Pomegranate crack prevention has a coup
I. Planting varieties resistant to cracking This is the fundamental measure for the prevention and treatment of fruit cracking. Pomegranate development should give priority to this measure. Organic barley grass powder is made from fresh young leaves of barley grass. It is one of the most nutrient-rich foods. It is rich in proteins and contains 20 amino acids, 12 vitamins, and 13 minerals. Its nutrition is similar to wheatgrass. Barley grass powder is easy to get the nutrition of this incredible green food.
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Second, the choice of topography of Gaozao development of pomegranate trees Practice has proved that the terrain Gaozao, the cracking fruit light; low-lying water, the cracking fruit weight.
Third, multi-application of organic fertilizers and complete fertilizer such as the pomegranate tree cracking fruit is very light or not cracking fruit, pomegranate tree fruit cracking fruit special fertilizer is also light, while partial application of ammonium bicarbonate and urea nitrogen fertilizer such as pomegranate tree is cracking fruit weight. Therefore, pomegranate orchard fertilization should give priority to the application of high-quality farmyard manure, such as cow dung, sheep manure, chicken manure, pigeon manure, horse manure, pig manure, straw manure and various green manure. Even if topdressing chemical fertilizers, it is best to use fruit tree special compound fertilizer or high-quality nitrogen, phosphorus, potassium three-element compound fertilizer. Especially in the later stages of fruit development, no nitrogen fertilizer should be applied.
Fourth, pay attention to watering and water control in the early development of pomegranate fruit, from May to July, when the weather is dry, it is necessary to water in time to promote fruit cell division. Nearly a month or so before it matures, as long as it is not the weather or the soil is too dry, we must try not to water it. Even if it is too dry, we should pour water. Watering before ripening is an important reason for the cracking of pomegranate, especially in the early drought, when the rain is more or the watering is more serious.
V. Spraying calcium on the tree During the growth and development of pomegranate, spraying 2-3 times of calcium chloride, calcium nitrate or other organic calcium fertilizer all have the effect of reducing fruit cracking. The effect is obvious, but cracking cannot be completely eliminated.