نتایج جستجو برای: mowing quality

تعداد نتایج: 753712  

Journal: :پژوهش های تولید گیاهی 0
ریحانه عسگرپور - رضا قربانی عضو هیات علمی دانشگاه فردوسی مشهد نرگس پورطوسی سازمان پارکها و فضای سبز شهد علیه گنجی - فرنوش فلاح پور -

background and objectivescommon privet (ligustrum vulgare) is one of the most important plants in landscapes of iran. this plant is adaptable to unfavorable environmental conditions, so that is cultivated widespread in urban landscape. invasion of dodder to common privet caused problems for landscape management in mashhad city in recent years. dodder is an obligate parasite of many plant famili...

Journal: :Grassland Science 2021

Forage dry matter (DM) yield and its nutrient content are important in livestock nutrition; however, they have distinct, even opposite responses to mowing regimes. To optimize forage resources, two independent field experiments were conducted determine effects of initial time (15-day intervals from May 15 September 1) frequency (one five times per year) on DM nutritive value Leymus chinensis (T...

پایان نامه :دانشگاه آزاد اسلامی - دانشگاه آزاد اسلامی واحد تهران مرکزی - دانشکده زبانهای خارجی 1391

since its introduction in 1959, translation quality assessment (tqa) has been among the most addressed research topics in translation studies. during recent years, there has been a crucial increase on the study of tqa. various methods have come on scene. although these methods are based on scientific theories, most of them have remained at the level of theory. juliane house’s model is among tho...

Journal: :Land 2022

In spring, grazing equids may suffer from a severe rhabdomyolysis syndrome named atypical myopathy. This environmental intoxication results ingestion of toxins contained in Acer pseudoplatanus seedlings. The aim this study was to investigate the effectiveness herbicide spraying and mowing reduce toxic pressure sycamore first experiment, efficacy three herbicides eradicate seedlings compared mow...

2015
Zedong Lu Rui Du Pengrui Du Saisai Qin Zongmin Liang Ziming Li Yaling Wang Yanfen Wang Shiping Wang

Nitrous oxide emissions during freeze/thaw periods contribute significantly to annual soil N2O emissions budgets in middle- and high-latitude areas; however, the freeze/thaw-related N2O emissions from waterlogged soils have hardly been studied in the Hulunber Grassland, Inner Mongolia. For this study, the effects of changes in land use/cover types on N2O emissions during freeze-thaw cycles were...

2018
Verena Busch Valentin H Klaus Caterina Penone Deborah Schäfer Steffen Boch Daniel Prati Jörg Müller Stephanie A Socher Ülo Niinemets Josep Peñuelas Norbert Hölzel Markus Fischer Till Kleinebecker

Plant functional traits reflect individual and community ecological strategies. They allow the detection of directional changes in community dynamics and ecosystemic processes, being an additional tool to assess biodiversity than species richness. Analysis of functional patterns in plant communities provides mechanistic insight into biodiversity alterations due to anthropogenic activity. Althou...

Journal: :Proceedings of the New Zealand Grassland Association 1999

Journal: :Annals of botany 2012
Jean-Paul Maalouf Yoann Le Bagousse-Pinguet Lilian Marchand Blaise Touzard Richard Michalet

BACKGROUND AND AIMS There is still debate regarding the direction and strength of plant interactions under intermediate to high levels of stress. Furthermore, little is known on how disturbance may interact with physical stress in unproductive environments, although recent theory and models have shown that this interplay may induce a collapse of plant interactions and diversity. The few studies...

2017
Patric J. Darvie David H. Ballard Nicholas Harris Peeyush Bhargava Vyas R. Rao Navdeep S. Samra

We present the case of a 72-year-old man with hemoptysis after a thoracic projectile injury, which occurred while mowing the lawn. Chest radiograph followed by a computed tomography angiogram revealed a metallic foreign body in the right middle lobe of the lung. The patient underwent a right anterolateral thoracotomy where the object was successfully retrieved. The patient had an uneventful pos...

2006

Questions: Are calorimeters and pyrometers accurate and reliable for describing fire parameters in large-scale ecological projects, and can data from them predict data derived from thermocouples? Do mechanical pre-treatments in Florida scrub areas alter fire properties? Location: Lake Wales Ridge, Florida, USA. Methods: We deployed thermocouples attached to digital dataloggers, copper and lacqu...

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