The trick is knowing some of the most common vegetable gardening problems and knowing how to resolve them. Vegetable garden issues can be anything from insect infestations, to diseases or fungal infections, and to critters in the night (deer, 'wabbit', fox, etc.)
A quick guide to common vegetable gardening problems
One of the most frequent vegetable garden problems is dying seedlings soon after they emerge from the soil. This issue plagues greens (especially beans and peas), corn, and vine crops most frequently. Soil-originating fungus is sometimes the culprit. Other times, planting these crops (and various others) too early or late in the year when the temperature isn't warm enough or the soil isn't wet enough wet can lead to unfruitful results. Warm, slightly moist soil-as well as warm temperatures usually around 75-85 degrees-will give crops the best fighting chance.
Another vegetable gardening problem that's seen more in the South and Southeast comes in the form of tomatoes. They'll flower and act as if they're about to yield tomatoes, but never do. In this case, the most common cause is from temperature extremes-ranging from too hot to too cold. Typically, a temperature at night below 65o F and one in the day that's above 90 will stunt tomato crops from yielding much, if any, crop.
Tomato rot (upon full blossoming) is among the additional plethora of vegetable gardening problems. This form of rot is due to a lack of calcium in the later stages just before the crop produces a tomato. This can usually be mitigated by adding the appropriate amount of lime, mulch, fertilizer, and balanced watering schedule.
Weeds are every gardener's worst enemy, yet they're so abundant and pervasive in many regions. This results in substantially lesser yields because weeds love to rob the soil of nutrients, energy from sunlight, water, and even air-all of which are vital to any plant's life. Weeds are also notorious for harboring a variety of parasitic insects and fungal diseases.
Steel hoes are very effective tools to eradicate weeds. When a steel hoe is used right, it's a pretty accurate, effective, and affordable tool. Unfortunately, hoes can't normally do all of the work. Weeds at the plant's base have to be pulled up manually. Don't let weeds become comfortable in your garden before they're dealt with-or else, small weeds turn to big ones, and big weeds (when they're yanked out of the ground) pose a real threat to the actual vegetable crop's root system.
Mulch can help retain the dirt's moisture and also stunt weed growth. Much comes in two varieties: organic, and inorganic. Buy the organic mulch (or even make your own at home) if at all possible. How does one make organic mulch? Easy: you can use practically any mixture of compost, grass, manure, and tree bark you like.
A proper irrigation system is paramount, too
There's a ton of drip/trickle watering systems that are available through most garden stores and even online. A 'soaker hose' is probably the most affordable of the bunch and happens to be the easiest to use. These types of sprinklers work at minimal pressure and transfer small amounts of water to the garden over an extended amount of time.