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不同时期深施重肥对沙田柚生长结果的影响
区善汉;麦适秋;雷凤姣;陈宜超;李柳红;黄小明;
1.广西柑桔研究所;2.阳朔县农业局;3.阳朔县农业局 广西桂林541004;4.广西桂林541004;5.广西阳朔541900
摘要:
比较了夏季深施重肥与冬季深施重肥对沙田柚春梢、根系生长及产量、果实品质、叶片与土壤营养含量的影响。结果表明,夏季深施重肥可在一定程度上提高沙田柚叶片钙、铁、硼、全氮、全磷、全钾、0~40cm土壤速效磷与有机质含量,以及20~40cm土壤的全氮、速效钾和pH值,为根系的生长创造良好的土壤环境条件,进而提高叶片三要素的含量,显著促进新根和春梢的生长;夏季深施重肥的单株产量、单果重量与果实品质与冬季深施重肥间无显著差异。
关键词:  沙田柚    不同时期    深施重肥    生长结果
DOI:
分类号:
Fund project:国家科技攻关项目(国攻2001BA901A27);; 广西科技攻关项目(桂科攻0322001-5)~~
Abstract:
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