Next acclimate the seedlings to being outside by placing them in a. It is best suited for growing in US.
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Easily grown by the home gardener red lettuce can be planted in a garden bed or in a container and has four main growth stages.
Lettuce growing stages. Space your rows 12 to 18 inches apart. Lettuce requires 6 to 8 hours of direct sun but can also be grown in partial shade with 2-3 hours of sun. You can also grow lettuces in containers and growing bags but be sure to water regularly.
It can grow in hotter weather for short intervals but as tempera-tures remain above 80 degrees the lettuce will start to bolt into seeding. Leaf lettuce seedlings only need 4 between them while romaine and butterhead lettuce should be planted 6 to 8 apart. Romaine cos and butterhead loose-head Bibb Boston lettuce.
Your lettuce will take longer to grow in cooler temperatures but will taste better. Early and late sowings may need protection against cold using cloches plastic tunnels or horticultural fleece. Provide adequate spacing.
The application of fertilizers influences the growth and yield of lettuce. This in turn is caused by poor air circulation in rows that are planted too close together. Lettuce is a cool season annual crop tolerant of frost as low as 25F for well-hardened seedlings when immature but damaged by frost as it nears harvest maturity.
When direct sowing into the garden try using seed tape to achieve better spacing. The seeds germinate in low temperatures of about 4 C or 40 F. Head formation Corresponds to rosette stage in other plants.
The main stages of Lettuce growth are. Sow additional seeds every 2 weeks for a continuous harvest. Lettuce grows best at temperatures of 55 to 65 degrees Fahrenheit.
When sowing seeds directly into the soil you should plant approximately 10 seeds per foot. Planting the Seeds Download Article. Looseleaf cultivars are heat resistant and slow to bolt.
The crusting and browning of leaves may also be caused by bacterial rot. For growing lettuce 150-200 q ha of farmyard manure add 25 kg of both Nitrogen and potassium and 90 kg of phosphorus per hectare. The Growing Stages of Lettuce Lettuce Seed Germination.
Set rows of lettuce 12 to 15 inches apart. Then place the tray in a sunny window and keep the soil moist. Plant or thin to 4 inches apart.
It was shown that lettuce 2-true-leaves stage seedlings dipped in 10-15 ethanol solution for 2 minutes produced 20 more biomass than not dipped seedlings. Lettuce seeds remain dormant until the right combination of temperature and moisture stimulate. Thin leaf lettuce seedlings to 4 inches apart.
Seed Germination Seedling development Lettuce head development Harvesting and Bolting. Keep consistently moist and use. This also improves air circulation which may reduce rotting.
Giving romaine lettuce plenty of room to grow results in larger heads. Lettuce is a cool weather crop so it prefers cooler temperatures for its growth. Organic Lettuce is planted from late December to mid-August.
Irrigation in Lettuce Cultivation- Uniform moisture supply is very important for proper plant growth. To grow iceberg lettuce start by filling a shallow seed tray with soil and sprinkling a few seeds in each cell a few weeks before the last frost. Lettuce plant spacing.
Plant or thin to 8 inches apart. Grow lettuces in full sun in moisture-retentive soil. Plant or thin to 16 inches apart.
Four Seasons Merveille Des Quatres Saisons has red outer. The ideal temperature for growth of lettuce plants is 55 to 65 degrees Fahrenheit 13 to 18 degrees Celsius. Sow seeds thinly 13mm ½in deep in rows 30cm 1ft apart.
Name Lactuca sativa Family Asteraceae Type annual. Bibb is a traditional butterhead with a smaller compact head of short dark-green leaves with dark-red edges. Sow seeds in cool soils about ⅛ deep and firm gently into the ground.
When head is fully formed and grown plant considered to reach vegetative maturity and ready for harvest from 45 days after. For iceberg heads sow 15-18 apart in rows 12-18 apart. Department of Agriculture.
Temperatures over 70 degrees Fahrenheit can cause lettuce to start bolting. Lettuce types with no head or heart such as LooseleafHarvest these varieties whole or by the leaf as they mature. Space romaine plants at least 12 inches 30 cm apart.
Growth is extremely slow when temperatures are below 45F. Seedling Development in Lettuce Plants. Types of Butterhead Lettuce Buttercrunch is very tender and does better than other varieties in warmer climates.
The ideal growing temperature is between 60 to 65 F or 16 to 18 C. Rows should be spaced 12 to 18 apart but how far apart you plant individual lettuces will depend on the type. Lettuce should be planted in rows with the seeds planted just ¼ to ½ deep.
Irrigation should be carried out once in 4 to 5 days. Lettuce is an easy salad plant to grow which needs little space and is open to all even if all you have is a terrace or balcony. For baby leaf lettuce sprinkle 4-6 seeds per inch in bands about 2 apart.
Optimum daily temperatures for growth are 65 to 70F and night temperatures should be in the range of 45-50F. When planting lettuce be sure to respect its need for individual plant space and make sure it is well watered throughout the growing season. Beginning in early April plant at weekly intervals through mid-August.
An organically grown leaf Lettuce variety is direct-seeded using a four-bed precision planter planting 2-rows on 40-inch beds. After germination lettuce plants enter the stage when they develop roots and. Boston has a medium-large head of loosely arranged broad light-green leaves.
Height 8 to 12 inches 20 to 30 cm Exposure full sun part sun. Looseleaf lettuce should be thinned to 4-6 inches 10-15 cm apart. Little list of lettuce facts.
Romaine and butterhead lettuce seedlings require 6 to 8 inches between each plant. Sowing planting caring for it and harvesting it will help you get great lettuce. Fields are planted to a stand of 156000 plants per acre at 2 to 3-inch plant spacing.
Part 1 of 3. Usually germination of lettuce seeds depends on temperature. Loose-leaf varieties grow faster than the other types and can grow in low light.
How and when to sow. The ideal temperature is required for lettuce is about 20 C to 22 C. On sandy and sandy loam soils without manure 40-50 kg of Nitrogen and 75-100 kg of phosphorus and potassium per hectare should be applied.
Lettuce will grow faster in higher temperatures but it can be bitter if you dont harvest when the plant is young.
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