In order for the fruit of paradise, also known as persimmon trees, to grow well and produce a crop of sufficient maturity, they must receive sufficient water from the soil. Care should be taken to ensure adequate and regular irrigation in the spring and summer months when shoot development and fruit growth occur. If irrigation is insufficient during these periods, fruit shedding occurs. Fruit development also stops. With irregular irrigation, there are cracks in the fruits. In addition, irrigation close to the fruit harvest time causes the fruits to crack. For this reason, irrigation should not be done after the peel color changes from green to yellow. Irrigation should also be done during the dry fall and winter months, but irrigation periods should be longer. The amount and frequency of irrigation water varies according to weather, soil and irrigation systems. Fertilization The amount of fertilizer to be given to the tree or sapling should be determined according to the results of the leaf and soil test. Well-burnt farm manure should be given every 3 years in the autumn with the calculation of 3-4 tons per decare and should be mixed with the soil by plowing. Persimmon needs a lot of nitrogen. According to the test results, one third of the amount of nitrogen that should be given can be given in early spring and the remaining part can be given in April-May and June. Excessive amounts of nitrogen fertilizer will cause flower and fruit dropping. After the nitrogen fertilizer is given to the pits opened in the crown projection of the tree, the soil should be hoeed to ensure that the fertilizer is buried in the soil and watering should be done immediately. Phosphorus fertilizers can be given in November-December. This fertilizer has an effect on flowering, fruit set and root development. Potassium fertilizers have an effect on fruit quality. The leaf tips and edges of trees with excessive potassium deficiency turn yellow and dry. Excessive fruit dropping is observed. Potash and phosphorus fertilizers are applied together in November-December. These fertilizers are given to the pits opened in the crown projection of the tree and covered with soil or applied to 5-6 pits opened in the crown projection and covered with soil. Magnesium deficiency is common in soils that are insufficient in additives. Magnesium uptake decreases in soils with too much potassium and magnesium deficiency occurs. Symptoms of magnesium deficiency are seen in summer when the tree is overloaded with fruit. Deficiency symptoms are yellowing between the veins of the lower leaves on the fruiting branches. In the advanced stage, the yellowing parts turn black and the leaves fall prematurely. Manganese deficiency occurs when the manganese content of the soil is low or the soil is too calcareous. Deficiency symptoms appear as black spots on the lower leaves of new shoots in early May. In advanced cases, it is also seen on the upper leaves of the shoot. Manganese deficiency causes leaf and fruit fall. In manganese deficiency, foliar fertilizer is recommended immediately after fruit set.
Symptoms of iron deficiency are yellowing between the veins of young leaves. Leaf veins remain green. Iron deficiency is seen in very calcareous soils. In soils with very high pH, the pH of the soil can be lowered to some extent by applying 40-50 kg of powdered sulfur per decare. In addition, ferrous sulfate or other ferrous preparations can be used. Foliar fertilizers should be applied early in the morning or in the afternoon. In order to make correct fertilization in the persimmon orchard, leaf analysis should be done first. For this purpose, samples are taken in August from five-month-old leaves in the middle of the one-year-old and fruitless shoots formed in the spring.
