华北农学报2016，Vol.31Issue(5)：146-151,6.DOI:10.7668/hbnxb.2016.05.022
长期定位施肥对土壤氮素矿化与作物产量的影响
Effect of Long-term Fertilization on Soil Nitrogen Mineralization and Crop Yield
摘要
Abstract
The objective of the test is to reveal the effects of long-term manure and its combination with nitro-gen fertilizer on nitrogen mineralization of non-calcareous fluvo-aquic soil,and exploring the relationship between crop yield and mineralization.Based on the long-term fertilization test in Laiyang,Shandong Province,which was started in 1 978,the effect of long-term fertilization on nitrogen mineralization was studied by ISC-IERB(In-situ Soil Core and Ion Exchange Resin Bag),and the correlation analysis between the crop yield and the mineralization was carried out.Long-term application of organic manure and nitrogen fertilizer could significantly increase the non-cal-careous soil total nitrogen,mineral nitrogen,net nitrogen mineralization,nitrogen uptake and yield of winter wheat or summer maize,and in the same manure(or nitrogen fertilizer)level,the increase of the amount of nitrogen fertilizer (or manure)was increased,among these,the increase of M2 N 2 (combined application of high amount of manure and high amount nitrogen fertilizer)was the highest,and the yield of winter wheat and summer maize respectively were 6 803,1 1 935 kg /ha;long-term fertilization in summer maize season soil nitrogen net mineralization,net nitrogen mineralization rate was significantly greater than the winter wheat season,the increase of fertilization treatment were 7.1 % -62.7%,1 6.2% -76.0%;the correlation analysis showed that the yield of winter wheat and summer maize and pre sowing soil total nitrogen,mineral nitrogen content,net mineralization of nitrogen was significantly relativity, but not significantly relativity with nitrogen leaching amount.Application of organic manure and nitrogen fertilizer is an effective means to increase the potential of soil nitrogen supply,plant and season is an important factor to affect the mineralization of soil nitrogen.关键词
长期定位施肥/土壤氮素/氮素矿化/作物产量Key words
Long-term fertilization/Soil nitrogen/Nitrogen mineralization/Crop yield分类
农业科技引用本文复制引用
南镇武,梁斌,陈延玲,刘树堂,刘锦涛..长期定位施肥对土壤氮素矿化与作物产量的影响[J].华北农学报,2016,31(5):146-151,6.基金项目
山东省现代农业产业技术体系建设经费项目（SDAIT-01-022-06）；鲁东丘陵区小麦玉米水肥自然资源高效利用综合技术集成与示范研究项目（2013BAD07B06-03）；公益性行业（农业）科研专项 （）
