摘要
采用田间试验,研究了在白浆土上施用生物硅肥对水稻养分吸收利用的影响。结果表明,本试验条件下,氮素、磷素、钾素和硅素的吸收高峰并不同步,氮素和磷素的累积主要集中在分蘖期到抽穗期;钾素和硅素的累积主要集中在两个阶段,一个阶段是从分蘖期到拔节期,另一个是从抽穗期到乳熟期。不同施硅处理之间养分累积量进行比较,氮素和钾素各时期均以Si40处理累积量最大,磷素和硅素各时期均以Si30处理累积量最大。
Field experiment was carried out to study the influence of application bio-silicon fertilizer on rice nutrient absorption and utilization in albic soil. The results showed that,under the experimental conditions, nitrogen, phosphorus, potassium and silicon absorption peak was not synchronous, nitrogen and phosphorus accumulation mainly concentrated in the tillering stage to heading stage; potassium and silicon accumulation mainly concentrated in the two stage, one was from tillering stage to jointing stage, another from heading stage to the milk stage. Compared to different silicon levels, the cumulative amount of the Si40 treatment was the largest at different periods in nitrogen and potassium, and the cumulative amount of the Si30 treatment was the largest at different periods in phosphorus and silicon.
出处
《天津农业科学》
CAS
2012年第5期64-66,共3页
Tianjin Agricultural Sciences
基金
黑龙江省教育厅高职高专项目(12515206)
关键词
白浆土
施硅水平
水稻
养分
累积动态
albic soil
silicon leves
rice
nutrient
cumulative dynamic
