3种磷肥与褐煤配施对苗期玉米磷吸收的影响  

Effects of Application of Three Phosphate Fertilizers Mixed with Lignite on Phosphorus Uptake by Seedling Maize

作　　者：李友伟 杨依彬 冯紫荟 丘智晃 张承林[1] LI You-wei;YANG Yi-bin;FENG Zi-hui(School of Resources and Environment,South China Agricultural University,Guangzhou,Guangdong 510642)

机构地区：[1]华南农业大学资源环境学院,广东广州510642

出　　处：《安徽农业科学》2023年第20期150-152,共3页Journal of Anhui Agricultural Sciences

摘　　要：采用盆栽试验,以不施磷和单施磷肥为对照,选取磷酸二铵、磷酸一铵、过磷酸钙3种磷肥,在赤红壤上通过穴施探究3种磷肥与褐煤配施对苗期玉米生长及磷吸收的影响。出苗35 d后,测定地上部与地下部的干重和磷吸收量、根表面积、总根长和计算磷肥利用率。结果表明,在相同的氮磷钾肥用量下,3种磷肥与褐煤配施后在各项指标上对比无显著差异,但均比单独施用磷肥处理显著增加。过磷酸钙与褐煤配施后增加效果最为显著,其中地下部干重增加110%,地上部磷吸收量增加313%,地下部磷吸收量增加410%,磷肥利用率提升153%。A pot experiment was conducted to investigate the effects of three phosphorus fertilizers(diammonium phosphate,monoammonium phosphate and single superphosphate)on the growth and phosphorus uptake by seedling maize through hole application mixed with lignite on russet red soil.After 35 days of seedling emergence,the dry weight and phosphorus uptake of aboveground and underground part,root surface area,total root length and phosphorus fertilizer utilization rate were measured or calculated.The results showed that at the same dosage of N,P and K,there was no significant difference between the three treatments of phosphorus fertilizer and lignite,but all of them showed a significant increase compared with the treatment of phosphorus fertilizer alone.Single superphosphate mixed with lignite had the most significant positive effect,including 110%increase in dry weight of under ground part,313%increase in phosphorus uptake of above ground part and 410%increase in under ground part,and 153%increase in phosphorus fertilizer utilization.

关 键 词：褐煤 磷肥 玉米 配施 

分 类 号：S513[农业科学—作物学]