Il marciume apicale

The decay of the flower is a fairly common physiopathy in tomato cultivation.

The visible symptom of apical swelling is the presence of an area of hot consistency at the height of the external scar of the fruit. Posteriorly, the area becomes a light or dark brown colored lesion. As long as the saprophytic hair colonizes these lesions giving a gray or black coated appearance, as long as the soft black skin endures.

The favorable period for the recovery of the illness is between June and August, namely: Apical pudrición is caused by conditions associated with damage to the root system such as: sequia, high salinity of the soil, excess nitrogen (excess ammonium) , calcium deficiency.
Calcium (Ca), a fundamental element for the healthy and balanced growth of plants, cannot be absorbed in high humidity conditions, since transpiration is slowed down and the absorption of calcium, which is transported exclusively in the flow of transpiration, is limited .

In soils stored in water, the nitrification of the soil is reduced and, as a result, the levels of ammonium in the soil increase. In this situation, the blood is responsible for absorption with calcium.

The excessive use of nitrógen in the form of ammonium also prevents tomatoes from absorbing other important nutrients such as calcium; In this situation the risk of apical pudrica increases.

Although apical pruritus is usually associated with mature fruits, young and rapidly growing fruits are particularly susceptible to calcium deficiency. Sudden and extreme changes in water availability can cause fluctuations in fruit growth rates, which leads to apical growth.
I try to ensure the correct quantity of water and apply, reduce the use of fertilizers that contain nitrógen in the form of ammonium or excess magnesium. In the areas where there is apical cleansing, complete hydration and lithotamnium for the preparation of the soil.

Kit x pomodoro

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