3785

3576

كارشناسي ارشد

خاكشناسي

اصفهان : دانشگاه صنعتي اصفهان، دانشكده كشاورزي

1386

شانزده، 111، [II] ص.: جدول، نمودار

ص.ع. به فارسي و انگليسي

حسين شريعتمداري ، احمد جلاليان

محمود كلباسي، حسين خادمي

4/10/86

شمس الله ايوبي، بهرام باني شب

مهندسي كشاورزي

ID3576

به فارسي و انگليسي :قابل رؤيت در نسخه ديجيتال

Abstract It is believed that more than 80 90 percents of the problems associated with management of the urban landscape trees are related to the rooting media of these plants In these media due to different limitations associated with the soil quality as well as the limited soil depth and volume the root growth could not occur as much required for the normal growth of the aerial parts of the trees Using unsuitable debris in the past as bedding materials in Isfahan urban landscape causes different physical and nutritional problems for the growing trees Since these trees have been already grown for many years it is not possible to replace the bedding material to improve the root bed condition however finding some more feasible alternatives is essential In this work the effects of hole mulching using different enriched organic amendments on alleviation of soil limitations for some Isfahan urban landscape trees were examined The hole mulching were performed in 5 regions using a randomized complete block design with three replicates The mulching materials were 1 caw manure compost 2 caw manure vermicompost 3 urban waste compost 4 urban waste vermicompost 5 the dug hole refilled with the soil came out of the same hole and 6 blank with no hole digging The results showed that although in short term the hole mulching may show some negative effects on nutrient uptake and plant root growth which is probably due to the injures caused by the hole digging but after two years all hole mulching treatments improved the growth and nutritional condition of the elm and acacia trees although in the plane trees almost no positive response observed The caw manure compost and vermicompost treatments resulted in a greater increase in the nutrient concentrations of leaves and the annual branches growth over the other treatments In this regard the urban compost and vermin compost were in the next orders Also in the hole filled with the mulching materials the root growth and the water infiltration rate were considerably higher than the adjacent soil showing that the hole mulching treatments improve the plant root bed physical and chemical conditions PDF created with pdfFactory Pro trial version www pdffactory com

حسين شريعتمداري ، احمد جلاليان

محمود كلباسي، حسين خادمي

شمس الله ايوبي، بهرام باني شب