INFLlJENCE OF FERTILIZATION ON THE CHEMICAL COMPOSITION OF RICE YIELD AND DRAINAGE WATER CONTAMINATION
EI-Sayed El-Sayed Ahmed Gewaily;
Abstract
The present investigation was carried out in green house during the growing season of 1999 at Rice Research and Training Center-Sakha-Kafer El-Sheikh. This investigation aimed to study the effect ofN-sources and N-levels on rice growth, rice yield and its component, chemical composition of rice and N03 and NH4 concentration in soil and drainage water.
A split plot design with three replications was used in this study. The main plots were sources of nitrogen (urea, ammonium sulfate, ammonium nitrate and diammonium phosphate). Four levels of nitrogen (0,30,60 and 90kg/fed.) occupied the sub plots. Each levels of nitrogen were splitters into two doses, two third were added after 15 day after transplanting and one third after
30day after transplanting.
Plant samples were taken at maximum tillering stage, panicle initiation stage (for detennined N concentration in rice plant) and harvest stage (for detennined chemical composition of rice plant).
Both drainage water and soil samples were taken during
different growth stages of rice plants to determine the concentration ofNH4-N and N03-N ions
Same number (1Ohill) from each pots was harvest for yield
detennination. Yield and its components, chemical composition and other parameters were recorded.
A split plot design with three replications was used in this study. The main plots were sources of nitrogen (urea, ammonium sulfate, ammonium nitrate and diammonium phosphate). Four levels of nitrogen (0,30,60 and 90kg/fed.) occupied the sub plots. Each levels of nitrogen were splitters into two doses, two third were added after 15 day after transplanting and one third after
30day after transplanting.
Plant samples were taken at maximum tillering stage, panicle initiation stage (for detennined N concentration in rice plant) and harvest stage (for detennined chemical composition of rice plant).
Both drainage water and soil samples were taken during
different growth stages of rice plants to determine the concentration ofNH4-N and N03-N ions
Same number (1Ohill) from each pots was harvest for yield
detennination. Yield and its components, chemical composition and other parameters were recorded.
Other data
| Title | INFLlJENCE OF FERTILIZATION ON THE CHEMICAL COMPOSITION OF RICE YIELD AND DRAINAGE WATER CONTAMINATION | Other Titles | تأثير التسميد على التركيب الكيماوى لمحصول الأرز وتلوث ماء الصرف | Authors | EI-Sayed El-Sayed Ahmed Gewaily | Issue Date | 2001 |
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