摘要
通过对海南省三亚市金煌芒果叶片中N、P、K、Ca、Mg、S、Fe、Mn、Cu、Zn、B11种营养元素含量进行全年跟踪分析,结果表明:⑴金煌芒果叶片养分年平均含量大小为:N>Ca>K>Mg>P>S>Mn>Fe>B>Zn>Cu,其中N、Ca含量较高,P、Mg、S、Zn含量月份间变化不明显。⑵金煌芒果的生长周期可分为4个阶段:营养生长期(5~9月)、生殖生长期(9~11月)、果实膨大期(11~来年的2月)和果实成熟期(2~4月)。各阶段叶片养分含量变化规律有所差异:营养生长期,叶片中营养元素除K、Cu含量有所下降之外,其余营养元素均有不同程度的升高。生殖生长期,叶片中的营养元素N、B、Ca含量上升,其他元素含量有不同程度的下降。果实膨大期,叶片中的N、K、Fe、Zn、B含量下降,Ca、Cu、Mn含量上升。果实成熟期,叶片中N、Mn、Fe、B、Cu含量均有不同程度增加,K、Ca含量有所降低。
After monthly sample and analysis the eleven nutrient elements such as Nitrogen,Phosphor,Potassium,Calcium,Magnesium,Sulfur,Iron,Manganese,Cuprum,Zincand Boron contend in Jinhuang mango leaves in Sanya in Hainan for a whole year.The results shown as follows:⑴The annual average nutrition content in Jinhuang mango leaves are N〉Ca〉K〉Mg〉P〉S〉Mn〉Fe〉B〉Zn〉Cu,and the content of Nitrogen,Calcium in higher levels , the content of Phosphor,Magnesium,Sulfur and Zinc in leaves fluctuated slightly.⑵We can divided the whole growth cycle of Jinhuang mango to four phases:vegetative growth phase,which is from May to September;reproductive growth phase,which is form September to December;fruit enlargement phase,which is from December to February;fruit maturation phase,which is from February to April.The change rules are not the same in different phases:during the vegetative growth phase,the content of all nine nutrient elements in leaves increased but Potassium, Cuprum declined;during the reproductive growth phase,the content of Nitrogen,Boron,Calcium in leaves increased,and the other declined;during the fruit enlargement phase,the content of Nitrogen,Potassium,Iron,Zinc,Boron in leaves declined,the content of Calcium,Manganese,Cuprum in leaves increased;during the fruit maturation phase,the content of Nitrogen,Manganese,Iron,Boron,Cuprum in leaves increased in different degrees,the content of Potassium, Calcium in leaves declined.
出处
《中国农学通报》
CSCD
北大核心
2010年第8期305-309,共5页
Chinese Agricultural Science Bulletin
基金
农业部948引进项目"芒果良种和产业化技术引进与推广"(2006-G33)
农业部行业科技项目"芒果规范栽培及冷藏气调贮藏技术研究"(nyhyzx07-032)
关键词
海南
金煌
叶片
营养规律
Hainan
Jinhuang
leaves
nutrition law