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本试验以掖单４号春玉米为试验材料，通过不同施肥处理，系统地研究了春玉米磷素营养的吸收、积累、分配和转移规律。结果表明，磷的吸收与生育进程间呈Ｓ形曲线变化；磷的吸收速度在生育期间呈单峰曲线变化，其峰值在出苗后７８ｄ左右，时值散粉期；每生产１００ｋｇ籽粒需吸收Ｐ＿２Ｏ＿５１．０５ｋｇ；磷素在各器官的分配随生长中心转移而变化，小喇叭口期之前主要分配在叶片中，小喇叭口至散粉期主要分配在叶片、基秆中，散粉之后其分配中心转向果穗，供籽粒生长发育。
In this experiment, Yedan No.4 spring maize was used as experimental material to systematically study the absorption, accumulation, distribution and transfer of phosphorus nutrition in spring maize through different fertilization treatments. The results showed that there was a S-shaped curve between the uptake and the growth of P, and the absorption rate of P showed a single peak curve during the growth period. The peak value was about 78 days after the emergence, and the value of P_2O_51 was absorbed by every 100 kg of grain. 05kg; the distribution of phosphorus in various organs with the growth center of the transfer changes before the trumpet trichomes are mainly distributed in the leaves, trumpet to the bulk of the main distribution in the leaves, stems, scattered after the distribution of its shift to the ears, For grain growth and development.