Although it started in mid May, farmers completed wheat planting in the region in the second week of June, under very good conditions. The soil moisture profile was good; planting of short cycle varieties continued until mid-July. Farmers’ main goal was coverage.
Tillering was under adequate humidity, with unusual rains in August that benefited the development of the crop. However, high temperatures negatively impacted on crop development by forcing rapid growth. Early in the reproductive stage, humidity affected long cycle varieties and led to wheat rust in some fields. By late September, drought and daily temperatures above 30°C affected filling and maturity. Short cycle varieties were affected the most since flowering started under no rain.
There were severe cases of aphids, trips and rust.
Early harvest started in late September, in fields planted with intermediate to long cycle varieties. Harvesting was delayed in other areas by rains and drizzles and could only began by mid October. This weather conditions continued all along harvest, which extended till the second week of November.
Early planting gave the best yields thanks to water availability until grain filling. In some fields, late planting was affected by insufficient soil moisture levels recorded since early flowering or even before this stage. Yields ranged from 700 to 2,200 kg/h, with an average yield in the province of Chaco of 1,500 kg/h.
Farmers planted winter wheat mainly as coverage crop, to control weeds. Good yields compensated the smaller wheat acreage when compared to the previous year campaign.
MAP OF THE SUBREGION |
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GRADE DISTRIBUTION |
FLOUR ANALYSIS | PARAMETERS | MINIMUM | MAXIMUM | AVERAGE | STANDARD DEVIATION | VARIATION COEFFICIENT | |||
MILLING | Wet Gluten (%) | 24,20 | 26,90 | 26 | 1,21 | 4,64 | |||
Dry Gluten (%) | 9,00 | 10,00 | 9,7 | 0,45 | 4,62 | ||||
Falling Number (seg.) | 234,00 | 432,00 | 364 | 88,60 | 24,34 | ||||
Flour Yield (%) | 63,0 | 63,0 | 63,0 | 0,00 | 0,00 | ||||
Ash (dry basis) (%) | 0,647 | 0,693 | 0,681 | 0,021 | 3,091 | ||||
FARINOGRAM | Water Absorption (14 % H°) (%) | 54,90 | 57,10 | 56,1 | 1,04 | 1,85 | |||
Development Time(min.) | 6,80 | 20,00 | 13,7 | 7,01 | 51,09 | ||||
Stability (min.) | 24,90 | 48,90 | 30,4 | 11,38 | 37,46 | ||||
Degree of Softening (12 min.) | 3,00 | 31,00 | 20 | 12,71 | 62,94 | ||||
ALVEOGRAM | |||||||||
P (mm) | 93,00 | 97,00 | 95 | 2,40 | 2,52 | ||||
L (mm) | 66,00 | 87,00 | 77 | 10,55 | 13,73 | ||||
W Joules x 10-4 | 265,00 | 315,00 | 291 | 24,92 | 8,56 | ||||
P / L | 1,07 | 1,47 | 1,26 | 0,20 | 15,80 | ||||
These results were elaborated with 3 composite samples prepared proportionally from 43 primary samples. |
SUBREGION DATA
In this sub region the wheat production was 369.720 tons., the 3,3 % of the national total. Were sampled 10.000 tons., the 2,7 % of the sub region production.
APPENDIX OF LOCALITY COMPOSITE SAMPLES | |||||||||||||
SAMPLE IDENTIFICATION | WHEAT ANALYSIS | ||||||||||||
SAMPLE NUMBER | LOCALITY, DISTRICT OR DEPARTMENT | TONNAJE | GRADE | TEST WEIGT (Kg/hl) | TOTAL DAMAGED KERNELS(%) | FOREIGN MATERIAL (%) |
SHRUNKEN AND BROKEN KERNELS (%) | YELLOW BERRY KERNELS (%) |
PROTEIN (MOISTURE 13,5 % H°) |
PROTEIN (s/S.S.S.) | WEIGT OF 1000 KERNELS (gr.) | ASH(dry basis) % | |
1 | Chaco | 4000 | 2 | 79,70 | 0,70 | 0,11 | 0,78 | 3,66 | 12,1 | 14,0 | 30,80 | 2,018 | |
2 | Chaco | 2000 | 2 | 81,05 | 0,10 | 0,28 | 0,92 | 5,90 | 11,4 | 13,2 | 29,20 | 2,047 | |
3 | Chaco | 4000 | 2 | 81,25 | 0,06 | 0,40 | 0,60 | 1,11 | 12,3 | 14,2 | 30,30 | 2,064 | |
APPENDIX OF LOCALITY COMPOSITE SAMPLES | |||||||||||||||
SAMPLE IDENTIFICATION | FLOUR ANALYSIS | ||||||||||||||
SAMPLE NUMBER | LOCALITY, DISTRICT OR DEPARTMENT | WET GLUTEN(%) | DRY GLUTEN(%) | FALLING NUMBER (seg.) | FLOUR YIELD(%) | FARINOGRAM | ALVEOGRAM | ASH(dry basis)(%) | |||||||
% WA (14 % H°) | D. T. (min.) | STABILITY (min.) | DEGREE SOFTENING(12 min.) | P | L | W | P/L | ||||||||
1 | Chaco | 26,9 | 10,0 | 361 | 63,0 | 55,8 | 6,8 | 26,6 | 18 | 93 | 87 | 315 | 1,07 | 0,693 | |
2 | Chaco | 24,2 | 9,0 | 234 | 63,0 | 54,9 | 20,0 | 48,9 | 3 | 97 | 66 | 265 | 1,47 | 0,647 | |
3 | Chaco | 26,1 | 9,7 | 432 | 63,0 | 57,1 | 17,5 | 24,9 | 31 | 97 | 72 | 280 | 1,35 | 0,685 |