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
周华萍 1施波 1阮倩茜2
作者信息
- 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
- 折叠
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.
Abstract
Through field plot experiment,using single-season late rice Chunyou 927 as the material,the fertilizer utilization ra-tio of conventional fertilization and Kingenta Volfertile slow-release fertilizer was studied,and the influence of fertilizer on uti-lization 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 appli-cation 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Key words
late rice/fertilizer utilization rate/slow release fertilizer/lose weight and increase efficiency引用本文复制引用
出版年
2024
NETL
NSTL
万方数据