| 黄泥土施用磷石膏的后效试验 |
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| 引用本文： | 肖厚军,徐大地,张文安,刘友云,严绪成,何成文,韦小平. 黄泥土施用磷石膏的后效试验[J]. 贵州农业科学, 2001, 29(2): 50-52 |
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| 作者姓名： | 肖厚军 徐大地 张文安 刘友云 严绪成 何成文 韦小平 |
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| 作者单位： | 贵州省农业科学院 综合研究所， 贵阳 550006 |
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| 基金项目： | 国家“九五”科技攻关(96-004-03-11)研究内容之一 |
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| 摘 要： | 3年磷石膏后效观察试验结果表明磷石膏在黄泥土上增产作用有明显的后效，但土壤和施用量不同，持续时间不一样。酸性黄泥土以100～150kg/667m
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| 关 键 词： | 磷石膏； 酸性黄泥土； 微酸性黄泥土；后效作用 |
| 文章编号： | 1001-3601(2001)02-0039-0050-03 |
| 修稿时间： | 2000-12-25 |
After-effect of Phospho-gypsum in Acidulous Yellow Upland Soil |
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| XIAO Hou-jun. After-effect of Phospho-gypsum in Acidulous Yellow Upland Soil[J]. Guizhou Agricultural Sciences, 2001, 29(2): 50-52 |
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| Authors: | XIAO Hou-jun |
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| Abstract: | The field experiment was executed to investigate after-effect ofphospho-gypsum in acid yellow soil from 1998 to 2000. The results showed that after-effect of phospho-gypsum varied with soil pH and application amount of phospho-gypsum. Within soil pH 4.0～6.5, after-effect of phospho-gypsum have a negative correlation with soil pH and have a positive correlation with application amount of phospho-gypsum (750～2 250 kg/ha). Phospho-gypsum is suitable for applying in acidic yellow soil (pH≤5.0) and its proper application amount is 2250 kg/ha. |
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