水分与硼对大豆农艺性状和产量的影响

本试验采用盆栽试验研究不同水分和硼对大豆农艺性状和产量的影响.研究表明:水分对大豆株高和干物重影响显著;硼对大豆株高和干物重影响不显著;水分与硼互作对大豆株高和干物重影响也不显著.在水分胁迫时,施硼显著影响大豆产量构成因子的形成.干旱胁迫施硼无效;偏涝时,施硼能显著增加大豆单株荚数、单株粒数和单株产量.     

硼对金属间化合物Ni_3Fe氢气诱发环境氢脆的影响(英文)

In this paper the tensile properties of both ordered and disordered Ni-24Fe and Ni-24Fe-0.03%B(wt%)alloys in gaseous hydrogen was investigated.The result shows that the ductility of the disordered Ni_3Fe is significantly larger than that of ordered material in gaseous hydrogen.However,the ductility of ordered Ni3Fe doped with 0.03%B is nearly the same as that of disordered one indicating the obvious suppressing effect of boron on the H_2-induced embrittlement.Based on the segregation behavior of boron in Ni_3Al,it is proposed that the suppressing effect of boron in Ni_3Fe on the H_2-induced embrittlement is attributed to the segregation of boron on grain boundaries,thereby reducing the hydrogen diffusivity along the grain boundaries.