减量配施缓释肥对晚稻产量及肥料利用率的影响  

Effects of Reducing and Applying Slow Release Fertilizer on Yield and Fertilizer Utilization of Late Rice

作　　者：周华萍 施波 阮倩茜 ZHOU Huaping;SHI Bo;RUAN Qianqian(Hangzhou Xiaoshan District Agriculture and Forestry Technology Extension Center,Hangzhou 311203,China;Hangzhou Xiaoshan District Seed Management Station,Hangzhou 311201,China)

机构地区：[1]杭州市萧山区农(林)业技术推广中心,浙江杭州311203 [2]杭州市萧山区种子管理站,浙江杭州311201

出　　处：《信阳农林学院学报》2024年第2期93-96,共4页Journal of Xinyang Agriculture and Forestry University

摘　　要：通过田间小区试验,以单季晚稻春优927为材料,研究常规施肥和金正大沃夫特缓释肥的肥料利用率,并通过产量、单株经济性状等指标综合分析肥料对利用率的影响。结果表明,金正大沃夫特缓释肥氮、磷、钾肥利用率分别比常规施肥利用率高8.1%、0.58%、0.08%,在化肥投入折纯总量减少17.9%的情况下,缓释肥施肥区仍比常规施肥区增产7.75%,沃夫特缓释肥对晚稻形成有效穗、提高结实率有明显作用。Through field plot experiment,using single-season late rice Chunyou 927 as the material,the fertilizer utilization ratio of conventional fertilization and Kingenta Volfertile slow-release fertilizer was studied,and the influence of fertilizer on utilization ratio was comprehensively analyzed through yield,economic characters per plant and other indicators.The results showed that the utilization rates of nitrogen,phosphorus and potassium in Jin Zhengda Wofute slow-release fertilizer were 8.1%,0.58% and 0.08% higher than those in conventional fertilization,respectively.The yield in slow-release fertilizer application area was still 7.75% higher than that in conventional fertilization area when the total amount of chemical fertilizer input was reduced by 17.9%.Wofute slow-release fertilizer had obvious effects on forming effective panicles and improving seed setting rate of late rice.

关 键 词：晚稻 肥料利用率 缓释肥 减肥增效 

分 类 号：S143[农业科学—肥料学] S511[农业科学—农业基础科学]