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This article in AJ

  1. Vol. 82 No. 6, p. 1066-1068
     
    Received: Dec 30, 1989


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doi:10.2134/agronj1990.00021962008200060007x

Barley, Lentil, and Flax Yield under Different Intercropping Systems

  1. Bijan K. Mandal  and
  2. Susanta K. Mahapatra
  1. Dep. of Agronomy, Bidhan Chandra Krishi Viswavidyalaya, Mohanpur 741252, Nadia, W.B., India

Abstract

Abstract

Intercropping is being adopted as a method of crop production throughout the developing tropics. The objective of this experiment was to assess how the productivity of intercrops was affected by the interaction of irrigation levels and mulches, compared to monocrops. Six-rowed barley (Hordeum vulgare L.) was intercropped with lentil (Lens culinaris Medik) and flax (Linum usitatissimum L.) with two levels of irrigations [(i) zero and (ii) one irrigation applied 35 d after planting] and two levels of mulch [(i) no mulch and (ii) rice straw mulch at the rate of approximately 7 Mg/ha−1]. Monocrop of each species were also grown. Seed yield of the monocrops were higher than their intercrop yields. Intercropped barley yielded 73 to 81% olf the yield to monoculture. Intercropped lentil yielded 30 to 34% of the yield of monoculture, whereas intercropped seed yield of flax ranged from 27 to 31% of monoculture. Yield increased from one application of irrigation ranged from 12 to 21% of zero irrigation. The increase in yield due to straw mulch was 11 to 17% higher over no mulch. The barley-lentil intercrop recorded higher values of land equivalent ratio (LER) and monetary advantage (MA), and had higher intercropping advantage of area time equivalent ratio (ATER) than the barley-flax intercrop.

Contribution from the Dep. of Agron., Bidhan Chandra Krishi Viswavidyalaya.

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