Document Details

Document Type : Article In Journal 
Document Title :
Effect of Phosphorus and Split Nitrogen on Corn ( Zea mays L.) Production, Nitrogen and. Phosphorus Accumulation in Western Saudi Arabia
تأثير التسميد الفوسفاتي والأزوتي المجزأ على إنتاجية المادة الجافة وامتصاص عنصري الأزوت والفسفور في الذرة الشامية خلال فصلي الربيع والخريف بالمنطقة الغربية
 
Document Language : English 
Abstract : Field experiments were conducted during the spring and autumn of 1992 to determine the effects of phosphorus and split N application on com total biomass (TOM and TOW) and in its components. viz.. culm (COW), leaves (LOW) and cobs (CBOW) accumulation of N and P. A hybrid cultivar, "Giza 2" was sown under 4 levels of N (100. 150,300 and 400 kg ha- I ) split into four equal doses at 15.30,45 and 60 days from planting (dfp); and 2 levels of P (75 and 150 P20S kg ha") applied at sowing. Estimates of TOM and COW at 30 and 45 dfp (both seasons) and at 60 dfp (spring season) were highest (P ~ 0.0 I) at the N3 level. indicating that split application of 225 kg N ha') in the spring and of 150 kg N ha- 1 in the autumn were adequate for achieving maximum biological and seed yields. Nand P uptake in the leaves, being highest at 30 to 60 dfp, was also significantly increased by the split doses of N3 (i.e. 75. 150 and 225 Kg N ha'), depending on season. at the specified harvesting dates. Positive effects of P2 were limited to those on COW at 30 dfp in the spring season and at 30 and 45 dfp in autumn. Effects of P2 on CBOW and TOW at 90 dfp in the autumn season were also significant but negative. Positive effects of (P ~ 0.05) of P2 on N content were only recorded for leaves at 45 dfp in the autumn; whereas those on P uptake were limited for leaves at 30 and 75 dfp in the spring season. 
ISSN : 1319-1039 
Journal Name : Meteorology, Environment and Arid Land Agriculture Sciences Journal 
Volume : 7 
Issue Number : 1 
Publishing Year : 1416 AH
1996 AD 
Article Type : Article 
Added Date : Saturday, July 28, 2012 

Researchers

Researcher Name (Arabic)Researcher Name (English)Researcher TypeDr GradeEmail
سمير جميل السليمانيAL-SOLAIMANI, SAMIR G.ResearcherDoctorate 

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