# Agrodatabase/21 - Crop Prontuary - Data/Lettuce

| Lettuce | Units | Average | Range | Valuation |
| CLIMATE | _____ | _____ | _____ | _____ |
| TEMPERATURE | _____ | _____ | _____ | _____ |
| FROST plant | Cº | _____ | _____ | SENSITIVE |
| AIR TEMPERATURE - Zero vegetation | Cº | _____ | 4-5 | _____ |
| GERMINATION-SEEDLINGS | Cº | _____ | 15-20 | _____ |
| TEMPERATURE - optimize GERMINATION | Cº | 30,0 | _____ | _____ |
| VEGETATIVE DEVELOPMENT | Cº | _____ | 15-20 | _____ |
| VEGETATIVE development-night | Cº | 20,0 | minima | _____ |
| HEIGHT M. (COOL IN THE TROPICS) optimize | m | _____ | 500-800 | _____ |
| WATER | _____ | _____ | _____ | _____ |
| RESISTANCE TO THE DROUGHT | _____ | _____ | _____ | NOT TOLERATED |
| BORON-WATER IRRIGATION | mg/lt | _____ | 3,75-2,5 | TOLERANT |
| SOIL | _____ | _____ | _____ | _____ |
| PHYSICAL PROPERTIES SOIL | _____ | _____ | _____ | _____ |
| FRANCS - light | _____ | _____ | _____ | PREFER |
| SOIL WATER | _____ | _____ | _____ | _____ |
| DRAINED | _____ | _____ | _____ | DEMANDING |
| PHYSICAL AND CHEMICAL PROPERTIES | _____ | _____ | _____ | _____ |
| PLANT tolerance to pH acid | pH | _____ | 6-6,8 | SENSITIVE |
| dS/m affects crop | dS/m | 1,3 | _____ | _____ |
| SALINITY IN THE SOIL-TOLERANCE TO PLANT | _____ | _____ | _____ | MODERATELY |
| MATTER ORGANIC - HUMUS | _____ | _____ | _____ | VERY DEMANDING |
| NUTRITIONAL ELEMENTS | _____ | _____ | _____ | _____ |
| NITROGEN-sheet-enough | ppm | 8.000,0 | _____ | _____ |
| NITROGEN-sheet-deficient | ppm | 4.000,0 | _____ | _____ |
| PHOSPHORUS-sheet-enough | ppm | 3.000,0 | _____ | _____ |
| PHOSPHORUS-sheet-deficient | ppm | 2.000,0 | _____ | _____ |
| potassium-leaf - enough | % | 3,0 | _____ | _____ |
| POTASIO-hoja - deficient | % | 2,0 | _____ | _____ |
| manganese-LACKS | _____ | _____ | _____ | SENSITIVE |
| COPPER-LACKS | _____ | _____ | _____ | SENSITIVE |
| molybdenum-LACKS | _____ | _____ | _____ | SENSITIVE |
| BORON-LACKS | _____ | _____ | _____ | MODERATELY |
| FERTILIZATION | _____ | _____ | _____ | _____ |
| N-EXTRACTIONS-UF / Ha | fu/ha | 65,0 | _____ | _____ |
| P-EXTRACTIONS-UF / Ha | fu/ha | 25,0 | _____ | _____ |
| K-EXTRACTIONS-UF / Ha | fu/ha | 120,0 | _____ | _____ |
| Ca-EXTRACTIONS-UF / Ha | fu/ha | 40,0 | _____ | _____ |
| Mg-EXTRACTIONS-UF / Ha | fu/ha | 12,0 | _____ | _____ |
| N-EXTRACTIONS-UF / Tons | fu/tm | 2,6 | _____ | _____ |
| P-EXTRACTIONS-UF / Tons | fu/tm | 1,0 | _____ | _____ |
| K-EXTRACTIONS-UF / Tons | fu/tm | 4,8 | _____ | _____ |
| Ca-EXTRACTIONS-UF / Tons | fu/tm | 1,6 | _____ | _____ |
| Mg-EXTRACTIONS-UF / Tons | fu/tm | 0,5 | _____ | _____ |
| fertilizer N-high (Kg-UF/Ha) | fu/ha | 100,0 | _____ | _____ |
| fertilizer N-medium (Kg-UF/Ha) | fu/ha | 130,0 | _____ | _____ |
| fertilizer N-low (Kg-UF/Ha) | fu/ha | 160,0 | _____ | _____ |
| fertilizer P-high (Kg-UF/Ha) | fu/ha | 30,0 | _____ | _____ |
| fertilizer P-medium (Kg-UF/Ha) | fu/ha | 45,0 | _____ | _____ |
| fertilizer P-low (Kg-UF/Ha) | fu/ha | 60,0 | _____ | _____ |
| fertilizer K-high (Kg-UF/Ha) | fu/ha | 60,0 | _____ | _____ |
| fertilizer K-medium (Kg-UF/Ha) | fu/ha | 90,0 | _____ | _____ |
| fertilizer K-low (Kg-UF/Ha) | fu/ha | 120,0 | _____ | _____ |
| Manure / has | ton/ha | 22,0 | 20-25 | _____ |
| fertilizer N-high (Kg-UF/Tons) | fu/tm | 4,0 | _____ | _____ |
| fertilizer N-medium (Kg-UF/Tons) | fu/tm | 5,2 | _____ | _____ |
| fertilizer N-low (Kg-UF/Tons) | fu/tm | 6,4 | _____ | _____ |
| fertilizer P-high (Kg-UF/Tons) | fu/tm | 1,2 | _____ | _____ |
| fertilizer P-medium (Kg-UF/Tons) | fu/tm | 1,8 | _____ | _____ |
| fertilizer P-low (Kg-UF/Tons) | fu/tm | 2,4 | _____ | _____ |
| fertilizer K-high (Kg-UF/Tons) | fu/tm | 2,4 | _____ | _____ |
| fertilizer K-medium (Kg-UF/Tons) | fu/tm | 3,6 | _____ | _____ |
| fertilizer K-low (Kg-UF/Tons) | fu/tm | 4,8 | _____ | _____ |
| NITROGEN-preSOWING | % | _____ | 1/2 | _____ |
| NITROGEN-DEVELOPMENT PLANT | % | _____ | 1/2 | _____ |
| PHOSPHORUS-preSOWING | % | 100,0 | _____ | _____ |
| POTASSIUM-preSOWING | % | 100,0 | _____ | _____ |
| TECHNIQUES OF CULTIVATION | _____ | _____ | _____ | _____ |
| SEEDING-PLANTING | _____ | _____ | _____ | _____ |
| SEEDS-WEIGHT (Gr / 1000 SEEDS) | gr | 0,7 | _____ | _____ |
| N °-SEEDS/GR. | seeds/gr | 800,0 | _____ | _____ |
| SEED germination capacity years | years | 3,0 | _____ | _____ |
| GERMINATION, TEMPERATURE OPTIMA | days | 8,0 | _____ | _____ |
| SEED NURSERY, GR / HAS. CULTIVATED | gr/ha | 300,0 | _____ | _____ |
| DEPTH, CM. | cm | 0,6 | _____ | _____ |
| TRANSPLANTING, plant height cm. | cm | 8,0 | _____ | _____ |
| TRANSPLANT, LENGTH NO. LEAVES | nº | _____ | 5-6 | _____ |
| TABLE, WIDTH BETWEEN CENTRES | m | 0,9 | 0,8-1,0 | _____ |
| TABLE, N ° - ROWS | nº | 2,0 | _____ | _____ |
| KG. SEED-TUBERS-bulbs/HA. | kg/ha | 2,5 | 2-3 | _____ |
| N °-PLANTS-TUBERS/HA. | plants/ha | 35.000,0 | _____ | _____ |
| TRANSPLANT, DAYS FROM SOWING/PLANTING | days | _____ | 30-40 | _____ |
| PLANTING distance lines m. | m | 0,5 | _____ | _____ |
| PLANTING distance plants m. | m | 0,3 | 0,25-0,30 | _____ |
| HARVESTING WORK | _____ | _____ | _____ | _____ |
| AVERAGE production tonnes / has. | ton/ha | 25,0 | _____ | _____ |
| POSTHARVEST-MARKETING | _____ | _____ | _____ | _____ |
| TEMPERATURE OF STORAGE | Cº | 1,0 | _____ | _____ |
| STORAGE HUMIDITY % | % | _____ | 90-95 | _____ |
| COLD STORAGE TIME | weeks | 3,0 | 2-4 | _____ |
| COMPOSITION FOOD | _____ | _____ | _____ | _____ |
| Water-Fresh product | gr | 96,0 | _____ | _____ |
| Dry matter-Fresh produce | gr | 4,0 | _____ | _____ |
| ENERGY-Fresh product | kcal | 13,0 | _____ | _____ |
| POWER-dry matter | kcal | 325,0 | _____ | _____ |
| Carbohydrates-Fresh produce | gr | 2,2 | _____ | _____ |
| Carbohydrates-Dry matter | % | 55,8 | _____ | _____ |
| SUGAR-Fresh product | gr | 0,9 | _____ | _____ |
| SUGAR-Dry matter | % | 23,5 | _____ | _____ |
| Dietary fiber-Fresh product | gr | 1,1 | _____ | _____ |
| Dietary fiber-Dry matter | % | 27,5 | _____ | _____ |
| FATS-Fresh product | gr | 0,2 | _____ | _____ |
| FATS-Dry matter | % | 5,5 | _____ | _____ |
| PROTEINS-Fresh product | gr | 1,4 | _____ | _____ |
| PROTEINS-Dry matter | % | 33,8 | _____ | _____ |