Strategies for timing nitrogen fertilization of pear trees based on the distribution, storage, and remobilization of 15N from seasonal application of (15NH4)2SO4

• Published in: Journal of Integrative Agriculture Vol. 19; no. 5; pp. 1340 - 1353
• Main Authors: JIANG, Hai-bo, LI, Hong-xu, ZHAO, Ming-xin, MEI, Xin-lan, KANG, Ya-long, DONG, Cai-xia, XU, Yangchun
• Format: Journal Article
• Language: English
• Published: Elsevier B.V 01.05.2020; Jiangsu Provincial Key Lab of Solid Organic Waste Utilization/Jiangsu Collaborative Innovation Center of Solid Organic Wastes/Educational Ministry Engineering Center of Resource-saving Fertilizers, Nanjing Agricultural University, Nanjing 210095, P.R.China%Institute of Fruit and Floriculture, Gansu Academy of Agricultural Sciences, Lanzhou 730070, P.R.China; KeAi Communications Co., Ltd
• Subjects: agriculture; autumn; China; fertilization time; fertilizer application; field experimentation; flowering; fruits; N distribution; N remobilization; N storage; nitrogen; Pear (Pyrus bretschneideri Rehd cv. Huangguan); pears; soil; spring; summer; winter; China; N distribution; fertilization time; N storage; Pear (Pyrus bretschneideri Rehd cv. Huangguan); N remobilization; Pear (Pyrus bretschneideri Rehd cv.Huangguan)

In order to improve the management of nitrogen (N) fertilization in pear orchards, we investigated the effects of application timing on the distribution, storage, and remobilization of N in mature pear trees in a field experiment at Jingtai County, Gansu Province, China. Nine trees were selected for...