深浅施肥的肥料氮在碳酸盐土壤中的转化
左东峰
TRANSFORMATION OF NITROGENOUS FERTILIZERS OF SURFACE AND DEEP APPLICATION IN CALCAREOUS SOIL
Zuo Dongfeng (Beijing Agricultural University, Beijing 100094)
J4 . 1990, (04): 213 -218 .  DOI: 10.11869/hnxb.1990.04.0213