QID 120031 C-2 Form C-2 Regional Laboratory Determinations for Wheat Yi

Project Code 101 QID 120031C-2		OMB No. 0535-0088: Approval Expires 2/29/2012
	FORM C-2 REGIONAL LABORATORY DETERMINATIONS Wheat Yield Survey 2011			NATIONAL AGRICULTURAL STATISTICS SERVICE

CROP CODE

YEAR, CROP, FORM, MMDD (1 – 7)

Winter . . . . .

1

1 __ 5 ___ ___ ___ ___

Date sample received in lab:

1. From Identification Tag			UNIT 1				UNIT 2
a. All Heads (Emerged, Late Boot, and Detached)		Number						Total Number	501
b. Stage of maturity . . . . . . . . . . . . . . . . . . . . . . . . . . . . .		Unit						Unit 1 Code	502
2. Laboratory Determinations, All Clipped Heads from Units 1 and 2
a. Unit 1:
(i) Heads in sample 1/ (Initial if recounted __________) . . . . . . . . . . . . . . . . . . . . . .								Number	504
(ii) Total weight of all heads . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .								Grams	503	. ____
b. Unit 2:
(i) Heads in sample 1/ (Initial if recounted __________) . . . . . . . . . . . . . . . . . . . . . .								Number	506
(ii) Total weight of all heads . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .								Grams	505	. ____
c. Total weight of all heads 2a(ii) + 2b(ii) . . . . . . . . . . . . . . . . . . . .				Grams				. ____
3. Threshed Grain, All Heads from Units 1 and 2
a. Weight immediately after threshing . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .								Grams	507	. ____
(i) Is item 3a LESS than 2c? YES – Go to item 3b
NO –STOP – NOTIFY SUPERVISOR
b. Weight immediately before moisture test . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .								Grams	508	. ____
c. Moisture content 2/ . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .								Percent	509	. ____
Lab Technician						Date Analyzed
									MM DD
1/If the Lab count is different from the field count, follow these steps— Check if the correct unit was counted. RE-ADD counts from the ID tag. If counts are different by 2% or more (lab count / field count) then recount heads and initial unit recounted. Lab supervisor, notify State when difference 5% or more. 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

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:
	E =	( A + B ) D - ( B x C)
		A

Where	A = Weight of small or dry wheat sample . . . . . . . . . . . . . . . . . . . . . . .		. ___	Grams
	B = Weight of additional grain required for moisture test . . . . . . . . . .		. ___	Grams
	C = Moisture percent of B . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .		. ___	Percent
	D = Moisture percent of A + B combined . . . . . . . . . . . . . . . . . . . . . . . .		. ___	Percent
	E = Result : Moisture percent of small or dry wheat sample (enter in item 3c) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .		. ___	Percent