当前位置: 首页 > 文章 > 古珊瑚朴叶营养元素含量季节变化规律 华中农业大学学报 1995 (6) 586-589
Position: Home > Articles > SEASONAL VARIATION IN THE CONTENT OF THE NUTRIENT ELEMENTS IN THE LEAVES OF THE ANCIENT JULIAN CELTIS Journal of Huazhong Agricultural University 1995 (6) 586-589

古珊瑚朴叶营养元素含量季节变化规律

作  者:
蔡丽萍;鲁涤非;于志熙;武慧贞
单  位:
华中农业大学林学系;武汉市园林局;武汉城建学院教务处
关键词:
珊瑚朴;营养元素;叶分析
摘  要:
通过对古珊瑚朴叶营养元素不同季节含量的测定与分析,结果表明:N、P、K含量在生长季节中呈下降趋势,Ca、Mg含量呈递增趋势;N/P比值在生长初期较低,枝条迅速生长期较高,以后呈F降趋势,而P/K的比值季节变化与N/P却相反;K/Ca、K/Mg的比值随季节变化呈下降趋势。根据研究结果初步确定了古珊瑚叶分析的最适来样期,并对合理施肥问题进行了探讨。
译  名:
SEASONAL VARIATION IN THE CONTENT OF THE NUTRIENT ELEMENTS IN THE LEAVES OF THE ANCIENT JULIAN CELTIS
作  者:
Cai Liping; Lu Difei; Yu Zhixi ;Wu Huizhen(1)Huazhong Agricultural University, Wuhan 430070;2)wihan Uthen Constrnction Institute, Wuhan 430074;3)Wuhan Garden Bureau, Wuhan 430014)
关键词:
julian celtis; nutrient element; leaf analysis
摘  要:
Studies on the seasonal variation in the content of the nutrient elements in the leaves of the ancient julian celtis showed: during the growth season, the content of N,P, K tended to decrease, while the content of Ca, Mg tended to increase. The value of N/P was the lowest at the beginning of the growth season, and reached the highest when the sticks grew quickly, then, it tended to decrease. The variation of the value of P/K during the growth season was quite the opposite. The value of K/Ca and K/Mg tended to decreaseduring the growth season. The opportune sampling time for leaf analysis was determined on the basis of the studies. The problem of fertilization was also discussed.

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