The Effect of Sawdust Vermicompost Extract on Growth of Dracaena marginata
محورهای موضوعی : مجله گیاهان زینتی
Ali Mahboub Khomami
1
(
Soil and Water Research Department, Gilan Agricultural and Natural Resources Research and Education Center, AREEO, Rasht, Iran.
)
کلید واژه: vermicompost, Earthworm, Foliar spraying, Organic waste,
چکیده مقاله :
This study investigated the effects of the sawdust vermicompost extract (aqueous extract) on yield and chemical quality of Dracaena marginata var.‘Tricolor’ grown under four sawdust vermicompost extract solutions (0, 250, 500 and 1000 ppm). The sawdust vermicompost extract was prepared using non-aerated extraction methods with 1:10 (v/v) of sawdust vermicompost to water and was sprayed three times two weeks on the D. marginata plants. Sawdust vermicompost extract improved mineral nutrients of plants such as nitrogen (2.36%), phosphorus (0.42%), potassium (2.31%), calcium (2.76%), and magnesium (0.23%) compared to controls. When the sawdust vermicompost extract was sprayed on the D. marginata plants, it showed a significant growth of plants. The three-time spray of 1000 ppm vermicompost extract also reflected too great influence over the yield of D. marginata. Plants grown in pots sprayed with 1000 ppm vermicompost extract exhibited higher height (15.33 cm), leaf number (53.00), shoot and leaf fresh weight (66.00g), and shoot and leaf dry weight (13.90 g) than control treatments (P < 0.05). This practice should be adopted for obtaining a higher yield from D. marginata. This study confirmed that the sawdust vermicompost extract can positively influence plant yield.
این مطالعه اثر عصاره ورمی کمپوست خاک اره (عصاره آبی) را بر عملکرد و کیفیت شیمیایی دراسنا مارژیناتا رقم سه رنگ مورد بررسی قرار داد، که در طی آن گیاه تحت تاثیر چهار غلظت محلول عصاره ورمی کمپوست خاک اره (0، 250، 500 و 1000 پی پی ام) پرورش داده شد. عصاره ورمی کمپوست خاک اره با استفاده از روش استخراج بدون هوادهی، با نسبت حجمی1:10 از ورمی کمپوست خاک اره با آب تهیه شده و سه بار با فاصله دو هفته ای روی گیاهان دراسنا مارژیناتا اسپری شد. عصاره ورمی کمپوست خاک اره نسبت به شاهد مواد معدنی مانند نیتروژن (36/2%)، فسفر (42/0%)، پتاسیم (31/2%)، کلسیم (76/2%) و منیزیم (23/0%) را در گیاهان بهبود بخشید. اختلاف در عملکرد و کیفیت شیمیایی گیاهان در تیمارها تا حد زیادی از طریق تفاوت در جذب ازت در بافت و تجمع ماده خشک توضیح داده می شود. هنگامی که عصاره ورمی کمپوست خاک اره بر روی گیاهان دارسنا مارژیناتا اسپری شد، رشد قابل توجهی در گیاهان مشاهده شد. سه بار اسپری عصاره ورمی کمپوست با غلظت 1000پی پی ام بیشترین تاثیر را بر عملکرد دراسنا مارژیناتا نشان داد. گیاهان کشت شده در گلدان که با 1000 پی پی ام عصاره استخراج شده از ورمی کمپوست اسپری شده بودند، بیشترین ارتفاع (33/15 سانتی متر)، تعداد برگ (00/53)، وزن تر ساقه (00/66 گرم) و وزن خشک ساقه (90/13 گرم) را نسبت به تیمار شاهد( 05/0 (P < داشتند. بنابراین برای به دست آوردن عملکرد بالاتر دراسنا باید مورد پذیرش قرار گیرد. این مطالعه نشان داده که عصاره ورمی کمپوست خاک اره می تواند تاثیر مثبت بر عملکرد گیاه داشته باشد.
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