摘要
选用杂交稻雁两优498和优质稻爱华5号为试验材料,研究了不同钙肥水平下,水稻对钙的吸收积累及分配。结果表明,不同钙肥水平对水稻吸收积累钙具有显著影响。各施钙处理间以施Ca(OH)2450kghm-2和600kghm-2效果最好,在生育后期根系伤流量、伤流液以及各器官中钙含量均显著高于其他处理和不施钙对照(CK)。杂交稻雁两优498在同量施肥水平下,积累钙的能力强于优质稻爱华5号。
Two typical rice varieties were used to study the absorption, accumulation and distribution of rice to calcium in different calcium fertilizer levels. The results showed that the level of calcium fertilizer had significant influence on rice absorbing and accumulating the calcium, the best results in the tratments of Ca （OH）2 450 kg hm-2 and 600 kg hm-2. These two treatments were significant higher than other treatments and CK not only the root system wound flow but also the calcium contents in bleeding liquid and different organs. Hybrid rice Yanliangyou498 had the better ability to absorb calcium than conventional rice Aihua 5 under the same fertilizer level.
出处
《土壤通报》
CAS
CSCD
北大核心
2009年第3期640-644,共5页
Chinese Journal of Soil Science
基金
国家“十一五”重大科技攻关项目“国家粮食丰产科技工程”(2006BA520A01)
农业部农业结构调整重大研究专项“稻米质量安全控制技术研究”(04-01-03B)资助
关键词
钙肥
水平
吸收
分配
Calcium fertilizer
Level
Absorption
Distribution
