吉林农业大学学报2024，Vol.46Issue(5)：802-808,7.DOI:10.13327/j.jjlau.2024.20227
磷肥配施对黑土磷素形态及有效性的影响
Effects of Phosphorus Fertilizer Distribution on Phosphorus Mor-phology and Effectiveness in Black Soil
摘要
Abstract
Through two years of field experiments,a modified Hedley phosphorus classification method was used to quantitatively evaluate the distribution and effectiveness changes of different types of phosphorus fertilizers in different phosphorus pools,so as to provide basic support for the proposal of a"phosphorus source-crop-soil"matching scheme for maize planting system.There were six treatments in the experiment:no phosphate fertilizer(ck),100%diammonium phosphate(FP),25%calcium-magnesium phosphate+75%diammonium phosphate(T1),50%calcium-magnesium phosphate+50%diammonium phosphate(T2),75%calcium-magnesium phosphate+25%diammonium phosphate(T3),and ammonium polyphosphate∶diammonium phosphate=2∶1(T4).The results showed that the application of phosphorus fertilizer could significantly increase maize yield,with an increase in yield range of 9.13%to 25.39%;the maize yield of T1-T4 was basically the same as that of FP.The application of phosphorus fertilizer could increase the phosphorus uptake of maize plants,and its phosphorus fertilizer utilization rate ranged from 10.61%to 22.24%;the phos-phorus fertilizer utilization rate of T1-T4 significantly increased,by 5.72-11.63%compared with FP.The application of phosphorus fertilizer could significantly increase soil effective phosphorus con-tent and phosphorus activation coefficient,and soil effective phosphorus content of T1-T4 increased by 5.86%-24.91%compared with FP,of which T1 could more significantly increase the bioeffective-ness of soil phosphorus.The application of phosphorus fertilizer significantly increased soil active and low active phosphorus content and significantly decreased medium active phosphorus content;soil active phosphorus content of T1-T4 increased by 7.05%-28.79%compared with FP.The appli-cation of phosphorus fertilizer increased the content of soil active phosphorus(H2O-P,NaHCO3-P)and low active phosphorus(HCl-P),while reducing the proportion of medium active phosphorus(NaOH-P)and residual phosphorus(Res-P)to total phosphorus.Therefore,under the conditions of this experiment,a reasonable phosphorus fertilizer combination of 25%calcium-magnesium phos-phorus fertilizer and 75%diammonium phosphate was recommended,which promoted the conversion of active phosphorus to active phosphorus in the soil,improved the bioeffectiveness of soil phospho-rus,and was conducive to the formation of maize yield and the improvement of phosphorus fertilizer utilization efficiency.关键词
磷肥/黑土/磷素形态/磷素有效性/玉米/产量Key words
phosphate fertilizer/black soil/phosphorus form/phosphorus availability/maize/yield分类
农业科技引用本文复制引用
雷烁,李翠兰,谢修鸿,张晋京,高强..磷肥配施对黑土磷素形态及有效性的影响[J].吉林农业大学学报,2024,46(5):802-808,7.基金项目
国家重点研发计划项目(2017YFD0200205),现代农业产业技术体系建设专项(CARS-38),吉林省科技发展计划项目(20170101070JC) （2017YFD0200205）
