Survey ID: 3224 Form B Corn Yield Counts

FORM B CORN YIELD COUNTS - 2022

OMB No.: 0535-0088
Approval Expires: xx/xx/20xx
Project Code: 104
Survey ID: 3224

United States
Department of
Agriculture
NATIONAL
AGRICULTURAL
STATISTICS
SERVICE

Date:
UNIT LOCATION

UNIT 1

UNIT 2

1.

Number of rows along edge of field..............................................................................................

+ 30

2.

Number of paces into field............................................................................................................

+ 30

3.

Has operator applied pesticides with organophosphorus content to the sample field?
Yes

No

If YES, enter latest application date

4.

and name of pesticide
UNIT 1

1 First visit to lay out unit
2 Unit relocated this month
UNIT LOCATION CODE......................
3 Sample unit laid out previously

UNIT 2

302

307

Enter Code

If code = 3, skip to Item 6
5.

ROW SPACE MEASUREMENTS

UNIT 1

a.

Measure distance from stalks in Row 1 to stalks in Row 2............................. Feet & Tenths 303

b.

Measure distance from stalks in Row 1 to stalks in Row 5............................. Feet & Tenths 305

Designated Measurement Areas:

UNIT 2

.____

304

.____

.____

306

.____

MATURITY CODES FOR ITEM 6
For Month
Sept. 1
Oct. 1
Nov. 1

Use Area Beyond
Unit 1, Row 1
Unit 1, Row 2
Unit 2, Row 1

Maturity Code
2 = Pre-Blister 5 = Dough
3 = Blister
6 = Dent
4 = Milk
7 = Mature

Husk the first 5 ears or silked ear shoots beyond the unit in the designated measurement area and examine for maturity. Enter the
maturity code in the box for the corresponding ear, sum the five maturity codes and enter the total in cell 301.
If ears or silked ear shoots are not yet present, Check
and complete Item 11 only.
EAR NUMBER
1

6.

2

3

4

c.

Will harvest occur within 3 days?

TOTAL OF 5 EARS

301

MATURITY CODE of first 5 ears or silked ear shoots
a.

5

b.

Are three or more ears in maturity code 7?

No - Go to Item 6b

No - Go to Item 6c

Yes - Complete Items 11, 14, 15, 16 & 17

Yes - Complete Items 11, 14, 15, 16 & 17

Does Item 301 equal 23 or more?

d.

Does Item 301 equal 13 to 22?

No - Go to Item 6d

No - Complete Items 11, 12, 13 & 14

Yes - Complete Items 7, 8, 9, 10, 11 & 14

Yes - Complete Items 7, 8, 9, 10, 11, 12, 13 & 14

EAR NUMBER
1

2

7. Maturity code of each of the first 5 ears Code 3 or
320
higher (copy maturity from Item 6. Replace Code 2 ears
with next code 3 or higher.)...................................................Code
326
8. Average length of kernel rows
(Item 7 ears)...........................................................Inches & Tenths

9. Diameter of the ear one inch from the butt
of the cob (Item 7 ears).................................... Millimeters & Tenths

3

5

321

322

323

324

327

328

329

330

.___

.___

336

4

.___

337

.___

338

.___
339

.___

.___
340

.___

.___

.___

10. Are 3 or more ears (Item 7) in maturity code 6 or 7?
No - Continue to Item 11
Yes -

1. Harvest the first 5 ears beyond the unit which are coded 6 or 7.
2. Place the third and fourth ears in a cloth bag and attach a completed ID tag to the outside.
3. Place the other three (first, second and fifth) ears in a Tyvek envelope.
4. Place the cloth bag containing the third and fourth ears in the envelope with the other three ears.
5. Ship the sealed Tyvek envelope with all 5 ears to the National Lab.
6. Check Here
when complete.
UNIT 1

COUNTS WITHIN 15 FOOT UNITS

ROW 1

UNIT 2
ROW 2

ROW 1

ROW 2

331

332

333

334

341
12. Number of stalks with ears or silked ear shoots
(Item 12 cannot exceed Item 11 for any row.)........................................................

342

343

344

351
13. Number of ears and silked ear shoots
(Item 13 MUST equal or exceed Item 12 for any row.)..........................................

352

353

354

361
14. Number of ears with evidence of kernel formation
(Item 14 cannot exceed Item 13 for any row.).......................................................

362

363

364

11. Number of stalks ...................................................................................................

HARVESTING SAMPLE UNITS
15. HUSK and TAG the 3rd and the 4th ears in Row 1 of both units. Husk remaining
UNIT 1, ROW 1
ears and weigh ALL ears with grain in Row 1 of each unit regardless of maturity
312
stage.
Number of ears husked with grain (include 3rd and 4th ears)....................................
Number
Verify: Cell 312 equals Item 14 cell 361 and
cell 313 equals Item 14 cell 363
314
16. Weight of ears with grain and any accidentally shelled kernels from
Pound & Hundredths
Row 1 of each unit (include 3rd and 4th ears, exclude weight of
containers)................................................................................................................

UNIT 2, ROW 1
313

315

. __ __

. __ __

17. Place 3rd and 4th ears of Row 1 in separate plastic bags for each unit. After completing Items 15 and 16, send 3rd and 4th ears to the
National Lab.
18. Did you leave the ears of corn where the operator requested?

Yes

No

ENUMERATOR COMMENTS:
Enumerator 390
Number

ENUMERATOR:
19. Did a supervisor assist you in working a sample?

1

Yes

3

No

Supervisor 391
Number
393

UPS Tracking Number:

Evaluation

(For samples sent to National Laboratory)
STATUS CODE

380