The Efficiency of The Mineral K-Fertilization Combined with Soaking/Spraying by Chitosan Solution to Enhance the Sugar Beet Productivity under Sandy Soil Conditions | ||||
| Journal of Soil Sciences and Agricultural Engineering | ||||
| Article 1, Volume 16, Issue 5, May 2025, Page 77-83 PDF (701.07 K) | ||||
| Document Type: Original Article | ||||
| DOI: 10.21608/jssae.2025.375880.1279 | ||||
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| Authors | ||||
Nashwa M. El-Sheikh; M. I. Mohaseb; Marwa A. Ahmed; Rama T. Rashad 
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| Soils, Water and Environment Research Institute (SWERI), Agricultural Research Center (ARC), P.O. Box: 175 Orman, Area Code: 12112, Giza, Egypt | ||||
| Abstract | ||||
| Expanding the sugar beet (Beta vulgaris L.) production in sandy soils, as reclaimed soils, is highly recommended. This study aims to evaluate the single and combined effects of soaking and/or spraying with chitosan solution, with the application of mineral K-fertilization on the availability, uptake of the N-P-K nutrients, and the yield of sugar beet cultivated in sandy soil. Two field experiments were carried out in a split-plot design with three replicates. The main factor (F1) was the mineral potassium (K) fertilization applied at the rates of 50%, 75%, and 100% of the recommended dose (RD). The sub-factor (F2) was the chitosan soak and/or spray treatments. The results indicated that increasing the applied K2O rate from 50% to 100% RD has increased the range of the soil available (mg kg-1) N-P-K by 54.5-106.7%, 60.6-140.1%, and 15.5-101.9%, respectively, relative to the initial soil before the experiment. The sugar beet yield (Mg ha-1) was increased significantly by 18.1% at a significance level p ≤ 0.05. The combined application of 75% K2O with soaking seeds has increased the nutrient availability by 26.2% (N), 41.6% (P), and 62.5% (K), relative to the zero-chitosan treatment. The 75% K-fertilization rate combined with repeated spray by the chitosan solution can be recommended to improve the sugar beet yield and quality.Chitosan can be included in the fertilization programs by soaking/sprayingthe fertilizer solutionunder sandy soil conditions. | ||||
| Keywords | ||||
| Bio-fertilizers; Spray Application; Priming Seeds; Reclaimed Soil | ||||
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