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volume 35 issue 4 (december 2001) : 238 - 242

INTERACTION BETWEEN MAIZE AND SOYBEAN SOWN SIMULTANEOUSLY AND AT INTERVALS IN A HUMID TROPICAL ENVIRONMENT

P
P.O.Onolemhemhen
1Department of Crop Science, FaClilty of Agriculture, Ambrose Alli University, Ekpoma - Nigeria

  • Submitted|

  • First Online |

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Cite article:- P.O.Onolemhemhen (2025). INTERACTION BETWEEN MAIZE AND SOYBEAN SOWN SIMULTANEOUSLY AND AT INTERVALS IN A HUMID TROPICAL ENVIRONMENT. Indian Journal of Agricultural Research. 35(4): 238 - 242. doi: .

ABSTRACT

Maize (Zea mays L.) and Soybean (Glycine max M.) were sown simultaneously and either of the component crops relay-sown at intervals of 14, 21 and 28 days in mixtures at Ekpoma in the rain-forest zone of Nigeria in 1997 and 1998. Their monocultures were sown at the same density as the mixtures. Interactions between the two crops sown at the different intervals were significant. Relay-sown maize 21 or 28 days after sowing soybean significantly delayed tasselling for 35 days, reduced ear weight, ear height, and also maize grain yield. Relay-sowing of soybeans, 14 or 28 days after sowing maize, significantly delayed flowering, reduced number of pods and soybean grain yield. The land equivalent ratios (LER) and total grain yields were significantly lower when maize was relay-sown 28 days after sowing soybean and when soybeans were introduced between 21 and 28 days after sowing maize. Maize and soybean can be sown simultaneously or soybean introduced after maize in the humid tropical environment provided the component crops are not introduced later than 14 days after planting the other component crop

KEYWORDS

    REFERENCES

    1. Adelana, B.D. (1984). /feAgric. 6: 1-7.
    2. Apeji, S.A. (1988). Pests ofCowpea and Soybean in Nigeria, Federal Dept. of Pest Control Services, Kaduna 31 pp.
    3. Baker, E.F.l. (1978). Exp. Agric. 14: 293-298.
    4. Dalal, RC. (1997). Trop. Agric. 54: 189 - 192.
    5. Eneh, F.K. et al. (1978). Nigeria J. Palms Oil Seeds 13: 11-21.
    6. Francis, c.A. et al. (1978). Crop Science 18:242-246.
    7. Mongi, H.O. eta!. (1976). E. Afrie. Agric. ForJ. 42: 66-70.
    8. Olufajo, 0.0. (1995) SamaruJ. Agric R. 12: 3-11.
    9. Onolemhenhen, PO. (1997). Ph.D. Thesis, Post Graduate School Edo State University, Ekpoma 255 pp.
    10. Onolemhemhen, P.O. and Remison, S.U. (1999). Nigerian J. Palms Oil Seeds 14:
    11. Remison. S.U. (1982). Indian J. Agric Sci. 52: 500-505.
    12. Remison, S.l'. (1991). Niger. Agric. J. 26: 59-72.
    13. Steele, RGD, and Tonie, J.H. (1980). Principles and Procedures of statistics. McGraw-Hin Puolishing Co., New York, U.S.A.
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    Indian Journal of Agricultural Research
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      volume 35 issue 4 (december 2001) : 238 - 242

      INTERACTION BETWEEN MAIZE AND SOYBEAN SOWN SIMULTANEOUSLY AND AT INTERVALS IN A HUMID TROPICAL ENVIRONMENT

      P
      P.O.Onolemhemhen
      1Department of Crop Science, FaClilty of Agriculture, Ambrose Alli University, Ekpoma - Nigeria

      • Submitted|

      • First Online |

      • doi

      Cite article:- P.O.Onolemhemhen (2025). INTERACTION BETWEEN MAIZE AND SOYBEAN SOWN SIMULTANEOUSLY AND AT INTERVALS IN A HUMID TROPICAL ENVIRONMENT. Indian Journal of Agricultural Research. 35(4): 238 - 242. doi: .

      ABSTRACT

      Maize (Zea mays L.) and Soybean (Glycine max M.) were sown simultaneously and either of the component crops relay-sown at intervals of 14, 21 and 28 days in mixtures at Ekpoma in the rain-forest zone of Nigeria in 1997 and 1998. Their monocultures were sown at the same density as the mixtures. Interactions between the two crops sown at the different intervals were significant. Relay-sown maize 21 or 28 days after sowing soybean significantly delayed tasselling for 35 days, reduced ear weight, ear height, and also maize grain yield. Relay-sowing of soybeans, 14 or 28 days after sowing maize, significantly delayed flowering, reduced number of pods and soybean grain yield. The land equivalent ratios (LER) and total grain yields were significantly lower when maize was relay-sown 28 days after sowing soybean and when soybeans were introduced between 21 and 28 days after sowing maize. Maize and soybean can be sown simultaneously or soybean introduced after maize in the humid tropical environment provided the component crops are not introduced later than 14 days after planting the other component crop

      KEYWORDS

        REFERENCES

        1. Adelana, B.D. (1984). /feAgric. 6: 1-7.
        2. Apeji, S.A. (1988). Pests ofCowpea and Soybean in Nigeria, Federal Dept. of Pest Control Services, Kaduna 31 pp.
        3. Baker, E.F.l. (1978). Exp. Agric. 14: 293-298.
        4. Dalal, RC. (1997). Trop. Agric. 54: 189 - 192.
        5. Eneh, F.K. et al. (1978). Nigeria J. Palms Oil Seeds 13: 11-21.
        6. Francis, c.A. et al. (1978). Crop Science 18:242-246.
        7. Mongi, H.O. eta!. (1976). E. Afrie. Agric. ForJ. 42: 66-70.
        8. Olufajo, 0.0. (1995) SamaruJ. Agric R. 12: 3-11.
        9. Onolemhenhen, PO. (1997). Ph.D. Thesis, Post Graduate School Edo State University, Ekpoma 255 pp.
        10. Onolemhemhen, P.O. and Remison, S.U. (1999). Nigerian J. Palms Oil Seeds 14:
        11. Remison. S.U. (1982). Indian J. Agric Sci. 52: 500-505.
        12. Remison, S.l'. (1991). Niger. Agric. J. 26: 59-72.
        13. Steele, RGD, and Tonie, J.H. (1980). Principles and Procedures of statistics. McGraw-Hin Puolishing Co., New York, U.S.A.
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