吉林农业大学学报2017，Vol.39Issue(1)：60-66,7.DOI:10.13327/j.jjlau.2017.3136
施磷对苏打盐碱土区水稻养分吸收、转运及分配的影响
Effects of Phosphorus Fertilizer Application on Nutrient Absorption,Translocation and Distribution of Rice in Saline-sodic Soil Region
摘要
Abstract
To perform reasonable application of phosphorus fertilizer to rice in major rice producing areas of the Midwest of Jilin province,field experiment was conducted to study the effects of different phosphorus fertilizer applications (0,40,80,120,160 kg/hm2) on yield,nutrient absorption,and translocation and distribution of rice from 2014 to 2015.The results showed that rice yield increased with the increase of phosphorus fertilizer application at the range of 40-120 kg/hm2,when phos phorus fertilizer application increased to 160 kg/hm2,rice yield declined.According to rice yield (y) and phosphorus fertilizer application (x) fitting,the optimum phosphorus fertilizer application rate was obtained,111.3 kg/hm2 and 102.3 kg/hm2,respectively.The application of phosphorus fertilizer significantly increased the absorption of N,P and K at the main growth stage of rice,and could improve the translocation from N,P,and K nutrition to grain at the heading stage.The amount of nutrient accumulation was proportional to the amount of translocation to grain at the range of 40-120 kg/hm2(P2O5) at the heading stage of rice,when the phosphorus fertilizer application increased to 160 kg/hm2.It could cause negative effect for the translocation from N,P,and K nutrition to grain.The correlation analysis showed that there was significantly or extremely significandy positive correlation between absorptions of N,P and K at rice growth stages except returning green stage,there was also significantly or extremely significantly positive correlation between N,P and K absorptions and yield,and the correlation coefficients were the highest at the filling stage.By comprehensive studies of the performances of rice yield,nutrient absorption and the relationships between absorptions of N,P and K and rice yield,we found that the optimum phosphorus application rate was at the range of 102.3-111.3 kg/hm2 under the conditions of the experiment.关键词
水稻/产量/氮/磷/钾/最佳施磷量Key words
rice/yield/N/P/K/optimum phosphorus fertilizer application rate分类
农业科技引用本文复制引用
侯云鹏,杨建,孔丽丽,秦裕波,王立春,谢佳贵..施磷对苏打盐碱土区水稻养分吸收、转运及分配的影响[J].吉林农业大学学报,2017,39(1):60-66,7.基金项目
国家科技支撑计划项目(2011BAD16B10,2012BAD04B02,2013BAD07B02,20130206006NY),国际植物营养研究所(IPNI)项目(BFDP-Jilin-2016) （2011BAD16B10,2012BAD04B02,2013BAD07B02,20130206006NY）
