Sugar beet (Beta vulgaris L.) is the second most abundant sugar crop after sugarcane. Two field experiments were conducted at the research farm of the Faculty of Agriculture, Saba Basha, Alexandria, Egypt, to study the effects of foliar application treatments and boron (B) fertilizer applications on monogerm sugar beet plants (cultivar classic) during the 2017/2018 and 2018/2019 seasons. The treatments were replicated three times in a split-plot design. Four foliar applications [fulvic acid (FvA), NPK nanoparticles (NPK NPs), FvA + NPK NPs, and a control (water)] were randomly allocated to the main plots. Different numbers of foliar spray applications of B [one application at 120 days after sowing or two applications at 120 and 150 days after sowing, as well as a control (water)] were assigned within the subplots. FvA + NPK NPs significantly increased the root length, root diameter, root weight, and root/shoot ratio of the sugar beet plants; the greatest values were obtained by spraying FvA + NPK NPs during both seasons. B significantly increased the root yield, shoot yield, and biological yield, and two applications of B resulted in the greatest values of root yield, shoot yield, biological yield, and quality of sugar beet. The interaction between FvA or NPK NPs and B significantly affected the yield and quality parameters of the sugar beet plants. However, the greatest mean values of these traits resulted from foliar applications of FvA + NPK NPs in conjunction with applications of B under the conditions at Alexandria, Egypt.

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纳米肥，富马酸和硼肥对甜菜产量和品质的影响

甜菜（甜菜L.）是仅次于甘蔗的第二富裕的糖料作物。在2017/2017年期间，在埃及亚历山大亚历山大萨巴巴沙农业学院的研究农场进行了两个田间试验，以研究叶面施肥和硼（B）肥料施肥对单生甜菜植物（经典品种）的影响2018和2018/2019赛季。在分裂图设计中将处理重复三次。将四个叶面施用[富里酸（FvA），NPK纳米颗粒（NPK NPs），FvA + NPK NPs和对照（水）]随机分配到主样区。在子样图中分配了不同数量的B叶面喷洒[在播种后120天施药一次，或在播种后120和150天施药两次，以及对照（水）]。FvA + NPK NP显着增加了根长，甜菜植株的根径，根重和根/茎比 通过在两个季节喷洒FvA + NPK NP可获得最大的价值。B显着增加了根产量，枝条产量和生物产量，两次施用B导致根产量，枝条产量，生物产量和甜菜质量达到最大值。FvA或NPK NP与B之间的相互作用显着影响了甜菜植物的产量和质量参数。但是，这些性状的最大平均值是在埃及亚历山大市条件下叶面施用FvA + NPK NP以及施用B造成的。B显着增加了根产量，枝条产量和生物产量，两次施用B导致根产量，枝条产量，生物产量和甜菜质量达到最大值。FvA或NPK NP与B之间的相互作用显着影响了甜菜植物的产量和质量参数。但是，这些性状的最大平均值是在埃及亚历山大市条件下叶面施用FvA + NPK NP以及施用B造成的。B显着增加了根产量，枝条产量和生物产量，两次施用B导致根产量，枝条产量，生物产量和甜菜质量达到最大值。FvA或NPK NP与B之间的相互作用显着影响了甜菜植物的产量和质量参数。但是，这些性状的最大平均值是在埃及亚历山大市条件下叶面施用FvA + NPK NP以及施用B造成的。