Response of Sugar Beet Yield and Quality to Fertilization with Different Nitrogen Levels Combined With Compost
Year: 2021
Type: article
Abstract: Two field experiments were carried out at Mallawi Agriculture Research Station Farm, Minia governorate, Egypt, within two successive winter seasons of 2016/2017 and 2017/2018 to deduce the effect of nitrogen mineral fertilizer combined with compost treatments on yield and quality of sugar beet.Compost was prepared by utilizing a mixture of farm residues (Corn stalks and soybean straw) inoculated with special bio-decomposer strains of bacteria and fungi under aerobic conditions.The mixture received 10% rock-phosphate and 20% bentonit.After maturity the compost was amended with nitrogen fixing bacteria, phosphate dissolving bacteria and potassium dissolving bacteria.Four doses of nitrogen mineral fertilizer (0, 50, 75 and 100 kg N Fed -1 ) as ammonium nitrate 33.5% N per Fed were used.Four levels of compost (0, 2, 4 and 6 Ton Fed -1 ) were used.Generally, mineral fertilization with 75 kg nitrogen combined with 4 Ton Fed -1 compost gave the best values for root length, root weight, root weight and yield.Data of top sugar beet plant (fresh, dry weight and yield) reveals that there are significant difference among fertilized with 0, 50,75 and 100 kg N Fed -1 in the presence of 0, 2, 4 and 6 Ton Fed -1 compost.The best values of fresh, dry weight and top yield were recorded in the treatment received 75 kg N Fed -1 in the presence of 4 Ton Fed -1 compost.Significant differences in sucrose extractable, carotenoids, chlorophylls a+b, potassium and ∞-amino N (meq 100g -1 ) were observed according to fertilization treatment levels.These results suggest that sugar beet fertilization by 75% N RD (67.5 kg N) fed -1 of nitrogen combined with 4 Ton compost is highly recommended to obtain the highest yield of sugar beet.
Source: Current Science International
Language: English
Subfield: Soil Science
Domain: Life Sciences
Open Access status: diamond
OpenAlex ID: W4312819815