摘要
为了解江苏省水稻施肥现状及其影响因素,采用农户调查数据和专家田间试验统计数据相结合的方法,实地调研了江苏省30个市(县)水稻肥料施用现状,并通过回归模型探讨影响农户施肥的主要因素。结果表明:苏北、苏中、苏南3个地区分别有57%、55%和54%的农户氮肥施用过量,氮肥生产力偏低。农户人均收入水平和主要劳动力年龄结构对氮肥用量的影响不显著;主要劳动力受教育年限、是否施用有机肥、是否参加过培训和土地所有形式等分别在不同显著水平上影响氮肥的施用。
To understand the actuality of rice fertilization and relevant influence factors,our study adopted the data from both questionary taken on 30 towns in Jiangsu Province,China and field experiments.The results obtained showed that 57%,55% and 54% of farmers used excessive nitrogen fertilizer in north,center and south of Jiangsu,respectively.Compared to expert experiments,the-nitrogen-use efficiency was relatively lower in this study.The phenomenon was mainly resulted from less education years and training of farmers.In addition,both the utilization form of land and being short of organic fertilizer application resulted in excessive fertilization and low nitrogen fertilizer efficiency.In contrast,the earning level and age of main labor force did not significantly affect the nitrogen fertilizer efficiency.
出处
《扬州大学学报（农业与生命科学版）》
CAS
CSCD
北大核心
2011年第2期48-52,80,共6页
Journal of Yangzhou University：Agricultural and Life Science Edition
基金
国家公益性行业(农业)科研专项(NYHYZX-200803030)
关键词
水稻
过量施肥
影响因素
rice
excessive fertilization
impact factors
