| Titles |
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English :
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Effect of Number of Seedlings/Hill and Nitrogen Fertilization on Productivity of Rice (Oryza Sativa L.) Plant
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Arabic :
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تأثير عدد البادرات بالجورة و التسميد النيتروجينى على إنتاجية نبات الأرز(Oryza sativa L.)
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| Abstract |
ABSTRACT
Two field experiments were carried out at the Experimental Farm of Rice Research and Training Center (RRTC), Sakha, Kafr El-Sheikh, Egypt, during two consecutive summer seasons of 2003 and 2004. The study aimed to evaluate the effect of three numbers of seedlings per hill (4, 8 and 12) and four nitrogen levels (0, 96, 144 and 192 kg N/ha) on initial vegetative growth and grain yield and its attributes of Sakha 101 and Sakha 102 rice cultivars in two separated experiments, each included one cultivar. A split plot design, with four replications, was used, keeping the number of seedlings/hill in the main plots and the nitrogen levels in the sub-plots.
The main results indicated that plant height and dry matter accumulation were gradually increased from panicle initiation (PI) to complete heading (CH) stages. However, number of tillers was decreased. At PI stage, increased number of seedlings than four seedlings/hill significantly decreased plant height (of both cultivars) and dry matter accumulation of Sakha 102 rice cultivar, while, the dry matter accumulation was increased for Sakha 101 rice cultivar. At complete heading stage, four and eight seedlings per hill gave the highest values of plant height, number of tillers and dry matter yield of Sakha 101 and Sakha 102 rice cultivars, respectively. The results, also, indicated that four seedlings of Sakha 101 and eight seedlings per hill of Sakha 102 rice cultivars gave the highest values of grain yield and its attributes. Regarding nitrogen levels, both cultivars responded to the higher nitrogen levels. Application of nitrogen fertilizer up to 192 Kg N/ha caused a significant increase for all growth characters at PI and CH stages, as well as grain yield and its attribution. On the other hand, there was no significant difference in grain yield between 144 and 192 kg N/ha for both cultivars.
Key words: Rice, number of seedlings, nitrogen fertilization and productivity.
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| Publication year |
2006
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| Pages |
57-62
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| Availability location |
معهد بحوث المحاصيل الحقلية - مركز البحوث الزراعية - ش الجامعه – الجيزة
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| Availability number |
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| Organization Name |
Field Crops Research Institute (FCRI)
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| serial title |
: Alex. J. Agric. Res. 51 (2) : 57-62, 2006
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| Author(s) from ARC |
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| Agris Categories |
Agricultural research
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| Publication Type |
Journal
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