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This article in AJ

  1. Vol. 51 No. 10, p. 587-590

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Influence of Cropping System-Treatment Combinations and Climatic Factors on Corn Yields in the Blackland Area of Texas1

  1. J. W. Collier2



Without irrigation, corn after sweetclover produced higher yields than continuous corn every year but one. Responses to nitrogen were small and inconsistent. Irrigation increased yields but responses to nitrogen occurred only in the continuous corn system. Soil nitrates and leaf nitrogen were generally higher from plots following sweetclover. Maximum yields were negatively correlated with the mean maximum temperatures during the 3-week period after silking.

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