摘要
为探究酸性土壤玉米种植过程中“磷固定”问题的解决途径,施用利用聚磷酸铵(APP)制备的3种不同聚合磷占比的玉米专用复合肥料(P1、P2、P3处理),分别以不施肥(CK)、传统施肥(FP)和施用利用磷酸-铵制备的玉米专用肥料(MAP)处理为对照,通过田间试验明确了不同施肥措施对土壤磷素变化、玉米生长发育和产量的影响。结果表明,与FP处理相比,P1~P3处理产量平均提高了14.6%、根际土壤pH值提高0.37%~1.94%、吐丝期P2处理土壤有效磷含量提高46.5%;与MAP处理相比,吐丝期P2处理土壤有效磷含量约提高50.2%;与P1和P3处理相比,P2处理产量分别提高12.3%和6.2%、地上部全磷含量及磷素积累量分别显著提高15.7%~42.3%和24.5%~67.5%。本试验条件下,在酸性土壤中施用含聚合磷的复合肥料,能够提高根际土壤pH值和土壤有效磷含量,促进玉米对磷素的吸收,显著提升玉米生长发育性状,提高产量。且在聚合磷复合肥料处理之间,P2处理在磷肥偏生产力、玉米产量构成因素及产量结果上最优。这表明在酸性土壤上施用含聚合磷的玉米专用肥(APP占比40%),可提高土壤有效磷含量,促进玉米增产。
In order to investigate the solution to the problem of phosphorus fixation during maize cultivation in acidic soil,ammonium polyphosphate(APP)was used to formulate three special compound fertilizers for maize with different polyphosphate ratios(P1,P2,and P3 treatments).The no fertilizer(CK),traditional fertilization(FP),and application of corn specific compound fertilizer prepared using monoammonium phosphate(MAP)treatments were used as controls.The impacts of different fertilizer application measures on soil phosphorus,maize growth and development,and yield were investigated in field experiments.The results demonstrated that the P1-P3 treatments exhibited a 14.6%increase in yield compared to the FP treatment.Additionally,the rhizosphere soil pH demonstrated an increase of 0.37%-1.94%.Furthermore,the soil available phosphorus content of the P2 treatment at the spathe stage demonstrated a notable increase of 46.5%.In comparison to the MAP treatment,the soil available phosphorus content of the P2 treatment at the spathe stage increased by approximately 50.2%.In comparison to the P1 and P3 treatments,the P2 treatment resulted in an increase in yield by 12.3%and 6.2%,respectively.Additionally,the total phosphorus content and phosphorus accumulation in the aboveground were markedly elevated by 15.7%-42.3%and 24.5%-67.5%,respectively.In other words,the application of a compound fertilizer containing polymerized phosphorus in acidic soil could increase the rhizosphere soil pH and soil available phosphorus content,promote the absorption of phosphorus by maize,and significantly enhance the growth and developmental traits of maize,thereby increasing yield.The P2 treatment was identified as the optimal polymeric phosphorus composite fertilizer treatment in terms of phosphorus fertilizer bias productivity,maize yield components,and overall yield results.This suggested that the application of a special maize fertilizer containing polyphosphate(APP 40%)to acidic soil could result in an increase in soil available phosphorus content and a subsequent enhancement in maize yield.
作者
赵蕾蕾
舒艺周
漆增连
周凌翔
吴加香
ZHAO Lei-lei;SHU Yi-zhou;QI Zeng-lian;ZHOU Ling-xiang;WU Jia-xiang(Research and DevelopmentCentre,Yunnan Yuntianhua Co.Ltd.,Kunming Yunnan 650228;Institute of Resources and Plants,Yunnan University,Kunming Yunnan 650500;Yunnan ICL YTH Phosphate Research and Technology Center Co.Ltd.,Kunming Yunnan 650228;College of Resources and Environmental Sciences,China Agricultural University,Beijing 100193)
出处
《中国土壤与肥料》
北大核心
2025年第4期162-170,共9页
Soil and Fertilizer Sciences in China
基金
国家重点研发计划项目(2022YFD1901503)。
关键词
酸性土壤
聚合磷
肥料
玉米
生长性状
产量
acid soil
polyphosphate
fertilizer
maize
growth traits
yield
