| 不同水势与施磷水平下的旱稻田土壤速效磷变化 |
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| 引用本文： | 刘全凤,阚晓君,梁凤琴.不同水势与施磷水平下的旱稻田土壤速效磷变化[J].河北农业科学,2006,10(3):50-53. |
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| 作者姓名： | 刘全凤 阚晓君 梁凤琴 |
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| 作者单位： | 1. 沧州职业技术学院,河北,沧州,061000
2. 唐山市农药监督管理站,河北,唐山,063000 |
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| 摘 要： | 采用田间试验和室内模拟方法,研究了旱稻生育期内3个施磷水平下2种水势处理的旱稻田土壤速效磷变化.结果表明,供磷水平不同,旱稻生育期内的土壤速效磷含量变化存在较大差异;土壤速效磷含量最大值在旱稻生育期内的出现时机存在明显差异.稻田水分状况对旱稻田土壤磷素的有效性有较大影响;保持较高的稻田水势有利于促进旱稻植株对土壤有效磷的吸收利用;旱稻栽培应在适度保障较高水势的同时,合理协调土壤的磷素营养.
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| 关 键 词： | 水分 陆稻 磷素营养 |
| 文章编号： | 1008-1631(2006)03-0050-04 |
| 收稿时间： | 2006-07-12 |
| 修稿时间： | 2006年7月12日 |
Study on Soil P Efficiency in Upland Rice Field under Different Water and Phosphorous Conditions |
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| LIU Quan-feng,KAN Xiao-jun,LIANG Feng-qin.Study on Soil P Efficiency in Upland Rice Field under Different Water and Phosphorous Conditions[J].Journal of Hebei Agricultural Sciences,2006,10(3):50-53. |
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| Authors: | LIU Quan-feng KAN Xiao-jun LIANG Feng-qin |
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| Institution: | 1. Cangzhou Vocational Education College, Cangzhou 061001 , China; 2. Station of Agricultural Chemical Agent Administration of Tangshan, Tangshan 063000, China |
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| Abstract: | Studies on soil P efficiency were usually concerning about aerobic crop.However,few study was done in upland rice,especially under water saving irrigation condition.In order to study the effect of three P application levels and two water regimes on soil P efficiency in upland rice during the growth duration,experiment was carried out at Huibei experiment station,Henan province in June-October,2002.We found that soil P efficiency showed its maximum value at different growth period under different P application levels,and effect of water regimes P efficiency depends on P application levels.P application in upland rice should consider field water conditions. |
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| Keywords: | Water Upland rice Phosphorus nutrition |
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