不同土壤水分状况下施硼对油菜硼吸收、利用的影响  

Effect of boron fertilization on B uptake and utilization by oilseed rape(Brassica napus L.) under different soil moisture regimes.

作　　者：娄运生[1] 杨玉爱[2] 徐建民[2] 

机构地区：[1]南京农业大学资源与环境学院,南京210095 [2]浙江大学环境与资源学院,杭州310029

出　　处：《应用生态学报》2001年第3期478-480,共3页Chinese Journal of Applied Ecology

基　　金：澳大利亚国际农业研究中心资助!项目(ACIARPN 91 2 0 )

摘　　要：Pot experiment was conducted in greenhouse to determine the effect of boron fertilization on B uptake and utilization by oilseed rape at seedling stage as influenced by soil moisture regime.The results showed that B concentration in shoot and root increased with the increase of soil water content and B fertilization level,while its utilization efficiency(BUE) and mobilization index(BMI) increased with the decrease of soil water content and B application level.Differences in BUE and BMI of test oilseed rape cultivars were significant,i.e.,V 1 showed higher BUE and BMI than V 4 under the same conditions.It is concluded that BUE and B mobility in plant were the major factors responsible for the differences in response of different oilseed rape cultivars to B deficiency.Pot experiment was conducted in greenhouse to determine the effect of boron fertilization on B uptake and utilization by oilseed rape at seedling stage as influenced by soil moisture regime.The results showed that B concentration in shoot and root increased with the increase of soil water content and B fertilization level,while its utilization efficiency(BUE) and mobilization index(BMI) increased with the decrease of soil water content and B application level.Differences in BUE and BMI of test oilseed rape cultivars were significant,i.e.,V 1 showed higher BUE and BMI than V 4 under the same conditions.It is concluded that BUE and B mobility in plant were the major factors responsible for the differences in response of different oilseed rape cultivars to B deficiency.

关 键 词：土壤水分 硼肥 油菜 硼吸收 硼利用 

分 类 号：S565.4[农业科学—作物学] S143.71