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آخرین مطالب
امکانات وب
Production of fertile clusters by pollination
Male flower buds open earlier than female buds. Female flower buds are pointed while male buds are spherical. Swelling and the number of buds of male flowers are more than those of females. The yellowing of the upper leaves of the tree and weakness are related to iron deficiency. A lack of copper in the soil causes the branches to become stiff and the skin to darken. Iranian Pistachio
The use of element in saline soils should be avoided. The element on is one of the elements that is useful in increasing the life of pollen. Giving a lot of water and increasing the irrigation circuit will wash the food in the soil. Due to the lack of water and the long irrigation cycle, the conditions for material absorption in the soil are not provided.
Potash plays an important role in plant resistance to salinity and pests. The number of male to female trees should be 1 to 9. One of the symptoms of pollen deficiency (male) is pocky and abortion. Pistachio trees have two legs and pollination is done by wind. The type of pruning in pistachio trees is cup and tuip.
Soil type and pistachio planting area
The best soil for growing pistachios is loamy soil. Pistachio trees need a lot of fertilizer to produce a good crop. In general, pistachio needs 600 grams of nitrogen per tree per year. Nitrogen, phosphorus and potash fertilizers are called basic fertilizers.
Nitrogen, phosphorus and potash fertilizers should be used in autumn due to low movement in the soil. Nitrogen, phosphorus and potash fertilizers should be used near the roots due to low movement. The symptoms of potassium deficiency can be solved by foliar spraying in 3 times. Zinc and calcium deficiency is more common in calcareous and alkaline soils. Zinc and Bar accelerate the growth of the pollen tube and increase insemination and fruit formation.
The most sensitive time for pistachio irrigation is July. Giving white manure with water before it is fully ripe will make you smile. 45% of pistachio pollination takes place between 9 and 11 o'clock. In 82% of cases, the wind blows from the east during pollination. At least one pollen grain must reach the female for fertilization. The best distance for the transfer of male to female pollen is less than twenty meters. Females receive male pollen for up to 3 days when they open.
Flowering of male trees is 7 days earlier than female trees. Choosing male and female cultivars that have the same flowering is one of the success factors. Weather conditions, variety, foundation, soil texture and nutritional conditions are the most important production factors.
Lack of air flow, rain and strong and stormy winds prevent pollination. If there is no pollination, the flowers will fall or they will be left on the tree. Pruning and feeding is the best way to control the aging. Annual pruning is necessary to adjust the amount of load according to the plant.
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برچسب : Iranian Pistachio, نویسنده : علی سلطانی taherpistachio بازدید : 108