山东农业科学2016，Vol.48Issue(8)：93-97,5.DOI:10.14083/j.issn.1001-4942.2016.08.022
鲁南地区水稻土壤养分丰缺及推荐施肥指标体系研究
Study on Abundance and Deficiency of Soil Nutrient and Fertilization Recommendation Index System for Rice in South Shandong
摘要
Abstract
In order to set up the abundance and deficiency of soil nutrient and fertilization recommenda-tion index system for rice in typical of south Shandong,52 “3414”field experiments were conducted in Linyi City,Shandong Province from 2006 to 2015.The nutrient abundance and deficiency index system of rice soil was established according to the correlation between nutrient contents and relative yield.The correlation be-tween the optimum fertilization rate and soil nutrients was verified according to fertilizer effects,then the ferti-lization models of nitrogen,phosphorus and potassium were also established,based on these,the fertilization recommendation index system was initially established.The results showed that the recommended dosage of ni-trogen (N)was 160.0 ~172.9,>172.9 ~188.5,>188.5 ~235.3 and >235.3 ~260.0 kg/hm2 when the content of available N in soil was at extremely high level (>150.0 mg/kg),high level (>130.0 ~150.0 mg/kg),moderate level (>85.0 ~130.0 mg/kg)and low level (≤85.0 mg/kg),respectively.The rec-ommended dosage of phosphorus (P2 O5 )was 65.0 ~71.9,>71.9 ~77.3,>77.3 ~93.5 and >93.5 ~105.0 kg/hm2 when the content of available P in soil was at extremely high level (>58.0 mg/kg),high level (>45.0 ~58.0 mg/kg),moderate level (>21.0 ~45.0 mg/kg)and low level (≤21.0 mg/kg),respec-tively.The recommended dosage of potassium (K2 O)was 100 ~106.9,>106.9 ~112.8,>112.8 ~130.0 and >130.0 ~145.0 kg/hm2 when the content of available K was at extremely high level (>152.0 mg/kg), high level (>133.0 ~152.0 mg/kg),moderate level (>87.0 ~133.0 mg/kg)and low level (≤87.0 mg/kg),respectively.关键词
水稻/土壤养分/丰缺指标/推荐施肥Key words
Rice/Soil nutrients/Abundance and deficiency index/Fertilization recommendation分类
农业科技引用本文复制引用
韩军,闫童,张磊,刘士亮,于永梅,李明光..鲁南地区水稻土壤养分丰缺及推荐施肥指标体系研究[J].山东农业科学,2016,48(8):93-97,5.基金项目
农业部测土配方施肥项目 （）
