Soil Science & Plant Nutrition · 1968 · 56 citations · 2 references
Abstract Nitrogen NutritionBiogeochemistryEngineeringYoung PlantsBotanyChemical ComponentsSustainable AgricultureAgricultural EconomicsAmmonium NitrogenAmmonia ToxicityPlant NutritionAmmoniaCrop PhysiologyPhotosynthesisPlant PhysiologyNitrogen Sources
Abstract Nitrogen nutrition has great influences not only on the yields, but also on the chemical components of the plants. Nitrate nitrogen is generally found to be superior to ammonium nitrogen as the nitrogen source for higher plants (1). As reported in the previous paper (2), young plants of sugar beet grown with the culture solution containing a high level of ammonium nitrogen developed the symptom of ammonia toxicity. To make clear the mechanism of ammonia toxicity, comparative studies on the absorption and the assimilation of ammonium- and nitrate-nitrogen in higher plants at young stages of growth were carried out.
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