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《Journal of Irrigation and Drainage》 2017-09
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Impact of Spraying Manganese Fertilizer on Leaf on Growth,Absorption and Transfer of Manganese in Spring Wheat

ZENG Jianguo;LI Tingliang;WEN Tao;WANG Weihua;ZUO Yuhuan;LI Jia;College of Resources and Environment, Shanxi Agricultural University;  
The use efficiency of manganese is very low when applied as base fertilizer in calcareous soil. Using pot experiments, this paper investigated the efficacy of spraying Mn SO4 at different concentrations on the leaf of spring wheat at different growth stages in improving its physiological traits, yield, as well as absorption and transfer of the manganese. The results showed that leaf-spraying Mn SO4 solution at 0.2% to 0.5% concentration from jointing stage to filling stage increased the activities of peroxidase and catalase, as well as the content of chlorophyll. Leaf-spraying Mn SO4 solution at 0.05% to 0.2% concentration at booting stage significantly improved the grains per spike and 1000-grain weight. Also, leaf-surface spraying improvedthe yield and the manganese content in different organs. With the increase in Mn SO4 concentration, the distribution of manganese in the plant organs was in the order of leafglumerootseedstem. The manganese sprayed at the jointing stage was transferred mainly to the roots, while thoses prayed atbooting and filling stages were transferred to the glume and the content of manganese in the grain varied from 41.8 to 81.1 mg/kg. Considering improvement in physiological traits, yield and manganese absorption and transfer, spraying Mn SO4 with 0.2% concentration at the booting stage is effective for improving yield and grain quality.
【Key Words】: spraying manganese fertilizer spring wheat physiological index yield absorption and transfer of manganese
【Fund】: 国家级大学生创新创业训练计划项目(2014090);; 农业公益性行业科研专项经费项目(201303104)
【CateGory Index】: S512.12
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