| Author | Vicha Mantamkan |
| Call Number | AIT SSPR no. AE-82-03 |
| Subject(s) | Drill (Agricultural implement)
|
| Note | A special study submitted in partial fulfilment of the requirements for the degree of Master of Engineering, School of Environment, Resources and Development |
| Publisher | Asian Institute of Technology |
| Abstract | 1he field performance tests were performed on a Yanmar direct sowing machine, 6 rows, gasoline engine, walking type which is used for a new direct
sowing method operated in puddled soil conditions. Before sowing the rice seed is coated with Gulper Dust (coating agent) and then sown by the machine
at a depth of about 1 cm. Calper Dust (coating agent) released oxygen gradually in the soil and surrounds the seed with oxygen, enabling the seed to germinate
even beneath the puddled soil. Three different plots and twenty four pots were done in this experiment. These pots tests were selected to compare
germination percentage of coated seeds and non-coated seeds. The field performance tests show that the direct sowing machine works best when ·the average depth of hard pan is about 20 cm and 1-2 cm deep standing water is available
in the field. The amount of seed needed for sowing is one third that of the conventional method. 1he new direct sowing method may achieve an equivalent
yield or better yield in rice production in comparison with the transplanting cultivation method and can grow the rice three times in one year. |
| Year | 1982 |
| Type | Special Study Project Report (SSPR) |
| School | School of Environment, Resources, and Development |
| Department | Department of Food, Agriculture and Natural Resources (Former title: Department of Food Agriculture, and BioResources (DFAB)) |
| Academic Program/FoS | Agricultural and Food Engineering (AE) |
| Chairperson(s) | Koike, Masayuki
|
| Examination Committee(s) | Singh, Gajendra ; Gee-Clough, D.
|
| Scholarship Donor(s) | Government of Australia |
| Degree | Special Studies Project Report (M. Eng.) - Asian Institute of Technology, 1982 |