MUTUAL EFFECT AMONG COMPOST AND FOLIAR SPRAYING WITH ZINC AND BORON ON SUGAR BEET (Beta vulgaris l.) GROWN ON SALINE SANDY LOAM SOIL

Abstract

Two field experiments were conducted at the village (7) in Gelbana, North Sinai Governorate, Egypt during two successive winter seasons of 2013/2014 and 2014/2015 to study the response of sugar beet (Mirodor) grown on saline sandy loam soil to study the interaction effect of compost, (CO) amendment and foliar spraying with micronutrients (Zn and B) solely or in combinations on some growth parameters, productivity and nutrients content in sugar beet roots. The obtained results reveal that CO and foliar application with Zn and B enhanced the growth and yield productivity of sugar beet roots as well as nutrient contents. Available N, P, K, Fe, Mn, Zn and B contents were increased due to the above mentioned treatments. On the other hand, the electrical conductivity (EC dSm-1) and soil pH values decreased due to these treatments. Foliar spray with micronutrients in combination with CO substantially elevated these parameters N, P, K, Fe, Mn, Zn and B contents in roots were significantly increased by application of the treatments. The highest response of productivity and nutrients content in root were achieved by application of CO in combination with foliar spray of Zn + B followed by foliar spray of Zn + B in both seasons. Highest values of yield, yield components, nutrient contents and sucrose percent as well as sugar yield were obtained due to the application of compost at rate of 5 Mg fed.-1 + foliar spray with Zn + B in both seasons.

Impact of Foliar Spraying of some Potassium Sources and Boron Levels on Sugar Beet Quantity and Quality

“…Increasing sugar beet chemical constituents, yield components, quality and yields by foliar spraying with boron may be attributed to the role of boron in cell division and elongation in meristematic tissues, nitrogen metabolism and hormonal action (BARI, 2006), also boron had a vital role in sugar translocation to roots, therefore improve growth, yields and quality of sugar beet. These findings agree with Abo-Steet et al (2015) they found that CO and foliar application with Zinc and Boron enhanced the growth and yield productivity of sugar beet roots as well as nutrient contents and available N, P, K, Fe, Mn, Zn and B contents. Similar results were obtained by Abdel-Motagally (2015) who reported that foliar application with boron at a rate of 100 mg L -1 gave the highest sugar yield and the best technological quality.…”

“…Foliar spraying sugar beet plants with boron at a suitable rate depended on soil pH and boron content, significantly increased root length, root diameter, sucrose and juice purity percentages, root, top and sugar yields, however, Na, K, α-amino N, harvest index and loss sugar yield were decreased. Seeing as roots absorbed boric acid and the role of boron in chloroplast formation, sink limitations and changes in the cell wall, which lead to secondary effects in plant metabolism, development, growth and yield with good quality (Armin and Asgharipour, 2012;Abd El-Azez, 2014;El-Sheref, Amina, 2014;Abo-Steet, Seham et al, 2015;Abdel-Nasser andBen-Abdalla, 2019 andKandil et al, 2020).…”

Yield and Chemical Composition of Sugar Beet in Response to Potassium Rates, Bio and Foliar Fertilizations

“…These results are confirmed with those obtained by Abo-Steet et al, (2015) and Masri and Hamza (2015).…”

Integrated Application of K and Zn as an Avenue to Promote Sugar Beet Yield, Industrial Sugar Quality, and K-Use Efficiency in a Salty Semi-Arid Agro-Ecosystem

“…Concerning the industrial sugar quality, foliar Zn 300 applied singly or in combination (Tables 4 and 5, Tables S2 and S3), significantly increased sucrose, PS, and purity, while the non-sugar contents (Na, K, α-amino N, and LS) were decreased compared to control (Zn 0 ). Similar trends are noted in [77,81,82]. These reports show that Zn improves sugar beet sugar quality (sucrose, PS, and purity) and reduces non-sugary elements under salinity conditions.…”