The black square plastic plates offer many uses that experienced growers know how to take advantage of. Above all, with utilities related to irrigation and fertilization. They have a pyramidal shape such that the area of the base is a little smaller than the open top.

When we invest in fertilizers with the idea that our plants grow well, it is essential to analyze the leftover water every time we water. Measuring the pH again, for example, will give us an idea of ??the pH value of the root zone. This value, adjusted to 6.5 and 7, is what we really have to look for in the water collected in the dish to be sure of the acidity of the water allows maximum absorption of nutrients.

Similarly, measuring the Ec, of the water collected in the dish, and contrasting the result with the previously measured in the preparation of the nutrient solution, we will know exactly the level of fertilization demand of our plants.

Related to this, there is another obvious use for square plastic plates, which is irrigation by flood. With this irrigation system we can supply our plants with the nutrient solution in small doses that the roots will absorb by capillarity. This is a very effective way to control and save on fertilization, but great care must be taken to supply small amounts in order not to leave water leftover on the plate. Otherwise you could have root fungus problems.