NITROGEN STORAGE AND DISTRIBUTION AND REUSE OF ~(15)N-UREA APPLIED IN AUTUMN ON DIFFERENT BRANCH LEAVES OF WINTER JUJUBE(Zizyphus jujuba Mill. var. inermis Rehd) TREES

ZHAO Deng-chao~(1,3) JIANG Yuan-mao~1 PENG Fu-tian~1 HE Nai-bo~(1,2) ZHANG Xu~1 SUI Jing~1(1.College of Horticulture Science and Engineering,Shandong Agricultural University,Taian,Shandong 271018;2.Department of Science & Technology of Shandong Province,Jinan,Shandong 250011;3.Shandong Academy of Forestry,Jinan,shandong 250014)

Journal of Nuclear Agricultural Sciences ›› 2007, Vol. 21 ›› Issue (01) : 87-90+86.