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通过实地考查、土培试验,对水稻“黄化病”与铁锰平衡的关系、铁锰平衡失调对水稻生长发育的影响及其调控措施进行了探讨.结果表明;水稻“黄化病”是由于土壤中过量的锰及有效铁锰比低,使水稻积累过多的标而降低活性铁含量水平,使水稻受到生理缺铁胁迫和铁锰营养平衡失调,而诱发的生理病害;铁锰平衡失调使水稻生长发育严重受阻、产量极显著降低;施用硅酸盐、石灰或叶面喷施铁后,均有利于改善水稻铁锰营养平衡,促进水稻生长发育.
The field test and soil culture experiment were carried out to discuss the relationship between rice “yellowing disease” and the balance of iron and manganese, the effect of the balance of iron and manganese balance on the growth and development of rice and the regulation measures. The results showed that the “yellow disease” of rice was due to the excess manganese and the low ratio of available Fe-Mn in the soil, which caused the excessive accumulation of rice and reduced the content of active iron, which impaired rice’s physiological iron deficiency and iron-manganese balance , And induced physiological disease; imbalance of iron and manganese so that rice growth and development were severely hampered, the yield was significantly reduced; the application of silicate, lime or foliar spray iron, are conducive to improving rice iron and manganese nutrition balance and promote rice growth development.