磷酸镁铵缓释肥在旱稻上的减肥增效试验研究  

Study on the Effects of Fertilizer Reduction with Efficiency Increase by Appling Struvite on Upland Rice

作　　者：秦玉川[1] 刘本同[1] 王衍彬[1] 杨绍宗 王丽玲[1] 钱华[1] QING Yuchuan;LIU Bentong;WANG Yanbin;YANG Shaozong;WANG Liling;QIAN hua(Zhejiang Academy of Forestry,Hangzhou Zhejiang 310023)

机构地区：[1]浙江省林业科学研究院,浙江杭州310023

出　　处：《山东农业工程学院学报》2020年第12期32-34,共3页The Journal of Shandong Agriculture and Engineering University

基　　金：浙江省重点研发计划项目(编号:2018C02042)。

摘　　要：针对旱稻生产中化肥的施用利用率不高的现象,本文应用具有改善根际生物多样性功能的生物质小分子磷酸钙镁缓释肥,在不减少和减少肥料施用量两种情况下探讨其对旱稻减肥增效的作用。结果表明,不减肥施用磷酸钙镁缓释肥和减肥施用磷酸钙镁缓释肥,均能提高水稻根系活力和叶绿素含量,增加有效穗数;磷酸钙镁缓释肥不减肥处理比常规用肥处理增产7.8%,磷酸钙镁缓释肥减肥处理与常规用肥处理产量相当,可避免化学肥料的浪费和减缓农业面源污染。In view of the phenomenon of excessive fertilizer application with low efficacy in upland rice production,we conducted a trial of appling upland rice with Struvite,which is a citrate soluble natural crystal fertilizer and can improving rhizosphere biodiversity,in reducing chemical fertilizer amounts and increasing fertilizers efficiency.The results showed that applying Struvite and reduced Struvite can obtain equivalent upland rice yield compared with the conventional fertilization,but it can avoid the waste of chemical fertilizer and slow down the agricultural non-point source pollution.Applying Struvite in both cases can improve upland rice root activity and increase chlorophyll content and effective panicles.

关 键 词：磷酸镁铵缓释肥 减肥 增效 根系活力 叶绿素 旱稻 

分 类 号：S143[农业科学—肥料学]