在低洼草炭地种植水稻,往往在营养生长期生长正常,而到抽穗至成熟阶段出现茎叶干枯,谷粒不饱满,空秕粒增加,结果造成减产。这种现象是一种生理障碍。一、早衰的原因一是由于排水不畅,通透性差,水中含氧量极低,致使根系发育不好而坏死,造成早衰。二是由于低洼草炭地多渍水,氧化还原较差,产生大量的二价铁离子、硫化氢、有机酸 Rice growing in low-lying peatlands often grows normally during vegetative growth, and leaves and stems dry up to the mature stage of heading to maturity. The grains are not full and the number of empty grains increases, resulting in a decrease in yield. This phenomenon is a physical disorder. First, the reasons for premature aging First, poor drainage, poor permeability, low oxygen content in the water, resulting in poor root development and necrosis, resulting in premature aging. Second, because of the low water level in peatlands, water is more redox, resulting in a large amount of ferrous ions, hydrogen sulfide, organic acids