پديد آورندگان :
ستوده پريسا دانشگاه ولي عصر (عج) رفسنجان - گروه علوم خاك , اخگر عبدالرضا دانشگاه ولي عصر (عج) رفسنجان - گروه علوم خاك , عباس زاده پيمان دانشگاه ولي عصر (عج) رفسنجان - گروه علوم خاك , رحيمي اصغر دانشگاه ولي عصر (عج) رفسنجان - گروه زراعت
چكيده فارسي :
مديريت حاصل‌خيزي خاك از طريق استفاده از كودهاي آلي و زيستي يكي از اجزاي حياتي كشاورزي پايدار مي‌باشد. ﺪ. ﺑﻪﻣﻨﻈﻮر ﺑﺮرﺳﯽ ﺗﺄﺛﯿﺮ ﮐﺎرﺑﺮد ﺗﻠﻔﯿﻘﯽ ورﻣﯽﮐﻤﭙﻮﺳﺖ و ﺑﺎﮐﺘﺮيﻫﺎي ﻣﺤﺮك رﺷﺪ ﺑﺮ ﺷﺎﺧﺺﻫﺎي رﺷﺪ و ﺟﺬب ﻋﻨﺎﺻﺮ ﻏﺬاﯾﯽ ﮔﯿﺎﻫﭽﻪﻫﺎي ﮐﻨﺠﺪ آزﻣﺎﯾﺸﯽ ﺑﻪﺻﻮرت ﻓﺎﮐﺘﻮرﯾﻞ در ﻗﺎﻟﺐ ﻃﺮح ﮐﺎﻣﻸ ﺗﺼﺎدﻓﯽ ﺑﺎ ﭼﻬﺎر ﺗﮑﺮار ﺑﻪ اﺟﺮا درآﻣﺪ. ﻓﺎﮐﺘﻮرﻫﺎي ﻣﻮرد ﺑﺮرﺳﯽ ﺷﺎﻣﻞ ورﻣﯽﮐﻤﭙﻮﺳﺖ در ﭼﻬﺎر ﺳﻄﺢ )ﺻﻔﺮ )V0(، ﯾﮏ )V1(، دو )V2( و ﭼﻬﺎر )V3( درﺻﺪ( و ﺑﺎﮐﺘﺮيﻫﺎي ﻣﺤﺮك رﺷﺪ در ﭘﻨﺞ ﺳﻄﺢ )ﺑﺪون ﺑﺎﮐﺘﺮي )B0(، ﺗﻠﻘﯿﺢ ﺑﺎ ﺟﺪاﯾﻪاي از ﺑﺎﮐﺘﺮيﻫﺎي ﮔﺮوه ﺳﻮدوﻣﻮﻧﺎس ﻓﻠﻮرﺳﻨﺖ داراي ﺗﻮان ﺣﻞ ﻓﺴﻔﺎتﻫﺎي ﻣﻌﺪﻧﯽ )B1(، ﺗﻠﻘﯿﺢ ﺑﺎ ﺟﺪاﯾﻪﻫﺎي آزوﺳﭙﯿﺮﯾﻠﻮم )B2( و ازﺗﻮﺑﺎﮐﺘﺮ )B2( ﺑﺎ ﺗﻮان ﺗﺜﺒﯿﺖ ﻧﯿﺘﺮوژن، و ﺗﻠﻘﯿﺢ ﻣﺨﻠﻮط ﺳﻪ ﺑﺎﮐﺘﺮي )B4(( ﺑﻮدﻧﺪ. ﻧﺘﺎﯾﺞ ﺣﺎﺻﻞ از اﯾﻦ ﭘﮋوﻫﺶ ﻧﺸﺎن داد ﮐﻪ اﺛﺮات اﺻﻠﯽ ورﻣﯽﮐﻤﭙﻮﺳﺖ و ﺑﺎﮐﺘﺮيﻫﺎي ﻣﺤﺮك رﺷﺪ ﺑﺮ ﺳﻄﺢ ﺑﺮگ، ﻗﻄﺮ ﺳﺎﻗﻪ و ﺷﺎﺧﺺ ﮐﻠﺮوﻓﯿﻞ اﺛﺮ ﻣﻌﻨﯽداري در ﺳﻄﺢ ﯾﮏ درﺻﺪ داﺷﺘﻨﺪ. ﻫﻤﭽﻨﯿﻦ ﮐﺎرﺑﺮد ﺗﻠﻔﯿﻘﯽ ورﻣﯽﮐﻤﭙﻮﺳﺖ و ﺑﺎﮐﺘﺮيﻫﺎي ﻣﺤﺮك رﺷﺪ ﺑﻪﻃﻮرﻣﻌﻨﯽداري )در ﺳﻄﺢ ﯾﮏ درﺻﺪ( ﺑﺎﻋﺚ اﻓﺰاﯾﺶ وزن ﺧﺸﮏ اﻧﺪام ﻫﻮاﯾﯽ، ارﺗﻔﺎع ﺳﺎﻗﻪ، ﺗﻌﺪاد ﺑﺮگ و ﺟﺬب ﻋﻨﺎﺻﺮ ﻧﯿﺘﺮوژن، ﻓﺴﻔﺮ، ﭘﺘﺎﺳﯿﻢ، آﻫﻦ، ﻣﻨﮕﻨﺰ، روي و ﻣﺲ در ﮔﯿﺎﻫﭽﻪ-ﻫﺎي ﮐﻨﺠﺪ ﺷﺪ. ﺑﯿﺸﺘﺮﯾﻦ وزن ﺧﺸﮏ اﻧﺪام ﻫﻮاﯾﯽ، ﺗﻌﺪاد ﺑﺮگ، ﻣﻘﺪار ﻧﯿﺘﺮوژن، آﻫﻦ، ﻣﻨﮕﻨﺰ، ﻣﺲ و روي در ﺗﯿﻤﺎر ﮐﺎرﺑﺮد 4 درﺻﺪ وزﻧﯽ ورﻣﯽﮐﻤﭙﻮﺳﺖ ﺑﻪﻫﻤﺮاه ﺑﺎﮐﺘﺮي آزوﺳﭙﯿﺮﯾﻠﻮم ﺑﻪدﺳﺖ آﻣﺪ. ﺑﻪﻃﻮري ﮐﻪ ﮐﺎرﺑﺮد اﯾﻦ ﺗﯿﻤﺎر وزن ﺧﺸﮏ اﻧﺪام ﻫﻮاﯾﯽ را از 0/148 ﺑﻪ 3/49 ﮔﺮم ﺑﺮ ﮔﻠﺪان و ﻣﻘﺪار ﻧﯿﺘﺮوژن اﻧﺪام ﻫﻮاﯾﯽ را از 1/96 ﺑﻪ 96/8 ﻣﯿﻠﯽﮔﺮم ﺑﺮ ﮔﻠﺪان اﻓﺰاﯾﺶ داد. ﺑﯿﺸﺘﺮﯾﻦ ﺟﺬب ﻓﺴﻔﺮ ﻧﯿﺰ در ﺗﯿﻤﺎر ﮐﺎرﺑﺮد 4 درﺻﺪ وزﻧﯽ ورﻣﯽﮐﻤﭙﻮﺳﺖ ﺑﻪ ﻫﻤﺮاه ﺑﺎﮐﺘﺮي ﺳﻮدوﻣﻮﻧﺎس ﻣﺸﺎﻫﺪه ﮔﺮدﯾﺪ. ﮐﺎرﺑﺮد اﯾﻦ ﺗﯿﻤﺎر ﺟﺬب ﻓﺴﻔﺮ اﻧﺪام ﻫﻮاﯾﯽ را از 0/759 ﺑﻪ 12/8 ﻣﯿﻠﯽﮔﺮم ﺑﺮ ﮔﻠﺪان اﻓﺰاﯾﺶ داد.
چكيده لاتين :
Soil fertility management through use of organic and biological fertilizers is a crucial
component of sustainable agriculture. A greenhouse experiment was carried out to investigate the
effect of vermicompost and plant growth promoting rhizobacteria (PGPR) on the growth and
nutrient uptake of sesame seedlings. This experiment was conducted in factorial based on
completely randomized design with four replications. Experiment factors included four levels of
(zero (V0), 1 (V1), 2 (V2) and 4 percent (V3)) and five bacterial levels (without bacteria (B0),
inoculation with an isolate from fluorescent pseudomonads group, having ability to dissolve
inorganic phosphate (B1), Azospirillum sp. (B2) and Azotobacter sp. (B3) with ability to fix
nitrogen, and a mixture of three bacteria (B4). The results showed that the main effects of
vermicompost and PGPR significantly enhanced the leaf area, stem diameter and chlorophyll index
in comparision to the control. Also, the combined application of vermicompost and PGPR
significantly increased the shoot dry weight, plant height, number of leaves and nitrogen,
phosphorus, iron, manganese, zinc and copper uptake in sesame seedling (P<0.01). The maximum
shoot dry weight, number of leaves and nitrogen, iron, manganese, copper and zinc contents were
obtained in the treatment containing Azospirillium isolate using 4% of vermicompost. This
trearment enhanced the shoot dry weight from 0.148 to 3.49 mg kg-1and the shoot nitrogen content
from 1.96 to 96.8 mg pot-1. The highest phosphorus uptake was observed in the treatment with
application of 4% vermicompost and Pseudomonas isolate. This trearment increased the shoot
phosphorus content from 0.76 to 12.8 mg pot-1.
