| 苏北潮盐土地区水稻磷钾肥料效应的研究 |
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| 引用本文： | 孙国跃. 苏北潮盐土地区水稻磷钾肥料效应的研究[J]. 吉林农业科学, 2012, 0(5): 34-37 |
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| 作者姓名： | 孙国跃 |
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| 作者单位： | 江苏省响水县土壤肥料管理站 |
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| 基金项目： | 2010年农业部测土配方施肥补贴项目[农财办〔2010〕47号,苏财农〔2010〕162号];2011年农业部测土配方施肥补贴项目[农财办〔2011〕43号,苏财农〔2011〕194号] |
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| 摘 要： | 通过对2010～2011年水稻"3414"磷钾二因素肥料效应试验结果进行分析,确定苏北潮盐土地区在土壤有效磷达到12.5 mg/kg、速效钾达到86.6 mg/kg时,水稻施用磷、钾肥增产效果不显著;增加用量后会使其当季利用率降低。推荐本地区(土壤有效磷达到12.5 mg/kg、速效钾达到86.6 mg/kg时)水稻磷(P2O5)、钾(K2O)的施用量分别为45 kg/hm2和22.5 kg/hm2,全部一次性基施。
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| 关 键 词： | 水稻 “3414”试验 磷肥 钾肥 潮盐土 推荐施肥量 |
Studies on Effect of P and K fertilizer on Rice in the Alluvial-Salty Soil of Northern Jiangsu Province |
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| SUN Guo-yue. Studies on Effect of P and K fertilizer on Rice in the Alluvial-Salty Soil of Northern Jiangsu Province[J]. Journal of Jilin Agricultural Sciences, 2012, 0(5): 34-37 |
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| Authors: | SUN Guo-yue |
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| Affiliation: | SUN Guo-yue(Soil and Fertilizer Station of Xiangshui County,Jiangsu Province,Xiangshui 224600,China) |
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| Abstract: | Field test of'3414'P and K fertilizer experiments were carried out on rice in the alluvial-salty soil of northern Jiangsu Province in 2010 and 2011.The results showed that application P,K fertilizer could not significant increase production of rice when soil available phosphorus was more than 12.5 mg/kg and soil available potassium was more than 86.6mg/kg.Increasing amount of P,K fertilizer application reduced the P,K use efficiency.The recommend fertilization amounts were 45 kg/hm2 P2O5,22.5 kg/hm2 K2O and P,K fertilizer were dressing at sowing. |
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| Keywords: | Rice 3414 fertilizer experiment P fertilizer K fertilizer Alluvial-salty soil Recommend fertilization amount |
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