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Effect of mineral nitrogenous fertilization and compost tea on insect infestation of sugar beet and yield characteristics [electronic resource].

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Shalaby, G. A

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Language: English Summary language: Arabic Description: P.825-834Other title:

تأثير استخدام الاسمدة الأزوتية المعدنية وشاي الكمبوست على الإصابات الحشرية فى بنجر السكر وخواص المحصول [Added title page title]

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Mansoura University journal of plant protection and pathology, 2012 v. 3 (8) [electronic resource].

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In: Mansoura University Journal of Plant Protection and Pathology 2012.v.3(8)Summary: Field experiments were carried out at the experimental farm of Sakha Agricultural Research Station during 2009/10 and 2010/11 seasons. Three levels of mineral nitrogenous fertilizers and/or different treatments of compost tea were evaluated as affecting on insect infestation in sugar beet, as well as fertilizer effect on yield and yield characteristics. Infestation by Pegomia mixta ViII, Scrobipalpa ocellatella Boyd and Cassida villata Vill were significantly highest at 90 kg N/fed as compared with lower doses (60 or 75 kg N/fed). Compost tea treatments induced lower infestation by the aforementioned insects as compared with the check (control). Compost tea used as soil drench (30 L/fed.), applied 40 days after SOWing, followed by fOliar application of compost tea at 60,90 and 120 DAS (20 L/fed) proved to be the best treatment against insect infestations. The combination of the latter treatment with the application of 60 kg N/fed resulted in the lowest infestation of sugar beet insects.

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Field experiments were carried out at the experimental farm of Sakha Agricultural Research Station during 2009/10 and 2010/11 seasons. Three levels of mineral nitrogenous fertilizers and/or different treatments of compost tea were evaluated as affecting on insect infestation in sugar beet, as well as fertilizer effect on yield and yield characteristics. Infestation by Pegomia mixta ViII, Scrobipalpa ocellatella Boyd and Cassida villata Vill were significantly highest at 90 kg N/fed as compared with lower doses (60 or 75 kg N/fed). Compost tea treatments induced lower infestation by the aforementioned insects as compared with the check (control). Compost tea used as soil drench (30 L/fed.), applied 40 days after SOWing, followed by fOliar application of compost tea at 60,90 and 120 DAS (20 L/fed) proved to be the best treatment against insect infestations. The combination of the latter treatment with the application of 60 kg N/fed resulted in the lowest infestation of sugar beet insects.

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