关键词: 高强力优质棉, 养分吸收, 模拟

Abstract: During the quickly growing period, about 60% of the whole amount of nutrients N, P₂O₅ and K₂O are absorbed by the cotton lines of high fiber strength qualities, with the maximum capacity and intensity lower than cotton varieties of common qualities. In the later developmental stage, the nutrient absorption capacity and the nutrient percentages in organs are also lower than the latter. N, P₂O₅ are mainly distributed to leaves, while the K₂O mainly to fruit branches and stems. The percentages of N, P₂O₅ in leaves are the highest in all kinds of organs, and so are that of K₂O in leafstalks. The percentage of N in leafs shows the droping tendency with growth advancing.

Key words: high fiber strength cotton lines, nutrient absorption character, simulation