长江中游地区水稻-油菜轮作体系磷肥高效施用技术规程  

Technical regulations for high-efficiency application of phosphate fertilizer in rice-rapeseed rotation system in the middle reaches of Yangtze River

作　　者：闫金垚 王昆昆 廖世鹏[1] 李小坤[1] 任涛[1] 鲁剑巍[1] YAN Jinyao;WANG Kunkun;LIAO Shipeng;LI Xiaokun;REN Tao;LU Jianwei(College of Resources and Environment,Huazhong Agricultural University/Key Laboratory of Arable Land Conservation in Middle and Lower Reaches of Yangtze River,Ministry of Agriculture and Rural Affairs,Wuhan 430070,China)

机构地区：[1]华中农业大学资源与环境学院/农业农村部长江中下游耕地保育重点实验室,湖北武汉430070

出　　处：《磷肥与复肥》2021年第2期37-39,共3页Phosphate & Compound Fertilizer

基　　金：国家重点研发计划“肥料磷素转化与高效利用机理”(2017YFD0200200)。

摘　　要：针对长江中游地区水稻-油菜轮作周年磷肥用量不合理、利用率低的问题,在不继续增加土壤有效磷积累的情况下,根据目标产量和养分平衡法确定周年磷肥适宜用量及合理分配比例,构建适合于长江中游地区水稻-油菜生产的磷肥高效施用技术。对该技术的操作性提出了相应的规范,包括周年磷肥用量及分配、不同作物施用磷肥种类以及秸秆还田方法及配套技术,旨在减少水稻-油菜轮作体系土壤有效磷积累和环境磷素损失,提高作物磷肥利用率。Aiming at the problem of unreasonable annual phosphate(P)fertilizer consumption and low utilization rate of rice-rapeseed rotation in the middle reaches of Yangtze River,the appropriate annual P fertilization amount and reasonable distribution ratio are determined,the high-efficiency P fertilizer application technology is constructed based on the target yield and nutrient balance method without increasing soil available P accumulation.The corresponding specifications for the operability of this technology,including annual P fertilization rates and distribution,different seasons of P fertilizer types,straw returning methods and supporting technologies are proposed,aiming to reduce soil available P accumulation and environmental P loss in the rice-rapeseed rotation system,improve crop P fertilizer utilization.

关 键 词：水稻-油菜轮作 周年磷肥用量 养分平衡 磷肥种类 秸秆还田 

分 类 号：TQ442[化学工程—化学肥料工业] S147[农业科学—肥料学]