quality improvement of new guinea impatiens by slow releasec fertilizer and humic acid application in medium culture

نویسندگان

لیلا محمدی

دانش آموخته کارشناسی ارشد، گروه علوم باغبانی، دانشکده کشاورزی، دانشگاه شهرکرد، شهرکرد - ایران سعید ریزی

استادیار، گروه علوم باغبانی، دانشکده کشاورزی، دانشگاه شهرکرد، شهرکرد - ایران عبدالرحمان محمدخانی

دانشیار، گروه علوم باغبانی، دانشکده کشاورزی، دانشگاه شهرکرد، شهرکرد - ایران رحیم برزگر

استادیار، گروه علوم باغبانی، دانشکده کشاورزی، دانشگاه شهرکرد، شهرکرد - ایران

چکیده

to evaluate the effect of slow release fertilizer and humic acid on quality of new guinea impatiens (impatiens hawkeri), an experiment established in complete random design with 15 treatments and three replications. treatments were slow release fertilizer (12-11-18-2.7mgo-8s) in five levels (0, 1.5, 3, 4.5 and 6 kg/m3) and humic acid in three levels (0, 2 and 4 kg/m3) that mixed with medium culture. the substrate medium was included 50 percecnt of peat moss, 40 percent of perlite and 10 percent of rice husk (v/v). five months after seeding, results showed the most flower number (20 number) in 6 kg/m3 mixed with 2 kg/m3 of humic acid, and the most leaf number (122 number) in 3 kg/m3 of slow release fertilizer treatments. the slow release fertilizer treatment showed a positive significant effect in all traits. also, humic acid had a positive significant effect on plant height, leaf and shoot number, leaf area, total chlorophyll, shoot fresh weight, flower diameter, flower life and flower number. considering that, humic acid in 2-4 kg/m3 and slow release fertilizer in 3-4.5 kg/m3 could be recommended for new guinea impatiens cultivation.

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عنوان ژورنال:
به زراعی کشاورزی

جلد ۱۸، شماره ۳، صفحات ۷۱۳-۷۲۶

کلمات کلیدی
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