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选用绿豆品种白绿9号,用浓度均为50mmol/L的CuSO_4、MgSO_4、FeSO_4溶液进行浸种、喷施、浸种+喷施处理,以蒸馏水处理为对照。探讨绿豆分枝期、开花期、成熟期Cu~(2+)、Mg~(2+)、Fe~(2+)各处理对绿豆根系、叶片、茎秆部位N、P、K含量的影响。结果表明:Cu~(2+)、Mg~(2+)在3个时期对N、P含量的降低作用较强,尤其降低P含量更强,且Cu~(2+)强于Mg~(2+);Cu~(2+)、Mg~(2+)对K含量有增加作用。Fe~(2+)从分枝期到成熟期对N、P、K含量一直起着增加作用。
The mungbean variety Bailu 9 was selected and immersed in CuSO 4, MgSO 4 and FeSO 4 solutions with concentration of 50 mmol / L, sprayed, soaked and spray treated with distilled water as the control. Effects of Cu ~ (2 +), Mg ~ (2+) and Fe ~ (2+) on Contents of N, P and K in Roots, Leaves and Stalks of Mung Bean during Branching, Flowering and Mature Periods . The results showed that Cu2 + and Mg2 + had a strong effect on the reduction of N and P contents in three periods, especially the decrease of P content was stronger than Cu2 + and Mg2 + 2 +); Cu ~ (2 +), Mg ~ (2+) increased the content of K. Fe ~ (2+) from the branching to the maturity of N, P, K content has been playing an increasing role.