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Appendix 1 Leaf Analysis 1999 Almonds: N 2.5-2.7%, K 1.2-2.2%, Ca 1.7-3.0%, Zn 20-30 ppm, B 105 ppm (hulls) Mn 300-400ppm, Cu 6-7ppm Walnuts: N 2.3%, K 3%, Ca
1.75%, B 51ppm, Zn 14ppm, Mn 190 ppm, Cu 8 ppm Fertilizer Program Almonds: UAN-32 nitrogen @ 160-250 lbs N per acre, Potassium sulfate at 400 lbs per acre Zinc sulfate@ 30lbs and Solubor @ 2lbs/ac on
some blocks Walnuts: UAN-32 @ 240 lbs N /ac Potassium Sulfate @ 500 lbs/ac Prunes: UAN-32 @ 100 lbs./ac Potassium Sulfate @ 600 lbs/ac UAN injected 4-5 split applications per season. K soil applied beneath emitters fall 1998 Zn & B foliar application fall 1998 Disease
program Almonds: Pink bud - Rovrol® Full bloom - Break® Petal fall + 2 weeks - Captan® PF + 4 weeks - Captan® Insect Control Program Almonds: Peach Twig Borer - Dipel® twice at 30% PTB
emergence(late bloom) & 80% emergence (late petal fall) Navel orangeworm - Stealth® applied twice at hull split to Nonpareils Walnuts: Codling Moth - Confirm® @ 290 DD Husk Fly - Malathion + Nulure bait to outside rows only Weeds Roundup®+Goal® postemergence strip spray applications - 5
sprays almonds, 4 sprays walnuts Irrigation Almonds: 36 inches Etc calculated, 32-35 inches applied. Walnuts: 42 inches ETc, 41 inches applied. Frost Temperatures below 30 degrees were sustained during early morning hours of
April 9. The crop was affected in some trial areas, especially Marianna Hedgerow
on Green Bay Rd. and third leaf Rootstock Trial on Marine Ave. Nearly a total
loss of the prune crop occurred from frost. 1999 Crop Yields Total Almonds down 5%
from1998: Nonpareil up 9%, Carmel up 50%, Monterey and Neplus no
change. Butte, Ruby, Mission down 10%, and Padre down 40 %. Walnuts: Chandlers up 60%, Howards up 30% (Up 50% from 1998) |
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Send mail to jlschmierer@ucdavis.edu with questions or comments about this web site.
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