ontario sugar beet growers - Atrium - University of Guelph

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1Ocm Depth Hand lrrigated (Reif) - ..... ... -. -- ................................................. .... - - 30cm Depth Hand lrrigated (Reif) -- . 60cm Depth Hand lrrigated (Reif)
COMMENTS Location B CONTROL A very different series of events occurred at this site. After a series of significant rainfall events between July 15 and 26, the ground was never able to rewet itself especially at the most effective growing depth of 30cm. The heavier soil type sealed over and later in the season began to crack, Fig 6. This did not provide a very effective soil-root growth opportunity capable of producing high sugar beet yields. All three soil depths showed a depletion of soil moisture as the roots tried to grow in this relatively inhospitable, tight, condition. Yields were considerably lower than at Location A. PIVOT IRRIGATION The three imgation events on August 15,22 and 23 apparently provided enough soil moisture to softened the soil sufficiently with adequate water penetration into the root zone at all depths that the sugar beets began to grow resulting in higher beet yields than the non-imgated control (Fig. 11). Each time water was added, whether through imgation or rainfall the roots quickly took up the moisture noted by the rounded peaks with very little lost water through gravitational drainage. In contrast to Location A, sugar beet roots were active at the 60cm depth as they may have been forced to grow in this less compacted soil region. Unfortunately for there is little nutrients at that soil level. It appears that additional water could have improved the yield at this location. HAND IRRIGATED PLOT Similarly to that of the Pivot irrigated plot, the imgation events on August 9,24 and 3 1 provided sufficient moisture to soften and oxygenate the soil to promote a reasonable rate of sugar beet growth. The yields and sugar content were similar for both the imgated plots and considerably higher than in the non-irrigated control plots. Fig. 10. Total rainfall + irrigation at locations A and B in the three irrigation treatments. Irrigation Comparison Hard higation (OW A Site Location B
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 and 42: Fig. 1. Irrigation test sites, Mich
Page 43: Fig. 5. Commercial Pivot Irrigation
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 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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