Attia, A., Said, E., Ghonima, M., Ibrahim, M. (2007). IMPACT OF NITROGEN LEVELS ON GROWTH AND YIELD OF SUGAR BEET INTERCROPPED WITH FABA BEAN AND WHEAT. Journal of Plant Production, 32(2), 779-792. doi: 10.21608/jpp.2007.204847
A. N. E. Attia; E. M. Said; M. H. Ghonima; M. E. M. Ibrahim. "IMPACT OF NITROGEN LEVELS ON GROWTH AND YIELD OF SUGAR BEET INTERCROPPED WITH FABA BEAN AND WHEAT". Journal of Plant Production, 32, 2, 2007, 779-792. doi: 10.21608/jpp.2007.204847
Attia, A., Said, E., Ghonima, M., Ibrahim, M. (2007). 'IMPACT OF NITROGEN LEVELS ON GROWTH AND YIELD OF SUGAR BEET INTERCROPPED WITH FABA BEAN AND WHEAT', Journal of Plant Production, 32(2), pp. 779-792. doi: 10.21608/jpp.2007.204847
Attia, A., Said, E., Ghonima, M., Ibrahim, M. IMPACT OF NITROGEN LEVELS ON GROWTH AND YIELD OF SUGAR BEET INTERCROPPED WITH FABA BEAN AND WHEAT. Journal of Plant Production, 2007; 32(2): 779-792. doi: 10.21608/jpp.2007.204847
IMPACT OF NITROGEN LEVELS ON GROWTH AND YIELD OF SUGAR BEET INTERCROPPED WITH FABA BEAN AND WHEAT
Department of Agronomy, Faculty of Agriculture, Mansoura University
Abstract
Two field experiments were conducted at Mansoura district (EL-Baqulia village) Dakahlia governorate, during 2003/2004 and 2004/2005. seasons, to study the impact of nitrogen levels i.e 40, 60 and 80kg N/fad. on growth and yield of sugar beet cv. "Sultan" intercropped with faba bean cv. "Giza 2" and wheat cv. "Sakha 93". A split plot design with four replications was used . The important results could be summarized as follows: 1- Sugar beet:
It was evident that intercropping systems with sugar beet significantly reduced all studied characters of sugar beet except sucrose and purity percentages. The highest values of root fresh weight/plant, root length and diameter, TSS% and top, root and sugar yields/fad were obtained from sugar beet in pure stand, meanwhile maximum values of sucrose and purity percentages resulted from cropping 3 rows of faba bean with sugar beet in both seasons.
Increasing nitrogen level up to 80 kgN/fad significantly increased all sugar beet characters except sucrose and purity percentages which recorded the highest values with 40kg N/fad in the two seasons
The interaction between the two studied factors had a significant affect on top yield/fad in both seasons, root length in the first season as well as root fresh weight/plant and TSS% in the second season only. 2- Faba bean:
From the obtained data, all faba bean studied characters were significantly affected by intercropping systems in both seasons. 100-seed weight, seeds weight/plant and Seed and straw yields/fad gave the highest values from pure stand, whereas number of branches and pods/plant, attained maximum values under cropping 2 rows of faba bean with sugar beet. On the other hand, plant height recorded the tallest plants under cropping 3 rows of faba bean system in both seasons.
All studied characters were significantly affected by nitrogen levels in both seasons. All studied characters recorded the highest values with 40kg N/fad except plant height and straw yield/fad which resulted from 80kg N/fad.
Number of pods/plant and 100- seed weight were significantly affected only in the 2nd season by the interaction between the two studied factors. 3- wheat:
Intercropping systems had a significant effect on all wheat studied characters in both seasons. Which number of tillers and spikes/m2, grains weight/spike,1000- grain weight and grain and straw yields/fad recorded the highest values with planting wheat in pure stand, while number of grains/spike gave the maximum values with cropping 2 rows of wheat with sugar beet, whereas the tallest plants resulted from cropping 3 rows of wheat with sugar beet system.
Concerning nitrogen levels the results revealed that increasing nitrogen levels from 40 up to 80kg N/fad. significantly increased all studied characters in both seasons.
Interaction between the two studied factors had a significant effect on grain yield/fad in both seasons and number of tillers/m2 in the first season as well as 1000- grain weight and straw yield in the second season.
The highest values of LER and gross return were observed when cropping 3 rows of wheat with sugar beet and fertilized with 80kg N/fad. This study showed that cropping 3 rows of wheat with sugar beet gave the highest economic return for the farmers.
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