ontario sugar beet growers - Atrium - University of Guelph

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A Capacitance Probe (C-Probe) A C-Probe is a soil moisture-monitoring device that records volumetric soil moisture. The probes (Model C-probe, Agrilink Holdings Pty Ltd., Australia) are based on frequency domain reflectometry which takes advantage of the fact that soil electrical capacitance is highly dependent on soil water content. The C-probes communicate with the logger via hi-resolution analog signals, allowing a maximum of 6 sensors, (we used three at 10,30 and 60 cm depths), to be attached to a probe in a single soil profile. The sensor/probe combination (shown in Fig. 2) is inserted into a PVC tube inserted into the soil and the probe performs a measurement whenever requested by the datalogger system (we recorded every 15 minutes). Fig. 2. Capacitance Probe (C-Probe with soil moisture sensors at various depths inserted into a PVC access tube) Rainfall and Irrigation Daily rainfall and irrigation quantities were collected or estimated either by the grower or through the use of dedicated tipping bucket rain gauges located either in the irrigated field, which would collect both the rainfall events and the irrigation events, or in a non-irrigated area which would only collect rainfall events. Table 1. Water was applied to the "hand irrigated" plot by sprinkling an exact quantity of water on the small plot. Fig 3. Applying water to the Hand Irrigated plot
Fig. 5. Commercial Pivot Irrigation Equipment Table 1. Rainfall and Irrigation, Locations A and B. Measured by grower vs Instruments. Pivot Rain Gauge Under Pivot Grower Rain Gauge Estimated by Precipitation + Researcher I
Page 1 and 2: Submitted to the ONTARIO SUGAR BEET
Page 3 and 4: SPECIAL ACKNOWLDEGMENTS I wish to p
Page 5 and 6: REPORTS IRRIGATION STRATEGIES FOR S
Page 7 and 8: Research Results and Milestone Stat
Page 9 and 10: applications, severely costing the
Page 11 and 12: Table 1. Foliar disease control rat
Page 13 and 14: CROP: Sugar beet (Beta vulgaris L.)
Page 15 and 16: Table la. Cercospora Foliar disease
Page 17: BeetCast Evaluation for the Control
Page 23 and 24: CROP: PEST: Sugar beet (Beta vulgar
Page 25 and 26: CONTROL OF RHlZOCTONlA CROWN ROT IN
Page 27 and 28: Table 1. Effect of fungicides appli
Page 29 and 30: Table 1. Foliar insect damage ratin
Page 33 and 34: effective in combating the crown ro
Page 35 and 36: Table 1. Field assessments of sugar
Page 37 and 38: Table 1. Common leaf rust ratings i
Page 39 and 40: IRRIGATION STRATEGIES FOR SUGAR BEE
Page 41: Fig. 1. Irrigation test sites, Mich
Page 50 and 51: Irr 1-7: dates where grower applied
Page 52 and 53: Fig. 8b. Location A Pivot Irrigatio
Page 54 and 55: COMMENTS: Location A CONTROL lOcm T
Page 56 and 57: Fig. 9a Location B Control 10cm Dep
Page 58 and 59: 1Ocm Depth Hand lrrigated (Reif) -
Page 60 and 61: SUGAR BEET MELD AND SUGAR CONTENT O
Page 62 and 63: COMMENTS The reference ETo at each
Page 64 and 65: graphs indicated that too much wate
Page 66 and 67: 1. PRODUCTION BENEFITS OF IRRIGATIO
Page 68 and 69: of 10 (Fig. 6). Plant growth charac
Page 70 and 71: Table 1: Seed corn irrigation analy
Page 72 and 73: Fig. 8. Irrigation plot layout show
Page 74 and 75: Cob Length Irrigation significantly
Page 76 and 77: Seed Corn Yields Irrigation signifi
Page 78 and 79: BENEFITS OF IRRIGATING SEED CORN IN
Page 80 and 81: C-probe Scaled Frequency Unit V I +
Page 82 and 83: CONCLUSIONS: The initial intent was
Page 84 and 85: Fig. >rip tape along side of seed c
Page 86 and 87: Table 8b: Drip Irrigation - Seed co
Page 88 and 89: Fig. 18. Drip Irrigation - Non-irri
Page 90 and 91: Fig. 20. Rainfall accumulations in
Page 92 and 93:
Fig. 22. Soil moisture profile in f
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ontario sugar beet growers - Atrium - University of Guelph

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