پديد آورنده :
اميري، فاطمه
عنوان :
بررسي اثرات خاكپوش چوب هاي نارون و زبان گنجشك بر تعدادي از شاخص هاي رشد و نمو گياهان آهار و شاه پسند و خصوصيات خاك
مقطع تحصيلي :
كارشناسي ارشد
محل تحصيل :
اصفهان: دانشگاه صنعتي اصفهان، دانشكده كشاورزي
صفحه شمار :
چهارده،106ص.: مصور،جدول،نمودار
يادداشت :
ص.ع.به فارسي و انگليسي
استاد راهنما :
حسين شريعتمداري
استاد مشاور :
نعمت اله اعتمادي
توصيفگر ها :
مديريت ضايعات , بازيافت , راندمان آبياري
تاريخ نمايه سازي :
17/12/89
استاد داور :
مژگان سپهري، علي نيكبخت
چكيده فارسي :
به فارسي و انگليسي: قابل رويت در نسخه ديجيتالي
چكيده انگليسي :
Effects of Elm Ulmus carpinifolia sp and Ash Fraxinus excelsior sp Wood Mulches on Selected Growth Parameters of Zinnia Zinnia elegans and Verbena Verbena hubrida sp and Soil Properties Fatemeh Amiri fatemeamiri82@gmail com Date of Submission October 24 2010 Department of Soil Science Isfahan University of Technology Isfahan 84156 83111 IranDegree M Sc Language FarsiH Shariatmadari Prof Supervisor shariat@cc iut ac irAbstractCover crops and organic mulches are reducing soil inputs and increasing the quality of soils Usingmulches as a thin and separate cover for the soil surface can cause soil water and plant protectionand reduce environmental pollutions Many studies have been carried out on the effects of organicmulches on soil physical chemical and biological properties however there are only few researcheson this subject in Iran The objectives of this work were to study the effects of two woody mulcheson soil physical and chemical properties and to determine the yields of two plants Zinnia elegansand Verbena hurida under different mulch treatments A pot experiment was conducted in acompletely randomized design with a factorial combination and three replications The treatmentswere consisted of two types of plants Zinnia elegans and Verbena hubrida two types of mulches Fraxenius excelsior and Ulmus carpinifilia with two thicknesses 3 and 6 centimeter and acontrol During the plant growth period some morphological characters such as the shoot height stem diameter and number of flowers were recorded At the end of growth period the dry weight ofshoots and roots was also measured Plant irrigation was scheduled at 25 of available waterconsumption with distilled water using a Time Domain Reflect meter TDR Results showed that the organic mulches decreased the water consumption significantly whereas pH EC calciumcarbonate soluble sodium and soil bulk density decreased in mulch treatments Organic mattercontent total nitrogen soluble phosphates available potassium soluble calcium and cationexchange capacity increased in the mulch treatments The mulch treatments also caused higher plantbiomass and higher nutrient uptake over the control The increase was more significant in 6 cm than3 cm mulch thickness The increase in shoot biomass over the control were 18 in Zinnia elegansand 52 in Verbena hubrida The increase in root biomass were 13 and 64 for Zinniaelegans and Verbena hubrida respectively in 6 centimeter mulch thickness The elemental analysesof the mulches at the beginning and at the end of the experiment showed that the soluble calcium sodium sulfate and the total copper content of the mulches decreased by the end of the season whereas the soluble phosphorus organic carbon available potassium manganese zinc andmagnesium decrased These changes were all statistically significant In conclusion the organicmulches increased the plant yield and improved the soil physical and chemical properties while thechanges were sharper at 6 cm of the mulch thickness Keywords soil coverage waste management recycling wood mulches water use efficiency
استاد راهنما :
حسين شريعتمداري
استاد مشاور :
نعمت اله اعتمادي
استاد داور :
مژگان سپهري، علي نيكبخت
