Bulletin of the National Research Centre

Table 3 Relative yield of selected crops grown in a corn, small grain, legumes, or timothy rotation at different pH levels (USDA 2011)

From: Chemical indicators for pollution detection in terrestrial and aquatic ecosystems

	pH values
Crop	4.7	5	5.7	6.8	7.5
Corn	0	73	83	100	85
Wheat	68	78	89	100	99
Oats	77	93	99	98	100
Barley	0	23	80	95	100
Alfalfa	2	9	42	100	100
Soybean	65	79	80	100	93
Timothy	31	47	66	100	95

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