甘肃主要农业土壤磷、锌关系的研究

通过玉米幼苗盆栽试验结果表明：（１）施磷能显著增加土壤速效磷含量和玉米幼苗吸磷量；（２）施锌显著增加土壤有效锌含量和玉米幼苗的吸锌量；（３）施锌增加玉米苗吸磷量，但不影响土壤速效磷含量。施磷，对低磷土壤能促进玉米幼苗的吸锌量，但对高磷土壤则有碍锌的吸收。

Study on Interaction between P and Zn on Principal Agricultural Soil in Gansu

The results by pot experiment with corn seedling showed as follows:(1)The Papplication significantly increased both the content of available P in soil and the uptake of Pby corn seedling.(2)The Zn application significantly increased both the content oi availableZn in soil and the uptake of Zn by corn seedling.(3)The Zn application increased the uptakeof P by corn seedling but did not influence on the content of available P in soil.The P applica-tion increased the uptake Zn by corn seedling in low P level soil,however,impeded in highPlevel soil.