ROOT RESPONSES OF 3 GRAMINEAE SPECIES TO SOIL ACIDITY IN AN OXISOL AND AN ULTISOL
ROOT RESPONSES OF 3 GRAMINEAE SPECIES TO SOIL ACIDITY IN AN OXISOL AND AN ULTISOL
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DOI：
10.1097/00010694-197310000-00007
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发表时间：
1973-01-01
期刊：
影响因子：
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通讯作者：
PEARSON, RW
中科院分区：
文献类型：
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作者：
BRENES, E;PEARSON, RW
高粱根系对酸性淋溶土和酸性氧化土中的铝非常敏感。玉米根对该菌中度敏感，而星草根对该菌具有耐受性。代表性的酸性土壤从潮湿地区的波多黎各含有较少的土壤溶液铝比几个选择从美国东南部在相同的pH值水平。这证实了观察结果，即波多黎各土壤的临界pH值范围往往低于美国东南部的土壤。土壤溶液铝浓度可以满意地计算从土壤的pH值和EC的饱和膏提取物使用的方程从所提供的数据。
Sorghum roots were highly sensitive to soil solution Al present in acid Ultisols and Oxisols. Corn roots were moderately sensitive and stargrass roots were tolerant. Representative acid soils from the humid region of Puerto Rico contained less soil solution Al than did several selected from the southeastern United States at the same pH level. This confirms the observation that critical soil pH range tends to be lower in soils of Puerto Rico than in those of the southeastern United States. Soil solution Al concentration can be calculated satisfactorily from soil pH and EC of the saturated paste extract using an equation developed from the data presented.