Influence of Fertilizer and Legume Crop Residues on Maize Yields

Studies to explore the N supplied by legume and nonlegume crop residues through crop rotation experiments on a sandy Oxisol and a clayey Ultisol were conducted. In the initial crop, soybean yields were only fair (1,680 to 1,792 kg/ha). Mungbeans (1,125 to 2,044 kg/ha), winged beans (1,456 to 2,800 kg/ha), and maize yields (4,480 to 6,123 kg/ha) were good. In the second crop (maize at both sites), grain yields were striking as a result of fertilizer N, regardless of the previous crop. On the Ultisol, maize tended to yield more following the legumes than following maize, but differences were not statistically significant. About 80%of the maximum maize yield was attained when maize followed the legumes and no fertilizer N was applied, especially in the Ultisol.

Issue Date:
Nov 13 1978
Publication Type:
Conference Paper/ Presentation
Record Identifier:
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 Record created 2017-09-13, last modified 2018-01-23

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