核农学报2012，Vol.26Issue(6)：947-951,5.
磷素水平对大豆氮素积累及产量的影响
EFFECT OF PHOSPHORUS LEVEL ON NITROGEN ACCUMULATION AND YIELD IN SOYBEAN
摘要
Abstract
In this paper,the 15N labeling with sand culture was conducted to study effects of phosphorus level on nitrogen accumulation,nodule nitrogen fixation and yield of soybean plants.Results showed that nitrogen accumulation,fixation and yield of soybean plants all presented a single peak curve with improvement of phosphorus nutrition level,with the peak value of phosphorus concentration in nutrient solution of 31 mg/L.When phosphorus concentration of nutrient solution was 11 mg/L,no obvious promotion was found on the ratio of nodule nitrogen fixation when increasing phosphorus concentration again,However,when phosphorus concentration of nutrient solution was 21mg/L,increasing phosphorus concentration again had no obvious promotion on soybean plant nitrogen accumulation,nodule nitrogen fixation accumulation and yield,indicating that effect of phosphorus nutrition level on nitrogen fixation was lower than that on yield formation level.关键词
大豆/磷素水平/氮素积累/产量Key words
soybean/phosphorus level/nitrogen accumulation/yield分类
农业科技引用本文复制引用
姚玉波,吴冬婷,龚振平,马春梅..磷素水平对大豆氮素积累及产量的影响[J].核农学报,2012,26(6):947-951,5.基金项目
黑龙江省科技计划 （）
