| Sweet potatoes
|
Units
|
Average
|
Range
|
Valuation
|
| CLIMATE
|
_____
|
_____
|
_____
|
_____
|
| TEMPERATURE
|
_____
|
_____
|
_____
|
_____
|
| SOIL TEMPERATURE
|
Cº
|
_____
|
15-18
|
_____
|
| AIR TEMPERATURE - Zero vegetation
|
Cº
|
12,0
|
_____
|
_____
|
| AIR TEMPERATURE - MINIMUM CULTURE
|
Cº
|
15,0
|
_____
|
_____
|
| AIR TEMPERATURE - optimize CULTIVATION
|
Cº
|
_____
|
22-30
|
_____
|
| AIR TEMPERATURE - MAXIM
|
Cº
|
30,0
|
_____
|
_____
|
| HEIGHT M. (COOL IN THE TROPICS) MAXIM
|
m
|
1.200,0
|
_____
|
_____
|
| LIGHT
|
_____
|
_____
|
_____
|
_____
|
| DAY SHORT
|
_____
|
_____
|
_____
|
PREFER
|
| WATER
|
_____
|
_____
|
_____
|
_____
|
| MM. RAIN-annual minimum
|
mm
|
850,0
|
750-1000
|
_____
|
| MM-LLUVIA - week
|
mm
|
2,5
|
_____
|
_____
|
| HUMIDITY AIR % HR
|
%
|
_____
|
80-85
|
_____
|
| RESISTANCE TO THE DROUGHT
|
weeks
|
3,0
|
_____
|
_____
|
| PERIODS DRY-CONVENIENCE
|
weeks
|
_____
|
2-3 semanas antes recoleccion
|
_____
|
| BORON-WATER IRRIGATION
|
mg/lt
|
_____
|
0,75-1,0
|
SENSITIVE
|
| SOIL
|
_____
|
_____
|
_____
|
_____
|
| PHYSICAL PROPERTIES SOIL
|
_____
|
_____
|
_____
|
_____
|
| HEAVY - CLAY
|
_____
|
_____
|
_____
|
SENSITIVE
|
| FRANCS - light
|
_____
|
_____
|
_____
|
PREFER
|
| depth average
|
_____
|
_____
|
_____
|
PREFER
|
| SOIL WATER
|
_____
|
_____
|
_____
|
_____
|
| DRAINED
|
_____
|
_____
|
_____
|
DEMANDING
|
| flooding, TOLERANCE
|
_____
|
_____
|
_____
|
NOT TOLERATED
|
| DROUGHT-TOLERANCE
|
_____
|
_____
|
_____
|
MODERATELY
|
| PHYSICAL AND CHEMICAL PROPERTIES
|
_____
|
_____
|
_____
|
_____
|
| PLANT tolerance to pH acid
|
_____
|
_____
|
_____
|
MODERATELY
|
| pH optimal range
|
pH
|
_____
|
5,5-6,5
|
_____
|
| dS/m MAXIM
|
dS/m
|
_____
|
1,5 a 2,5
|
_____
|
| SALINITY IN THE SOIL-TOLERANCE TO PLANT
|
_____
|
_____
|
_____
|
MODERATELY
|
| FERTILIZATION
|
_____
|
_____
|
_____
|
_____
|
| N-EXTRACTIONS-UF / Ha
|
fu/ha
|
70,0
|
_____
|
_____
|
| P-EXTRACTIONS-UF / Ha
|
fu/ha
|
15,0
|
_____
|
_____
|
| K-EXTRACTIONS-UF / Ha
|
fu/ha
|
100,0
|
_____
|
_____
|
| N-EXTRACTIONS-UF / Tons
|
fu/tm
|
4,5
|
4-5
|
_____
|
| P-EXTRACTIONS-UF / Tons
|
fu/tm
|
1,0
|
0,8-1,2
|
_____
|
| K-EXTRACTIONS-UF / Tons
|
fu/tm
|
6,7
|
6,5-7
|
_____
|
| fertilizer N-high (Kg-UF/Ha)
|
fu/ha
|
35,0
|
_____
|
_____
|
| fertilizer N-medium (Kg-UF/Ha)
|
fu/ha
|
47,0
|
_____
|
_____
|
| fertilizer N-low (Kg-UF/Ha)
|
fu/ha
|
60,0
|
_____
|
_____
|
| fertilizer P-high (Kg-UF/Ha)
|
fu/ha
|
50,0
|
_____
|
_____
|
| fertilizer P-medium (Kg-UF/Ha)
|
fu/ha
|
75,0
|
_____
|
_____
|
| fertilizer P-low (Kg-UF/Ha)
|
fu/ha
|
100,0
|
_____
|
_____
|
| fertilizer K-high (Kg-UF/Ha)
|
fu/ha
|
90,0
|
_____
|
_____
|
| fertilizer K-medium (Kg-UF/Ha)
|
fu/ha
|
130,0
|
_____
|
_____
|
| fertilizer K-low (Kg-UF/Ha)
|
fu/ha
|
170,0
|
_____
|
_____
|
| fertilizer N-high (Kg-UF/Tons)
|
fu/tm
|
2,3
|
_____
|
_____
|
| fertilizer N-medium (Kg-UF/Tons)
|
fu/tm
|
3,1
|
_____
|
_____
|
| fertilizer N-low (Kg-UF/Tons)
|
fu/tm
|
4,0
|
_____
|
_____
|
| fertilizer P-high (Kg-UF/Tons)
|
fu/tm
|
3,3
|
_____
|
_____
|
| fertilizer P-medium (Kg-UF/Tons)
|
fu/tm
|
5,0
|
_____
|
_____
|
| fertilizer P-low (Kg-UF/Tons)
|
fu/tm
|
6,7
|
_____
|
_____
|
| fertilizer K-high (Kg-UF/Tons)
|
fu/tm
|
6,0
|
_____
|
_____
|
| fertilizer K-medium (Kg-UF/Tons)
|
fu/tm
|
8,7
|
_____
|
_____
|
| fertilizer K-low (Kg-UF/Tons)
|
fu/tm
|
11,3
|
_____
|
_____
|
| NITROGEN-SOWING
|
%
|
_____
|
2/3
|
_____
|
| NITROGEN-DEVELOPMENT PLANT
|
%
|
_____
|
1/3 - 40 dias
|
_____
|
| PHOSPHORUS-SOWING
|
%
|
100,0
|
_____
|
_____
|
| POTASSIUM-SOWING
|
_____
|
_____
|
1/2
|
_____
|
| TECHNIQUES OF CULTIVATION
|
_____
|
_____
|
_____
|
_____
|
| SEEDING-PLANTING
|
_____
|
_____
|
_____
|
_____
|
| Tuber-diameter, CM.
|
cm
|
4,0
|
_____
|
_____
|
| DENSITY, PLANT/REGROWTH/TUBERS-m2
|
plants/m2
|
1.500,0
|
_____
|
_____
|
| kg/tubers-m2
|
kg/m2
|
10,0
|
_____
|
_____
|
| TRANSPLANT, LENGTH NO. LEAVES
|
nº
|
_____
|
6-10
|
_____
|
| TRANSPLANTING, plant age months
|
month
|
_____
|
2-3
|
_____
|
| HEIGHT STAKE OR CUTTING CM
|
cm
|
30,0
|
_____
|
_____
|
| WIDTH BETWEEN PLANTS M.
|
m
|
0,3
|
_____
|
_____
|
| RIDGES, DISTANCE LOINS
|
m
|
1,0
|
0,75-1,3
|
_____
|
| RIDGES, height
|
cm
|
22,0
|
20-25
|
_____
|
| N °-PLANTS-TUBERS/HA.
|
plants/ha
|
30.000,0
|
_____
|
_____
|
| RIDGES WIDTH
|
cm
|
_____
|
40-45
|
_____
|
| TUBERS depth cm
|
cm
|
5,0
|
_____
|
_____
|
| WORK
|
_____
|
_____
|
_____
|
_____
|
| TILLAGE DEPTH, CM.
|
cm
|
25,0
|
_____
|
_____
|
| 1st WEEDING, time from planting days
|
days
|
45,0
|
40-50
|
_____
|
| HARVESTING WORK
|
_____
|
_____
|
_____
|
_____
|
| START COLLECTING AGE
|
month
|
_____
|
4-6
|
_____
|
| AVERAGE production tonnes / has.
|
ton/ha
|
15,0
|
10-20
|
_____
|
| Cycle harvesting
|
month
|
4,5
|
3,5-6
|
_____
|
| POSTHARVEST-MARKETING
|
_____
|
_____
|
_____
|
_____
|
| TEMPERATURE OF STORAGE
|
Cº
|
_____
|
13-16
|
_____
|
| STORAGE HUMIDITY %
|
%
|
_____
|
85-90
|
_____
|
| MAXIMUM STORAGE TIME
|
month
|
1,0
|
_____
|
_____
|
| COMPOSITION FOOD
|
_____
|
_____
|
_____
|
_____
|
| Water-Fresh product
|
gr
|
77,0
|
_____
|
_____
|
| Dry matter-Fresh produce
|
gr
|
23,0
|
_____
|
_____
|
| ENERGY-Fresh product
|
kcal
|
86,0
|
_____
|
_____
|
| POWER-dry matter
|
kcal
|
373,9
|
_____
|
_____
|
| Carbohydrates-Fresh produce
|
gr
|
20,1
|
_____
|
_____
|
| Carbohydrates-Dry matter
|
%
|
87,4
|
_____
|
_____
|
| SUGAR-Fresh product
|
gr
|
4,2
|
_____
|
_____
|
| SUGAR-Dry matter
|
%
|
18,3
|
_____
|
_____
|
| ALMIDON-Fresh product
|
gr
|
12,7
|
_____
|
_____
|
| ALMIDON-Dry matter
|
%
|
55,2
|
_____
|
_____
|
| Dietary fiber-Fresh product
|
gr
|
3,0
|
_____
|
_____
|
| Dietary fiber-Dry matter
|
%
|
13,0
|
_____
|
_____
|
| FATS-Fresh product
|
gr
|
0,1
|
_____
|
_____
|
| FATS-Dry matter
|
%
|
0,4
|
_____
|
_____
|
| PROTEINS-Fresh product
|
gr
|
1,6
|
_____
|
_____
|
| PROTEINS-Dry matter
|
%
|
7,0
|
_____
|
_____
|
