OMB No. 0535-0088: Approval Expires 4/30/2015 |
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FORM C-2 WINTER WHEAT YIELD SURVEY National Laboratory Determinations 2015 |
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NATIONAL AGRICULTURAL STATISTICS SERVICE |
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CROP CODE |
YEAR, CROP, FORM, MMDD (1 – 7) |
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Winter . . . . |
1 |
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5 __ 5 ___ ___ ___ ___ |
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Date sample received in lab: |
1. From Identification Tag |
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UNIT 1 |
UNIT 2 |
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a. All Heads (Emerged, Late Boot, and Detached) |
Number |
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Total Number |
501 |
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b. Stage of maturity . . . . . . . . . . . . . . . . . . . . . . . . . . . . |
Unit |
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Unit 1 Code |
502 |
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2. Laboratory Determinations, All Clipped Heads from Units 1 and 2 |
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a. Unit 1: |
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(i) Heads in sample 1/ (Initial if recounted __________) . . . . . . . . . . . . . . . . . . . . . |
Number |
504 |
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(ii) Total weight of all heads . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . |
Grams |
503 |
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b. Unit 2: |
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(i) Heads in sample 1/ (Initial if recounted __________) . . . . . . . . . . . . . . . . . . . . . |
Number |
506 |
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(ii) Total weight of all heads . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . |
Grams |
505 |
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c. Total weight of all heads 2a(ii) + 2b(ii) . . . . . . . . . . . . . . . . . . . |
Grams |
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3. Threshed Grain, All Heads from Units 1 and 2 |
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a. Weight immediately after threshing . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . |
Grams |
507 |
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(i) Is item 3a LESS than 2c? YES – Go to item 3b |
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NO –STOP – NOTIFY SUPERVISOR |
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b. Weight immediately before moisture test . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . |
Grams |
508 |
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c. Moisture content 2/ . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . |
Percent |
509 |
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4. Approximate density of the sample . . . . . . . . . . . . . . . . . . . . . . |
Pounds/Bushel (One Decimal) |
510 |
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Lab Technician |
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Date Analyzed |
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MM DD |
1/If the Lab count is different from the field count, follow these steps—
2/If the sample weight is too small or too dry for a moisture test, follow the procedures on the back of this form to complete the Moisture Test. |
FORM C-2: WHEAT |
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If the sample weight is too small for moisture test, sufficient grains of known moisture content (use same class and stage of maturity) will be added to the sample so that a moisture test can be made. The moisture content of the sample can then be derived using the following formula: |
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E = |
( A + B ) D - ( B x C) |
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A |
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Where |
A = Weight of small or dry wheat sample . . . . . . . . . . . . . . . . . . . . . . . |
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Grams |
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B = Weight of additional grain required for moisture test . . . . . . . . . . |
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Grams |
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C = Moisture percent of B . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . |
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Percent |
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D = Moisture percent of A + B combined . . . . . . . . . . . . . . . . . . . . . . . . |
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Percent |
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E = Result : Moisture percent of small or dry wheat sample (enter in item 3c) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . |
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Percent |
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File Type | application/vnd.openxmlformats-officedocument.wordprocessingml.document |
Author | murpdi |
File Modified | 0000-00-00 |
File Created | 2021-01-25 |