آرشیو آذر ماه 1400

مرجع رسمي مقالات پسته

US pistachio exports decline in one year

۲۱ بازديد

Sales in May were better than expected, pistachio shell down just 10 percent from a year earlier, and taking into account total sales of 28 percent compared to last year. There is a lot of buying and selling right now, there is a flurry of demand in the market. Traders in the Chinese market appear to have finally entered into 2014 contracts with less expensive intermediaries. The immediate selling price of the product in the Chinese market is about $ 9.15 per kilogram. 28% drop in US pistachio exports (2) New year product is good. Most growers and garden managers expect the New Year's crop to be more than 700 million tons (317,000 tons), and they believe that there will not be many empty pistachios this year. This will definitely be known by mid-August. Currently, limited purchases have been made from China for the months of October and November at a price of about $ 8.40 per kilogram. There seems to be an increase in demand for early sales early in the Chinese New Year.

Pistachio root beetle pest

۲۱ بازديد

Prevention of pistachio root beetle pistachio shell damageIt is better to keep the garden trees fresh and strong with more and more continuous care. Measures such as plowing the soil around the trees, fertilizing at least once every two years and also pruning every year cause the trees to flourish and pests such as these are considered secondary pests. They are not able to attack lush trees and do not come to such gardens.
If for some reason garden trees become infected with pistachio root beetle, it can be combated in the following ways:
Spray a mixture of six per thousand endosulfans in water around the crown (where the trunk of the tree is in the soil), the time of this spraying is in the spring. 

Climatic and ecological conditions necessary for pistachio production

۲۳ بازديد

Areas of the country in terms of pistachio shell climate and environmental conditions are suitable for growing pistachios that have very cold winters and hot and long summers, and usually these conditions are provided at an altitude of 800 to 900 meters above sea level and in Kerman to An altitude of 1850 meters has also been planted.
However, the summer heat is necessary for the growth and development of pistachio kernels. Spring rains Late spring frosts as well as hot and dry winds in spring prevent inoculation and high humidity during the growing season intensifies the attack of fungal diseases on pistachio trees.
Pistachio tree needs at least 1000 hours of cold (less than 7 degrees Celsius) in winter and if it is less than 670 hours, flowering and leafing of the tree will be delayed. Chemicals or auxiliaries will not be effective in eliminating this deficiency.
Pistachio tree can be easily planted in most soils with different texture and material, so that in calcareous and saline soils it has better endurance and tolerance than other fruit trees, but in fertile, shallow, hard and rocky lands to produce good Does not bring.
The best soil for pistachios is sandy clay soils that have good ventilation and drainage. The deeper and more uniform the depth, the better the tree will grow and produce more. As mentioned before, the root of the pistachio tree is water-repellent and survives in severe dehydration. However, economically, the best planting and crop production results are obtained when the tree is well watered and irrigated according The pistachio tree needs to be adjusted to the climatic conditions of the place.

Complication of sunburn of pistachio fruit

۲۲ بازديد

Complication of pistachio sunburnIntensity pistachio shell of sunlight and increase in temperature to a greater extent than the plant can tolerate (35-38 ° C depending on the variety) causes sunburn on pistachio fruit. In the part of the fruit that has been exposed to intense sunlight, the skin cells of the green skin and sometimes the bony skin of the fruit are destroyed and a necrotic and black state is seen.
The embryos of most sunburned fruits are aborted, and these fruits are seen as hollow and half-brain at harvest. Different cultivars of pistachios have different sensitivities to this complication. Among the important commercial cultivars of pistachio, Mumtaz cultivar is the most sensitive and Akbari cultivar is the most resistant cultivar to this complication.
Complication-sun-burn-on-fruit-pistachio
Factors affecting the severity of sunburnFactors affecting the severity of sunburn in pistachio fruit are:
Intensity and duration of sunlight and increase in ambient temperature.All the factors that increase the reflection of solar radiation increase the intensity of sunburn, for example, in cases where the soil surface is due to salinity, shiny and white, due to the almost complete reflection of solar radiation, sunburn on the fruits of the branches. High pistachios are formed.The lighter (sandy) the soil texture, the lower its moisture storage. On the other hand, the reflection of sunlight in sandy textures is more. Therefore, more sunburn occurs in sandy tissues.Low relative humidity and low vegetation on the garden surface.Thick green skin and green skin and bony skin due to genetic and nutritional factors.Severe pruning of a part of the tree to expose some of the fruits that were previously in the shade to strong sunlight.Lack of proper direction of planting rows due to climatic conditions and latitude.Pest damage such as age, skin-eating moth and fruit-eating moth damage green skin and bony skin and increase fruit sensitivity to sunburn.Gonorrhea and nematode diseases of pistachio root glands increase sensitivity to sunburn due to reduced leaf cover and impaired absorption and movement of nutrients.Increasing the length of irrigation cycle, especially in the hot months of the year, intensifies sunburn.Irregular irrigation and water stress reduce the moisture of green skin and intensify sunburn.Rainfall and spraying and untimely spraying on fruits during intense sunlight in July and August, causes water droplets on green skin. These water droplets act like a magnifying glass and intensify sunburn.Damage to the green skin of pistachio fruit due to factors such as foliar spraying, improper spraying and hail causes stains on green skin and sunburn intensifies. It is more common, because alkalinity is also seen as a spot, sunburn is also seen as a spot in the garden.Calcium deficiency due to too much magnesium in the soil solution increases the fruit's sensitivity to sunburn. Pistachio fruit needs a lot of calcium due to its bone tissue. Calcium deficiency may not be observed in the leaves, but the amount of calcium is not enough for proper fruit growth.Nitrogen poisoning in pistachio fruit is similar to sunburn, except that gum comes out of the tips of some seeds.

Botanical characteristics, economic importance and important pistachio species

۳۲ بازديد

Botanical characteristics, economic pistachio shell importance and important pistachio speciesPistachio is one of the agricultural products that is mixed with the name of Iran and has a long history and in the current century with the beginning of exports, gained special economic and commercial value and Iran is the first and most important exporter of pistachios in the world (Sami et al., 1384). The word pistachio is an Iranian word derived from the dialect of the people of Khorasan in ancient times. Forests and car masses of pistachio trees have been present in a large part of Khorasan since ancient times (Abrishami, 1373).
Pistachio tree was domesticated and cultivated in Iran 3 to 4 thousand years ago (Sheibani et al., 1995). Perhaps the oldest document about the historical background of pistachio cultivation in Iran can be considered in the travelogue of Herodotus, a famous Greek historian who wrote a research on pistachio production and its place in Iran (Mohammadkhani, 1997).
Pistachio or green gold as a strategic product has a special place among agricultural products. A large amount of non-oil exports is dependent on pistachios (Panahi et al., 2001). From the past until now, Iran has been considered as one of the largest producers of pistachios in the world.
Level of pistachio production in the countryAt the national level, Kerman province, with 76.5% of the fertile level of pistachios and 64.5% of the production of this product (based on the latest documented statistics) has the first place in the level and production. In Kerman province (especially Rafsanjan city) more than 300,000 hectares of land are under cultivation of this crop (Ardestani and Moazeni, 1390).
Planting pistachio trees is now widespread in various parts of the world. In Asia, in addition to natural growing areas, pistachio trees are grown in Syria, Turkey, Jordan, Cyprus, Lebanon, Palestine, Yemen and China. In Europe, Italy and Greece, in Africa, Tunisia and the Maghreb, and in the United States, in the United States, pistachio trees are grown (Abrishami, 1373).

Major export prices of dried fruits

۲۲ بازديد

The prices of dried fruits for export are pistachio shell very high for foreign and domestic customers, and you can buy them at more reasonable prices from our websites and centers. The sale of dried fruits and the purchase of dried fruits in our country have increased a lot, and they buy a lot. Sold and the price of tasty dried fruits is constant throughout the year and may also fluctuate in price, which depending on the model of dried and mixed fruit and according to the opinion of their producers have different prices and you You can buy them with great discounts and at the best exceptional prices and enjoy their taste and properties.
Major export prices of dried fruitsInformation about the properties of dried fruitInformation about the properties of dried fruits The properties of dried fruits are high for you and by eating dried fruits, a lot of energy is absorbed by your body and your nerves are strengthened and calmed, and if you want to eliminate them from your food and help your digestive system. It is better to eat delicious and tasty dried fruit in the snack, which relieves headaches, stress and many problems of your body quickly, and provides good nutrients and minerals to your body, and fiber and antioxidants. It carries a lot of nutrients in your body with which you can have a stronger body, and also the excellent ingredients in these dried fruits can help treat many physical problems such as diabetes and osteoporosis.
Excellent songs and magnesium and excellent antioxidants for you in these dried fruits that are better than pregnant women and people whose body is weak to consume them in the evening and between meals and breakfast to treat thyroid. And their constipation does not matter and their natural sugar can be useful for you and it does not make you fat and it also makes you fit and it is very tasty and by eating them, you will not get diarrhea and disease, but your body vitamins will increase. And your bones will be stronger and stronger with these dried fruits.

Consumption of organic fertilizers for pistachio trees

۲۳ بازديد

Consumption of organic fertilizers pistachio shell for pistachio treesOrganic fertilizers are divided into three main categories based on their origin: animal, plant, and mixed. The benefits of organic fertilizers are as follows:
These fertilizers may be able to provide the plant with all the essential nutrients it needs. Another importance of organic fertilizers is to improve and increase soil permeability to the climate and thus root or plant permeability.

Exceptional sales of dried fruits for export

۲۴ بازديد

Dried fruit is one of the most exceptional foods pistachio shell produced in the country, which is both delicious and a snack, and has gained a lot of fans. Exceptional sales of dried fruits are exported in the country, which reaches customers at a significant price, which is why the welcome to buy this product is well seen. The price of dried fruit is cheaper than fresh fruit, which is why it has many buyers.

The correct method of using potash fertilizers in pistachio orchards

۲۶ بازديد

The correct method of using potash pistachio shell fertilizers in pistachio orchards
Unfortunately, in the past, due to the lack of potash fertilizers in pistachio orchards and excessive depletion of potassium in the soil, trees have faced long-term problems. Statistical studies show that more than 60% of gardens in Kerman province are deficient in potassium and it is difficult to bring the yield to the desired level in these gardens in the short term.
Since the need for potassium in pistachio trees is the same as nitrogen (slightly less) and given that potassium has a very important role in the quantity and quality of the product should be given special attention. Potassium plays an important role in regulating the water system and plant sap concentration, which is vital in arid and saline soils. In case of symptoms of deficiency of 1-3 kg of potash fertilizer for each tree in the form of manure or fertilizer tape, fertilizers that are used to supply potassium to the pistachio tree are recommended. 48% of potassium, potassium chloride is recommended only in non-saline soils.

The role of soil pH in absorbing the required elements of pistachios

۲۳ بازديد

The role of soil pH in absorbing pistachio shell the required elements of pistachiosAnother major factor in nutrient uptake by trees from soil is soil acidity or soil pH. Soil acidity directly affects soil microorganisms as well as the uptake of various nutrients. Soil pH determines which elements are absorbed by the roots and which are not.
At low acidity (acidic pH) elements such as zinc, manganese, aluminum, copper and cobalt are highly absorbable and, conversely, at high pH can not be absorbed by plants. This is what has happened in the soil conditions of pistachio orchards in Kerman province and has caused the lack of microelements to be observed in almost all pistachio orchards due to the high pH of the soil.
Highly alkaline soils of Kerman province have large amounts of bicarbonate ions, which unfortunately have a negative impact on the growth and development of trees and also interfere with the absorption of other elements needed by pistachio trees.
Typically, macronutrients are less absorbed by trees at low pH or less acidic conditions, and conversely, microelements at lower pH or alkaline conditions are less likely to be absorbed by tree roots.
Adding lime to improve soil condition in pistachio orchards is a big mistake that unfortunately some farmers do unknowingly because lime raises the pH of the soil drastically and not only does it not improve soil conditions in pistachio-rich areas. Rather, it greatly increases the alkalinity of the soil.