土壤深松下磷肥施用深度对夏玉米根系分布及磷素吸收利用效率的影响

陈晓影,刘鹏,程乙,董树亭,张吉旺,赵斌,任佰朝

Effects of phosphorus fertilizer application depths on root distribution and phosphorus uptake and utilization efficiencies of summer maize under subsoiling tillage

Xiao-Ying CHEN,Peng LIU,Yi CHENG,Shu-Ting DONG,Ji-Wang ZHANG,Bin ZHAO,Bai-Zhao REN

图4 不同施肥深度下夏玉米抽雄期根干重和根长在0~60 cm土壤剖面的垂直分布(2018) CK: 不施磷肥; P5: 距离地表-5 cm处施磷; P10: 距离地表-10 cm处施磷; P15: 距离地表-15 cm处施磷; P20: 距离地表-20 cm处施磷。

Fig. 4 Coordination vertical distribution of root dry weight and root length of summer maize in 0-60 cm depths at VT stage in the different fertilization depths (2018) CK: no P applied; P5: phosphorus application depth was 5 cm; P10: phosphorus application depth was 10 cm; P15: phosphorus application depth was 15 cm; P20: phosphorus application depth was 20 cm.