and after each
irrigation and at an interval of 10 days -
18IRRIGATION
- CANAL WATER
- FLOW MEASUREMENT IN CANAL AND WATERCOURSE
- SEEPAGE LOSS
- DEVELOPMENT OF CALIBRATION CURVE FOR EACH OUTLET
- TUBEWELL DISCHARGE
- CO-ORDINATE METHOD
- HOURS OF OPERATION
19Typical 3-inch (7.5 cm) diameter tubewell
20Water Balance Component
- Irrigation (canal water/Tubewell water)
- Rainfall
- Evapotranspiration
- Deep percolation
- Surface drainage
21Estimated actual evapotranspiration using SEBAL
analysis on LANDSAT 7 image, Rabi season 2000
Head
Kurukshetra
Middle
Karnal
Kaital
22Soil observations
- Soil texture (International pipette method),
saturation percentage (paste method), soil
moisture characteristics (pressure plate
apparatus), - soil strength (penetrometer), bulk density
(core method), infiltration rate (close top
infiltrometer) and hydraulic conductivity
(constant head method) will be determined once in
a season for five main sites only - Soil organic carbon (Walkley and Black method),
soil salinity (EC and pH) of a profile will be
determined once in a season for all the sites
23Crop observations
- Phenology of crop
- Date of sowing
- Date of emergence
- Date of panicle initiation
- Date of anthesis
- Date of milking
- Date of maturity
- Leaf area index at different crop growth stages
- Crop height at different crop growth stages
- Dry matter yield
24Conventional and RCT fields, Tik farm
Conventional
5-year zero till
25Historical data
- Meteorological data sunshine hours, maximum
temperature, minimum temperature, rainfall,
relative humidity, wind speed, wind velocity and
pan evaporation - Ground water data ground water fluctuation data
of last ten years, lethology of wells and check
maps from irrigation department - Socio economic data
26Results
27CANAL WATER SUPPLY AT DIFFERENT LOCATIONS OF
PABNAWA MINOR
28CANAL WATER AVAILABILITY AT DIFFERENT LOCATIONS
29FLOW MEASUEREMENT IN THE WATERCOURSE AT DIFFERENT
POINTS TO DETRMINE SEEPAGE LOSS
30TUBEWELL DISCHARGE AT DIFFERENT LOCATIONS OF
PABANWA MINOR
31COMPARISON OF CANAL OPERATION HOURS FOR 1ST AND
2ND IRRIGATION (ZERO TILLAGE FIELDS)
32COMPARISON OF TUBEWELL OPERATION HOURS FOR 1ST
AND 2ND IRRIGATION(ZERO TILLAGE)
33COMPARISON OF TUBEWELL OPERATION HOURS FOR 1ST
AND 2ND IRRIGATION (CONVENTIONAL FIELD)
34COMPARISON OF 1ST IRRIGATION APPLICATION DEPTH IN
ZERO TILLAGE AND CONVENTIONAL FIELD
35WATER TABLE FLUCTUATION IN PABNAWA TAIL
36WELL LETHOLOGY
- SOIL PROFILE SOIL TYPE
- 0---5 CLAY LOAM
- 518 SILTY CLAY LOAM
- 1829 SANDY LOAM
- 2938 LOAMY SAND
- 3852 SANDY LOAM
- 5295 COARSE SAND
- 95105 CLAY
37BULK DENSITY (PABNAWA MIDDLE)CONTROLLED SITE
- PROFILE DEPTH (cm) BULK DENSITY(gm/cm3)
- 05 1.46
- 510 1.44
- 1015 1.61
- 1520 1.71
- 2025 1.56
- 2530 1.62
- 3035 1.56
- 3540 1.64
- 4045 1.48
- 45---50 1.57
- 5055 1.45
- 5560 1.55
- 6065 1.47
- 6570 1.63
- 7075 1.54
- 9095 1.58
- 95100 1.69
38REPRESENTATION OF AVERAGE INFILTRATION RATE
VERSUS TIME (Pabnawa Middle)