有机肥对土壤地力和作物产量的影响及应用示例  

Important Effect of the Organic Fertilizer on Soil Fertility and Yield of Crop:a Case Study in Zhende Organic Farm,Henan,China

作　　者：甄珍[1] 博文静[1] 吴光磊[2] 罗小川 郑延海[1] 

机构地区：[1]中国科学院植物研究所植被与环境变化国家重点实验室,北京100093 [2]山东农业大学作物生物学国家重点试验室,山东泰安271018 [3]河南安阳贞德生态农场,河南安阳455000

出　　处：《工程研究（跨学科视野中的工程）》2012年第1期19-25,共7页JOURNAL OF ENGINEERING STUDIES

基　　金：山东省人民政府泰山学者专项经费资助(00523952)

摘　　要：施用有机肥可以有效改良土壤结构,提高土壤有机质含量,促进农作物增产,是发展可持续生态农业的必由之路。在综合介绍中国有机肥料的应用现状、有机肥对土壤地力及其作物产量的影响的基础上,以河南贞德生态农场的农田生态系统为例,通过估算农业生态系统中的氮素平衡指标,着重探讨农田土壤的最佳有机肥施用量。结果发现,为保持农田生态系统的氮素平衡,最少施用的有机肥量为25.5t/hm2。本研究为科学施用有机肥、节约生产成本、提高作物产量、发展可持续生态农业提供理论依据和技术支持。Using organic fertilizer can effectively improve soil structure,enhance soil organic matter content,and increase the yield of crop,which is the only way for the development of sustainable eco-agriculture.Our study mainly introduces the China＇s application of organic fertilizer,its important effect on soil fertility and the yield of the crops.An organic farm in Henan was chosen as research object.Calculation of the nitrogen input and output in this agro-ecosystem was done under the routine managements,and the best fertilizing scheme was inves-tigated.The results showed that the least input of the organic fertilizer was 25.5t/hm,which could maintain nitrogen balance of this agro-ecosystem.It is of significance to use organic fertilizer scientifically,reduce produc-tion costs,increase crop yields,and develop the sustainable ecological agriculture.

关 键 词：有机肥 土壤地力 作物产量 施肥量 

分 类 号：S158[农业科学—土壤学]