Residual effects of corn (Zea mays L.) residues on succeeding crops under different tillage levels
1985
Medina, G.B.
Field experiment revealed that corn, soybean or mungbean grown in a field previously planted to corn and had corn residues incorporated after harvest have a tendency to be taller than those plants grown after a fallow period (control). Significant difference in corn ear length and grain yield was observed between corn planted in a field with corn residues and corn planted after fallow. Higher grain yield and longer ear length were recorded in a field previously planted to corn and with corn residues incorporated. On the other hand, mungbean grain yield planted in a field previously cropped to corn and with corn residues applied was not significantly different from grain yield obtained after fallow. The results seemed to indicate that corn residues left in the field after harvest influenced a stimulatory response to the following crops when zero or minimum tillage was employed. The results of the pot experiment suggested that a decomposing corn residue in the field and or a field previously planted to corn and with corn residues spread on the soil surface after harvest will either inhibit or stimulate growth of subsequent corn, soybean or mungbean crops depending on the time of planting
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