Effects of plant spacing and seed rate on leaf and grain production of maize (Zea mays L.) in southern Belize, Central America
1997
Johnson, D.E. | Wilman, D. (Welsh Institute of Rural Studies, Aberystwyth, Ceredigion (U.K.). University of Wales)
Maize (Zea mays L.) was grown with different distances between stations in southern Belize on land on which forest regrowth had been cut and left on the soil surface. The traditional practice was a spacing within the range 1-1.25 m x 1-1.25 m and four to six plants per station. Reducing the distance between stations to 0.75 or 0.5 m reduced the size of individual plants in terms of leaf size, number of leaves, total leaf area, weight of ears, number of grains, and 1000-grain weight, but increased the leaf area index and grain yield per hectare. Maximum grain yield was achieved at a spacing of 0.5 m x 0.5 m and one or two plants per station or a spacing of 0.75 m x 0.75 m and two, four, or six plants per station. Higher plant densities produced smaller ears compared with the traditional plant density.
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