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فروش نهال های یکساله و دوساله توت آمریکایی


فروش نهال-6

فروش نهال

تعداد 40 هزار نهال توت آمریکایی با بستر کشت پاکتی و گلدانی در ابعاد ارتفاعی 30 تا 70 سانتیمتر آماده فروش می باشد.

این درخت بومی و در طراحی فضای سبز بر روی خاک های فقیر با آب و هوای بسیار سرد و بسیار گرم و وزش بادهای تند قابل کشت و رویش می باشد. از درختان توت آمریکایی جهت احیاء اراضی و کنترل فرسایش نیز استفاده می شود. شوری خاک را تحمل کرده و در اکثر استان های بیابانی کشور همچون یزد، کرمان، اصفهان، سیستان و بلوچستان، قم، خراسان جنوبی، خراسان رضوی، تهران، مرکزی قابلیت کشت دارد.

میوه های درشت  و برگهای سبز براق آن از جلوه های رویش این درخت در طراحی فضای سبز محسوب می شود.

 

 

فروش نهال-1

Maclura pomifera 

Ecological aspects of historical distribution

The natural mechanism of seed dispersal for Osage orange, and the reason for its limited historical range despite its adaptability, has been the subject of debate. One hypothesis is that the Osage orange fruit was eaten by a giant ground sloth that became extinct shortly after the first human settlement of North America. Other extinct Pleistocene megafauna, such as the mammoth, mastodon and gomphothere, may have fed on the fruit and aided in seed dispersal. An equine species that became extinct at the same time also has been suggested as the plant’s original dispersal agent because modern horses and other livestock will sometimes eat the fruit. However, a 2015 study indicated that Osage orange seeds are not effectively spread by horses or elephant species.

The fruit is not poisonous to humans or livestock, as shown by several studies. However, it is mostly inedible due to its taste and its extremely hard texture. The seeds of the fruit are edible and it is sometimes torn apart by squirrels to get at the seeds, but few other native animals make use of it as a food source. This is unusual, as many large fleshy fruits serve the function of seed dispersal by means of their consumption by large animals.

Cultivation

Maclura pomifera prefers a deep and fertile soil, but it is able to adapt to be hardy over most of the contiguous United States, where it is used as a hedge plant. It must be regularly pruned to keep it in bounds, and the shoots of a single year will grow one to two metres (3–6 ft) long. A neglected hedge will soon become fruit-bearing. It is remarkably free from insect enemies and fungal diseases. A thornless male cultivar of the species exists and is vegetatively reproduced for ornamental use. M. pomifera is cultivated in Italy, former Yugoslavia, Romania, former USSR, and India.

Moisture content of fresh fruits is about 80%.

Uses

The Osage orange is commonly used as a tree row windbreak in prairie states, which gives it one of its colloquial names, “hedge apple”. It was one of the primary trees used in President Franklin Delano Roosevelt’s “Great Plains Shelterbelt” WPA project, which was launched in 1934 as an ambitious plan to modify weather and prevent soil erosion in the Great Plains states, and by 1942 resulted in the planting of 30,233 shelterbeltscontaining 220 million trees that stretched for 18,600 miles (29,900 km). The sharp-thorned trees were also planted as cattle-deterring hedges before the introduction of barbed wire and afterward became an important source of fence posts. In 2001, its wood was used in the construction in Chestertown, Maryland of the Schooner Sultana, a replica of the HMS Sultana (1768).

The heavy, close-grained yellow-orange wood is very dense and is prized for tool handles, treenails, fence posts, and other applications requiring a strong dimensionally stable wood that withstands rot. Although its wood is commonly knotty and twisted, straight-grained Osage orange timber makes very good bows. In Arkansas, in the early 19th century, a good Osage bow was worth a horse and a blanket. Additionally, a yellow-orange dye can be extracted from the wood, which can be used as a substitute for fustic and aniline dyes. At present, florists use the fruits of M. pomifera for decorative purposes.

When dried, the wood has the highest BTU content of any commonly available North American wood, and burns long and hot.

Unlike many woods, Osage orange wood is very durable in contact with the ground. Smaller logs make good fence posts, being both strong and durable. They are generally set up green because the dried wood is too hard to reliably accept the staples used to attach the fencing to the posts. Palmer and Fowler’s Fieldbook of Natural History 2nd edition, rates Osage orange wood as being at least twice as hard and strong as white oak (Quercus alba).

Although Osage oranges are commonly believed to repel insects, there is insufficient evidence to support this. Research has shown that compounds extracted from the fruit, when concentrated, may repel insects. However, the naturally occurring concentrations of these compounds in the fruit are far too low to make the fruit an effective insect repellent. In 2004, the EPA insisted that a website selling M. pomifera fruits online remove any mention of their supposed pesticidal properties as false advertisements.

فروش نهال-5

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فروش نهال-3 فروش نهال-2

 

 

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