Response of Sugar Beet to Continuous Deficit Irrigation and Foliar Application of some Micronutrients under Sandy Soil Conditions. | ||||
| Journal of Soil Sciences and Agricultural Engineering | ||||
| Article 13, Volume 8, Issue 12, December 2017, Page 749-760 PDF (362.47 K) | ||||
| Document Type: Original Article | ||||
| DOI: 10.21608/jssae.2017.38250 | ||||
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| Authors | ||||
| A. Abd El-All1; B. Makhlouf2 | ||||
| 1Soil & Water and Environment Res.Inst, Agric, Res. Center, Giza, Egypt | ||||
| 2Suger Crops Res. Inst. Agric. Res. Center, Giza, Egypt. | ||||
| Abstract | ||||
| Two field experiments were conducted at El-Bostan area at Aly Mubark experimental farm southern EL-Tahrir region (latitude of 30.570 N and longitude of 30.710 E) El-Beheira Governorate, Egypt, during the two winter growing seasons 2014/2015 and 2015/2016 to study the effect of foliar application of boron and iron on growth parameters, yield and quality of sugar beet under continuous deficit irrigation condition in sandy soil. A split plot design with three replicates was used. The present work included three irrigation regimes (100%, 75% and 50% ETc), three boron treatments (0, 0.5 and 1.0 g boric acid/l) and three iron treatments (0, 0.5 and 1.0 g chelated iron EDTA "13% Fe"/l). The treatments of irrigation were lay in main plots, whereas boron and iron treatments were in sub-plots. Sugar beet "Sara" multi-germ variety was sown in both seasons. Data reveled that irrigating sugar beet with 100 ETc significantly increased root diameter and fresh weight; leaf area index (LAI), chlorophyll b, Na, α-amino N and top, root and sugar yields/fed in the two growing seasons. Root length, chlorophyll a, carotenoids, sucrose%, extractable sugar% and purity% significantly increased with irrigating sugar beet at 75% ETc. Increasing foliar application rate of boric acid and chelated iron significantly increased root length and diameter, LAI, top and root yields, chlorophyll a and b, carotenoids, sucrose%, and extractable sugar%. Increasing foliar rates of boric acid and chelated iron led to decreasing sugar impurities. The interaction effect between irrigation regimes and foliar of boric acid were significant for root length, top yield, sucrose%, extractable sugar%, meanwhile the interaction between irrigation regimes and foliar of chelated iron were only significant for top yield, in both seasons. Decreasing amount of applied irrigation water as well as foliar application of boric acid and chelated iron increased water utilization efficiency (WUtE) for root and sugar yields/fed in both seasons. Results summarized that irrigating sugar beet with 100% ETc with foliar application of boron and iron at rate of 1g/l were recommended to obtain high root and sugar yield. While, irrigating sugar beet with 75% ETc and foliar application of boron and iron at rate of 1g/l were recommended to obtain the higher sugar quality under drip irrigation in sandy soil at El-Bostan, El-Beheira Governorate. | ||||
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