نتایج جستجو برای: olive trees yield

تعداد نتایج: 293786  

Journal: :Nature 1911

2017
Yann H. Chemin Pieter S.A. Beck

Olive trees have been of economic and cultural value since pre-Roman times, and continue 1 to dominate landscapes and agriculture in many mediterranean regions. Recent mass losses of olive 2 trees in Southern Italy due to an exotic plant pathogen highlight the need for methods that to monitor 3 the olive trees in a landscape or region operationally. Here, we develop a method for counting olive ...

.  Introduction Old trees are important and key elements of forest sites and are of great value in terms of forest management, reforestation, silviculture and ecology. Although old trees constitute a small percentage of forest trees, they account for a large share of forest carbon reserve and play a vital role in carbon storage. Understanding the how geographical and site distribution of thes...

2003
P. Ramos

A 28-year study (1970-1997) of olive trees grown in Granada (southern Spain) has revealed the levels of attack by the olive moth (Prays oleae Bern.), as well as the beneficial action of oophagous predators (Chrysopidae). On the basis of the results, the damage caused by the moth has been divided into three categories, and the yield and economic losses have been evaluated. When the final attack ...

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...

2003
F. Ruano

Differences in pest management of olive orchards may affect the development of olive trees and may be reflected in terms of absolute and relative asymmetry, mass, and quality of the leaves. Leaf mass and residual leaf mass of olive trees were significantly greater under organic management than other pest management regimes. The analysis revealed that leaves from trees under different pest manag...

Journal: :مدیریت خاک و تولید پایدار 0
امید نوری عضو هیات علمی مهدی طاهری عضو هیات علمی/مرکز تحقیقات کشاورزی و منابع طبیعی زنجان محمد تکاسی عضو هیات علمی/مرکز تحقیقات کشاورزی و منابع طبیعی زنجان احمد قلی یان کارشناس سابق باغ نگین سبز، طارم، زنجان

there are many problems in yield, quality and and persistence regular bearing in olive trees, one of these problems is nutritional imbalances. this study carried out in order to evaluate nutritional status of olive orchards in tarom region of zanjan province. samples of soil and leaf were taken from 79 olive orchards in june 2012 and 2013 and were analyzed by using appropriate laboratory method...

2016
Concepción M. Díez Juan Moral Diego Cabello Pablo Morello Luis Rallo Diego Barranco

Super high-density (SHD) olive orchards are rapidly expanding since the first plantation was set up in Spain in the 1990s. Because there are no long-term studies characterizing these systems, it is unknown if densities above a certain threshold could trigger competition among fully-grown trees, compromising their development. Over 14 years we have evaluated the performance of the major olive cu...

Journal: :پژوهش های تولید گیاهی 0
مهرشاد زین العابدینی پزوهشکده بیوتکنولوژی کشاورزی ایران محسن مردی دانشیار پژوهشکده بیوتکنولوژی کشاورزی ایران علی اصغر زینالو سید حسین جمالی پیام پتکی مجتبی خیام نکوئی عبدالرضا کاوند

background and objectives: oleaceae family contains approximately 20 species of small trees and ancient world of the mediterranean, north africa, southeast asia, north to southern china, scotland and east australia have a wide dispersion. they are evergreen and have small leaves that are integrated have been met and the fruit is drup. olive trees resistant to drought and adapt to poor soils and...

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