نتایج جستجو برای: perlit and soil

تعداد نتایج: 16864146  

2005

Introduction ............................................................................................................................................................1 Rainfall and Runoff Characteristics for Urban Areas .............................................................................................2 Small Storm Hydrology.............................................................

Our study was to develop a rapid and successful method for promoting asymbiotic seed germination and growth and development of protocorm like bodies (PLBs) and subsequent plantlets of Phalaenopsis orchid. Four basal media i.e. Murashige and Skoog (MS), half strength MS (½MS), Knudson C (KC) and, Vacin and Went (VW) supplemented with coconut water and peptone were examined for their effectivenes...

2008
Jennifer C. Anhalt Thomas B. Moorman William C. Koskinen JENNIFER C. ANHALT THOMAS B. MOORMAN WILLIAM C. KOSKINEN

Degradation and sorption of imidacloprid in dissimilar surface and subsurface soils Jennifer C. Anhalt a , Thomas B. Moorman b & William C. Koskinen c a Department of Microbiology , Iowa State University , Ames, Iowa, USA b United States Department of Agriculture , Agricultural Research Service, National Soil Tilth Laboratory , Ames, Iowa, USA c United States Department of Agriculture , Agricul...

2016
Ethan Hack

Abstract—Soil samples were collected from and around Alkomos cement factory, Alkomos town, Libya. Soil physiochemical properties were determined. In addition, olive leaves were scanned for their fungal content. This work can conclude that the results obtained for the examined physiochemical characteristics of soil in the area studied prove that cement dust from the Alkomos cement factory in Lib...

Journal: :مرتع و آبخیزداری 0
مقداد جورغلامی دانشکده منابع طبیعی دانشگاه تهران، دکترای جنگلداری وحید ریزوندی دانشکده منابع طبیعی دانشگاه تهران، کارشناسی ارشد جنگلداری باریس مجنونیان قراقز دانشکده منابع طبیعی دانشگاه تهران، دکترای جنگلداری

assessment and management of the environmental impacts of forest harvesting operations have become increasingly critical factors in practicing commercial forestry. this study investigated soil disturbance from a forest logging system operation on an 8-hectare mixed broadleaved stand in compartment no. 309 in gorazbon district in kheyrud educational and research forest. the objective of this stu...

Journal: : 2021

Bu çalışma, farklı dozlardaki melatonin (MEL) uygulamalarının (0, 5, 10 µM) kireçli ortamda yetiştirilen çilek fidelerinin yaprak, gövde ve köklerindeki bazı mineral element içerikleri üzerine etkilerini belirlemeyi amaçlamıştır. Deneme “Albion” çeşidine ait frigo fideler ile 1:1 oranında torf perlit %1 kireç ilave edilmiş karışımla doldurulan saksılarda yürütülmüştür. Farklı gelişim aşamaların...

Journal: :تحقیقات آب و خاک ایران 0
مژده لاهوری پردیس کشاورزی و منابع طبیعی دانشگاه تهران محمود بابالار دانشکده کشاورزی و منابع طبیعی دانشگاه تهران علی رئیسی استبرق university of tehran صادق رنجبری پردیس کشاورزی و منابع طبیعی دانشگاه تهران

in this research the effect of randomly reinforced soil and soil cement with different percent of cement and fiber and different length of fiber was investigated. samples were prepared according to the maximum dry unit weight and optimum water content due to the corresponding compaction curves. compressive and tensile strength were conducted on samples for different curing times. regression equ...

Journal: : 2021

Bu çal??mada odun plastik kompozit üretiminde, perlit kullan?m?n?n etkisi ara?t?r?lacakt?r. amaçla unu, polipropilen ve farkl? oranlarda kar???m? elde edilmi?tir. Odun-plastik (OPK) malzemelerin üretimi do?rudan pres yöntemi kullan?larak gerçekle?tirilmi?tir. Üretilen OPK malzemelere ait test numunelerinin fiziksel, mekanik yüzey özellikleri belirlenmi?tir. ?lgili standartlara ba?l? kal?narak l...

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