The effect of different fertilizer treatments on the nitrogen and organic matter content of a soil when cropped to a definite rotation for a period of twenty-four years
In a large part of the soil fertility studies that have been attempted in the past, a great number of the results obtained were based almost entirely on crop yields. These yields were used as the final criterion upon which to draw conclusions as to whether a given system of soil management was a pro...
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Format: | Others |
Language: | en_US |
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Virginia Agricultural and Mechanical College and Polytechnic Institute
2015
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Online Access: | http://hdl.handle.net/10919/53742 |