EFFECT OF SOWING DATES AND MINERAL SULPHUR FERTILIZER ON YIELD AND QUALITY OF SUGAR BEET UNDER NEWLY RECLAIMED SOILS | ||||
| Journal of Plant Production | ||||
| Article 5, Volume 2, Issue 9, September 2011, Page 1163-1170 PDF (377.47 K) | ||||
| Document Type: Original Article | ||||
| DOI: 10.21608/jpp.2011.85647 | ||||
 View on SCiNiTO | ||||
| Author | ||||
| A. M. H. Osman* | ||||
| Sugar Crops Res. Inst. Agric. Res. Center Giza, Egypt. | ||||
| Abstract | ||||
| Two field trials were conducted out in 2009/2010 and 2010/2011 seasons at Kom Osheim, El-Fayoum Governorate to study the effect of three sowing dates (1st October; 15th October and 1st November) and soil application of sulphur fertilizer in the form of Calcium poly sulfide CaSO4 (30% sulphur) at the levels of (zero, 125 and 250 kg CaSO4/fed, mixed with soil) which were applied at 45 and 75 days age, on Kawemira variety. A split plot design with four replicates in both seasons was used. The main plots were assigned to sowing dates, whereas, soil application with CaSO4 in the sub plots. The results indicated that: early sowing dates at 1st October significantly increased root diameter, root fresh weight/plant, as well as, root and sugar yields/fed, while, mineral contents SO4% and N% were significantly decreased as compared with the other two sowing dates 15th October and 1st November. While, sown sugar beet at 15th October gave the highest sugar% in both seasons, respectively. Soil application with sulphur (CaSO4) level up to 250 kg CaSO4/fed significantly increased root diameter, root fresh weight/plant, sucrose% andyields/fed (root and sugar), while, minerals content of SO4% and N% were increased as compared with control and sulphur (CaSO4) level with 125 kg CaSO4/fed in both seasons, respectively. The interaction between early sowing date at 1st October and soil application with 250 kg CaSO4/fed significantly increased sucrose%, root and sugar yields/fed in both seasons. | ||||
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