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针对水稻旱育秧田化学壮秧剂长期大量施用造成的环境污染问题,本文采用田间试验的方法,把几种功能微生物菌与矿质营养复配成复合微生物药肥并用于水稻育秧,研究水稻幼苗叶片超氧化物歧化酶(SOD)、过氧化物酶(POD)、苯丙氨酸解氨酶(PAL)活性及脯氨酸(Pro)和丙二醛(MDA)含量的变化。结果表明:复合微生物药肥施用后水稻幼苗叶片超氧化物歧化酶、过氧化物酶、苯丙氨酸解氨酶活性和脯氨酸含量均显著增高,丙二醛含量显著降低,秧苗抗逆酶活性增加是复合微生物药肥提高水稻幼苗抗逆性的一个重要原因。
Aiming at the problem of environmental pollution caused by long-term mass application of chemical seedling-raising agent in rice dry-seedling nursery, this paper adopts the method of field experiment to compound several functional microbial strains and mineral nutrition into compound microbial fertilizer and used it in rice seedling raising. The activities of superoxide dismutase (SOD), peroxidase (POD), phenylalanine ammonia lyase (PAL) and the contents of proline (MDA) and malondialdehyde (MDA) The results showed that the activities of superoxide dismutase, peroxidase, phenylalanine ammonia-lyase and proline in rice seedling leaves increased significantly after application of compound microbial fertilizer, the content of malondialdehyde was significantly decreased and the seedling resistance Increasing enzyme activity is an important reason that composite microbial fertilizer can improve the resistance of rice seedlings.