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by: DaveTruman
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Lettuce is a great addition to any vegetable gardening. Not only is it healthy to eat, it takes up very little space, unlike pumpkins. But for an optimal crop a few simple guidelines are helpful.
As with all vegetable gardening, good soil is a must. Keep the nitrogen level high by the use of a good 30-10-10 NPK (nitrogen, phosphorous, potassium) fertilizer. That gives them lots of nutrition for producing healthy leaves.
Plant the seeds about 1/8-3/8 inch deep, separated by 6-12 inches (2-3.5 m) from the next plant. Romaine does fine at the smaller spacing, but crisp lettuce needs more room. If you plant in rows, keep the rows separated by about 20 inches (6m). Keep in mind that seeds shouldn't be planted too early, since they're subject to cold damage.
The roots of lettuce do not grow very deep so it is important to weed often. Many other grasses and plants with deeper root growth can invade the lettuce.
Since lettuce lacks deep root growth it has to find moisture near the surface. Therefore it is important to keep the soil moist but not saturated. Try to keep the water off of the leaves and into the soil except for the occasional washing. Wet leaves especially during nighttime temperatures can lead to disease.
Like any other vegetable, lettuce plants have problems with diseases and pests. Many insects enjoy the lettuce leaves and the folds of the leaves also offer many places for fungi to grow.
Aphids, flea beetles, leafhoppers, slugs and cutworms are common insects that feast on lettuce. Washing the leaves with a high-pressure hose can temporally help get rid of the insects. Insecticide lightly applied to the lettuce will provide better long-term control.
One common fungal disease is anthracnose (Microdochium panattonianum). This fungus can stay alive in soil for many years. Bottom rot (Rhizoctonia solani) is another common fungus. This type of fungus usually occurs in soil that drains poorly. To combat these fungi, keep foliage dry and plant in good soil.
Another common problem with lettuce is bolting. Bolting is not a disease or pest but occurs when the plant goes to seed and the leaves stop growing. Bolting happens when the temperatures are consistently too high. To prevent this from happening, plant lettuce in shaded area or plant next to a shading crop such as corn.
With the proper preparation, planting technique and care you can have lettuce several times during a growing season.
Looking for creative ideas for your vegetable garden layout? Search no more - visit the Vegetable Gardeners website at http://www.vegetablegardeners.com for lots of helpful ideas and tips. Plus get your own copy of our free reports for growing better vegetables.