Grain yield and forage yield of corn as affected by times of plant and top cuttings
1989
Wirot Chonwiriyakun (Office of the Permanent Secretary Ministry of Agriculture and Cooperatives, Bangkok (Thailand). Central Regional Agricultural Centre) | Suphot Fuangfuphong | Sayan Thatsri
Two experiments were conducted at the National Corn and Sorghum Research Center, Nakorn Ratchasima Province from April to October of 1987 in order to seek corn cultivation practices which could produce both grain and rough feed for feeding. The first experiment was a study on the appropriate date for a stem cutting (thinning) of high density in which plant density was double that of recommended plant density. The high density was obtained by planting with 37.5 cm. x 25 cm. spacing one plant per hill. This high density was then thinned at various developmental stages between 3 to 9 weeks after emergence for comparison with that of recommended plant density planting (75 cm. x 25 cm. spacing one plant per hill). Stem cutting was practiced by cutting every alternate row. In the second experiment, the top portions of plant just above the first leaf next to the top ear were cut at stages between 24 to 42 days after silking. The objectives of the this investigation were to find appropriate cutting date of stem and top portion of plant which would not affect grain production and also the measure the quantity and quality of the cut-plant materals which would be used as animal feed.
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