It’s hard to call zucchini a difficult garden crop to grow.
In addition, the plant pleases with an excellent yield from year to year, but here's the problem: you will hardly be able to treat all your loved ones with zucchini if the vegetables suddenly start to rot in the garden, without having time to grow to normal sizes.
To ensure that there are enough zucchini for everyone, it is worth understanding the reasons that led to such a disastrous result.
First of all, examine the fruits, after which you can draw conclusions and take appropriate measures.
In this case, the plant is most likely experiencing a calcium deficiency. To compensate for the lack of this element, use a calcium nitrate-based fertilizer. It is prepared at a rate of 15 ml of the preparation per 10 liters of water.
In the opposite case, when the rot begins to spread from the base, the squash may lack boron. Accordingly, the gardener's task is to eliminate the deficiency of this element, which can be done by spraying the beds with boric acid - 2 g per 10 liters of water.
Use iodine – dissolve 30 drops in 10 liters of water and water the plants whose fruits are completely rotting.