摘要
作者于1987和1988两年对板栗叶片中矿质元素含量及其年周期变化进行了研究。结果表明:N、K 的含量随叶龄的增加而下降,Ca 的含量随叶龄的增加而增加;其中 Zn、Fe、Mn 和 B的含量随叶龄的增加而增加,特别是 Mn 和 B 的增加更为显著;叶中的 N 素水平不仅影响栗树的产量,而且还影响空苞形成,并目施 B 与否对叶片中 B 与 Mn 的含量都产生影响,即二者之间有负相关的趋势。
The authors made study on the chestnut leaf content and annual variation
of mineral elements in 1987-1988. The results showed that contents of N,K decreased
with increase of leaf age,and contents of Ca,Zn、Fe,Mn and B increased with leaf
age,the increase of Mn and B were especially obvious,The level of N in leaves not
only influenced the output of chestnut,bat also formation of empty bract.Applying B to
the soil can change contents of both B and Mn in the leaves,that is,there was a ne-
gatively correlation between the contents of B and Mn.
出处
《湖北林业科技》
北大核心
1991年第2期1-6,共6页
Hubei Forestry Science and Technology
关键词
板栗
叶片
矿质元素
含量
研究
Chestnut
leaf
mineral element
annual variation
