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  1. No Access

    Article

    Toxicity of Boron to Rice

    IN the course of a study on the chemical retardation of soil reduction as a remedy for physiological disorders of the rice plant, we observed that despite this retardation by calcium nitrate and manganese diox...

    F. N. PONNAMPERUMA, WEN LIN YUAN in Nature (1966)

  2. No Access

    Article

    Manganese Dioxide as a Remedy for a Physiological Disease of Rice associated with Reduction of the Soil

    A PHYSIOLOGICAL disorder of rice known as ‘suffocation disease’ occurs on the poorly drained soils of northeastern Taiwan. The disease, which is characterized by a reddish-brown discoloration of the older leav...

    F. N. PONNAMPERUMA, WEN LIN YUAN, MAI THI MY NHUNG in Nature (1965)

  3. Article

    Physiological Disease of Rice attributable to Iron Toxicity

    IN the course of an investigation on the influence of the intensity of reduction of a submerged soil on the growth and yield of rice, it was observed that three of the twenty-seven treatments studied exhibited...

    F. N. PONNAMPERUMA, R. BRADFIELD, M. PEECH in Nature (1955)

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