Effects of Soil Fertilization on Sakha 105 Rice Cultivar Productivity, NPK Uptake and Soil Nutrient | ||
| Journal of Soil Sciences and Agricultural Engineering | ||
| Article 1, Volume 9, Issue 7, July 2018, Pages 253-259 PDF (318.06 K) | ||
| Document Type: Original Article | ||
| DOI: 10.21608/jssae.2018.35762 | ||
| Authors | ||
| E. Gewaily; A. Ghoneim; Howida Elhabet | ||
| Rice Research and Training Center, Field Crops Research Institute, Agricultural Research Center, Giza, Egypt | ||
| Abstract | ||
| Balanced supply of essential nutrient is one of the most important factor for increasing rice yield. Hence, knowledge of interaction of N with other nutrients are very important for improving fertilizer use efficiency and consequently increasing rice yield. A Field experiment was carried out at Rice Research and Training Center experimental farm during 2016 and 2017 seasons to assess the influence of different combinations of N, P, K and Zn fertilizer on yield of Sakha105 rice variety, its attributes, NPK uptake, N-recovery efficiency and agronomic nitrogen use efficiency. The fertilizer combinations were: (1) control, (2) N, (3) N + P, (4) N + K, (5) N + Zn, (6) N + P + Zn, (7) N +K + Zn, (8) N + P + K, and (9) N + P + K + Zn. Yield and yield attributes of Sakha 105 rice cultivar were significantly affected by different combinations of N, P, K and Zn fertilizer. The NPKZn treatment resulted in the highest grain yield, number of panicles hill-1, number of filled grain panicle-1 andlowest sterility percentage compared with the control. In addition, the uptake of N, P and K varied significantly by the application of different combinations of N, P, K and Zn fertilizer in both growing seasons. Nitrogen recovery efficiency % varied significantly with different fertilizers and ranged from 24.01 to 41.39% and from 26.08 to 43.99% in 2016 and 2017, respectively. The application of different chemical fertilizers significantly increased the available soil NH4+ content and available soil P concentration at different days after transplanting compared with the control. The study suggests that balance nutrient application using N, P, K and Zn fertilizers is a key management strategy for sustaining soil fertility and therefore increasing rice yield. | ||
| Keywords | ||
| Chemical fertilizer; rice growth; yield; nutrient uptake; Soil | ||
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