| 平衡施肥与常规施肥对冬作马铃薯肥效的比较 |
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| 引用本文： | 张新明,伍尤国,徐鹏举,官利兰,陈 洪,曹先维. 平衡施肥与常规施肥对冬作马铃薯肥效的比较[J]. 华南农业大学学报, 2013, 34(4): 475-479 |
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| 作者姓名： | 张新明 伍尤国 徐鹏举 官利兰 陈 洪 曹先维 |
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| 作者单位： | 1 华南农业大学 资源环境学院,;2 华南农业大学 园艺学院，;2 华南农业大学 园艺学院，;1 华南农业大学 资源环境学院,;3 惠东县生产力促进中心，;2 华南农业大学 园艺学院， |
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| 基金项目： | 现代农业产业技术体系专项资金资助（CARS-10-ES14）；广东省科技计划项目（2009B020409003,2010B020315022）；国家科技支撑计划（2007BAD89B14）; 惠东县委托科技项目 |
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| 摘 要： | 通过田间试验，设置了平衡施肥和常规施肥及相应的缺肥试验、氯化钾替代硫酸钾处理,研究了不同施肥处理对冬作马铃薯的肥效.结果表明：平衡施肥处理对冬作马铃薯的综合效应优于常规施肥处理，主要表现为商品薯产量、经济效益、磷素表观利用率和维生素的质量分数等参数分别比常规处理高4 451 kg/hm2、8 984元/hm2、33.1%和42.8 mg/kg.用氯化钾替代硫酸钾，产量、经济效益和氮素表观利用率会降低，特别是商品薯产量和氮素表观利用率显著下降（P<0.05）.建议在供试条件下选用硫酸钾作为冬作马铃薯的主要钾源效果更好.
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| 关 键 词： | 冬作马铃薯；平衡施肥；肥效；经济效益；钾肥种类 |
| 收稿时间： | 2012-12-13 |
A Comparison of Fertilizer Effects Between Balanced and Conventional Fertilization on Winter Potato |
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| Affiliation: | 1 College of Natural Resources and Environment, South China Agricultural University,;2 College of Horticulture, South China Agricultural University,;2 College of Horticulture, South China Agricultural University,;1 College of Natural Resources and Environment, South China Agricultural University,;3 Huidong Productivity Promotion Center,;2 College of Horticulture, South China Agricultural University, |
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| Abstract: | Field experiments of treatments concerning balanced and conventional fertilization, including lack of N or P or K fertilizer, using potassium chloride to replace potassium sulphate were set up. The results showed that the comprehensive effects of balanced fertilization were better than those of conventional fertilization; balanced fertilization had a significantly higher marketable potato yield, 4 454 kg/hm2, economic profit, 8 984 RMB Yuan/hm2, apparent phosphorus element use efficiency reaching 33.1% and Vc content, 42.8 mg/kg. When using potassium chloride to replace potassium sulphate, the yield, economic profit and apparent nitrogen-element use efficiency(ANEUE) would be lower, in particular marketable potato yield and ANEUE decreased significantly at 0.05 level. It was suggested that under the conditions tested, potassium sulphate should be selected as the main potassium source. |
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| Keywords: | winter potato balanced fertillization fertilizer effect economic profit types of potassium fertilizer |
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