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利用放射性同位素磷~(32)与稳定性磷元素化学性质基本相同的原理,把放射性同位素磷~(32)标记在含有磷元素的过磷酸钙肥料中,施入土壤或涂在小麦的叶片上,通过根系或叶片对磷元素吸收后在植株内的运转情况,分别在小麦的不同生育时期,测定各器官吸收积累磷"￡元素的相对数量及其与当时的生长速度和干物质积累的关系,为进一步研究小麦的施磷时期和方法提供依据. 一、材料和方法试验从1 9 75年开始至1 9 79年,供试验
Using radioactive isotope phosphorus ~ (32) and the stability of the basic chemical principles of phosphorus, the radioactive isotope phosphorus ~ (32) is marked in phosphorus-containing superphosphate fertilizer, applied to the soil or coated on the leaves of wheat , Through the roots or leaves of phosphorus in the plant after the operation of the situation, respectively, at different growth stages of wheat, each organ absorbs the relative amount of phosphorus accumulation and accumulation of elements and their growth rate and dry matter accumulation Relationship, to provide a basis for further research on the period and method of phosphorus application.First, materials and methods test from1975 to1979 for the test