定安县稻作区水稻控释肥合理施用研究
Study on suitable methods for applying a rice-specific controlled-release fertilizer in Ding'an rice area
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摘要: 通过田间试验.在海南定安县稻作区对水稻控释肥的适宜用量和施用方法进行优化研究.结果表明.一次性施用控释肥与当地常规分次施肥相比,可提高水稻株高、有效穗数、穗长、每穗粒数、千粒重,降低秕粒率,改善经济性状;每667 m2一次基施控释肥40 kg即可满足水稻本田期的营养需求,比常规分次施肥增产8.8%～12.6%,增收66.2～85.6元.
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