Effect of Sulphur Application and some Foliar Feeding on Productivity and Roots Quality of Sugar Beet

Abstract

A field experiment was conducted at El-Gemmeiza Agric. Res. Station, Gharbeya Governorate, Egypt during the two successive winter seasons of 2017/2018 and 2018/2019, to study the effect of sulphur ( 0, 40 and 80 kg/fad.) and three foliar spray treatments (mixture of FeSO4 20%+MnSO43H2O 23%+ZnSO47H2O 23% +B as boric acid 17%) at 1%, blue green algae extract at 1 liter /fad. and yeast extract at 100 ml/liter water on growth , yield and root quality of sugar beet (cv Oskar poly) grown in a clay soil conditions. These treatments were arranged in a split plot in a complete block design with three replications. Sulphuer levels were randomly distributed in the main plots, while foliar spray treatments were randomly arranged in the sub plots. The interaction between sulphur at 80 kg/fad. and spraying with blue green algae extract at 1 liter / fad. gave the highest values of sugar beet shoots, roots and its components. While, the interaction between sulphur at 80 kg/fad. and spraying with the mixture of Fe+Zn+Mn+B at 1 % recorded maximum values of Fe, Zn, Mn and B in leaf tissues and roots. The increases in yield of sugar were about 32.8 and 56.3 % for the interaction between 80 kg S/fad. and spraying with blue green algae, 24.9 and 42.7 % for the interaction between 80 kg S/fad. and spraying with mixture of Fe+Zn+Mn+B over the interaction between 0 S and spraying with yeast extract in the 1 st and 2 nd seasons, respectively.

Impact of Compost Tea and Spirulina platensis Algae on Sugar Beet Grown under Different Levels of Inorganic Nitrogen Fertilizer

“…The increases in sucrose (%), extracted sugar and quality index with the highest level of ACF treated beet canopies, i.e., 2 l/fed (Table 4) could be attributed to raising chlorophyll content in leaves (Table 3), which encouraged the photosynthetic activity of the treated plants, leading to more different metabolic substances production, such as accumulation of carbohydrates and dry matter in plant tissues, which positively contributed to the final output, i.e., sugar yield. These findings are in line with those reported by El-Fotoh et al 16 and Ghazy et al 13 . In addition, Morsy 37 found that the application of algae extracts to the soil or foliage increased carbohydrate content.…”

“…In addition, spraying algae extract improves the photosynthetic pigment contents 34 . It may play a role through its containment of cytokinins in delaying the leaves' ageing by reducing the chlorophyll degradation 16 and its influence stimulated the nutrients held by plants 35 . In the same trend, foliar application with algae extract increased chlorophyll content and fresh and dry weights/plant in sugar beet 12 .…”

“…Under conditions of low nitrogen fertilizer level, i.e., 90 kg N/fed, the favourable combination of 60 l compost tea/fed as a soil drench and 2 l/fed of algal culture filtrate as a foliar spray on beet canopies (Table 8) may be attributed to the better environmental conditions provided by compost tea in the plant rhizosphere besides as well as its role in increasing the presence of beneficial microorganisms and the level of supply in available form of nutritional elements required by the plant 31 . Furthermore, algae extract is considered a source of the high content of plant regulators that directly enhance the metabolism process, as well as containing some nutrients essential for plant growth and development 16 .…”

“…Abdallah et al 15 cleared that foliar application of S. platensis at 7.5 mL LG 1 four times+75% of recommended N dose improved the fresh and dry weight/plant of sweet basil. Abu El-Fotoh et al 16 showed that spraying sugar beet foliage with blue-green algae extract at 3 l/fed significantly increased photosynthetic pigments content, sucrose and purity percentages and yields of root and sugar/fed.…”