The effect of azotobacter chrococcum as nitrogen biofertilizer on the growth and yield of cucumis sativus

العناوين الأخرى

فحص تأثير azotobacter chroococcum كسماد حيوي على نبات الخيار

مقدم أطروحة جامعية

al-Salihiyah, Basil M.

مشرف أطروحة جامعية

al-Bashiti, Tariq Abd al-Qadir
al-Kichawi, Abbud

الجامعة

الجامعة الإسلامية

الكلية

كلية العلوم

القسم الأكاديمي

قسم العلوم الحياتية

دولة الجامعة

فلسطين (قطاع غزة)

الدرجة العلمية

ماجستير

تاريخ الدرجة العلمية

2010

الملخص الإنجليزي

Bio fertilizer has been identified as an alternative to chemical fertilizer to increase soil fertility and crop production in sustainable farming.

The use of bio fertilizer is steadily increased in agriculture and offers an attractive way to replace chemical fertilizers, pesticides, and supplements.

The main objective of this study is to evaluate the effect of Azotobacter chroococcum as nitrogen-bio fertilizer on growth and yield of Cucumis sativa (cucumber) under greenhouse conditions.

The study was done by planting 210 cucumber seeds distributed into seven treatments which were used in our study as follows : control (without treatment), bio fertilizer only, organic fertilizer only, chemical fertilizer only, organic fertilizer + bio fertilizer, 20% chemical fertilizer + bio fertilizer, and bio fertilizer, (two dose).

After 3 months and through cucumber growth criteria, (shoot length, root length, shoot wet and dry weight, root wet and dry weight, number of leaves, number of branches), yield parameters, mineral content (N %) of cucumber were measured.

In the green house experiment, growth parameters of cucumber showed that the productivity of cucumber increased.

Seed inoculation with A.

chroococcum increased yield about 6 %, compared to control.

The increase of bio fertilizer treated plants in dry root weight were 31 %, 18 % in wet root weight, 11 % in dry whole plant weight, 13 % in wet whole plant weight, 14 % in whole plant length, 10 % in number of branches, 27 % in number of leaves over control.

The increase in shoot nitrogen percentage was 15 % in bio fertilizer treated plants, where it was 40 % in bio fertilizer + 20 % chemical over control.

The increase in root nitrogen percentage was 18 % in bio fertilizer treated plants, where it was 22 % in bio fertilizer + 20 % chemical over control.

Our results provided a proof of the efficiency of Azotobacter chroococcum as an important bio fertilizer in yield of Cucumis sativa (cucumber).

التخصصات الرئيسية

النبات

الموضوعات

• الأسمدة

عدد الصفحات

94

قائمة المحتويات

• APA
• MLA
• AMA

لغة النص

الإنجليزية

نوع البيانات

رسائل جامعية

رقم السجل

BIM-300372