PHOSPHOROUS FERTILIZATION REQUIREMENT FOR RICE UNDER CLAYED ALKALINE SOILS. | ||
| Journal of Plant Production | ||
| Article 7, Volume 7, Issue 2, February 2016, Pages 161-168 PDF (537.77 K) | ||
| Document Type: Original Article | ||
| DOI: 10.21608/jpp.2016.45249 | ||
| Authors | ||
| E. S. Naeem; T. F. Metwally; I. M. Hashem; T. M. AbdEl-Mgeed | ||
| Rice Research & Training Center, Field Crops Research Institute, Agricultural Research Center, 33717 Sakha - Kafrelsheikh, Egypt. | ||
| Abstract | ||
| Phosphorus is a macronutrient that plays number of important roles in plants. It is a component of nucleic acids, so it plays a vital role in plant reproduction, of which grain production in an important result. Intensive cropping system, high phosphorus consumer crops, high yielding rice varieties and high soil pH restricted P availability resulted in low rice yield. The experiment was carried out at farm of Sakha Agriculture Research Station, Kafrelsheikh during 2014 and 2015 summer seasons, in clayed alkaline soil, the study aimed to find out the effect of different levels of phosphorus fertilizer on yield and yield attributes of rice in low soil phosphorus. The treatments consist of four cultivars; Egyptian hybrid rice one (EHR1), Sakha102, Sakha106 and Giza179 and five phosphorus (P) fertilizer levels Viz. 0, 12, 24, 36 and 48 kg P2O5. ha-1 as single super phosphate (15.5 % P2O5). Split plot experiment design with four replications was used. At heading some growth parameters were measured yield and yield attributes were estimated. Nitrogen and phosphorus uptake were determined. The studied varieties were certainly differed regarding their yield and yield attributes as well as nitrogen and phosphorus uptake. The Egyptian hybrid rice one (EHR1) apparently surpassed others studied varieties in growth, grain yield and most of yield components characteristics. All the studied parameters of rice varieties differed significantly with the application of phosphorus fertilizer. Plants grown without added phosphorus gave the lowest grain yield. The higher phosphorus levels exhibited higher grain yield. A significant interaction between varieties and phosphorus levels in respect of yield and yield attributes of rice were observed. The highest grain yield was recorded with Egyptian hybrid rice one at 48 kg P2O5. ha-1. It could be concluded that high yielding rice varieties, EHR1 and Giza 179 responded to phosphorus fertilizer up to 48 kg P2O5/ha-1. Furthermore, the medium yielding varieties; Sakha102 and Sakha106 performed better with P level of 36 kg P2O5/ha-1. The application of phosphorus for rice after heavy phosphorus consumer crop and high pH soil is imperative to fetch high rice grain yield. | ||
| Keywords | ||
| Rice crop; phosphorus fertilizer; Grain yield; alkaline soil | ||
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