山东农业科学2025，Vol.57Issue(1)：103-109,7.DOI:10.14083/j.issn.1001-4942.2025.01.014
控释氮肥一次性施用对滨海盐碱地土壤理化性质及小麦产量的影响
Effects of One-Time Application of Controlled-Release Nitrogen Fertilizer on Soil Physicochemical Properties and Wheat Yield in Coastal Saline-Alkali Land
摘要
Abstract
In order to explore the feasibility of light and simplified fertilization on saline-alkali land and clarify its improving effect on quality of coastal saline-alkali soil,a field experiment of one-time application of different types of controlled-release fertilizer was carried out in saline-alkali land in Dongying,Shandong Prov-ince.Six fertilization treatments including no nitrogen fertilization(control,CK),farmer's habitual fertiliza-tion(FP),optimized fertilization(OPT),controlled-release nitrogen fertilizer A(CRFA,water based resin coated urea),controlled-release nitrogen fertilizer B(CRFB,polyurethane coated urea)and controlled-re-lease nitrogen fertilizer C(CRFC,humic acid type urea)were set to analyze the effects of different types of controlled-release fertilizer treatments on soil physicochemical properties and wheat yield in saline-alkali land.The results showed that compared with FP treatment,the wheat yield in OPT,CRFA,CRFB and CRFC treat-ments increased by 5.9％,17.6％,29.6％and 17.2％,respectively,and in 0～20-cm soil layer,the inorganic nitrogen content at wheat maturity stage increased by 18.6％,121.9％,175.4％and 144.6％,the nitrogen use efficiency increased by 74.4％,95.1％,172.0％and 115.6％,and the total amount of soluble salt ions de-creased by 4.9％,7.2％,9.5％and 9.1％,respectively.Compared with FP treatment,the proportion of＞2 mm and 0.5～1 mm particle size aggregates in CRFA,CRFB and CRFC treatments increased by 166.2％,133.8％,90.0％and 40.3％,34.3％,62.7％,respectively,while the proportion of＜0.053 mm particle size aggregates significantly decreased by 78.4％,73.8％and 52.5％,respectively.One-time application of con-trolled-release nitrogen fertilizer could improve the physicochemical properties of mild saline-alkali soil,and the one-time application of CRFB had the best effect on coastal saline-alkali soil improvement and wheat yield promotion under the present experimental conditions.关键词
滨海盐碱地/小麦/控释氮肥/土壤养分/产量Key words
Coastal saline-alkali land/Wheat/Controlled-release nitrogen fertilizer/Soil nutrients/Yield分类
农业科技引用本文复制引用
谢宏伟,吴小宾,王奥宇,郑福丽,陈晓影,谭德水,刘兆辉..控释氮肥一次性施用对滨海盐碱地土壤理化性质及小麦产量的影响[J].山东农业科学,2025,57(1):103-109,7.基金项目
国家重点研发计划项目(2021YFD1900903) （2021YFD1900903）
国家小麦产业技术体系项目(CARS-03) （CARS-03）
山东省重点研发计划科技示范工程项目(2022SFGC0303) （2022SFGC0303）
