| 水稻苗床土壤调酸后对土壤酶活性及一些营养元素的影响 |
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| 引用本文： | 唐咏,张中原.水稻苗床土壤调酸后对土壤酶活性及一些营养元素的影响[J].生态学杂志,1994,13(3):68-69. |
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| 作者姓名： | 唐咏 张中原 |
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| 作者单位： | 沈阳农业大学，沈阳市土肥工作站 |
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| 摘 要： | 水稻苗床土壤调酸后对土壤酶活性及一些营养元素的影响唐咏，梁成华，张中原，李焕珍（沈阳农业大学，１１０１６１）（沈阳市土肥工作站，１１００３４）ＥｆｆｅｃｔｓｏｆＳｏｉｌＡｃｉｄｉｆｉｃａｔｉｏｎｏｎＥｎｚｙｍｅＡｃｔｉｖｉｔｉｅｓａｎｄＮｕｔｒｉｅｎ...
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| 关 键 词： | 水稻 土壤酸化 酶活性 营养元素 |
Effects of Soil Acidification on Enzyme Activities and Nutrient Elements in Rice Nursery Soils. |
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| Tang Yong,Liang Chenghua.Effects of Soil Acidification on Enzyme Activities and Nutrient Elements in Rice Nursery Soils.[J].Chinese Journal of Ecology,1994,13(3):68-69. |
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| Authors: | Tang Yong Liang Chenghua |
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| Abstract: | Studies of soil acidification in rice nurserv soil show that the activity of soil urease is decreased,the activitv of phosphatase in alkaline soil is increased and that in neutral soil is decreased after acidifing soils to pH 4.5.The volatilization rate of ammoniacal nitrogen in the soils is decreased obviously by acidifing the soil,especial-Iy in alkaline soils. The available phosphate in alkaline soils is increased,but that in neutral soil is decreased slightly as the soil is acidified.The amount of positive trace elements in soil are increased differently in acid conditions.Thus acidifing dry nursery soils in early spring can improve available nutrients for rice in the soils. |
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| Keywords: | enzyme activity trace element available phosphate soil acidification |
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