Effect of sowing seasons on the production of corn [Zea mays] and sorgo [Sorghum bicolor]
1991
Kinoshita, S. (Tottori Univ. (Japan). Faculty of Agriculture) | Yamane, M. | Kinoshita, O. | Oura, R. | Sekine, J.
The present study was to determine the possibility of the two-harvest system of corn or sorgo in San'in area where annual mean temperature is below 16 degrees centigrade using 3 varieties of corn and one variety of sorgo. Aerial part of corn with sowing space of 30cm was harvested at a rate of over 85% of seeds sown in summer cropping irrespective of variety. Corn with sowing space of 25cm showed a lower harvest rate of aerial part than that with space 30cm. In fall cropping, however, the harvest rate of aerial part tended to be higher in 25cm spacing than in 30cm. Sorgo showed a fairly low harvest rate of its aerial part irrespective of sowing space or sowing season. Dry-matter and total digestible nutrients productions of corn were satisfactory and showed that the two-harvest system was possible for corn in San'in area, provided variety and sowing space were properly selected. Results of sorgo showed a little possibility of the system in this area because of a low harvest rate of aerial part
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