摘要
对叶用银杏进行不同施肥方式和不同肥料种类、用量和比例的研究。结果表明： 用３０ ｇ· Ｌ－ １ 绿丰威２ 号或尿素＋ 磷酸二氢钾进行根外施肥， 单株叶质量增加２２２８ ％ ～３７７８ ％ 和２０３３ ％ ～２４４４ ％ 。播种苗基肥用量７５０ ｔ·ｈ ｍ － ２ 的单株叶质量比基肥用量为３７５ ｔ·ｈ ｍ － ２ 的增加９２０７ ％ 。采用施尿素２７７ ｇ·ｍ － ２ 、过磷酸钙３８４ｇ·ｍ － ２ 和氯化钾１１１ ｇ·ｍ － ２ 的配方施肥， 单株叶质量增加１２０２ ％ 。为叶用银杏栽培提供了适宜的施肥技术。表３
The effects of defferent fertilizing measurements,different fertilizers and their amounts and proportions on Ginkgo biloba were studied in 1996～1997.The results showed that spraying 3 0 g·L -1 Leffingwell 2 and mixture of urea with potassium dihydrogen phosphate could increase leaf weight of single tree by 22 28%～37 78% and 20 33%～24 44% respectively.During seedling,base manure of 75 0 t·hm -2 could increase leaf weight by 92 07%,compared with that of 37 5 t·hm -2 .Fertilization of 27 7 g·m -2 urea,35 4 g·m -2 superphosphate and 11 1 g·m -2 potassium shloride increased leaf weight by 12 02%.
出处
《浙江林学院学报》
CSCD
1999年第3期265-269,共5页
Journal of Zhejiang Forestry College
基金
浙江省自然科学基金
关键词
银杏
叶质量
施肥
营养物
Ginkgo biloba
leaf weight
fertilizing
nutrients
