NO3-和NH4+对水稻和旱稻生长及水分利用的影响
SOIL AND FERTILIZER SCIENCES IN CHINA(2007)
Abstract
用分根法研究NO3-和NH4+对水稻'越富'和旱稻'297'生长和水分利用的影响,结果表明:与水稻相比,旱稻在NO3-中的生长最好.NH4+提高氮素在水稻根中的分配比率,同时也提高了水稻和旱稻根系在NO3-/NH4+处理中NH4+一侧的吸氮速率.旱稻水分利用率高于水稻,且二者的水分利用率都遵循NH4+>NH4NO3≥NO3-的规律.
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Key words
lowland rice,water use
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