Tomato watering guide
2023-11-18
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How often and how much water do tomatoes need? There is probably no perfect answer to this question, but our team has created an informative watering guide to make using the GRAAS irrigation system as simple and effective as possible.
On average, each tomato plant requires between 20 and 35 liters of water per week, though weather conditions, soil quality, and growing methods can significantly influence this amount. Tomatoes should be watered generously but infrequently. In cloudy, cool weather, water requirements may drop by half, while on hot, sunny days they may increase by up to 50%. To ensure the best growing conditions, we recommend maintaining the proper soil moisture level.
Your growing method also affects water needs. Tomatoes grown directly in soil require more water, while those in bottomless pots need slightly less. Average soil moisture during the day should remain between 60% and 85%, and at night between 65% and 75%.
For tomatoes to grow large, healthy, and attractive, they must be watered frequently with small amounts of water. With the GRAAS irrigation system, this important task becomes much easier. By maintaining the right soil moisture level, you ensure optimal plant growth and reduce the risk of various diseases.
Incorrect water amounts and soil moisture levels can quickly and severely damage your tomato plants, but these issues can be detected by visually inspecting the plants.
Yellowing leaves, root rot, mold, cracked fruit skin, slow growth, and unpleasant odor are key indicators of overwatering. The simplest way to avoid this is to reduce the amount of water given to the plant and ensure proper greenhouse ventilation. If the soil is excessively wet, replace part of it with fresh, dry soil.
On average, each tomato plant requires between 20 and 35 liters of water per week, though weather conditions, soil quality, and growing methods can significantly influence this amount. Tomatoes should be watered generously but infrequently. In cloudy, cool weather, water requirements may drop by half, while on hot, sunny days they may increase by up to 50%. To ensure the best growing conditions, we recommend maintaining the proper soil moisture level.
Your growing method also affects water needs. Tomatoes grown directly in soil require more water, while those in bottomless pots need slightly less. Average soil moisture during the day should remain between 60% and 85%, and at night between 65% and 75%.
For tomatoes to grow large, healthy, and attractive, they must be watered frequently with small amounts of water. With the GRAAS irrigation system, this important task becomes much easier. By maintaining the right soil moisture level, you ensure optimal plant growth and reduce the risk of various diseases.
Incorrect water amounts and soil moisture levels can quickly and severely damage your tomato plants, but these issues can be detected by visually inspecting the plants.
Yellowing leaves, root rot, mold, cracked fruit skin, slow growth, and unpleasant odor are key indicators of overwatering. The simplest way to avoid this is to reduce the amount of water given to the plant and ensure proper greenhouse ventilation. If the soil is excessively wet, replace part of it with fresh, dry soil.
A tomato cracked due to insufficient water.
When tomatoes receive too little water, the soil dries out, plant growth slows, and the plants begin to wilt. Leaves curl, twist, and dry up. To avoid these problems, gradually increase the amount of water provided — slowly and regularly. Tomato leaves curled due to insufficient watering.
Tomato cracked due to insufficient water.
If the amount of water is insufficient, the soil will dry out, the growth of the plant will slow down, and the tomatoes will begin to develop. Their leaves will shrivel up, curl up, and dry up. To avoid these unpleasant effects you will need to increase the amount of water administered. Do this gradually - with slow and regular increases in the amount of water administered.
Tomato leaves curled due to insufficient irrigation.