SPATIAL ARRANGEMENT AND PLANT POPULATION OF CORN/GROUNDNUT INTERCROPPING
Main Article Content
Abstract
The experiments was laid out in a 3 x 2 factorial in RCB with 3 replications. The monocorn spacing (row x plant) was 80 x 25,60 x 25 and 40 x 25 and 40 x 25 cm. and the optimum spacing was 75 x 25 cm. The spacings for monogroundnut was 20 x 20 cm. Spacing for the intercrops were arranged as follows :-
Two rows of corn, spacing at 40, 69 and 80 cm. intercropped with two rows of groundnut. The spacing of corn rows where the groundnut were planted were 1.0 m and 0.8 m. The plant spacing of both corn and legumes were the same as in monocrop.
The groundnut yield was affected by corn. The yield of groundnut decrease as decreasing corn spacing, while the yield of corn increased. The total yeild of intercrop was less than the maximum sole corn. However, the land equivalent ratio (LER) values indicated that there was practical advantage of intercropping groundnut with corn for the planting patterns used in the experiment. The detail of plant growth and light interception are discussed.
Article Details
References
Buranaviriyakul, S., Sampet, C., Insomphun, S., and Limpiti, S., (1987). Relay and intercropping of ligumes and cereals for highland. Annual Report to USDA/ARS, Fac. of Agr. CMU.
Murata, Y. and Matsushima, S, (1975). In Crop Physiology. ed L. Evans London: Cambridge University Press.
Tiyawalee, D., Pattare, V., Sanmaneechai, M., Wivatvongvana, P., and Hengsawad, V., (1978). Legumes for highland. Final Report to USDA/ARS. Fac. of Agriculture, Chiang Mai Univ.
Willey, R.W. (1979). Intercropping - its importance and its research needs, part I. Competition and yield advantages. Filed Crop Abstracts 32:1 - 10.
