Abstract

The study was conducted in the farm of Faculty of Agriculture, Demo, Fayoum, Egypt. The soil was of loamy- sand type. During 2006 /2007 and 2007 /2008 season, using a split plot arrangement in randomized complete block design with three replicates, the work was done to determine the effect of adding biofertilizers ( Azotobacter + Azospirillum, free nitrogen fixers and Trichoderma a phosphate solubilizing fungi) in combinations with mineral N fertilizer with either recommended dose (N 1) or half of this dose (N 2) on yield quantity and quality of two canola lines (L 6 and H 2). The results revealed that the two canola lines were significantly different in plant height, number of branches, number of pods and seed yield /plant. L 6 surpassed H 2 line for previous traits, in addition to insignificantly higher values of the other traits; T 10 , T 11 and T 12 showed superiority and high productivity with saving half of the mineral N recommended dose. For interaction; H 2T10 , was the best in all traits except for plant height, protein and oil percentages. H2T4, L 6T6 and L 6T8, for all traits except for seed index and oil percentage. The highest productivity recoded by H2T10 (N 2+Trichoderma +Azotobacter ), H2T11 (N 2 + Azotobacter + Azospirllum ) and L 6T8 (N 2+ Azotobacter ) which outyielded their corresponding control by 39.3, 31.8 and 23.0% a result of using only 50% of the recommended dose of N-fertilizer (N 2). The latter combination was also superior in protein content (26.5%). These three combinations could be recommended as alternative method for canola fertilization, where they had economic and safely advantages.

Highlights

  • Canola (Brassica napus L.) is one of the main reproductive organs and increase its oil crops in many countries especially in Canada, European Union and USA

  • Suitability of growing canola under Egyptian conditions, compared with other oil crops, may be ascribed to its tolerance to harsh growth and grain yield of Canola was performed by Freitas et al (1997)

  • The study aimed to answer the question; to what extent the yield quantity and quality of the canola lines affected by combination between mineral and biofertilizers under the conditions of newly reclaimed soil?

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Summary

Introduction

Canola (Brassica napus L.) is one of the main reproductive organs and increase its oil crops in many countries especially in Canada, European Union and USA. To overcome some of the local deficit of vegetable edible oil production, it could be successfully grown during winter season in newly reclaimed land outside the old. Not much experimental work has been conducted on the use of such N2-fixing and phosphate solubilizing microorganisms bacteria on the growth and yield of Canola. The only one of Nile valley to get-arround the competition with other crops occupied the old attempt made on canola refer to the application of inoculation with Penicillum bilaji, Bacillus cultivated area. Suitability of growing canola under Egyptian conditions, compared with other oil crops, may be ascribed to its tolerance to harsh growth and grain yield of Canola was performed by Freitas et al (1997). Significant and positive effect on plant height and yield of environmental influences frequently prevailing in such newly reclaimed soil such as salinity

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