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在不同的固定锌水平的情况下施用不同比率的磷进行土壤培育的研究结果表明,施磷高达2400ppm都未改变从土壤提取的锌含量,这可能是试验所用土壤中的锌主要是有机态锌或闭蓄态锌的缘故。可是,对在不同处理培育的土壤上的咖啡苗的研究结果显示,咖啡叶片的锌含量随施磷量的增加而减少。磷和锌在植物体中可能相互影响。大量施磷降低咖啡叶片的锌含量,也提高叶片的磷含量,并促进植株生长。施硫酸锌后,咖啡叶片的锌含量和自土壤提取的锌含量都增加,这说明给土壤施锌盐,可能改善土壤和植物体中的锌的状况。
Results of soil incubation with different rates of phosphorus application at different fixed zinc levels showed that up to 2400 ppm phosphorus did not change the zinc content extracted from the soil, which is probably due to the fact that the zinc in the soil used for the experiment was mainly organic zinc Or closed state of zinc’s sake. However, the results of the study on coffee seedlings grown in different treatments showed that the zinc content of coffee leaves decreased with the increase of phosphorus application. Phosphorus and zinc may interact in plants. Large amounts of phosphorus reduce the zinc content of coffee leaves, but also increase the phosphorus content of leaves and promote plant growth. After applying zinc sulfate, the zinc content of the coffee leaves and the zinc content extracted from the soil both increased, indicating that application of zinc salts to the soil may improve the status of zinc in soil and plant body.