نتایج جستجو برای: for five trees

تعداد نتایج: 10468587  

Farhang Moraghebi Sayyedeh Mahdokht Maddah

Trees can improve air quality, but at the same time, pollution might put them at risk. Plane(Platanus orientalis L) and willow trees (Salix babylonicaL) are important trees in the green space of Tehran. Plane trees in Tehran have experienced early autumn in recent years due to severe air pollution. The present study, investigated some physiological traits of these trees under study to determine...

2009
Joakim Nivre Marco Kuhlmann Johan Hall

We present an improved training strategy for dependency parsers that use online reordering to handle non-projective trees. The new strategy improves both efficiency and accuracy by reducing the number of swap operations performed on non-projective trees by up to 80%. We present state-ofthe-art results for five languages with the best ever reported results for Czech.

2017
Hamid Reza Taghiyari Davood Efhami Sisi

Agroforestry is a dynamic, ecologically based, natural resource management system that, through the integration of trees in farm and rangeland, diversifies and sustains production for increased social, economic and environmental benefits (Leakey, 1996). Apart from the social and cultural advantages of growing trees, recreational benefits for human being, as well as improvement in wildlife, ther...

Journal: :کنترل بیولوژیک آفات و بیماری های گیاهی 0
مهدی میرزائی کارشناس ارشد بیماری شناسی گیاهی، پردیس ابوریحان، دانشگاه تهران حشمت الله امینیان دانشیار پردیس ابوریحان، دانشگاه تهران علی روستایی دانشیار پردیس ابوریحان، دانشگاه تهران

fire blight is an important worldwide disease of pome fruits that control of which through antibiotics is particularly critical. in this case and in absence of another chemical methods, the biocontrol methods can be considered as the best alternative for control of fire blight. in this study efficacy of 5 isolates of antagonistic bacteria belongs to pseudomonas fluorescens and pantoea agglomera...

Journal: :جنگل و فرآورده های چوب 0
زهرا قربانی دانشجوی کارشناسی ‏ارشد مهندسی جنگل، دانشکدة منابع طبیعی، دانشگاه تهران، کرج، ایران مقداد جورغلامی دانشیار گروه جنگل داری و اقتصاد جنگل، دانشکدة منابع طبیعی، دانشگاه تهران، کرج، ایران

the log damage and value loss were examined by felling and bucking function, species, and damage type, in kheyrud forest in namkhaneh district in the hyrcanian forest of iran. in order to calculate the wood value following tree felling and bucking, 250 trees and 167 logs consisting of beech and hornbeam species were measured. there were five types of damage recorded following the tree felling o...

One of the most important issues in forest biometrics is the use of allometric functions to estimate the tree height by using diameter-height models. Measuring the total height of trees is usually a complex and time-consuming process. In allometric functions, the diameter is measured directly but the height of the tree is an estimate of an allometric model, which will be more accurate if the cr...

Angjelina Belaj Concepción Muñoz-Díez Diego Barranco, Hicran Ercan Octavio Arquero

Olive trees have been traditionally cultivated in dry conditions as it is a crop very well adapted to Mediterranean dry lands. Foliar fertilization is a widespread application method used by olive growers to correct frequent deficient levels of potassium in olive trees under rainfed conditions. Monopotassium Phosphate (MKP) is an economic and easily available fertilizer and a fast source of P a...

Journal: :The Journal of Agriculture of the University of Puerto Rico 1969

Journal: :Symmetry 2022

Characterizing multiloop topologies is an important step towards developing novel methods at high perturbative orders in quantum field theory. In this article, we exploit the Loop-Tree Duality (LTD) formalism to analyse that appear for first time five loops. Explicitly, open loops into connected trees and group them according their topological properties. Then, identify a kernel generator, so-c...

Journal: :نامه انجمن حشره شناسی ایران 0
معصومه شیرود بخشی هادی استوان سیروس آقاجانزاده فرید فرجی

during 2005-2006, a faunistic study was carried out to identify predatory mites associated with citrus trees in the western part of mazandaran, iran. five species, viz. amblyseius herbicolus chant, typhlodromips caspiansis denmark & daneshvar, neoseiulus barkeri (hughes), paraseiulus triporus (chant & yoshida-shaul) and euseius amissibilis meshkov*, belonging to the family phytoseiidae were col...

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